{"id":6202,"date":"2021-11-09T09:36:00","date_gmt":"2021-11-09T02:36:00","guid":{"rendered":"https:\/\/kiencang.net\/?p=6202"},"modified":"2022-03-03T14:20:57","modified_gmt":"2022-03-03T07:20:57","slug":"cach-may-tim-kiem-danh-gia-lien-ket","status":"publish","type":"post","link":"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/","title":{"rendered":"10 minh h\u1ecda v\u1ec1 c\u00e1ch m\u00e1y t\u00ecm ki\u1ebfm \u0111\u00e1nh gi\u00e1 li\u00ean k\u1ebft: T\u1ea5t c\u1ea3 c\u00e1c li\u00ean k\u1ebft kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ecnh \u0111\u1eb3ng v\u1edbi nhau"},"content":{"rendered":"\n<p>B\u00ean c\u1ea1nh vi\u1ec7c <a href=\"https:\/\/kiencang.net\/nghien-cuu-tu-khoa-az\/\">nghi\u00ean c\u1ee9u t\u1eeb kh\u00f3a<\/a>, th\u00ec <a href=\"https:\/\/kiencang.net\/xay-dung-lien-ket\/\">x\u00e2y d\u1ef1ng li\u00ean k\u1ebft<\/a> lu\u00f4n l\u00e0 th\u1ee9 \u00e1m \u1ea3nh ng\u01b0\u1eddi l\u00e0m SEO. Ch\u00fang ra l\u00fac n\u00e0o c\u0169ng t\u00f2 m\u00f2 v\u1ec1 <strong>c\u00e1ch m\u00e1y t\u00ecm ki\u1ebfm \u0111\u00e1nh gi\u00e1 li\u00ean k\u1ebft<\/strong> nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n<p>V\u00e0o n\u0103m 1997, ng\u01b0\u1eddi s\u00e1ng l\u1eadp Google t\u1ea1o ra m\u1ed9t thu\u1eadt to\u00e1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ea7m quan tr\u1ecdng v\u00e0 ph\u1ed5 bi\u1ebfn c\u1ee7a trang (li\u00ean k\u1ebft) d\u1ef1a tr\u00ean m\u1ed9t s\u1ed1 nguy\u00ean l\u00fd c\u0103n b\u1ea3n:<\/p>\n\n\n\n<ul><li>Li\u00ean k\u1ebft tr\u00ean trang web c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c di\u1ec5n gi\u1ea3i nh\u01b0 l\u00e0 m\u1ed9t phi\u1ebfu b\u1ea7u b\u1ecf cho ngu\u1ed3n m\u00e0 n\u00f3 nh\u1eafm \u0111\u1ebfn.<\/li><li>T\u1ea5t c\u1ea3 c\u00e1c phi\u1ebfu b\u1ea7u, \u1edf th\u1eddi \u0111i\u1ec3m ban \u0111\u1ea7u, \u0111\u1ec1u \u0111\u01b0\u1ee3c xem l\u00e0 ngang b\u1eb1ng nhau.<\/li><li>Trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n thu\u1eadt to\u00e1n v\u1ec1 bi\u1ec3u \u0111\u1ed3 li\u00ean k\u1ebft, c\u00e1c trang nh\u1eadn \u0111\u01b0\u1ee3c nhi\u1ec1u phi\u1ebfu b\u1ea7u h\u01a1n \u0111\u01b0\u1ee3c xem l\u00e0 quan tr\u1ecdng h\u01a1n.<\/li><li>C\u00e1c trang quan tr\u1ecdng h\u01a1n th\u00ec phi\u1ebfu b\u1ea7u m\u00e0 h\u1ecd b\u1ecf (cho trang n\u00e0o \u0111\u00f3) c\u0169ng quan tr\u1ecdng h\u01a1n.<\/li><li>C\u00e1c phi\u1ebfu b\u1ea7u m\u1ed9t trang c\u00f3 th\u1ec3 b\u1ecf l\u00e0 m\u1ed9t ch\u1ee9c n\u0103ng v\u1ec1 t\u1ea7m quan tr\u1ecdng c\u1ee7a trang \u0111\u00f3, \u0111\u01b0\u1ee3c chia b\u1edfi s\u1ed1 l\u01b0\u1ee3ng phi\u1ebfu b\u1ea7u\/li\u00ean k\u1ebft m\u00e0 n\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c.<\/li><\/ul>\n\n\n\n<p>Thu\u1eadt to\u00e1n n\u00e0y, nh\u01b0 nhi\u1ec1u ng\u01b0\u1eddi bi\u1ebft, \u0111\u00f3 l\u00e0 PageRank, v\u00e0 n\u00f3 \u0111\u00e3 thay \u0111\u1ed5i qu\u00e1 tr\u00ecnh t\u00ecm ki\u1ebfm tr\u00ean web, cung c\u1ea5p gi\u00e1 tr\u1ecb to l\u1edbn cho nh\u1eefng n\u1ed7 l\u1ef1c ban \u0111\u1ea7u c\u1ee7a Google \u0111\u1ec3 tr\u1ea3 v\u1ec1 c\u00e1c k\u1ebft qu\u1ea3 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 li\u00ean quan. <\/p>\n\n\n\n<p>Khi <a href=\"https:\/\/kiencang.net\/pagerank-la-gi\/\">ki\u1ebfn th\u1ee9c v\u1ec1 PageRank<\/a> tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn, nh\u1eefng ng\u01b0\u1eddi quan t\u00e2m \u0111\u1ebfn \u1ea3nh h\u01b0\u1edfng c\u1ee7a th\u1ee9 h\u1ea1ng t\u00ecm ki\u1ebfm (<a href=\"https:\/\/kiencang.net\/seo-mu-trang-mu-den\/\">ng\u01b0\u1eddi l\u00e0m SEO<\/a>) \u0111\u00e3 t\u00ecm ra c\u00e1c c\u00e1ch khai th\u00e1c th\u00f4ng tin n\u00e0y \u0111\u1ec3 l\u00e0m \u0111\u00f2n b\u1ea9y cho trang web c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<p>Nh\u01b0ng, Google kh\u00f4ng \u0111\u1ee9ng y\u00ean m\u1ed9t ch\u1ed7 ho\u1eb7c th\u1ecfa m\u00e3n v\u1edbi v\u1ea7ng h\u00e0o quang c\u1ee7a h\u1ecd trong l\u00e3nh v\u1ef1c ph\u00e2n t\u00edch li\u00ean k\u1ebft. H\u1ecd \u0111\u1ed5i m\u1edbi, t\u1eadn d\u1ee5ng c\u00e1c t\u00edn hi\u1ec7u nh\u01b0 <a href=\"https:\/\/kiencang.net\/van-ban-neo\/\">v\u0103n b\u1ea3n neo<\/a>, s\u1ef1 tin c\u1eady, \u1ed5 th\u00f4ng tin v\u00e0 th\u1ea9m quy\u1ec1n, m\u00f4 h\u00ecnh ch\u1ee7 \u0111\u1ec1 v\u00e0 th\u1eadm ch\u00ed l\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng m\u00e0 m\u1ed9t li\u00ean k\u1ebft c\u00f3 th\u1ec3 c\u00f3. <\/p>\n\n\n\n<p>Tuy nhi\u00ean, kh\u00f4ng may l\u00e0, nhi\u1ec1u ng\u01b0\u1eddi l\u00e0m trong l\u0129nh v\u1ef1c SEO v\u1eabn kh\u00f4ng nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c nh\u1eefng s\u1ef1 thay \u0111\u1ed5i \u0111\u00f3 v\u00e0 c\u00e1ch ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c ti\u1ebfp th\u1ecb b\u00ean ngo\u00e0i (external marketing) v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u1ec1 vi\u1ec7c thu th\u1eadp li\u00ean k\u1ebft.<\/p>\n\n\n\n<p>Trong b\u00e0i vi\u1ebft n\u00e0y, t\u00f4i d\u1ea1o qua 10 nguy\u00ean t\u1eafc v\u1ec1 vi\u1ec7c \u0111\u00e1nh gi\u00e1 li\u00ean k\u1ebft c\u00f3 th\u1ec3 quan s\u00e1t \u0111\u01b0\u1ee3c, ki\u1ec3m tra \u0111\u01b0\u1ee3c, v\u00e0 trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5p b\u1eb1ng s\u00e1ng ch\u1ebf. T\u00f4i mu\u1ed1n g\u1eedi l\u1eddi c\u1ea3m \u01a1n \u0111\u1eb7c bi\u1ec7t \u0111\u1ebfn Bill Slawski t\u1eeb<a href=\"http:\/\/www.seobythesea.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"> SEO By the Sea<\/a>, ng\u01b0\u1eddi c\u00f3 b\u00e0i \u0111\u0103ng g\u1ea7n \u0111\u00e2y v\u1ec1 <a href=\"http:\/\/www.seobythesea.com\/2010\/05\/googles-reasonable-surfer-how-the-value-of-a-link-may-differ-based-upon-link-and-document-features-and-user-data\/\" target=\"_blank\" rel=\"noreferrer noopener\">M\u00f4 h\u00ecnh L\u01b0\u1edbt H\u1ee3p L\u00fd c\u1ee7a Google<\/a> v\u00e0 <a href=\"http:\/\/www.seobythesea.com\/2010\/05\/what-makes-a-good-seed-site-for-search-engine-web-crawls\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0110i\u1ec1u g\u00ec t\u1ea1o ra m\u1ed9t trang h\u1ea1t gi\u1ed1ng t\u1ed1t cho m\u00e1y t\u00ecm ki\u1ebfm qu\u00e9t?<\/a>\u00a0l\u00e0 ch\u1ea5t x\u00fac t\u00e1c v\u00e0 ngu\u1ed3n d\u1eabn cho b\u00e0i \u0111\u0103ng n\u00e0y.<\/p>\n\n\n\n<p>Khi b\u1ea1n \u0111\u1ecdc xong 10 v\u1ea5n \u0111\u1ec1 d\u01b0\u1edbi \u0111\u00e2y, h\u00e3y l\u01b0u \u00fd r\u1eb1ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1c quy t\u1eafc c\u1ee9ng nh\u1eafc. V\u1edbi quan \u0111i\u1ec3m c\u1ee7a ch\u00fang t\u00f4i, c\u00e1c quy t\u1eafc n\u00e0y d\u1ef1a tr\u00ean kinh nghi\u1ec7m, ki\u1ec3m tra v\u00e0 quan s\u00e1t, nh\u01b0ng gi\u1ed1ng nh\u01b0 m\u1ecdi th\u1ee9 kh\u00e1c trong SEO, \u0111\u00e2y ch\u1ec9 l\u00e0 \u00fd ki\u1ebfn. Ch\u00fang t\u00f4i ch\u00e0o \u0111\u00f3n v\u00e0 \u0111\u1eb7c bi\u1ec7t khuy\u1ebfn kh\u00edch ng\u01b0\u1eddi \u0111\u1ecdc t\u1ef1 ki\u1ec3m tra ch\u00fang. Kh\u00f4ng c\u00f3 \u0111i\u1ec1u g\u00ec t\u1ed1t h\u01a1n cho vi\u1ec7c h\u1ecdc SEO b\u1eb1ng vi\u1ec7c tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6577d71fbb815\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6577d71fbb815\"  type=\"checkbox\" id=\"item-6577d71fbb815\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#1_%E2%80%93_Cac_lien_ket_o_vi_tri_cao_hon_trong_ma_HTML_nhan_duoc_phieu_bau_co_gia_tri_hon\" title=\"#1 &#8211; C\u00e1c li\u00ean k\u1ebft \u1edf v\u1ecb tr\u00ed cao h\u01a1n trong m\u00e3 HTML nh\u1eadn \u0111\u01b0\u1ee3c phi\u1ebfu b\u1ea7u c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n\">#1 &#8211; C\u00e1c li\u00ean k\u1ebft \u1edf v\u1ecb tr\u00ed cao h\u01a1n trong m\u00e3 HTML nh\u1eadn \u0111\u01b0\u1ee3c phi\u1ebfu b\u1ea7u c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#2_%E2%80%93_Cac_lien_ket_ngoai_co_anh_huong_lon_hon_so_voi_cac_lien_ket_noi_bo\" title=\"#2 &#8211; C\u00e1c li\u00ean k\u1ebft ngo\u00e0i c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft n\u1ed9i b\u1ed9\">#2 &#8211; C\u00e1c li\u00ean k\u1ebft ngo\u00e0i c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft n\u1ed9i b\u1ed9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#3_%E2%80%93_Cac_lien_ket_den_tu_ten_mien_moi_quan_trong_hon_cac_lien_ket_den_tu_ten_mien_da_tung_lien_ket_truoc_day\" title=\"#3 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n m\u1edbi quan tr\u1ecdng h\u01a1n c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n \u0111\u00e3 t\u1eebng li\u00ean k\u1ebft tr\u01b0\u1edbc \u0111\u00e2y\">#3 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n m\u1edbi quan tr\u1ecdng h\u01a1n c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n \u0111\u00e3 t\u1eebng li\u00ean k\u1ebft tr\u01b0\u1edbc \u0111\u00e2y<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#4_%E2%80%93_Nhung_lien_ket_den_tu_cac_ten_mien_%E2%80%93_ma_cac_ten_mien_nay_gan_voi_nhom_hat_giong_tin_cay_hon_thi_chuyen_gia_tri_cao_hon\" title=\"#4 &#8211; Nh\u1eefng li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb c\u00e1c t\u00ean mi\u1ec1n &#8211; m\u00e0 c\u00e1c t\u00ean mi\u1ec1n n\u00e0y g\u1ea7n v\u1edbi nh\u00f3m h\u1ea1t gi\u1ed1ng tin c\u1eady h\u01a1n th\u00ec chuy\u1ec3n gi\u00e1 tr\u1ecb cao h\u01a1n\">#4 &#8211; Nh\u1eefng li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb c\u00e1c t\u00ean mi\u1ec1n &#8211; m\u00e0 c\u00e1c t\u00ean mi\u1ec1n n\u00e0y g\u1ea7n v\u1edbi nh\u00f3m h\u1ea1t gi\u1ed1ng tin c\u1eady h\u01a1n th\u00ec chuy\u1ec3n gi\u00e1 tr\u1ecb cao h\u01a1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#5_%E2%80%93_Cac_lien_ket_den_tu_%E2%80%9Cben_trong%E2%80%9D_trang_noi_dung_duy_nhat_dem_lai_nhieu_gia_tri_hon_so_voi_cac_lien_ket_den_tu_chan_trangcot_phaicot_traithanh_dieu_huong\" title=\"#5 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb &#8220;b\u00ean trong&#8221; trang n\u1ed9i dung duy nh\u1ea5t \u0111em l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb ch\u00e2n trang\/c\u1ed9t ph\u1ea3i\/c\u1ed9t tr\u00e1i\/thanh \u0111i\u1ec1u h\u01b0\u1edbng\">#5 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb &#8220;b\u00ean trong&#8221; trang n\u1ed9i dung duy nh\u1ea5t \u0111em l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb ch\u00e2n trang\/c\u1ed9t ph\u1ea3i\/c\u1ed9t tr\u00e1i\/thanh \u0111i\u1ec1u h\u01b0\u1edbng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#6_%E2%80%93_Cac_tu_khoa_trong_van_ban_HTML_dem_lai_gia_tri_nhieu_hon_so_voi_trong_thuoc_tinh_Alt_cua_lien_ket_hinh_anh\" title=\"#6 &#8211; C\u00e1c t\u1eeb kh\u00f3a trong v\u0103n b\u1ea3n HTML \u0111em l\u1ea1i gi\u00e1 tr\u1ecb nhi\u1ec1u h\u01a1n so v\u1edbi trong thu\u1ed9c t\u00ednh Alt c\u1ee7a li\u00ean k\u1ebft h\u00ecnh \u1ea3nh\">#6 &#8211; C\u00e1c t\u1eeb kh\u00f3a trong v\u0103n b\u1ea3n HTML \u0111em l\u1ea1i gi\u00e1 tr\u1ecb nhi\u1ec1u h\u01a1n so v\u1edbi trong thu\u1ed9c t\u00ednh Alt c\u1ee7a li\u00ean k\u1ebft h\u00ecnh \u1ea3nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#7_%E2%80%93_Cac_lien_ket_den_tu_ten_mien_quan_trong_hon_pho_bien_hon_tin_cay_hon_dem_lai_nhieu_gia_tri_hon_tham_chi_khi_no_den_tu_cac_trang_cu_the_it_quan_trong_trong_trang_web_do\" title=\"#7 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n quan tr\u1ecdng h\u01a1n, ph\u1ed5 bi\u1ebfn h\u01a1n, tin c\u1eady h\u01a1n \u0111em l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n (th\u1eadm ch\u00ed khi n\u00f3 \u0111\u1ebfn t\u1eeb c\u00e1c trang c\u1ee5 th\u1ec3 \u00edt quan tr\u1ecdng trong trang web \u0111\u00f3)\">#7 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n quan tr\u1ecdng h\u01a1n, ph\u1ed5 bi\u1ebfn h\u01a1n, tin c\u1eady h\u01a1n \u0111em l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n (th\u1eadm ch\u00ed khi n\u00f3 \u0111\u1ebfn t\u1eeb c\u00e1c trang c\u1ee5 th\u1ec3 \u00edt quan tr\u1ecdng trong trang web \u0111\u00f3)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#8_%E2%80%93_Cac_lien_ket_ben_trong_the_noscript_chuyen_gia_tri_thap_hon_va_co_the_la_khong_co_gia_tri_nao\" title=\"#8 &#8211; C\u00e1c li\u00ean k\u1ebft b\u00ean trong th\u1ebb noscript chuy\u1ec3n gi\u00e1 tr\u1ecb th\u1ea5p h\u01a1n (v\u00e0 c\u00f3 th\u1ec3 l\u00e0 kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb n\u00e0o)\">#8 &#8211; C\u00e1c li\u00ean k\u1ebft b\u00ean trong th\u1ebb noscript chuy\u1ec3n gi\u00e1 tr\u1ecb th\u1ea5p h\u01a1n (v\u00e0 c\u00f3 th\u1ec3 l\u00e0 kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb n\u00e0o)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#9_%E2%80%93_Cac_lien_ket_moi_gia_tang_bung_no_co_the_lam_cho_mot_trang_danh_bai_doi_thu_%E2%80%9Cmanh_hon%E2%80%9D_trong_tam_thoi_hoac_mai_mai\" title=\"#9 &#8211; C\u00e1c li\u00ean k\u1ebft m\u1edbi gia t\u0103ng b\u00f9ng n\u1ed5 c\u00f3 th\u1ec3 l\u00e0m cho m\u1ed9t trang \u0111\u00e1nh b\u1ea1i \u0111\u1ed1i th\u1ee7 &#8220;m\u1ea1nh h\u01a1n&#8221; trong t\u1ea1m th\u1eddi (ho\u1eb7c m\u00e3i m\u00e3i)\">#9 &#8211; C\u00e1c li\u00ean k\u1ebft m\u1edbi gia t\u0103ng b\u00f9ng n\u1ed5 c\u00f3 th\u1ec3 l\u00e0m cho m\u1ed9t trang \u0111\u00e1nh b\u1ea1i \u0111\u1ed1i th\u1ee7 &#8220;m\u1ea1nh h\u01a1n&#8221; trong t\u1ea1m th\u1eddi (ho\u1eb7c m\u00e3i m\u00e3i)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/#10_%E2%80%93_Cac_trang_ma_lien_ket_den_trang_webspam_co_the_lam_giam_gia_tri_cac_lien_ket_khac_ma_chung_tro_den\" title=\"#10 &#8211; C\u00e1c trang m\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn trang webspam c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb c\u00e1c li\u00ean k\u1ebft kh\u00e1c m\u00e0 ch\u00fang tr\u1ecf \u0111\u1ebfn\">#10 &#8211; C\u00e1c trang m\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn trang webspam c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb c\u00e1c li\u00ean k\u1ebft kh\u00e1c m\u00e0 ch\u00fang tr\u1ecf \u0111\u1ebfn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"1-cac-lien-k\u1ebft-\u1edf-v\u1ecb-tri-cao-h\u01a1n-trong-ma-html-nh\u1eadn-d\u01b0\u1ee3c-phi\u1ebfu-b\u1ea7u-co-gia-tr\u1ecb-h\u01a1n\"><span class=\"ez-toc-section\" id=\"1_%E2%80%93_Cac_lien_ket_o_vi_tri_cao_hon_trong_ma_HTML_nhan_duoc_phieu_bau_co_gia_tri_hon\"><\/span>#1 &#8211; C\u00e1c li\u00ean k\u1ebft \u1edf v\u1ecb tr\u00ed cao h\u01a1n trong m\u00e3 HTML nh\u1eadn \u0111\u01b0\u1ee3c phi\u1ebfu b\u1ea7u c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-1a.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"611\" height=\"380\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-1a.gif\" alt=\"li\u00ean k\u1ebft \u1edf v\u1ecb tr\u00ed cao h\u01a1n\" class=\"wp-image-6203\"\/><\/a><\/figure><\/div>\n\n\n\n<p>B\u1ea5t c\u1ee9 khi n\u00e0o ch\u00fang t\u00f4i (ho\u1eb7c nhi\u1ec1u ng\u01b0\u1eddi l\u00e0m SEO kh\u00e1c ch\u00fang t\u00f4i tr\u00f2 chuy\u1ec7n) th\u1ef1c hi\u1ec7n c\u00e1c ki\u1ec3m tra c\u00e1c t\u00ednh n\u0103ng c\u1ee7a trang ho\u1eb7c li\u00ean k\u1ebft trong m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t tr\u00ean web, ch\u00fang t\u00f4i\/h\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng c\u00e1c li\u00ean k\u1ebft \u1edf v\u1ecb tr\u00ed cao h\u01a1n trong code HTML c\u1ee7a trang d\u01b0\u1eddng nh\u01b0 chuy\u1ec3n nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft \u1edf d\u01b0\u1edbi th\u1ea5p. <\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y ch\u1eafc ch\u1eafn ph\u00f9 h\u1ee3p v\u1edbi b\u1eb1ng s\u00e1ng ch\u1ebf m\u1edbi \u0111\u01b0\u1ee3c c\u1ea5p g\u1ea7n \u0111\u00e2y c\u1ee7a Google &#8211; <a href=\"http:\/\/patft.uspto.gov\/netacgi\/nph-Parser?Sect1=PTO2&amp;Sect2=HITOFF&amp;u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&amp;r=1&amp;p=1&amp;f=G&amp;l=50&amp;d=PTXT&amp;S1=7,716,225.PN.&amp;OS=pn\/7,716,225&amp;RS=PN\/7,716,225\" target=\"_blank\" rel=\"noreferrer noopener\">X\u1ebfp h\u1ea1ng t\u00e0i li\u1ec7u d\u1ef1a tr\u00ean h\u00e0nh vi c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0\/ho\u1eb7c t\u00ednh n\u0103ng c\u1ee7a d\u1eef li\u1ec7u<\/a>, n\u00f3 g\u1ee3i \u00fd m\u1ed9t s\u1ed1 th\u1ee9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t theo c\u00e1ch th\u1ee9c m\u00e0 c\u00e1c \u0111o l\u01b0\u1eddng v\u1ec1 li\u00ean k\u1ebft \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-1b.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"609\" height=\"503\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-1b.gif\" alt=\"li\u00ean k\u1ebft \u1edf v\u1ecb tr\u00ed cao h\u01a1n trong v\u0103n b\u1ea3n HTML\" class=\"wp-image-6209\"\/><\/a><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-cac-lien-k\u1ebft-ngoai-co-\u1ea3nh-h\u01b0\u1edfng-l\u1edbn-h\u01a1n-so-v\u1edbi-cac-lien-k\u1ebft-n\u1ed9i-b\u1ed9\"><span class=\"ez-toc-section\" id=\"2_%E2%80%93_Cac_lien_ket_ngoai_co_anh_huong_lon_hon_so_voi_cac_lien_ket_noi_bo\"><\/span>#2 &#8211; C\u00e1c li\u00ean k\u1ebft ngo\u00e0i c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft n\u1ed9i b\u1ed9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-2.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"469\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-2.gif\" alt=\"li\u00ean k\u1ebft ngo\u00e0i quan tr\u1ecdng h\u01a1n li\u00ean k\u1ebft n\u1ed9i b\u1ed9\" class=\"wp-image-6210\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Kh\u00f4ng c\u00f3 nhi\u1ec1u b\u1ea5t ng\u1edd \u1edf \u0111\u00e2y, nh\u01b0ng n\u1ebfu b\u1ea1n nh\u1edb l\u1ea1i, \u00fd t\u01b0\u1edfng ban \u0111\u1ea7u c\u1ee7a PageRank kh\u00f4ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <a href=\"https:\/\/kiencang.net\/lien-ket-noi-bo\/\">li\u00ean k\u1ebft n\u1ed9i b\u1ed9<\/a> v\u00e0 li\u00ean k\u1ebft ngo\u00e0i. C\u00f3 kh\u1ea3 n\u0103ng l\u00e0 c\u00e1c s\u1ed1 li\u1ec7u \u0111o \u0111\u1ea1c \u0111\u01b0\u1ee3c t\u1ea1o ra (sau n\u0103m 1997) \u0111\u00e3 th\u01b0\u1edfng cho c\u00e1c c\u00e1c li\u00ean k\u1ebft ngo\u00e0i v\u01b0\u1ee3t l\u00ean tr\u00ean c\u00e1c li\u00ean k\u1ebft n\u1ed9i b\u1ed9. B\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y \u0111i\u1ec1u n\u00e0y trong d\u1eef li\u1ec7u t\u01b0\u01a1ng quan m\u00e0 ch\u00fang t\u00f4i \u0111\u00e3 th\u1eed nghi\u1ec7m v\u00e0i tu\u1ea7n tr\u01b0\u1edbc, cho th\u1ea5y c\u00e1c li\u00ean k\u1ebft ngo\u00e0i mozRank (&#8220;PageRank&#8221; g\u1eedi cho c\u00e1c trang b\u00ean ngo\u00e0i) c\u00f3 m\u1ed1i t\u01b0\u01a1ng quan cao h\u01a1n v\u1edbi th\u1ee9 h\u1ea1ng so v\u1edbi mozRank ti\u00eau chu\u1ea9n (PageRank):<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/pagerank-like-metrics.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"327\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/pagerank-like-metrics.gif\" alt=\"t\u01b0\u01a1ng quan th\u1ee9 h\u1ea1ng gi\u1eefa li\u00ean k\u1ebft ngo\u00e0i v\u00e0 li\u00ean k\u1ebft n\u1ed9i b\u1ed9\" class=\"wp-image-6212\"\/><\/a><\/figure><\/div>\n\n\n\n<p>T\u00f4i kh\u00f4ng ngh\u0129 l\u00e0 Google c\u0103ng \u0111\u1ebfn m\u1ee9c ph\u1ea3i t\u00ednh to\u00e1n\/ph\u00e2n t\u00edch PageRank li\u00ean k\u1ebft ngo\u00e0i v\u00e0 PageRank li\u00ean k\u1ebft n\u1ed9i b\u1ed9 ri\u00eang bi\u1ec7t ho\u1eb7c c\u00f3 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng ch\u00fang theo c\u00e1c c\u00e1ch kh\u00e1c nhau \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 th\u1ee9 h\u1ea1ng c\u1ee7a trang.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-cac-lien-k\u1ebft-d\u1ebfn-t\u1eeb-ten-mi\u1ec1n-m\u1edbi-quan-tr\u1ecdng-h\u01a1n-cac-lien-k\u1ebft-d\u1ebfn-t\u1eeb-ten-mi\u1ec1n-da-t\u1eebng-lien-k\u1ebft-tr\u01b0\u1edbc-day\"><span class=\"ez-toc-section\" id=\"3_%E2%80%93_Cac_lien_ket_den_tu_ten_mien_moi_quan_trong_hon_cac_lien_ket_den_tu_ten_mien_da_tung_lien_ket_truoc_day\"><\/span>#3 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n m\u1edbi quan tr\u1ecdng h\u01a1n c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n \u0111\u00e3 t\u1eebng li\u00ean k\u1ebft tr\u01b0\u1edbc \u0111\u00e2y<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-3.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"604\" height=\"664\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-3.gif\" alt=\"s\u1ef1 \u0111a d\u1ea1ng t\u00ean mi\u1ec1n quan tr\u1ecdng h\u01a1n\" class=\"wp-image-6214\"\/><\/a><\/figure><\/div>\n\n\n\n<p>D\u1ef1a tr\u00ean d\u1eef li\u1ec7u t\u01b0\u01a1ng quan, kh\u00f4ng m\u1ed9t s\u1ed1 li\u1ec7u \u0111\u01a1n l\u1ebb v\u00e0 \u0111\u01a1n gi\u1ea3n n\u00e0o c\u00f3 t\u01b0\u01a1ng quan v\u1edbi th\u1ee9 h\u1ea1ng tr\u00ean Google (c\u1ee7a m\u1ed9t trang n\u00e0o \u0111\u00f3) t\u1ed1t b\u1eb1ng s\u1ed1 l\u01b0\u1ee3ng c\u00e1c t\u00ean mi\u1ec1n c\u1ee5 th\u1ec3 c\u00f3 li\u00ean k\u1ebft ngo\u00e0i tr\u1ecf v\u1ec1 trang \u0111\u1ea5y. M\u1ed1i t\u01b0\u01a1ng quan m\u1ea1nh m\u1ebd n\u00e0y cho th\u1ea5y t\u00ednh \u0111a d\u1ea1ng \u0111\u00f3ng vai tr\u00f2 trong h\u1ec7 th\u1ed1ng x\u1ebfp h\u1ea1ng v\u00e0 s\u1ebd t\u1ed1t h\u01a1n n\u1ebfu b\u1ea1n c\u00f3 50 li\u00ean k\u1ebft t\u1eeb 50 t\u00ean mi\u1ec1n kh\u00e1c nhau so v\u1edbi vi\u1ec7c c\u00f3 h\u01a1n 500 li\u00ean k\u1ebft t\u1eeb trang web \u0111\u00e3 t\u1eebng li\u00ean k\u1ebft v\u1edbi b\u1ea1n tr\u01b0\u1edbc \u0111\u00e2y. N\u1ebfu b\u1ea1n t\u00f2 m\u00f2 th\u00eam, th\u00ec thu\u1eadt to\u00e1n PageRank nguy\u00ean g\u1ed1c kh\u00f4ng cung c\u1ea5p \u0111i\u1ec1u n\u00e0y, c\u00e1i n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t l\u00fd do gi\u1ea3i th\u00edch s\u1ed1 l\u01b0\u1ee3ng li\u00ean k\u1ebft r\u1ed9ng t\u1eeb c\u00e1c t\u00ean mi\u1ec1n c\u00f3 PageRank cao \u0111\u00e3 l\u00e0m vi\u1ec7c r\u1ea5t t\u1ed1t trong nh\u1eefng n\u0103m \u0111\u1ea7u Google ra m\u1eaft.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-nh\u1eefng-lien-k\u1ebft-d\u1ebfn-t\u1eeb-cac-ten-mi\u1ec1n-ma-cac-ten-mi\u1ec1n-nay-g\u1ea7n-v\u1edbi-nhom-h\u1ea1t-gi\u1ed1ng-tin-c\u1eady-h\u01a1n-thi-chuy\u1ec3n-gia-tr\u1ecb-cao-h\u01a1n\"><span class=\"ez-toc-section\" id=\"4_%E2%80%93_Nhung_lien_ket_den_tu_cac_ten_mien_%E2%80%93_ma_cac_ten_mien_nay_gan_voi_nhom_hat_giong_tin_cay_hon_thi_chuyen_gia_tri_cao_hon\"><\/span>#4 &#8211; Nh\u1eefng li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb c\u00e1c t\u00ean mi\u1ec1n &#8211; m\u00e0 c\u00e1c t\u00ean mi\u1ec1n n\u00e0y g\u1ea7n v\u1edbi nh\u00f3m h\u1ea1t gi\u1ed1ng tin c\u1eady h\u01a1n th\u00ec chuy\u1ec3n gi\u00e1 tr\u1ecb cao h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-4.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"234\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-4.gif\" alt=\"c\u00e1c t\u00ean mi\u1ec1n g\u1ea7n v\u1edbi nh\u00f3m h\u1ea1t gi\u1ed1ng tin c\u1eady h\u01a1n\" class=\"wp-image-6231\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Ch\u00fang t\u00f4i t\u1eebng c\u00f3 <a href=\"https:\/\/moz.com\/blog\/whiteboard-friday-domain-trust-authority\" target=\"_blank\" rel=\"noreferrer noopener\">bu\u1ed5i n\u00f3i chuy\u1ec7n tr\u01b0\u1edbc \u0111\u00e2y v\u1ec1 TrustRank tr\u00ean SEOmoz<\/a> v\u00e0 th\u01b0\u1eddng d\u1eabn v\u1ec1 nghi\u00ean c\u1ee9u n\u00e0y c\u1ee7a Yahoo &#8211;<a href=\"http:\/\/www.vldb.org\/conf\/2004\/RS15P3.PDF\" target=\"_blank\" rel=\"noreferrer noopener\"> Ch\u1ed1ng l\u1ea1i Webspam v\u1edbi TrustRank<\/a>. D\u00f9 v\u1eady, Google ch\u1eafc ch\u1eafn c\u0169ng \u0111\u00e3 l\u00e0m r\u1ea5t nhi\u1ec1u tr\u00ean m\u1eb7t tr\u1eadn n\u00e0y (nh\u01b0 <a href=\"http:\/\/www.seobythesea.com\/2009\/10\/google-trust-rank-patent-granted\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bill \u0111\u1ec1 c\u1eadp \u1edf \u0111\u00e2y<\/a>) v\u00e0 <a href=\"http:\/\/appft.uspto.gov\/netacgi\/nph-Parser?Sect1=PTO2&amp;Sect2=HITOFF&amp;u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&amp;r=1&amp;p=1&amp;f=G&amp;l=50&amp;d=PG01&amp;S1=20100114858.PGNR.&amp;OS=dn\/20100114858&amp;RS=DN\/20100114858\" target=\"_blank\" rel=\"noreferrer noopener\">\u0111\u01a1n xin c\u1ea5p b\u1eb1ng s\u00e1ng ch\u1ebf n\u00e0y v\u1ec1 vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00e1c trang h\u1ea1t gi\u1ed1ng (seed sites) \u0111\u00e1ng tin c\u1eady<\/a>&nbsp;n\u00f3i l\u00ean r\u1eb1ng c\u00f3 m\u1ed9t nhu c\u1ea7u \u0111ang t\u0103ng l\u00ean v\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p lu\u1eadn n\u00e0y. Ch\u1ee9c n\u0103ng \u0111i\u1ec3m s\u1ed1 mozTrust c\u1ee7a Linkscape l\u00e0m vi\u1ec7c ch\u00ednh x\u00e1c theo c\u00e1ch n\u00e0y, s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n t\u01b0\u01a1ng t\u1ef1 PageRank, theo \u0111\u00f3 c\u00f3 s\u1ef1 thi\u00ean v\u1ecb v\u1edbi c\u00e1c li\u00ean k\u1ebft t\u1eeb c\u00e1c trang h\u1ea1t gi\u1ed1ng tin c\u1eady ch\u1ee9 kh\u00f4ng b\u00ecnh \u0111\u1eb3ng v\u1edbi nhau tr\u00ean to\u00e0n b\u1ed9 trang web.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-cac-lien-k\u1ebft-d\u1ebfn-t\u1eeb-ben-trong-trang-n\u1ed9i-dung-duy-nh\u1ea5t-dem-l\u1ea1i-nhi\u1ec1u-gia-tr\u1ecb-h\u01a1n-so-v\u1edbi-cac-lien-k\u1ebft-d\u1ebfn-t\u1eeb-chan-trang-c\u1ed9t-ph\u1ea3i-c\u1ed9t-trai-thanh-di\u1ec1u-h\u01b0\u1edbng\"><span class=\"ez-toc-section\" id=\"5_%E2%80%93_Cac_lien_ket_den_tu_%E2%80%9Cben_trong%E2%80%9D_trang_noi_dung_duy_nhat_dem_lai_nhieu_gia_tri_hon_so_voi_cac_lien_ket_den_tu_chan_trangcot_phaicot_traithanh_dieu_huong\"><\/span>#5 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb &#8220;b\u00ean trong&#8221; trang n\u1ed9i dung duy nh\u1ea5t \u0111em l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb ch\u00e2n trang\/c\u1ed9t ph\u1ea3i\/c\u1ed9t tr\u00e1i\/thanh \u0111i\u1ec1u h\u01b0\u1edbng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-5.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"608\" height=\"641\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-5.gif\" alt=\"c\u00e1c li\u00ean k\u1ebft b\u00ean trong n\u1ed9i dung quan tr\u1ecdng h\u01a1n c\u00e1c li\u00ean k\u1ebft t\u1eeb khu v\u1ef1c kh\u00e1c\" class=\"wp-image-6216\"\/><\/a><\/figure><\/div>\n\n\n\n<p>C\u00e1c t\u00e0i li\u1ec7u nh\u01b0 <a href=\"http:\/\/research.microsoft.com\/apps\/pubs\/default.aspx?id=70027\" target=\"_blank\" rel=\"noreferrer noopener\">Microsoft VIPS<\/a> (Vision Based Page Segmentation &#8211; T\u1ea7m nh\u00ecn d\u1ef1a tr\u00ean ph\u00e2n trang), <a href=\"http:\/\/patft.uspto.gov\/netacgi\/nph-Parser?Sect1=PTO2&amp;Sect2=HITOFF&amp;u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&amp;r=1&amp;p=1&amp;f=G&amp;l=50&amp;d=PTXT&amp;S1=7,716,216.PN.&amp;OS=pn\/7,716,216&amp;RS=PN\/7,716,216\" target=\"_blank\" rel=\"noreferrer noopener\">X\u1ebfp h\u1ea1ng t\u00e0i li\u1ec7u d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch ng\u1eef ngh\u0129a c\u1ee7a Google<\/a>, v\u00e0 b\u00e0i vi\u1ebft g\u1ea7n \u0111\u00e2y <a href=\"http:\/\/www.seobythesea.com\/2010\/05\/googles-reasonable-surfer-how-the-value-of-a-link-may-differ-based-upon-link-and-document-features-and-user-data\/\" target=\"_blank\" rel=\"noreferrer noopener\">C\u00f4ng c\u1ee5 l\u01b0\u1edbt h\u1ee3p l\u00fd<\/a>, t\u1ea5t c\u1ea3 \u0111\u1ec1u g\u1ee3i \u00fd r\u1eb1ng vi\u1ec7c \u0111\u00e1nh gi\u00e1 c\u00e1c li\u00ean k\u1ebft t\u1eeb n\u1ed9i dung quan tr\u1ecdng h\u01a1n so v\u1edbi c\u00e1c thanh sidebar (tr\u00e1i ho\u1eb7c ph\u1ea3i) ho\u1eb7c ch\u00e2n trang c\u00f3 t\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c trong vi\u1ec7c tr\u00e1nh spam v\u00e0 thao t\u00fang. L\u00e0 ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb web v\u00e0 l\u00e0m SEO, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 ch\u1ee9ng nh\u1eadn ch\u1eafc ch\u1eafn s\u1ef1 th\u1eadt l\u00e0 r\u1ea5t nhi\u1ec1u li\u00ean k\u1ebft tr\u1ea3 ti\u1ec1n \u1edf trong c\u00e1c khu v\u1ef1c b\u00ean ngo\u00e0i c\u1ee7a n\u1ed9i dung trang v\u00e0 vi\u1ec7c c\u00f3 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft kh\u00f4ng t\u1ef1 nhi\u00ean b\u00ean trong n\u1ed9i dung th\u00ec kh\u00f3 h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"6-cac-t\u1eeb-khoa-trong-van-b\u1ea3n-html-dem-l\u1ea1i-gia-tr\u1ecb-nhi\u1ec1u-h\u01a1n-so-v\u1edbi-trong-thu\u1ed9c-tinh-alt-c\u1ee7a-lien-k\u1ebft-hinh-\u1ea3nh\"><span class=\"ez-toc-section\" id=\"6_%E2%80%93_Cac_tu_khoa_trong_van_ban_HTML_dem_lai_gia_tri_nhieu_hon_so_voi_trong_thuoc_tinh_Alt_cua_lien_ket_hinh_anh\"><\/span>#6 &#8211; C\u00e1c t\u1eeb kh\u00f3a trong v\u0103n b\u1ea3n HTML \u0111em l\u1ea1i gi\u00e1 tr\u1ecb nhi\u1ec1u h\u01a1n so v\u1edbi trong thu\u1ed9c t\u00ednh Alt c\u1ee7a li\u00ean k\u1ebft h\u00ecnh \u1ea3nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-6.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"311\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-6.gif\" alt=\"li\u00ean k\u1ebft v\u0103n b\u1ea3n th\u01b0\u1eddng quan tr\u1ecdng h\u01a1n thu\u1ed9c t\u00ednh ALT\" class=\"wp-image-6219\"\/><\/a><\/figure><\/div>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong b\u1ea5t c\u1ee9 t\u00e0i li\u1ec7u ho\u1eb7c b\u1eb1ng s\u00e1ng ch\u1ebf n\u00e0o (trong hi\u1ec3u bi\u1ebft c\u1ee7a t\u00f4i), nh\u01b0ng ki\u1ec3m tra c\u1ee7a ch\u00fang t\u00f4i cho th\u1ea5y (v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m c\u1ee7a nh\u1eefng ng\u01b0\u1eddi kh\u00e1c c\u0169ng \u1ee7ng h\u1ed9 \u0111i\u1ec1u n\u00e0y) r\u1eb1ng v\u0103n b\u1ea3n neo trong HTML b\u1eb1ng c\u00e1ch n\u00e0o \u0111\u00f3 c\u00f3 gi\u00e1 tr\u1ecb h\u01a1n so v\u1edbi thu\u1ed9c t\u00ednh ALT trong li\u00ean k\u1ebft h\u00ecnh \u1ea3nh. \u0110i\u1ec1u n\u00e0y kh\u00f4ng c\u00f3 \u00fd n\u00f3i r\u1eb1ng ch\u00fang ta kh\u00f4ng n\u00ean th\u1ef1c hi\u1ec7n li\u00ean k\u1ebft v\u1edbi h\u00ecnh \u1ea3nh ho\u1eb7c thu\u1ed9c t\u00ednh ALT n\u1eefa. N\u00f3 ch\u1ec9 c\u00f3 \u00fd n\u00f3i r\u1eb1ng ch\u00fang ta c\u1ea7n nh\u1eadn bi\u1ebft r\u1eb1ng Google d\u01b0\u1eddng nh\u01b0 c\u00f3 s\u1ef1 thi\u00ean v\u1ecb n\u00e0y (c\u00f3 l\u1ebd n\u00f3 ch\u1ec9 l\u00e0 t\u1ea1m th\u1eddi).<\/p>\n\n\n\n<p>P\/S: H\u01a1i li\u00ean quan m\u1ed9t ch\u00fat, nh\u00e2n ti\u1ec7n n\u00f3i \u0111\u1ebfn th\u1ebb ALT, b\u1ea1n n\u00e0o quan t\u00e2m \u0111\u1ebfn <a href=\"https:\/\/kiencang.net\/seo-anh\/\">c\u00e1ch SEO \u1ea3nh th\u00ec \u0111\u1ecdc b\u00e0i n\u00e0y nh\u00e9<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"7-cac-lien-k\u1ebft-d\u1ebfn-t\u1eeb-ten-mi\u1ec1n-quan-tr\u1ecdng-h\u01a1n-ph\u1ed5-bi\u1ebfn-h\u01a1n-tin-c\u1eady-h\u01a1n-dem-l\u1ea1i-nhi\u1ec1u-gia-tr\u1ecb-h\u01a1n-th\u1eadm-chi-khi-no-d\u1ebfn-t\u1eeb-cac-trang-c\u1ee5-th\u1ec3-it-quan-tr\u1ecdng-trong-trang-web-do\"><span class=\"ez-toc-section\" id=\"7_%E2%80%93_Cac_lien_ket_den_tu_ten_mien_quan_trong_hon_pho_bien_hon_tin_cay_hon_dem_lai_nhieu_gia_tri_hon_tham_chi_khi_no_den_tu_cac_trang_cu_the_it_quan_trong_trong_trang_web_do\"><\/span>#7 &#8211; C\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n quan tr\u1ecdng h\u01a1n, ph\u1ed5 bi\u1ebfn h\u01a1n, tin c\u1eady h\u01a1n \u0111em l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n (th\u1eadm ch\u00ed khi n\u00f3 \u0111\u1ebfn t\u1eeb c\u00e1c trang c\u1ee5 th\u1ec3 \u00edt quan tr\u1ecdng trong trang web \u0111\u00f3)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-7.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"605\" height=\"616\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-7.gif\" alt=\"c\u00e1c li\u00ean k\u1ebft \u0111\u1ebfn t\u1eeb t\u00ean mi\u1ec1n gi\u00e1 tr\u1ecb h\u01a1n th\u00ec \u0111em l\u1ea1i l\u1ee3i \u00edch l\u1edbn h\u01a1n\" class=\"wp-image-6227\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Ch\u00fang ta d\u01b0\u1eddng nh\u01b0 \u0111\u1ec1u c\u00f3 kinh nghi\u1ec7m n\u00e0y: c\u1ea3m gi\u00e1c sai sai (sinking feeling) khi th\u1ea5y \u0111\u1ed1i th\u1ee7 c\u1ee7a m\u00ecnh c\u00f3 \u00edt li\u00ean k\u1ebft h\u01a1n c\u0169ng nh\u01b0 trang li\u00ean k\u1ebft t\u1edbi h\u1ecd kh\u00f4ng c\u00f3 v\u1ebb m\u1ea1nh m\u1ebd nh\u01b0ng cu\u1ed1i c\u00f9ng l\u1ea1i x\u1ebfp h\u1ea1ng cao h\u01a1n ch\u00fang ta. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch ph\u1ea7n n\u00e0o b\u1edfi gi\u00e1 tr\u1ecb c\u1ee7a t\u00ean mi\u1ec1n v\u01b0\u1ee3t qua gi\u00e1 tr\u1ecb th\u00f4ng qua m\u1ed9t li\u00ean k\u1ebft, gi\u00e1 tr\u1ecb c\u1ee7a t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh \u0111\u1ea7y \u0111\u1ee7 trong c\u00e1c ch\u1ec9 s\u1ed1 \u1edf c\u1ea5p \u0111\u1ed9 trang ri\u00eang l\u1ebb. N\u00f3 c\u0169ng gi\u00fap c\u00e1c m\u00e1y t\u00ecm ki\u1ebfm ch\u1ed1ng l\u1ea1i spam v\u00e0 nh\u00ecn chung cung c\u1ea5p c\u00e1c k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n\n\n\n<p>Ch\u00fa th\u00edch: T\u00f4i g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c t\u00ecm ki\u1ebfm c\u00e1c t\u00e0i li\u1ec7u\/b\u1eb1ng s\u00e1ng ch\u1ebf ch\u1ee9ng m\u00ecnh cho k\u1ebft lu\u1eadn tr\u00ean; T\u00f4i s\u1ebd c\u1ed1 g\u1eafng xem l\u1ea1i v\u00e0 t\u00ecm ch\u00fang s\u1edbm.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"8-cac-lien-k\u1ebft-ben-trong-th\u1ebb-noscript-chuy\u1ec3n-gia-tr\u1ecb-th\u1ea5p-h\u01a1n-va-co-th\u1ec3-la-khong-co-gia-tr\u1ecb-nao\"><span class=\"ez-toc-section\" id=\"8_%E2%80%93_Cac_lien_ket_ben_trong_the_noscript_chuyen_gia_tri_thap_hon_va_co_the_la_khong_co_gia_tri_nao\"><\/span>#8 &#8211; C\u00e1c li\u00ean k\u1ebft b\u00ean trong th\u1ebb noscript chuy\u1ec3n gi\u00e1 tr\u1ecb th\u1ea5p h\u01a1n (v\u00e0 c\u00f3 th\u1ec3 l\u00e0 kh\u00f4ng c\u00f3 gi\u00e1 tr\u1ecb n\u00e0o)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-8.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"589\" height=\"487\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-8.gif\" alt=\"c\u00e1c li\u00ean k\u1ebft b\u00ean trong th\u1ebb noscript\" class=\"wp-image-6224\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Qua nhi\u1ec1u n\u0103m, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o v\u00e0 g\u00e2y tranh c\u00e3i nhi\u1ec1u l\u1ea7n. Ki\u1ec3m tra c\u1ee7a ch\u00fang t\u00f4i kh\u1eb3ng \u0111\u1ecbnh ch\u1eafc ch\u1eafn l\u00e0 c\u00e1c li\u00ean k\u1ebft trong th\u1ebb &lt;noscript&gt; kh\u00f4ng chuy\u1ec3n gi\u00e1 tr\u1ecb n\u00e0o, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u00fang trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1o sao ch\u00fang t\u00f4i c\u00f3 th\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng l\u1ecdc noscript trong Linkscape, nh\u01b0ng s\u1ed1 l\u01b0\u1ee3ng c\u00e1c li\u00ean k\u1ebft t\u1ed5ng th\u1ec3 tr\u00ean web b\u00ean trong th\u1ebb n\u00e0y l\u00e0 kh\u00e1 nh\u1ecf.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"9-cac-lien-k\u1ebft-m\u1edbi-gia-tang-bung-n\u1ed5-co-th\u1ec3-lam-cho-m\u1ed9t-trang-danh-b\u1ea1i-d\u1ed1i-th\u1ee7-m\u1ea1nh-h\u01a1n-trong-t\u1ea1m-th\u1eddi-ho\u1eb7c-mai-mai\"><span class=\"ez-toc-section\" id=\"9_%E2%80%93_Cac_lien_ket_moi_gia_tang_bung_no_co_the_lam_cho_mot_trang_danh_bai_doi_thu_%E2%80%9Cmanh_hon%E2%80%9D_trong_tam_thoi_hoac_mai_mai\"><\/span>#9 &#8211; C\u00e1c li\u00ean k\u1ebft m\u1edbi gia t\u0103ng b\u00f9ng n\u1ed5 c\u00f3 th\u1ec3 l\u00e0m cho m\u1ed9t trang \u0111\u00e1nh b\u1ea1i \u0111\u1ed1i th\u1ee7 &#8220;m\u1ea1nh h\u01a1n&#8221; trong t\u1ea1m th\u1eddi (ho\u1eb7c m\u00e3i m\u00e3i)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-9.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"604\" height=\"581\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-9.gif\" alt=\"c\u00e1c trang c\u00f3 li\u00ean k\u1ebft gia t\u0103ng \u0111\u1ed9t bi\u1ebfn c\u00f3 th\u1ec3 \u0111\u00e1nh b\u1ea1i \u0111\u1ed1i th\u1ee7 m\u1ea1nh h\u01a1n\" class=\"wp-image-6233\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Ngo\u00e0i c\u00e1c <a href=\"https:\/\/moz.com\/blog\/whiteboard-friday-query-deserves-freshness\" target=\"_blank\" rel=\"noreferrer noopener\">thu\u1eadt to\u00e1n QDF (Query Deserves Freshness) c\u1ee7a Google<\/a>, c\u00e1i c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c n\u1ed9i dung m\u1edbi \u0111\u01b0\u1ee3c t\u1ea1o v\u00e0 li\u00ean k\u1ebft t\u1edbi g\u1ea7n \u0111\u00e2y cao h\u01a1n trong c\u00e1c t\u00ecm ki\u1ebfm &#8220;xu h\u01b0\u1edbng&#8221; nh\u1ea5t \u0111\u1ecbnh, c\u00f3 v\u1ebb nh\u01b0 m\u00e1y t\u00ecm ki\u1ebfm c\u0169ng s\u1eed d\u1ee5ng c\u00e1c t\u00edn hi\u1ec7u li\u00ean k\u1ebft t\u1ea1m th\u1eddi xung quanh \u0111\u1ec3 k\u1ebft h\u1ee3p c\u1ea3 \u0111\u00e1nh gi\u00e1 c\u00e1c trang spam\/thao t\u00fang v\u00e0 khen th\u01b0\u1edfng c\u00e1c trang ki\u1ebfm \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn tr\u00edch d\u1eabn, tham kh\u1ea3o (backlink) trong m\u1ed9t kho\u1ea3ng th\u1eddi gian ng\u1eafn. B\u1eb1ng s\u00e1ng ch\u1ebf c\u1ee7a Google v\u1ec1 <a href=\"http:\/\/appft1.uspto.gov\/netacgi\/nph-Parser?Sect1=PTO1&amp;Sect2=HITOFF&amp;d=PG01&amp;p=1&amp;u=%2Fnetahtml%2FPTO%2Fsrchnum.html&amp;r=1&amp;f=G&amp;l=50&amp;s1=%2220050071741%22.PGNR.&amp;OS=DN\/20050071741&amp;RS=DN\/20050071741\" target=\"_blank\" rel=\"noreferrer noopener\">truy xu\u1ea5t th\u00f4ng tin d\u1ef1a tr\u00ean d\u1eef li\u1ec7u l\u1ecbch s\u1eed<\/a> l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 xu\u1ea5t vi\u1ec7c s\u1eed d\u1ee5ng d\u1eef li\u1ec7u t\u1ea1m th\u1eddi, nh\u01b0ng m\u00f4 h\u00ecnh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t s\u1eeda \u0111\u1ed5i v\u00e0 tinh ch\u1ec9nh t\u1eeb th\u1eddi \u0111i\u1ec3m \u0111\u00f3.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"10-cac-trang-ma-lien-k\u1ebft-d\u1ebfn-trang-webspam-co-th\u1ec3-lam-gi\u1ea3m-gia-tr\u1ecb-cac-lien-k\u1ebft-khac-ma-chung-tr\u1ecf-d\u1ebfn\"><span class=\"ez-toc-section\" id=\"10_%E2%80%93_Cac_trang_ma_lien_ket_den_trang_webspam_co_the_lam_giam_gia_tri_cac_lien_ket_khac_ma_chung_tro_den\"><\/span>#10 &#8211; C\u00e1c trang m\u00e0 li\u00ean k\u1ebft \u0111\u1ebfn trang webspam c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb c\u00e1c li\u00ean k\u1ebft kh\u00e1c m\u00e0 ch\u00fang tr\u1ecf \u0111\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-10a.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"609\" height=\"551\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2017\/11\/linkval-10a.gif\" alt=\"c\u00e1c li\u00ean k\u1ebft spam l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb chuy\u1ec3n cho li\u00ean k\u1ebft kh\u00e1c\" class=\"wp-image-6226\"\/><\/a><\/figure><\/div>\n\n\n\n<p>Nh\u1eefng ng\u01b0\u1eddi c\u00f3 nhi\u1ec7m v\u1ee5 qu\u1ea3n tr\u1ecb web \u0111\u00e3 kh\u00f4n ngoan c\u1eadp nh\u1eadt vi\u1ec7c lo\u1ea1i b\u1ecf spam \u0111\u1ec3 tr\u00e1nh g\u00e2y ra kh\u1ea3 n\u0103ng b\u1ecb ph\u1ea1t x\u1ebfp h\u1ea1ng t\u1eeb Google (v\u00e0 c\u00f3 th\u1ec3 m\u1ea5t gi\u00e1 tr\u1ecb li\u00ean k\u1ebft).<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>Nh\u01b0ng v\u1ec1 ch\u1ec9 s\u1ed5 &#8220;PageRank&#8221; c\u1ed5 \u0111i\u1ec3n th\u00ec sao &#8211; con s\u1ed1 m\u00e0 ch\u00fang ta ch\u1ec9 c\u00f3 hi\u1ec3u bi\u1ebft nh\u1ecf l\u1ea5y t\u1eeb c\u00e1c pixel m\u00e0u xanh c\u1ee7a thanh Google toolbar? T\u00f4i th\u1ef1c s\u1ef1 \u0111o\u00e1n r\u1eb1ng trong khi nhi\u1ec1u (c\u00f3 th\u1ec3 l\u00e0 t\u1ea5t c\u1ea3) c\u00e1c t\u00ednh n\u0103ng v\u1ec1 li\u00ean k\u1ebft th\u1ea3o lu\u1eadn b\u00ean tr\u00ean t\u1ea1o ra c\u00e1ch th\u1ee9c c\u1ee7a ri\u00eang ch\u00fang trong qu\u00e1 tr\u00ecnh x\u1ebfp h\u1ea1ng, PR v\u1eabn kh\u00f4ng thay \u0111\u1ed5i qu\u00e1 nhi\u1ec1u t\u1eeb \u00fd t\u01b0\u1edfng nguy\u00ean g\u1ed1c c\u1ee7a n\u00f3. Ch\u1ec9 l\u00e0 l\u00fd lu\u1eadn c\u1ee7a ri\u00eang t\u00f4i th\u00f4i ph\u1ea3i kh\u00f4ng? Kh\u00f4ng \u0111\u00e2u, SEOmoz c\u00f3 ch\u1ec9 s\u1ed1 mozRank c\u1ee7a ri\u00eang m\u00ecnh, c\u00e1i c\u00f3 t\u01b0\u01a1ng quan \u0111\u00e1ng k\u1ec3 v\u1edbi ch\u1ec9 s\u1ed1 PR v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n r\u1ea5t gi\u1ed1ng v\u1edbi \u00fd t\u01b0\u1edfng ban \u0111\u1ea7u v\u1ec1 PageRank. <\/p>\n\n\n\n<p>N\u1ebfu t\u00f4i ph\u1ea3i \u0111o\u00e1n (v\u00e0 t\u00f4i th\u1ef1c s\u1ef1 \u0111ang \u0111o\u00e1n), t\u00f4i s\u1ebd n\u00f3i r\u1eb1ng Google v\u1eabn duy tr\u00ec PR c\u1ed5 \u0111i\u1ec3n b\u1edfi v\u00ec h\u1ecd th\u1ea5y n\u00f3 l\u00e0 m\u1ed9t kh\u00e1m ph\u00e1 h\u1eefu d\u1ee5ng \u0111\u01a1n gi\u1ea3n cho m\u1ed9t s\u1ed1 nhi\u1ec7m v\u1ee5 (c\u00f3 kh\u1ea3 n\u0103ng bao g\u1ed3m c\u1ea3 vi\u1ec7c \u01b0u ti\u00ean thu th\u1eadp d\u1eef li\u1ec7u\/l\u1eadp ch\u1ec9 m\u1ee5c), v\u00e0 \u0111\u00e3 \u00e1p d\u1ee5ng nhi\u1ec1u ch\u1ec9 s\u1ed1 \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi n\u00f3 b\u00ean trong thu\u1eadt to\u00e1n t\u1ed5ng th\u1ec3.<\/p>\n\n\n\n<p>Nh\u01b0 m\u1ecdi khi, ch\u00fang t\u00f4i mong \u0111\u1ee3i ph\u1ea3n h\u1ed3i c\u1ee7a b\u1ea1n v\u00e0 hy v\u1ecdng m\u1ed9t s\u1ed1 b\u1ea1n s\u1ebd nh\u1eadn l\u1ea5y th\u1eed th\u00e1ch \u0111\u1ec3 ki\u1ebfm tra nh\u1eefng k\u1ebft lu\u1eadn tr\u00ean tr\u00ean c\u00e1c trang web c\u1ee7a b\u1ea1n ho\u1eb7c trong m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m v\u00e0 b\u00e1o l\u1ea1i cho ch\u00fang t\u00f4i c\u00e1c ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh nh\u00e9.<\/p>\n\n\n\n<p><em>(D\u1ecbch t\u1eeb b\u00e0i vi\u1ebft All Links are Not Created Equal: 10 Illustrations on Search Engines&#8217; Valuation of Links &#8211; T\u00e1c gi\u1ea3: Rand Fishkin &#8211; Website: MOZ)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u00ean c\u1ea1nh vi\u1ec7c nghi\u00ean c\u1ee9u t\u1eeb kh\u00f3a, th\u00ec x\u00e2y d\u1ef1ng li\u00ean k\u1ebft lu\u00f4n l\u00e0 th\u1ee9 \u00e1m \u1ea3nh ng\u01b0\u1eddi l\u00e0m SEO. Ch\u00fang ra l\u00fac n\u00e0o c\u0169ng t\u00f2 m\u00f2 v\u1ec1 c\u00e1ch m\u00e1y t\u00ecm ki\u1ebfm \u0111\u00e1nh gi\u00e1 li\u00ean k\u1ebft nh\u01b0 th\u1ebf n\u00e0o? V\u00e0o n\u0103m 1997, ng\u01b0\u1eddi s\u00e1ng l\u1eadp Google t\u1ea1o ra m\u1ed9t thu\u1eadt to\u00e1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ea7m &hellip;<\/p>\n","protected":false},"author":1,"featured_media":12637,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>10 minh h\u1ecda v\u1ec1 c\u00e1ch m\u00e1y t\u00ecm ki\u1ebfm \u0111\u00e1nh gi\u00e1 li\u00ean k\u1ebft: T\u1ea5t c\u1ea3 c\u00e1c li\u00ean k\u1ebft kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ecnh \u0111\u1eb3ng v\u1edbi nhau &#8226; Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiencang.net\/cach-may-tim-kiem-danh-gia-lien-ket\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"10 minh h\u1ecda v\u1ec1 c\u00e1ch m\u00e1y t\u00ecm ki\u1ebfm \u0111\u00e1nh gi\u00e1 li\u00ean k\u1ebft: T\u1ea5t c\u1ea3 c\u00e1c li\u00ean k\u1ebft kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra b\u00ecnh \u0111\u1eb3ng v\u1edbi nhau &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"B\u00ean c\u1ea1nh vi\u1ec7c nghi\u00ean c\u1ee9u t\u1eeb kh\u00f3a, th\u00ec x\u00e2y d\u1ef1ng li\u00ean k\u1ebft lu\u00f4n l\u00e0 th\u1ee9 \u00e1m \u1ea3nh ng\u01b0\u1eddi l\u00e0m SEO. 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