{"id":3333,"date":"2026-07-17T04:02:21","date_gmt":"2026-07-17T04:02:21","guid":{"rendered":"https:\/\/vbaseup.com\/kien-thuc\/?p=3333"},"modified":"2026-07-16T14:20:45","modified_gmt":"2026-07-16T14:20:45","slug":"cach-cong-cu-tim-kiem-hoat-dong","status":"publish","type":"post","link":"https:\/\/vbaseup.com\/kien-thuc\/cach-cong-cu-tim-kiem-hoat-dong\/","title":{"rendered":"C\u00f4ng C\u1ee5 T\u00ecm Ki\u1ebfm Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o?"},"content":{"rendered":"<p>Khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1ed9t truy v\u1ea5n, c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm <strong>kh\u00f4ng qu\u00e9t to\u00e0n b\u1ed9 Internet theo th\u1eddi gian th\u1ef1c<\/strong>. Thay v\u00e0o \u0111\u00f3, h\u1ec7 th\u1ed1ng truy xu\u1ea5t th\u00f4ng tin t\u1eeb m\u1ed9t ch\u1ec9 m\u1ee5c \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u01b0\u1edbc, sau \u0111\u00f3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eafp x\u1ebfp nh\u1eefng k\u1ebft qu\u1ea3 ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n<p>Qu\u00e1 tr\u00ecnh n\u00e0y g\u1ed3m ba b\u01b0\u1edbc k\u1ef9 thu\u1eadt tu\u1ea7n t\u1ef1: <strong>crawling \u0111\u1ec3 kh\u00e1m ph\u00e1 n\u1ed9i dung, indexing \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 l\u01b0u tr\u1eef, ranking \u0111\u1ec3 x\u1ebfp h\u1ea1ng k\u1ebft qu\u1ea3<\/strong>. M\u1ed9t trang ch\u01b0a \u0111\u01b0\u1ee3c crawl s\u1ebd kh\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n. Trang \u0111\u00e3 crawl ch\u01b0a ch\u1eafc \u0111\u01b0\u1ee3c index. Ngay c\u1ea3 khi \u0111\u00e3 \u0111\u01b0\u1ee3c index, trang v\u1eabn kh\u00f4ng m\u1eb7c nhi\u00ean c\u00f3 th\u1ee9 h\u1ea1ng cao.<\/p>\n<p>Hi\u1ec3u r\u00f5 chu\u1ed7i crawling \u2192 indexing \u2192 ranking gi\u00fap ng\u01b0\u1eddi l\u00e0m SEO x\u00e1c \u0111\u1ecbnh website \u0111ang g\u1eb7p v\u1ea5n \u0111\u1ec1 \u1edf \u0111\u00e2u v\u00e0 n\u00ean can thi\u1ec7p v\u00e0o b\u01b0\u1edbc n\u00e0o.<\/p>\n<h2>C\u00f4ng C\u1ee5 T\u00ecm Ki\u1ebfm L\u00e0 G\u00ec?<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/vbaseup.com\/kien-thuc\/wp-content\/uploads\/2026\/07\/search-engine-dinh-nghia.webp\" alt=\"c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm search engine \u0111\u1ecbnh ngh\u0129a search index algorithm\" \/><\/p>\n<blockquote><p>C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng tr\u1ef1c tuy\u1ebfn gi\u00fap ng\u01b0\u1eddi d\u00f9ng t\u00ecm th\u00f4ng tin b\u1eb1ng c\u00e1ch \u0111\u1ed1i chi\u1ebfu truy v\u1ea5n v\u1edbi d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c thu th\u1eadp v\u00e0 l\u01b0u tr\u1eef trong ch\u1ec9 m\u1ee5c.<\/p><\/blockquote>\n<p>M\u1ed9t c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u00f3 hai th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i:<\/p>\n<ul>\n<li><strong>Search index:<\/strong> C\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u1ee9a th\u00f4ng tin v\u1ec1 c\u00e1c trang web m\u00e0 h\u1ec7 th\u1ed1ng \u0111\u00e3 kh\u00e1m ph\u00e1, ph\u00e2n t\u00edch v\u00e0 l\u1ef1a ch\u1ecdn l\u01b0u tr\u1eef.<\/li>\n<li><strong>Search algorithm:<\/strong> Ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00e1nh gi\u00e1 truy v\u1ea5n, t\u00ecm c\u00e1c t\u00e0i li\u1ec7u ph\u00f9 h\u1ee3p trong index v\u00e0 s\u1eafp x\u1ebfp ch\u00fang theo th\u1ee9 t\u1ef1 h\u1eefu \u00edch nh\u1ea5t.<\/li>\n<\/ul>\n<p>T\u1eeb ho\u1eb7c c\u1ee5m t\u1eeb ng\u01b0\u1eddi d\u00f9ng nh\u1eadp v\u00e0o thanh t\u00ecm ki\u1ebfm \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>query<\/strong>. Trang hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 t\u01b0\u01a1ng \u1ee9ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a href=\"https:\/\/vbaseup.com\/kien-thuc\/serp-la-gi\/\">SERP<\/a>.<\/p>\n<p>V\u00ec v\u1eady, c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm kh\u00f4ng \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t danh s\u00e1ch website. \u0110\u00f3 l\u00e0 h\u1ec7 th\u1ed1ng li\u00ean t\u1ee5c kh\u00e1m ph\u00e1 n\u1ed9i dung, x\u00e2y d\u1ef1ng c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n \u0111\u1ec3 k\u1ebft n\u1ed1i nhu c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u1edbi th\u00f4ng tin ph\u00f9 h\u1ee3p.<\/p>\n<h2>Quy Tr\u00ecnh 3 B\u01b0\u1edbc: C\u00f4ng C\u1ee5 T\u00ecm Ki\u1ebfm Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o?<\/h2>\n<p>Ho\u1ea1t \u0111\u1ed9ng t\u00ecm ki\u1ebfm c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nh\u00ecn nh\u01b0 m\u1ed9t chu\u1ed7i ba b\u01b0\u1edbc li\u00ean ti\u1ebfp. <strong>Crawling<\/strong> gi\u00fap h\u1ec7 th\u1ed1ng bi\u1ebft n\u1ed9i dung t\u1ed3n t\u1ea1i. <strong>Indexing<\/strong> gi\u00fap h\u1ec7 th\u1ed1ng hi\u1ec3u v\u00e0 l\u01b0u n\u1ed9i dung. <strong>Ranking<\/strong> quy\u1ebft \u0111\u1ecbnh n\u1ed9i dung n\u00e0o n\u00ean xu\u1ea5t hi\u1ec7n tr\u01b0\u1edbc khi ng\u01b0\u1eddi d\u00f9ng t\u00ecm ki\u1ebfm.<\/p>\n<h3>Crawling \u2013 B\u01b0\u1edbc Kh\u00e1m Ph\u00e1 N\u1ed9i Dung Web<\/h3>\n<p><a href=\"https:\/\/vbaseup.com\/kien-thuc\/crawl-index-rank\/\">Crawling<\/a> l\u00e0 qu\u00e1 tr\u00ecnh c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh t\u1ef1 \u0111\u1ed9ng nh\u01b0 crawler, bot ho\u1eb7c spider truy c\u1eadp, t\u1ea3i xu\u1ed1ng v\u00e0 \u0111\u1ecdc n\u1ed9i dung tr\u00ean website. Googlebot l\u00e0 crawler ch\u00ednh c\u1ee7a Google.<\/p>\n<p>Crawler kh\u00f4ng di chuy\u1ec3n ng\u1eabu nhi\u00ean. H\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng quy tr\u00ecnh thu\u1eadt to\u00e1n \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh website n\u00e0o c\u1ea7n crawl, URL n\u00e0o n\u00ean \u0111\u01b0\u1ee3c \u01b0u ti\u00ean v\u00e0 t\u1ea7n su\u1ea5t quay l\u1ea1i t\u1eebng trang.<\/p>\n<p>Trong qu\u00e1 tr\u00ecnh n\u00e0y, bot th\u01b0\u1eddng:<\/p>\n<ul>\n<li>\u0110i theo li\u00ean k\u1ebft t\u1eeb nh\u1eefng trang \u0111\u00e3 bi\u1ebft \u0111\u1ec3 ph\u00e1t hi\u1ec7n URL m\u1edbi.<\/li>\n<li>Theo d\u00f5i c\u1ea3 li\u00ean k\u1ebft n\u1ed9i b\u1ed9 v\u00e0 li\u00ean k\u1ebft d\u1eabn sang website kh\u00e1c.<\/li>\n<li>Quay l\u1ea1i c\u00e1c URL c\u0169 \u0111\u1ec3 ki\u1ec3m tra n\u1ed9i dung c\u00f3 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt hay kh\u00f4ng.<\/li>\n<li>T\u1ea3i HTML v\u00e0 c\u00e1c t\u00e0i nguy\u00ean c\u1ea7n thi\u1ebft \u0111\u1ec3 chu\u1ea9n b\u1ecb cho vi\u1ec7c ph\u00e2n t\u00edch n\u1ed9i dung.<\/li>\n<\/ul>\n<p>N\u1ebfu m\u1ed9t trang kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c li\u00ean k\u1ebft t\u1eeb b\u1ea5t k\u1ef3 \u0111\u00e2u v\u00e0 c\u0169ng kh\u00f4ng xu\u1ea5t hi\u1ec7n trong sitemap, crawler c\u00f3 r\u1ea5t \u00edt \u0111\u01b0\u1eddng \u0111\u1ec3 t\u00ecm th\u1ea5y trang \u0111\u00f3. Trang v\u1eabn t\u1ed3n t\u1ea1i tr\u00ean website, nh\u01b0ng c\u00f3 th\u1ec3 g\u1ea7n nh\u01b0 v\u00f4 h\u00ecnh \u0111\u1ed1i v\u1edbi c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm.<\/p>\n<h3>Indexing \u2013 B\u01b0\u1edbc L\u01b0u Tr\u1eef V\u00e0 Ph\u00e2n T\u00edch N\u1ed9i Dung<\/h3>\n<p>Sau khi crawl m\u1ed9t trang, c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm b\u1eaft \u0111\u1ea7u ph\u00e2n t\u00edch n\u1ed9i dung \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh trang c\u00f3 n\u00ean \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o search index hay kh\u00f4ng. \u0110\u00e2y l\u00e0 giai \u0111o\u1ea1n indexing.<\/p>\n<p>Trong qu\u00e1 tr\u00ecnh n\u00e0y, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 thu th\u1eadp v\u00e0 t\u1ed5 ch\u1ee9c:<\/p>\n<ul>\n<li>T\u1eeb kh\u00f3a, ch\u1ee7 \u0111\u1ec1 v\u00e0 n\u1ed9i dung ch\u00ednh c\u1ee7a trang.<\/li>\n<li>Lo\u1ea1i n\u1ed9i dung nh\u01b0 v\u0103n b\u1ea3n, h\u00ecnh \u1ea3nh ho\u1eb7c video.<\/li>\n<li>Ng\u00f4n ng\u1eef, th\u1eddi \u0111i\u1ec3m c\u1eadp nh\u1eadt v\u00e0 m\u1ee9c \u0111\u1ed9 m\u1edbi c\u1ee7a th\u00f4ng tin.<\/li>\n<li>Ti\u00eau \u0111\u1ec1, m\u00f4 t\u1ea3, metadata, schema v\u00e0 microdata.<\/li>\n<li>T\u00edn hi\u1ec7u canonical, kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed5ng th\u1ec3 c\u1ee7a trang.<\/li>\n<\/ul>\n<p><strong>Crawl \u0111\u01b0\u1ee3c kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi index \u0111\u01b0\u1ee3c.<\/strong> M\u1ed9t trang c\u00f3 th\u1ec3 \u0111\u00e3 \u0111\u01b0\u1ee3c Googlebot truy c\u1eadp nh\u01b0ng v\u1eabn b\u1ecb lo\u1ea1i kh\u1ecfi index n\u1ebfu n\u1ed9i dung tr\u00f9ng l\u1eb7p, qu\u00e1 m\u1ecfng, ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p ho\u1eb7c kh\u00f4ng t\u1ea1o ra gi\u00e1 tr\u1ecb ri\u00eang.<\/p>\n<p>\u0110\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c index, trang c\u1ea7n cho ph\u00e9p c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm truy c\u1eadp, kh\u00f4ng ch\u1ee9a ch\u1ec9 th\u1ecb <code>noindex<\/code> v\u00e0 c\u00f3 n\u1ed9i dung \u0111\u1ee7 r\u00f5 r\u00e0ng \u0111\u1ec3 h\u1ec7 th\u1ed1ng hi\u1ec3u \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch c\u1ee7a trang.<\/p>\n<h3>Ranking \u2013 B\u01b0\u1edbc X\u1ebfp H\u1ea1ng V\u00e0 Tr\u1ea3 K\u1ebft Qu\u1ea3<\/h3>\n<p>Ranking l\u00e0 qu\u00e1 tr\u00ecnh thu\u1eadt to\u00e1n l\u1ea5y c\u00e1c trang \u0111\u00e3 \u0111\u01b0\u1ee3c index, \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u1edbi query v\u00e0 s\u1eafp x\u1ebfp ch\u00fang theo th\u1ee9 t\u1ef1. Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra t\u1ef1 \u0111\u1ed9ng d\u1ef1a tr\u00ean h\u00e0ng tr\u0103m t\u00edn hi\u1ec7u kh\u00e1c nhau.<\/p>\n<p>M\u1ed9t quy tr\u00ecnh ranking \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00ecnh dung nh\u01b0 sau:<\/p>\n<ol>\n<li>Thu\u1eadt to\u00e1n ph\u00e2n t\u00edch \u00fd ngh\u0129a v\u00e0 \u00fd \u0111\u1ecbnh ph\u00eda sau query.<\/li>\n<li>H\u1ec7 th\u1ed1ng t\u00ecm nh\u1eefng trang li\u00ean quan trong search index.<\/li>\n<li>C\u00e1c trang \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean relevance, quality, authority, backlinks, freshness, t\u1ed1c \u0111\u1ed9, kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng v\u00e0 nhi\u1ec1u t\u00edn hi\u1ec7u kh\u00e1c.<\/li>\n<li>K\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp v\u00e0 tr\u00ecnh b\u00e0y tr\u00ean SERP.<\/li>\n<\/ol>\n<p>Trang \u0111\u01b0\u1ee3c index ch\u1ec9 c\u00f3 ngh\u0129a l\u00e0 trang \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n xu\u1ea5t hi\u1ec7n, kh\u00f4ng c\u00f3 ngh\u0129a n\u00f3 s\u1ebd \u0111\u1ee9ng \u1edf v\u1ecb tr\u00ed cao.<\/p>\n<p>SERP c\u0169ng kh\u00f4ng ch\u1ec9 ch\u1ee9a k\u1ebft qu\u1ea3 organic. T\u00f9y theo \u00fd \u0111\u1ecbnh t\u00ecm ki\u1ebfm, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb featured snippet, People Also Ask, h\u00ecnh \u1ea3nh, video, AI Overviews ho\u1eb7c k\u1ebft qu\u1ea3 \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n<h2>Search Index \u0110\u01b0\u1ee3c X\u00e2y D\u1ef1ng Nh\u01b0 Th\u1ebf N\u00e0o?<\/h2>\n<p>Search index \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh qua nhi\u1ec1u l\u1edbp x\u1eed l\u00fd. Tr\u01b0\u1edbc ti\u00ean, c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm ph\u1ea3i ph\u00e1t hi\u1ec7n URL. Sau \u0111\u00f3, h\u1ec7 th\u1ed1ng t\u1ea3i v\u00e0 render n\u1ed9i dung, ph\u00e2n t\u00edch th\u00f4ng tin r\u1ed3i l\u1ef1a ch\u1ecdn phi\u00ean b\u1ea3n \u0111\u1ea1i di\u1ec7n n\u1ebfu c\u00f3 nhi\u1ec1u URL tr\u00f9ng l\u1eb7p.<\/p>\n<h3>Bot T\u00ecm URL M\u1edbi Qua Nh\u1eefng Ngu\u1ed3n N\u00e0o?<\/h3>\n<p>Crawler c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n URL m\u1edbi t\u1eeb b\u1ed1n ngu\u1ed3n ch\u00ednh:<\/p>\n<ul>\n<li><strong>Li\u00ean k\u1ebft t\u1eeb trang \u0111\u00e3 bi\u1ebft:<\/strong> Bot \u0111i theo li\u00ean k\u1ebft n\u1ed9i b\u1ed9 ho\u1eb7c backlink \u0111\u1ec3 t\u00ecm trang m\u1edbi.<\/li>\n<li><strong>XML sitemap:<\/strong> File li\u1ec7t k\u00ea nh\u1eefng URL quan tr\u1ecdng m\u00e0 ch\u1ee7 website mu\u1ed1n c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm bi\u1ebft \u0111\u1ebfn.<\/li>\n<li><strong>URL submission:<\/strong> Ch\u1ee7 website g\u1eedi URL th\u00f4ng qua Google Search Console \u0111\u1ec3 y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng ki\u1ec3m tra.<\/li>\n<li><strong>Seed URL:<\/strong> Nh\u1eefng URL ban \u0111\u1ea7u \u0111\u01b0\u1ee3c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm s\u1eed d\u1ee5ng l\u00e0m \u0111i\u1ec3m xu\u1ea5t ph\u00e1t cho ho\u1ea1t \u0111\u1ed9ng crawling.<\/li>\n<\/ul>\n<p>Kh\u1ea3 n\u0103ng kh\u00e1m ph\u00e1 URL l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a <a href=\"https:\/\/vbaseup.com\/kien-thuc\/technical-seo\/\">technical SEO<\/a>. M\u1ed9t trang c\u00f3 n\u1ed9i dung t\u1ed1t nh\u01b0ng kh\u00f4ng c\u00f3 \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ec3 bot ti\u1ebfp c\u1eadn v\u1eabn c\u00f3 th\u1ec3 ch\u1eadm \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n.<\/p>\n<p>Sitemap \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch \u0111\u1ed1i v\u1edbi website m\u1edbi, website l\u1edbn ho\u1eb7c h\u1ec7 th\u1ed1ng c\u00f3 nhi\u1ec1u trang n\u1eb1m s\u00e2u trong c\u1ea5u tr\u00fac. Ngo\u00e0i URL, sitemap c\u00f2n c\u00f3 th\u1ec3 gi\u00fap c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u1eadn bi\u1ebft lo\u1ea1i n\u1ed9i dung, th\u1eddi \u0111i\u1ec3m c\u1eadp nh\u1eadt v\u00e0 c\u00e1c phi\u00ean b\u1ea3n ng\u00f4n ng\u1eef li\u00ean quan.<\/p>\n<h3>Rendering JavaScript \u1ea2nh H\u01b0\u1edfng G\u00ec \u0110\u1ebfn Indexing?<\/h3>\n<p>Nhi\u1ec1u website hi\u1ec7n \u0111\u1ea1i kh\u00f4ng \u0111\u1eb7t to\u00e0n b\u1ed9 n\u1ed9i dung tr\u1ef1c ti\u1ebfp trong HTML ban \u0111\u1ea7u. N\u1ed9i dung ch\u1ec9 xu\u1ea5t hi\u1ec7n sau khi tr\u00ecnh duy\u1ec7t ch\u1ea1y JavaScript. V\u00ec v\u1eady, t\u1ea3i m\u00e3 ngu\u1ed3n ch\u01b0a ch\u1eafc \u0111\u00e3 \u0111\u1ee7 \u0111\u1ec3 c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u00ecn th\u1ea5y to\u00e0n b\u1ed9 trang.<\/p>\n<p>Sau b\u01b0\u1edbc crawl, Google c\u00f3 th\u1ec3 \u0111\u01b0a trang v\u00e0o qu\u00e1 tr\u00ecnh rendering v\u00e0 ch\u1ea1y JavaScript b\u1eb1ng phi\u00ean b\u1ea3n Chrome g\u1ea7n nh\u1ea5t. B\u01b0\u1edbc n\u00e0y gi\u00fap Googlebot nh\u00ecn th\u1ea5y nh\u1eefng th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c t\u1ea1o \u0111\u1ed9ng \u1edf ph\u00eda tr\u00ecnh duy\u1ec7t.<\/p>\n<p>N\u1ebfu CSS, JavaScript ho\u1eb7c h\u00ecnh \u1ea3nh quan tr\u1ecdng b\u1ecb ch\u1eb7n, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 kh\u00f4ng render \u0111\u01b0\u1ee3c trang gi\u1ed1ng nh\u01b0 ng\u01b0\u1eddi d\u00f9ng th\u1ef1c t\u1ebf. N\u1ed9i dung \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng JavaScript khi \u0111\u00f3 c\u00f3 nguy c\u01a1 b\u1ecb hi\u1ec3u thi\u1ebfu ho\u1eb7c b\u1ecb b\u1ecf qua trong qu\u00e1 tr\u00ecnh indexing.<\/p>\n<p>Website ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o JavaScript v\u00ec th\u1ebf c\u1ea7n b\u1ea3o \u0111\u1ea3m bot c\u00f3 th\u1ec3 t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean c\u1ea7n thi\u1ebft v\u00e0 n\u1ed9i dung ch\u00ednh v\u1eabn xu\u1ea5t hi\u1ec7n r\u00f5 r\u00e0ng sau khi render.<\/p>\n<h3>Canonicalization X\u1eed L\u00fd Duplicate Content Ra Sao?<\/h3>\n<p>M\u1ed9t n\u1ed9i dung c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy c\u1eadp qua nhi\u1ec1u URL kh\u00e1c nhau. C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u1ea7n gom c\u00e1c URL tr\u00f9ng l\u1eb7p ho\u1eb7c g\u1ea7n tr\u00f9ng l\u1eb7p th\u00e0nh m\u1ed9t nh\u00f3m, sau \u0111\u00f3 l\u1ef1a ch\u1ecdn m\u1ed9t <strong>canonical page<\/strong> l\u00e0m phi\u00ean b\u1ea3n \u0111\u1ea1i di\u1ec7n trong k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm.<\/p>\n<p>C\u00e1c bi\u1ebfn th\u1ec3 th\u01b0\u1eddng g\u1eb7p g\u1ed3m:<\/p>\n<ul>\n<li>Phi\u00ean b\u1ea3n <code>www<\/code> v\u00e0 <code>non-www<\/code>.<\/li>\n<li>Giao th\u1ee9c HTTP v\u00e0 HTTPS.<\/li>\n<li>Phi\u00ean b\u1ea3n d\u00e0nh cho mobile v\u00e0 desktop.<\/li>\n<li>URL c\u00f3 ho\u1eb7c kh\u00f4ng c\u00f3 tham s\u1ed1.<\/li>\n<li>Nhi\u1ec1u URL danh m\u1ee5c d\u1eabn \u0111\u1ebfn c\u00f9ng m\u1ed9t n\u1ed9i dung.<\/li>\n<\/ul>\n<p>Thu\u1ed9c t\u00ednh <code>rel=canonical<\/code> gi\u00fap website ch\u1ec9 \u0111\u1ecbnh URL \u0111\u01b0\u1ee3c \u01b0u ti\u00ean. Tuy nhi\u00ean, canonical c\u1ea7n tr\u1ecf \u0111\u1ebfn \u0111\u00fang phi\u00ean b\u1ea3n n\u1ed9i dung ch\u00ednh v\u00e0 ph\u1ea3i nh\u1ea5t qu\u00e1n v\u1edbi sitemap, li\u00ean k\u1ebft n\u1ed9i b\u1ed9 c\u00f9ng c\u00e1c t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt kh\u00e1c.<\/p>\n<p>M\u1ed9t canonical \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh sai c\u00f3 th\u1ec3 khi\u1ebfn c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm ch\u1ecdn nh\u1ea7m URL \u0111\u1ea1i di\u1ec7n ho\u1eb7c lo\u1ea1i trang quan tr\u1ecdng kh\u1ecfi index. \u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn ph\u00eda sau nhi\u1ec1u v\u1ea5n \u0111\u1ec1 indexing kh\u00f3 nh\u1eadn bi\u1ebft.<\/p>\n<h2>Thu\u1eadt To\u00e1n X\u1ebfp H\u1ea1ng D\u00f9ng Nh\u1eefng T\u00edn Hi\u1ec7u N\u00e0o?<\/h2>\n<p>Khi \u0111\u00e3 c\u00f3 m\u1ed9t nh\u00f3m trang ph\u00f9 h\u1ee3p trong index, thu\u1eadt to\u00e1n c\u1ea7n x\u00e1c \u0111\u1ecbnh k\u1ebft qu\u1ea3 n\u00e0o h\u1eefu \u00edch nh\u1ea5t. Quy\u1ebft \u0111\u1ecbnh n\u00e0y kh\u00f4ng d\u1ef1a tr\u00ean m\u1ed9t y\u1ebfu t\u1ed1 ri\u00eang l\u1ebb m\u00e0 l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nhi\u1ec1u nh\u00f3m t\u00edn hi\u1ec7u.<\/p>\n<h3>C\u00e1c Y\u1ebfu T\u1ed1 X\u1ebfp H\u1ea1ng Ph\u1ed5 Bi\u1ebfn Nh\u1ea5t<\/h3>\n<p>Nh\u1eefng nh\u00f3m t\u00edn hi\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c thu\u1eadt to\u00e1n \u0111\u00e1nh gi\u00e1 g\u1ed3m:<\/p>\n<ul>\n<li><strong>Relevance:<\/strong> N\u1ed9i dung c\u00f3 th\u1ef1c s\u1ef1 tr\u1ea3 l\u1eddi query v\u00e0 \u0111\u00fang v\u1edbi \u00fd \u0111\u1ecbnh t\u00ecm ki\u1ebfm hay kh\u00f4ng.<\/li>\n<li><strong>Quality:<\/strong> Th\u00f4ng tin c\u00f3 \u0111\u1ea7y \u0111\u1ee7, r\u00f5 r\u00e0ng, ch\u00ednh x\u00e1c v\u00e0 t\u1ea1o ra gi\u00e1 tr\u1ecb hay kh\u00f4ng.<\/li>\n<li><strong>Authority:<\/strong> Trang v\u00e0 website c\u00f3 nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 c\u00f4ng nh\u1eadn t\u1eeb nh\u1eefng ngu\u1ed3n kh\u00e1c hay kh\u00f4ng. Backlink c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t d\u1ea1ng phi\u1ebfu t\u00edn nhi\u1ec7m.<\/li>\n<li><strong>Freshness:<\/strong> N\u1ed9i dung c\u00f3 \u0111\u1ee7 m\u1edbi \u0111\u1ed1i v\u1edbi nh\u1eefng truy v\u1ea5n nh\u1ea1y c\u1ea3m v\u1ec1 th\u1eddi gian hay kh\u00f4ng.<\/li>\n<li><strong>Usability:<\/strong> Trang c\u00f3 t\u1ea3i nhanh, d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng hay kh\u00f4ng.<\/li>\n<li><strong>Context:<\/strong> Ng\u00f4n ng\u1eef, v\u1ecb tr\u00ed v\u00e0 ho\u00e0n c\u1ea3nh t\u00ecm ki\u1ebfm c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi k\u1ebft qu\u1ea3 hay kh\u00f4ng.<\/li>\n<\/ul>\n<p>Google, Bing v\u00e0 DuckDuckGo \u0111\u1ec1u s\u1eed d\u1ee5ng nh\u1eefng nguy\u00ean t\u1eafc n\u1ec1n t\u1ea3ng t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng c\u00e1ch t\u00ednh tr\u1ecdng s\u1ed1 cho t\u1eebng t\u00edn hi\u1ec7u kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau. V\u00ec Google chi\u1ebfm h\u01a1n 90% th\u1ecb ph\u1ea7n t\u00ecm ki\u1ebfm to\u00e0n c\u1ea7u, ph\u1ea7n l\u1edbn chi\u1ebfn l\u01b0\u1ee3c SEO th\u01b0\u1eddng l\u1ea5y c\u01a1 ch\u1ebf c\u1ee7a Google l\u00e0m tr\u1ecdng t\u00e2m.<\/p>\n<p>\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 kh\u00f4ng c\u00f3 m\u1ed9t \u201cn\u00fat b\u1ea5m\u201d \u0111\u01a1n l\u1ebb gi\u00fap website \u0111\u1ee9ng \u0111\u1ea7u. Ranking l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a nhi\u1ec1u t\u00edn hi\u1ec7u h\u1ed7 tr\u1ee3 ho\u1eb7c l\u00e0m suy y\u1ebfu l\u1eabn nhau.<\/p>\n<h3>K\u1ebft Qu\u1ea3 Organic Kh\u00e1c K\u1ebft Qu\u1ea3 Paid Nh\u01b0 Th\u1ebf N\u00e0o?<\/h3>\n<table>\n<thead>\n<tr>\n<th>Organic<\/th>\n<th>Paid<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u01b0\u1ee3c x\u1ebfp h\u1ea1ng t\u1ef1 \u0111\u1ed9ng b\u1eb1ng thu\u1eadt to\u00e1n t\u00ecm ki\u1ebfm.<\/td>\n<td>Xu\u1ea5t hi\u1ec7n th\u00f4ng qua chi\u1ebfn d\u1ecbch qu\u1ea3ng c\u00e1o tr\u1ea3 ti\u1ec1n.<\/td>\n<\/tr>\n<tr>\n<td>Th\u1ee9 h\u1ea1ng ph\u1ee5 thu\u1ed9c v\u00e0o relevance, quality, authority v\u00e0 c\u00e1c t\u00edn hi\u1ec7u SEO.<\/td>\n<td>V\u1ecb tr\u00ed ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ea5u gi\u00e1 qu\u1ea3ng c\u00e1o, gi\u00e1 th\u1ea7u, ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 m\u1ee9c \u0111\u1ed9 li\u00ean quan.<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f4ng tr\u1ea3 ti\u1ec1n cho c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm \u0111\u1ec3 t\u0103ng organic ranking.<\/td>\n<td>Th\u01b0\u1eddng v\u1eadn h\u00e0nh theo m\u00f4 h\u00ecnh PPC, nh\u00e0 qu\u1ea3ng c\u00e1o tr\u1ea3 ph\u00ed khi c\u00f3 l\u01b0\u1ee3t nh\u1ea5p.<\/td>\n<\/tr>\n<tr>\n<td>C\u00f3 th\u1ec3 t\u1ea1o kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb b\u1ec1n h\u01a1n n\u1ebfu n\u1ed9i dung ti\u1ebfp t\u1ee5c h\u1eefu \u00edch.<\/td>\n<td>Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb th\u01b0\u1eddng gi\u1ea3m ho\u1eb7c d\u1eebng khi chi\u1ebfn d\u1ecbch h\u1ebft ng\u00e2n s\u00e1ch.<\/td>\n<\/tr>\n<tr>\n<td>K\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y nh\u01b0 n\u1ed9i dung t\u00ecm ki\u1ebfm t\u1ef1 nhi\u00ean.<\/td>\n<td>\u0110\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u v\u00e0 hi\u1ec3n th\u1ecb t\u00e1ch bi\u1ec7t d\u01b0\u1edbi d\u1ea1ng qu\u1ea3ng c\u00e1o.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Google kh\u00f4ng nh\u1eadn ti\u1ec1n \u0111\u1ec3 crawl website th\u01b0\u1eddng xuy\u00ean h\u01a1n ho\u1eb7c n\u00e2ng th\u1ee9 h\u1ea1ng organic. Doanh thu t\u1eeb PPC l\u00e0 m\u00f4 h\u00ecnh kinh doanh c\u1ee7a c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm, nh\u01b0ng c\u01a1 ch\u1ebf qu\u1ea3ng c\u00e1o v\u00e0 thu\u1eadt to\u00e1n organic l\u00e0 hai h\u1ec7 th\u1ed1ng t\u00e1ch bi\u1ec7t.<\/p>\n<h2>C\u00f4ng C\u1ee5 T\u00ecm Ki\u1ebfm C\u00e1 Nh\u00e2n H\u00f3a K\u1ebft Qu\u1ea3 Theo Nh\u1eefng Y\u1ebfu T\u1ed1 N\u00e0o?<\/h2>\n<p>Sau khi thu\u1eadt to\u00e1n \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng, k\u1ebft qu\u1ea3 c\u00f2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo b\u1ed1i c\u1ea3nh c\u1ee7a ng\u01b0\u1eddi t\u00ecm ki\u1ebfm. \u0110\u00e2y l\u00e0 l\u00fd do hai ng\u01b0\u1eddi nh\u1eadp c\u00f9ng m\u1ed9t query nh\u01b0ng kh\u00f4ng nh\u1ea5t thi\u1ebft nh\u00ecn th\u1ea5y SERP gi\u1ed1ng nhau.<\/p>\n<h3>V\u1ecb Tr\u00ed \u0110\u1ecba L\u00fd<\/h3>\n<p>V\u1ecb tr\u00ed \u1ea3nh h\u01b0\u1edfng m\u1ea1nh \u0111\u1ebfn nh\u1eefng truy v\u1ea5n c\u00f3 \u00fd \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u1ee5m t\u1eeb ch\u1ee9a \u201cg\u1ea7n \u0111\u00e2y\u201d, \u201cg\u1ea7n t\u00f4i\u201d ho\u1eb7c t\u00ean m\u1ed9t khu v\u1ef1c c\u1ee5 th\u1ec3.<\/p>\n<p>C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP v\u00e0 v\u1ecb tr\u00ed c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh khu v\u1ef1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. T\u1eeb \u0111\u00f3, h\u1ec7 th\u1ed1ng \u01b0u ti\u00ean doanh nghi\u1ec7p, \u0111\u1ecba \u0111i\u1ec3m ho\u1eb7c n\u1ed9i dung ph\u00f9 h\u1ee3p v\u1edbi v\u00f9ng \u0111\u1ecba l\u00fd \u0111\u00f3.<\/p>\n<p>V\u00ed d\u1ee5, c\u00f9ng m\u1ed9t truy v\u1ea5n v\u1ec1 nh\u00e0 h\u00e0ng nh\u01b0ng ng\u01b0\u1eddi t\u00ecm ki\u1ebfm t\u1ea1i H\u00e0 N\u1ed9i v\u00e0 TP.HCM s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c k\u1ebft qu\u1ea3 \u0111\u1ecba ph\u01b0\u01a1ng kh\u00e1c nhau. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, v\u1ecb tr\u00ed l\u00e0 m\u1ed9t ph\u1ea7n tr\u1ef1c ti\u1ebfp c\u1ee7a \u00fd \u0111\u1ecbnh t\u00ecm ki\u1ebfm.<\/p>\n<h3>Ng\u00f4n Ng\u1eef V\u00e0 Thi\u1ebft B\u1ecb<\/h3>\n<p>C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh ng\u00f4n ng\u1eef ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean c\u00e0i \u0111\u1eb7t tr\u00ecnh duy\u1ec7t, ng\u00f4n ng\u1eef truy v\u1ea5n v\u00e0 l\u1ecbch s\u1eed t\u00ecm ki\u1ebfm. M\u1ed9t trang \u0111\u00fang ch\u1ee7 \u0111\u1ec1 nh\u01b0ng s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef kh\u00f4ng ph\u00f9 h\u1ee3p th\u01b0\u1eddng kh\u00f3 \u0111\u01b0\u1ee3c \u01b0u ti\u00ean.<\/p>\n<p>Lo\u1ea1i thi\u1ebft b\u1ecb c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00e0 tr\u00ecnh b\u00e0y. Ng\u01b0\u1eddi d\u00f9ng mobile c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u01b0u ti\u00ean nh\u1eefng trang t\u1ea3i nhanh, d\u1ec5 thao t\u00e1c tr\u00ean m\u00e0n h\u00ecnh nh\u1ecf v\u00e0 hi\u1ec3n th\u1ecb \u1ed5n \u0111\u1ecbnh.<\/p>\n<p>V\u1edbi mobile-first indexing, Google s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n mobile l\u00e0m phi\u00ean b\u1ea3n ch\u00ednh \u0111\u1ec3 crawl, ph\u00e2n t\u00edch v\u00e0 index. V\u00ec v\u1eady, n\u1ed9i dung quan tr\u1ecdng ch\u1ec9 xu\u1ea5t hi\u1ec7n tr\u00ean desktop c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ec7 th\u1ed1ng ghi nh\u1eadn \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<h3>L\u1ecbch S\u1eed T\u00ecm Ki\u1ebfm<\/h3>\n<p>L\u1ecbch s\u1eed t\u00ecm ki\u1ebfm gi\u00fap c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u1eadn bi\u1ebft m\u00f4 h\u00ecnh quan t\u00e2m tr\u01b0\u1edbc \u0111\u00e2y c\u1ee7a t\u1eebng ng\u01b0\u1eddi d\u00f9ng. H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 \u01b0u ti\u00ean nh\u1eefng lo\u1ea1i k\u1ebft qu\u1ea3, website ho\u1eb7c ch\u1ee7 \u0111\u1ec1 ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi h\u00e0nh vi \u0111\u00e3 quan s\u00e1t.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y gi\u1ea3i th\u00edch v\u00ec sao m\u1ed9t query c\u00f3 th\u1ec3 t\u1ea1o ra k\u1ebft qu\u1ea3 kh\u00e1c nhau gi\u1eefa hai t\u00e0i kho\u1ea3n ho\u1eb7c hai thi\u1ebft b\u1ecb. Tuy nhi\u00ean, c\u00e1 nh\u00e2n h\u00f3a c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra \u201cfilter bubble\u201d: ng\u01b0\u1eddi d\u00f9ng li\u00ean t\u1ee5c nh\u00ecn th\u1ea5y nh\u1eefng k\u1ebft qu\u1ea3 g\u1ea7n v\u1edbi quan \u0111i\u1ec3m ho\u1eb7c h\u00e0nh vi c\u0169, trong khi c\u00e1c g\u00f3c nh\u00ecn kh\u00e1c \u00edt xu\u1ea5t hi\u1ec7n h\u01a1n.<\/p>\n<p>V\u00ec k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a, v\u1ecb tr\u00ed th\u1ee9 h\u1ea1ng m\u00e0 ch\u1ee7 website t\u1ef1 nh\u00ecn th\u1ea5y ch\u01b0a ch\u1eafc ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c tr\u1ea3i nghi\u1ec7m c\u1ee7a to\u00e0n b\u1ed9 ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h2>V\u00ec Sao Trang Web Kh\u00f4ng \u0110\u01b0\u1ee3c Index?<\/h2>\n<p>M\u1ed9t trang c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i, ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng v\u00e0 th\u1eadm ch\u00ed \u0111\u00e3 \u0111\u01b0\u1ee3c crawler truy c\u1eadp nh\u01b0ng v\u1eabn kh\u00f4ng xu\u1ea5t hi\u1ec7n trong search index. S\u00e1u nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u1ed3m:<\/p>\n<ul>\n<li><strong>Noindex tag ho\u1eb7c X-Robots-Tag:<\/strong> Trang ch\u1ee9a ch\u1ec9 th\u1ecb y\u00eau c\u1ea7u c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm kh\u00f4ng \u0111\u01b0a n\u1ed9i dung v\u00e0o index.<\/li>\n<li><strong>B\u1ecb ch\u1eb7n b\u1edfi robots.txt:<\/strong> Crawler kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u1ec3 \u0111\u1ecdc v\u00e0 ph\u00e2n t\u00edch n\u1ed9i dung trang.<\/li>\n<li><strong>Server error ho\u1eb7c crawl error:<\/strong> L\u1ed7i HTTP 500, th\u1eddi gian ph\u1ea3n h\u1ed3i qu\u00e1 l\u00e2u ho\u1eb7c k\u1ebft n\u1ed1i kh\u00f4ng \u1ed5n \u0111\u1ecbnh khi\u1ebfn bot kh\u00f4ng t\u1ea3i \u0111\u01b0\u1ee3c trang.<\/li>\n<li><strong>Wrong canonical:<\/strong> Canonical tr\u1ecf sang m\u1ed9t URL kh\u00e1c, khi\u1ebfn c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm xem URL hi\u1ec7n t\u1ea1i l\u00e0 phi\u00ean b\u1ea3n ph\u1ee5.<\/li>\n<li><strong>N\u1ed9i dung tr\u00f9ng l\u1eb7p, qu\u00e1 m\u1ecfng ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p:<\/strong> H\u1ec7 th\u1ed1ng kh\u00f4ng nh\u1eadn th\u1ea5y \u0111\u1ee7 gi\u00e1 tr\u1ecb \u0111\u1ec3 l\u01b0u th\u00eam trang v\u00e0o index.<\/li>\n<li><strong>Kh\u00f4ng c\u00f3 inbound link v\u00e0 kh\u00f4ng n\u1eb1m trong sitemap:<\/strong> Crawler kh\u00f3 ph\u00e1t hi\u1ec7n ho\u1eb7c \u0111\u00e1nh gi\u00e1 trang l\u00e0 kh\u00f4ng quan tr\u1ecdng.<\/li>\n<\/ul>\n<p>Tr\u1ea1ng th\u00e1i \u201cCrawled \u2013 currently not indexed\u201d trong Google Search Console cho bi\u1ebft Google \u0111\u00e3 truy c\u1eadp URL nh\u01b0ng ch\u01b0a l\u1ef1a ch\u1ecdn \u0111\u01b0a trang v\u00e0o index. Nguy\u00ean nh\u00e2n th\u01b0\u1eddng kh\u00f4ng n\u1eb1m \u1edf kh\u1ea3 n\u0103ng crawl m\u00e0 \u1edf ch\u1ea5t l\u01b0\u1ee3ng, t\u00ednh \u0111\u1ed9c l\u1eadp ho\u1eb7c gi\u00e1 tr\u1ecb c\u1ee7a n\u1ed9i dung.<\/p>\n<p>M\u1ed9t trang c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u00e1o l\u00e0 \u0111\u00e3 index nh\u01b0ng v\u1eabn kh\u00f4ng xu\u1ea5t hi\u1ec7n khi t\u00ecm ki\u1ebfm. Tr\u01b0\u1eddng h\u1ee3p n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 ph\u00f9 h\u1ee3p th\u1ea5p, ch\u1ea5t l\u01b0\u1ee3ng ch\u01b0a \u0111\u1ee7 ho\u1eb7c quy t\u1eafc robots meta gi\u1edbi h\u1ea1n vi\u1ec7c hi\u1ec3n th\u1ecb. Hi\u1ec3u \u0111\u00fang <a href=\"https:\/\/vbaseup.com\/kien-thuc\/seo-la-gi\/\">SEO l\u00e0 g\u00ec<\/a> gi\u00fap ph\u00e2n bi\u1ec7t r\u00f5 gi\u1eefa vi\u1ec7c \u0111\u01b0\u1ee3c index v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ea1t th\u1ee9 h\u1ea1ng th\u1ef1c t\u1ebf.<\/p>\n<h2>C\u00f4ng C\u1ee5 T\u00ecm Ki\u1ebfm Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o \u2013 T\u1ed5ng K\u1ebft<\/h2>\n<p>C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm v\u1eadn h\u00e0nh qua ba b\u01b0\u1edbc n\u1ec1n t\u1ea3ng: <strong>crawling, indexing v\u00e0 ranking<\/strong>. Crawling gi\u00fap bot kh\u00e1m ph\u00e1 v\u00e0 t\u1ea3i n\u1ed9i dung. Indexing gi\u00fap h\u1ec7 th\u1ed1ng ph\u00e2n t\u00edch, t\u1ed5 ch\u1ee9c v\u00e0 l\u01b0u tr\u1eef th\u00f4ng tin. Ranking l\u1ea5y nh\u1eefng trang \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n trong index r\u1ed3i s\u1eafp x\u1ebfp ch\u00fang theo query c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<p>Hi\u1ec3u \u0111\u00fang chu\u1ed7i n\u00e0y gi\u00fap ng\u01b0\u1eddi l\u00e0m website x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c \u0111i\u1ec3m c\u1ea7n can thi\u1ec7p. Technical SEO x\u1eed l\u00fd nh\u1eefng r\u00e0o c\u1ea3n li\u00ean quan \u0111\u1ebfn crawling v\u00e0 indexing. N\u1ed9i dung, on-page SEO v\u00e0 link building t\u1ea1o th\u00eam t\u00edn hi\u1ec7u cho ranking.<\/p>\n<p>SEO v\u1ec1 b\u1ea3n ch\u1ea5t l\u00e0 qu\u00e1 tr\u00ecnh gi\u00fap c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm kh\u00e1m ph\u00e1, hi\u1ec3u v\u00e0 \u0111\u00e1nh gi\u00e1 website hi\u1ec7u qu\u1ea3 h\u01a1n. Khi m\u1ed9t trang kh\u00f4ng xu\u1ea5t hi\u1ec7n ho\u1eb7c c\u00f3 th\u1ee9 h\u1ea1ng th\u1ea5p, c\u00e2u h\u1ecfi \u0111\u1ea7u ti\u00ean kh\u00f4ng n\u00ean l\u00e0 \u201cl\u00e0m sao \u0111\u1ec3 l\u00ean top\u201d, m\u00e0 l\u00e0 \u201ctrang \u0111ang m\u1eafc l\u1ea1i \u1edf b\u01b0\u1edbc crawl, index hay rank\u201d.<\/p>\n<h4>Crawl Budget C\u00f3 \u1ea2nh H\u01b0\u1edfng \u0110\u1ebfn T\u1ed1c \u0110\u1ed9 Index Kh\u00f4ng?<\/h4>\n<p><strong>C\u00f3.<\/strong> Crawl budget, g\u1ed3m crawl rate v\u00e0 crawl demand, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng URL m\u00e0 bot c\u00f3 th\u1ec3 truy c\u1eadp trong m\u1ed9t kho\u1ea3ng th\u1eddi gian. V\u1edbi website l\u1edbn, n\u1ebfu bot ch\u1ec9 crawl m\u1ed9t ph\u1ea7n nh\u1ecf URL m\u1ed7i ng\u00e0y, trang m\u1edbi c\u00f3 th\u1ec3 m\u1ea5t nhi\u1ec1u th\u1eddi gian h\u01a1n \u0111\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0 index. Server ph\u1ea3n h\u1ed3i ch\u1eadm ho\u1eb7c th\u01b0\u1eddng xuy\u00ean tr\u1ea3 l\u1ed7i HTTP 500 c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn bot gi\u1ea3m t\u1ed1c \u0111\u1ed9 crawl \u0111\u1ec3 tr\u00e1nh t\u1ea1o th\u00eam \u00e1p l\u1ef1c l\u00ean h\u1ec7 th\u1ed1ng.<\/p>\n<h4>Robots.txt C\u00f3 Ng\u0103n \u0110\u01b0\u1ee3c Trang B\u1ecb Index Kh\u00f4ng?<\/h4>\n<p><strong>Kh\u00f4ng ho\u00e0n to\u00e0n.<\/strong> Robots.txt ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng crawling, kh\u00f4ng tr\u1ef1c ti\u1ebfp ki\u1ec3m so\u00e1t indexing. M\u1ed9t URL b\u1ecb ch\u1eb7n crawl v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o index n\u1ebfu c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm bi\u1ebft \u0111\u1ebfn URL \u0111\u00f3 qua li\u00ean k\u1ebft t\u1eeb trang kh\u00e1c. Khi c\u1ea7n ng\u0103n index, website n\u00ean s\u1eed d\u1ee5ng <code>noindex<\/code> trong robots meta tag ho\u1eb7c X-Robots-Tag, \u0111\u1ed3ng th\u1eddi cho ph\u00e9p crawler truy c\u1eadp \u0111\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c ch\u1ec9 th\u1ecb n\u00e0y.<\/p>\n<h4>Schema Markup C\u00f3 \u0110\u1ea3m B\u1ea3o Rich Result Kh\u00f4ng?<\/h4>\n<p><strong>Kh\u00f4ng.<\/strong> Schema markup gi\u00fap c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm hi\u1ec3u r\u00f5 h\u01a1n n\u1ed9i dung v\u00e0 c\u00e1c th\u1ef1c th\u1ec3 tr\u00ean trang, nh\u01b0ng kh\u00f4ng b\u1ea3o \u0111\u1ea3m rich result s\u1ebd xu\u1ea5t hi\u1ec7n tr\u00ean SERP. Vi\u1ec7c hi\u1ec3n th\u1ecb c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng n\u1ed9i dung, m\u1ee9c \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u1edbi query v\u00e0 c\u00e1ch c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm \u0111\u00e1nh gi\u00e1 trang trong t\u1eebng l\u1ea7n t\u00ecm ki\u1ebfm.<\/p>\n<h4>AI Search C\u00f3 D\u00f9ng C\u00f9ng Index V\u1edbi Google Kh\u00f4ng?<\/h4>\n<p><strong>C\u00f3, nh\u01b0ng ch\u1ec9 m\u1ed9t ph\u1ea7n.<\/strong> C\u00e1c tr\u1ee3 l\u00fd AI nh\u01b0 ChatGPT, Gemini ho\u1eb7c Claude c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi search index \u0111\u1ec3 t\u00ecm website theo th\u1eddi gian th\u1ef1c, nh\u01b0ng kh\u00f4ng nh\u1ea5t thi\u1ebft s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t ch\u1ec9 m\u1ee5c. Ri\u00eang AI Overviews c\u1ee7a Google l\u00e0 l\u1edbp t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean search index hi\u1ec7n c\u00f3 c\u1ee7a Google. D\u00f9 c\u00e1ch tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 thay \u0111\u1ed5i, crawling v\u00e0 indexing v\u1eabn l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 n\u1ed9i dung web \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1ed9t truy v\u1ea5n, c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm kh\u00f4ng qu\u00e9t to\u00e0n b\u1ed9 Internet theo th\u1eddi gian th\u1ef1c. Thay v\u00e0o \u0111\u00f3, h\u1ec7 th\u1ed1ng truy xu\u1ea5t th\u00f4ng tin t\u1eeb m\u1ed9t ch\u1ec9 m\u1ee5c \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u01b0\u1edbc, sau \u0111\u00f3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eafp x\u1ebfp nh\u1eefng k\u1ebft qu\u1ea3 ph\u00f9 h\u1ee3p nh\u1ea5t. Qu\u00e1 tr\u00ecnh n\u00e0y g\u1ed3m [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3331,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[16],"class_list":["post-3333","post","type-post","status-publish","format-standard","has-post-thumbnail","category-seo","tag-seo"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/posts\/3333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/comments?post=3333"}],"version-history":[{"count":3,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/posts\/3333\/revisions"}],"predecessor-version":[{"id":3338,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/posts\/3333\/revisions\/3338"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/media\/3331"}],"wp:attachment":[{"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/media?parent=3333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/categories?post=3333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vbaseup.com\/kien-thuc\/wp-json\/wp\/v2\/tags?post=3333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}