{"id":12397624,"date":"2026-05-13T14:55:11","date_gmt":"2026-05-13T06:55:11","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e5%a6%82%e4%bd%95%e4%bc%98%e5%8c%96wordpress%e7%bd%91%e7%ab%99%e6%80%a7%e8%83%bd%ef%bc%9a%e4%bb%8e%e5%8a%a0%e8%bd%bd%e9%80%9f%e5%ba%a6%e5%88%b0%e7%94%a8%e6%88%b7%e4%bd%93%e9%aa%8c%e7%9a%84%e5%ae%8c\/"},"modified":"2026-06-04T16:54:38","modified_gmt":"2026-06-04T08:54:38","slug":"wordpress-performance-optimization-guide-96wordpress","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/wordpress\/wordpress-performance-optimization-guide-96wordpress\/","title":{"rendered":"C\u00e1ch t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t trang web WordPress: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n t\u1eeb t\u1ed1c \u0111\u1ed9 t\u1ea3i trang \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng"},"content":{"rendered":"

\u0110\u1ed1i v\u1edbi m\u1ed9t trang web WordPress th\u00e0nh c\u00f4ng, hi\u1ec7u su\u1ea5t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh li\u1ec7u trang web c\u00f3 th\u1ec3 gi\u1eef ch\u00e2n kh\u00e1ch truy c\u1eadp, n\u00e2ng cao t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i v\u00e0 cu\u1ed1i c\u00f9ng \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u1ee9 h\u1ea1ng t\u1ed1t tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm hay kh\u00f4ng. T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 \u0111\u01a1n l\u1ebb, m\u00e0 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh t\u1ed5ng th\u1ec3 bao g\u1ed3m nhi\u1ec1u kh\u00eda c\u1ea1nh nh\u01b0 m\u00e1y ch\u1ee7, m\u00e3 ngu\u1ed3n, t\u00e0i nguy\u00ean, c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p cho b\u1ea1n m\u1ed9t h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, t\u1eeb nh\u1eefng b\u01b0\u1edbc c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao.<\/p>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a m\u00e1y ch\u1ee7 v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/h2>\n\n\n\n

N\u1ec1n t\u1ea3ng c\u1ee7a m\u1ed9t trang web n\u1eb1m \u1edf m\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef (hosting environment) c\u1ee7a n\u00f3. M\u1ed9t m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh kh\u00f4ng \u0111\u00fang c\u00e1ch s\u1ebd l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 c\u1ee7a m\u1ecdi n\u1ed7 l\u1ef1c t\u1ed1i \u01b0u h\u00f3a sau n\u00e0y.<\/p>\n\n\n\n

Ch\u1ecdn gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef hi\u1ec7u su\u1ea5t cao<\/h3>\n\n\n\n

H\u00e3y tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c m\u00e1y ch\u1ee7 \u1ea3o (virtual host) \u0111\u01b0\u1ee3c chia s\u1ebb v\u00ec ch\u00fang th\u01b0\u1eddng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf v\u1ec1 t\u00e0i nguy\u00ean. H\u00e3y c\u00e2n nh\u1eafc n\u00e2ng c\u1ea5p l\u00ean c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 M\u00e1y ch\u1ee7 \u1ea2o Ri\u00eang (VPS \u2013 Virtual Private Server), M\u00e1y ch\u1ee7 \u0110i\u1ec7n to\u00e1n \u0110\u00e1m m\u00e2y (Cloud Hosting), ho\u1eb7c c\u00e1c d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef WordPress \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a chuy\u00ean bi\u1ec7t. Nh\u1eefng gi\u1ea3i ph\u00e1p n\u00e0y th\u01b0\u1eddng cung c\u1ea5p CPU t\u1ed1c h\u01a1n, b\u1ed9 nh\u1edb l\u1edbn h\u01a1n, \u1ed5 \u0111\u0129a SSD, v\u00e0 k\u1ebft n\u1ed1i m\u1ea1ng t\u1ed1t h\u01a1n, t\u1eeb \u0111\u00f3 t\u1ea1o n\u1ec1n t\u1ea3ng v\u1eadt l\u00fd v\u1eefng ch\u1eafc cho t\u1ed1c \u0111\u1ed9 truy c\u1eadp trang web.<\/p>\n

\u0110\u1ecdc th\u00eam T\u1ea1i sao c\u1ea7n t\u1ed1i \u01b0u h\u00f3a trang web WordPress?<\/a>\u3002<\/p>\n\n\n\n\n

C\u1ea5u h\u00ecnh ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web hi\u1ec7u qu\u1ea3<\/h3>\n\n\n\n

Nginx th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n Apache trong vi\u1ec7c x\u1eed l\u00fd c\u00e1c t\u1ec7p tin t\u0129nh v\u00e0 c\u00e1c y\u00eau c\u1ea7u truy c\u1eadp c\u00f3 s\u1ed1 l\u01b0\u1ee3ng l\u1edbn (high-concurrency requests). Nhi\u1ec1u nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef hi\u1ec7u su\u1ea5t cao hi\u1ec7n \u0111ang s\u1eed d\u1ee5ng Nginx m\u1ed9t c\u00e1ch m\u1eb7c \u0111\u1ecbnh, ho\u1eb7c k\u1ebft h\u1ee3p Nginx v\u1edbi Apache (ch\u1eb3ng h\u1ea1n nh\u01b0 LiteSpeed). H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n \u0111\u00e3 c\u00e0i \u0111\u1eb7t phi\u00ean b\u1ea3n PHP m\u1edbi nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh v\u1edbi c\u00e1c gi\u1edbi h\u1ea1n b\u1ed9 nh\u1edb PHP ph\u00f9 h\u1ee3p. B\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c n\u00e0y tr\u00ean trang qu\u1ea3n tr\u1ecb c\u1ee7a m\u00e1y ch\u1ee7.wp-config.php<\/code>Thay \u0111\u1ed5i gi\u1edbi h\u1ea1n b\u1ed9 nh\u1edb trong t\u1ec7p tin.<\/p>\n\n\r\n

\r\n \r\n
\r\n \r\n UltaHost \u2013 Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7 WordPress chuy\u00ean nghi\u1ec7p <\/strong>\r\n
B\u1ea3o \u0111\u1ea3m ho\u00e0n ti\u1ec1n trong 30 ng\u00e0y, b\u0103ng th\u00f4ng v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng gi\u1edbi h\u1ea1n, b\u1ea3o v\u1ec7 DDoS mi\u1ec5n ph\u00ed, mua 3 n\u0103m \u01b0u \u0111\u00e3i 50%<\/div>\r\n <\/div>\r\n\r\n
\r\n \r\n \"Logo\r\n \r\n <\/a>\r\n \r\n \r\n Truy c\u1eadp trang <\/a>\r\n <\/div>\r\n<\/div>\n\n\n\n\n\n\n

V\u00ed d\u1ee5, \u0111\u1ec3 t\u0103ng gi\u1edbi h\u1ea1n b\u1ed9 nh\u1edb PHP:<\/p>\n\n\n\n

define('WP_MEMORY_LIMIT', '256M');<\/code><\/pre>\n\n\n\n
K\u00edch ho\u1ea1t c\u01a1 ch\u1ebf b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ed1i t\u01b0\u1ee3ng<\/h3>\n\n\n\n
\u0110\u1ed1i v\u1edbi c\u00e1c trang web \u0111\u1ed9ng, vi\u1ec7c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra t\u00ecnh tr\u1ea1ng gi\u1ea3m hi\u1ec7u n\u0103ng. Vi\u1ec7c k\u00edch ho\u1ea1t ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef \u0111\u1ed1i t\u01b0\u1ee3ng (object caching) \u1edf c\u1ea5p \u0111\u1ed9 m\u00e1y ch\u1ee7 c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ea3i l\u01b0\u1ee3ng l\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u. N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng Redis ho\u1eb7c Memcached, b\u1ea1n c\u1ea7n c\u00e0i \u0111\u1eb7t c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (extensions) t\u01b0\u01a1ng \u1ee9ng cho PHP, v\u00e0 sau \u0111\u00f3 tri\u1ec3n khai ch\u00fang trong WordPress th\u00f4ng qua c\u00e1c plugin ho\u1eb7c c\u00e1c c\u00e1ch th\u1ee9c kh\u00e1c.wp-config.php<\/code>C\u1ea5u h\u00ecnh \u0111\u1ec3 k\u1ebft n\u1ed1i.<\/p>\n\n\n\n
T\u1ed1i \u01b0u h\u00f3a c\u00e1c t\u1ec7p tin c\u1ed1t l\u00f5i v\u00e0 m\u00e3 ngu\u1ed3n<\/h2>\n\n\n\n
Ch\u1ea5t l\u01b0\u1ee3ng m\u00e3 ngu\u1ed3n c\u1ee7a ph\u1ea7n c\u1ed1t l\u00f5i WordPress, c\u00e1c giao di\u1ec7n (theme) v\u00e0 ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin) c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 ph\u00e2n t\u00edch v\u00e0 th\u1ef1c thi n\u1ed9i dung trang web.<\/p>\n\n\n\n
T\u1ed1i \u01b0u h\u00f3a t\u1ea3i tr\u1ecdng c\u1ee7a ch\u1ee7 \u0111\u1ec1 (theme) v\u00e0 c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin)<\/h3>\n\n\n\n
Th\u1ef1c hi\u1ec7n ki\u1ec3m to\u00e1n \u0111\u1ecbnh k\u1ef3 v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a nh\u1eefng plugin kh\u00f4ng c\u1ea7n thi\u1ebft. M\u1ed7i plugin \u0111\u1ec1u l\u00e0m t\u0103ng s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u HTTP, th\u1eddi gian th\u1ef1c thi m\u00e3 PHP v\u00e0 s\u1ed1 l\u01b0\u1ee3ng truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u. H\u00e3y ch\u1ecdn c\u00e1c giao di\u1ec7n (theme) v\u00e0 plugin c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1eb9, ch\u1ea5t l\u01b0\u1ee3ng m\u00e3 ngu\u1ed3n t\u1ed1t, v\u00e0 \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean.functions.php<\/code>Trong t\u1ec7p tin, h\u00e3y tr\u00e1nh th\u00eam qu\u00e1 nhi\u1ec1u t\u00ednh n\u0103ng kh\u00f4ng c\u1ea7n thi\u1ebft v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c vi\u1ebft m\u1ed9t c\u00e1ch ng\u1eafn g\u1ecdn, s\u1ea1ch s\u1ebd v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n
\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t WordPress to\u00e0n di\u1ec7n: T\u1eeb t\u1ea3i ch\u1eadm \u0111\u1ebfn c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 v\u01b0\u1ee3t tr\u1ed9i<\/a>\u3002<\/p>\n\n\n\n\n
D\u1ecdn d\u1eb9p c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c truy v\u1ea5n (queries).<\/h3>\n\n\n\n
Khi trang web ho\u1ea1t \u0111\u1ed9ng, c\u01a1 s\u1edf d\u1eef li\u1ec7u s\u1ebd t\u00edch l\u0169y d\u1eef li\u1ec7u th\u1eeba nh\u01b0 c\u00e1c phi\u00ean b\u1ea3n \u0111\u00e3 s\u1eeda \u0111\u1ed5i, b\u1ea3n th\u1ea3o, b\u00ecnh lu\u1eadn kh\u00f4ng c\u1ea7n thi\u1ebft, v.v. H\u00e3y th\u01b0\u1eddng xuy\u00ean s\u1eed d\u1ee5ng c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin) nh\u01b0 WP-Optimize \u0111\u1ec3 d\u1ecdn d\u1eb9p c\u01a1 s\u1edf d\u1eef li\u1ec7u. Ngo\u00e0i ra, h\u00e3y ki\u1ec3m tra v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c truy v\u1ea5n t\u00f9y ch\u1ec9nh, \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c ch\u1ec9 m\u1ee5c (index) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, v\u00e0 tr\u00e1nh th\u1ef1c hi\u1ec7n c\u00e1c truy v\u1ea5n trong v\u00f2ng l\u1eb7p (loop). B\u1ea1n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng c\u00e1c t\u00ednh n\u0103ng c\u00f3 s\u1eb5n trong WordPress \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y.Transients API<\/code>\u0110\u00e2y l\u00e0 c\u01a1 ch\u1ebf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u01b0u tr\u1eef k\u1ebft qu\u1ea3 c\u1ee7a c\u00e1c truy v\u1ea5n ph\u1ee9c t\u1ea1p v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m (cache), nh\u1eb1m gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 th\u1ef1c hi\u1ec7n c\u00e1c truy v\u1ea5n t\u01b0\u01a1ng t\u1ef1 trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n
Th\u1ef1c hi\u1ec7n vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a k\u00edch th\u01b0\u1edbc m\u00e3 ngu\u1ed3n (minimize code size) v\u00e0 h\u1ee3p nh\u1ea5t c\u00e1c \u0111o\u1ea1n m\u00e3 (merge code segments).<\/h3>\n\n\n\n
H\u00e3y gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng t\u1ec7p tin m\u00e0 tr\u00ecnh duy\u1ec7t c\u1ea7n t\u1ea3i xu\u1ed1ng v\u00e0 ph\u00e2n t\u00edch. \u0110\u1ed1i v\u1edbi c\u00e1c t\u1ec7p CSS v\u00e0 JavaScript, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ho\u1eb7c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (ch\u1eb3ng h\u1ea1n nh\u01b0 Autoptimize) \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a ch\u00fang (lo\u1ea1i b\u1ecf c\u00e1c kho\u1ea3ng tr\u1eafng v\u00e0 ch\u00fa th\u00edch kh\u00f4ng c\u1ea7n thi\u1ebft) v\u00e0 h\u1ee3p nh\u1ea5t ch\u00fang l\u1ea1i v\u1edbi nhau. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng vi\u1ec7c h\u1ee3p nh\u1ea5t qu\u00e1 nhi\u1ec1u t\u1ec7p tin c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a giao th\u1ee9c HTTP\/2; v\u00ec v\u1eady vi\u1ec7c th\u1eed nghi\u1ec7m l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110\u1ed3ng th\u1eddi, h\u00e3y \u0111\u1ea3m b\u1ea3o \u0111\u1eb7t c\u00e1c t\u1eadp l\u1ec7nh JavaScript \u1edf \u0111\u00fang v\u1ecb tr\u00ed \u2013 \u0111\u00e1nh d\u1ea5u nh\u1eefng t\u1eadp l\u1ec7nh kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c hi\u1ec3n th\u1ecb trang \u0111\u1ea7u ti\u00ean l\u00e0 \u0111\u1ec3 t\u1ea3i ch\u00fang sau ho\u1eb7c theo c\u00e1ch \u0111\u1ed3ng b\u1ed9 kh\u00f4ng ngay l\u1eadp t\u1ee9c (t\u1ea3i \u0111\u1ed3ng b\u1ed9 ch\u1eadm).<\/p>\n\n\n\n
Chi\u1ebfn l\u01b0\u1ee3c t\u1ea3i t\u00e0i nguy\u00ean t\u0129nh (Static Resource Loading Strategy)<\/h2>\n\n\n\n
H\u00ecnh \u1ea3nh, b\u1ea3ng \u0111\u1ecbnh d\u1ea1ng (style sheets), script v\u00e0 c\u00e1c t\u00e0i nguy\u00ean t\u0129nh kh\u00e1c l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 t\u1ea3i trang web.<\/p>\n\n\r\n
\r\n     \r\n  
\r\n    \r\n      Hosting.com - l\u01b0u tr\u1eef chia s\u1ebb    <\/strong>\r\n    
Hi\u1ec7u n\u0103ng cao, \u0111\u01b0\u1ee3c trang b\u1ecb CPU AMD EPYC, l\u01b0u tr\u1eef SSD NVMe v\u00e0 LiteSpeed, h\u1ed7 tr\u1ee3 chuy\u00ean gia n\u1ed9i b\u1ed9 24 gi\u1edd\/ng\u00e0y, c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt ti\u00ean ti\u1ebfn bao g\u1ed3m SSL, ch\u1ed1ng brute force, ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i v\u00e0 b\u1ea3o v\u1ec7 DDoS, ti\u1ebft ki\u1ec7m t\u1edbi 73%.<\/div>\r\n  <\/div>\r\n\r\n  
\r\n          \r\n                  \"Logo\r\n          \r\n              <\/a>\r\n    \r\n    \r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n\n\n\n
C\u00e1c k\u1ef9 thu\u1eadt t\u1ed1i \u01b0u h\u00f3a h\u00ecnh \u1ea3nh n\u00e2ng cao<\/h3>\n\n\n\n
H\u00ecnh \u1ea3nh th\u01b0\u1eddng l\u00e0 lo\u1ea1i t\u00e0i nguy\u00ean chi\u1ebfm nhi\u1ec1u dung l\u01b0\u1ee3ng nh\u1ea5t. Tr\u01b0\u1edbc khi t\u1ea3i l\u00ean, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ec3 n\u00e9n h\u00ecnh \u1ea3nh. Tr\u00ean trang web, h\u00e3y tri\u1ec3n khai c\u00f4ng ngh\u1ec7 h\u00ecnh \u1ea3nh th\u00edch \u1ee9ng (responsive images) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u00ecnh \u1ea3nh c\u00f3 k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p khi \u0111\u01b0\u1ee3c t\u1ea3i xu\u1ed1ng tr\u00ean c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau. H\u00e3y s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ecbnh d\u1ea1ng hi\u1ec7n \u0111\u1ea1i h\u01a1n nh\u01b0 WebP.htaccess<\/code>C\u00e1c quy t\u1eafc ho\u1eb7c ti\u1ec7n \u00edch b\u1ed5 sung \u0111\u01b0\u1ee3c cung c\u1ea5p cho nh\u1eefng ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3. K\u1ef9 thu\u1eadt t\u1ea3i \u1ea3nh theo y\u00eau c\u1ea7u (lazy loading) l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft, nh\u1eb1m \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u1ea3nh ch\u1ec9 \u0111\u01b0\u1ee3c t\u1ea3i v\u00e0o khi ch\u00fang xu\u1ea5t hi\u1ec7n trong t\u1ea7m nh\u00ecn ng\u01b0\u1eddi d\u00f9ng. WordPress \u0111\u00e3 t\u00edch h\u1ee3p s\u1eb5n h\u1ed7 tr\u1ee3 t\u1ea3i \u1ea3nh theo y\u00eau c\u1ea7u ngay trong phi<\/p>\n\n\n\n
(S\u1eed d\u1ee5ng b\u1ed9 \u0111\u1ec7m c\u1ee7a tr\u00ecnh duy\u1ec7t v\u00e0 m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung)<\/h3>\n\n\n\n
B\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp c\u00e1c ti\u00eau \u0111\u1ec1 HTTP (HTTP headers), b\u1ea1n c\u00f3 th\u1ec3 y\u00eau c\u1ea7u tr\u00ecnh duy\u1ec7t l\u01b0u tr\u1eef c\u00e1c t\u00e0i nguy\u00ean t\u0129nh trong m\u1ed9t th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh, t\u1eeb \u0111\u00f3 gi\u00fap t\u0103ng \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 truy c\u1eadp cho nh\u1eefng ng\u01b0\u1eddi truy c\u1eadp l\u1ea1i trang web. B\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c quy t\u1eafc v\u00e0o c\u1ea5<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (Content Delivery Network \u2013 CDN) \u0111\u00f3ng vai tr\u00f2 v\u00f4 c\u00f9ng quan tr\u1ecdng. CDN s\u1ebd ph\u00e2n ph\u1ed1i c\u00e1c t\u00e0i nguy\u00ean t\u0129nh (static resources) c\u1ee7a b\u1ea1n \u0111\u1ebfn c\u00e1c node (n\u00fat trung gian) \u1edf kh\u1eafp n\u01a1i tr\u00ean th\u1ebf gi\u1edbi, gi\u00fap ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp d\u1eef li\u1ec7u t\u1eeb node g\u1ea7n nh\u1ea5t, t\u1eeb \u0111\u00f3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1ec5 trong qu\u00e1 tr\u00ecnh truy c\u1eadp trang web. H\u00e3y thay \u0111\u1ed5i t\u00ean mi\u1ec1n c\u1ee7a c\u00e1c t\u1ec7p tin t\u0129nh tr\u00ean trang web th\u00e0nh \u0111\u1ecba ch\u1ec9 CDN.<\/p>\n
\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u h\u00f3a SEO ch\u1ea5t l\u01b0\u1ee3ng: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 n\u00e2ng cao \u0111\u1ed9 hi\u1ec3n th\u1ecb v\u00e0 th\u1ee9 h\u1ea1ng trang web m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng<\/a>\u3002<\/p>\n\n\n\n\n
T\u1ed1i \u01b0u h\u00f3a \u0111\u01b0\u1eddng d\u1eabn hi\u1ec3n th\u1ecb (Critical Rendering Path Optimization)<\/h3>\n\n\n\n
H\u00e3y t\u1ed1i \u01b0u h\u00f3a c\u00e1ch truy\u1ec1n t\u1ea3i c\u00e1c t\u1ec7p CSS v\u00e0 JavaScript \u0111\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian t\u1ea3i trang \u0111\u1ea7u ti\u00ean. \u0110\u1ed1i v\u1edbi nh\u1eefng ph\u1ea7n CSS quan tr\u1ecdng v\u00e0 c\u1ea7n thi\u1ebft cho vi\u1ec7c hi\u1ec3n th\u1ecb trang \u0111\u1ea7u ti\u00ean, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u00ednh k\u00e8m ch\u00fang tr\u1ef1c ti\u1ebfp v\u00e0o m\u00e3 HTML.<head><\/code>\u0110\u00fang v\u1eady. \u0110\u1ed1i v\u1edbi c\u00e1c t\u1eadp tin CSS v\u00e0 JS kh\u00f4ng quan tr\u1ecdng, n\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec3 gi\u1ea3m k\u00edch th\u01b0\u1edbc c\u1ee7a ch\u00fang, nh\u1eb1m c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 t\u1ea3i trang web.async<\/code>\u6216defer<\/code>T\u00ednh n\u0103ng t\u1ea3i \u0111\u1ed3ng b\u1ed9 c\u00e1c thu\u1ed9c t\u00ednh (attribute loading asynchronously). T\u1eeb phi\u00ean b\u1ea3n 5.7, WordPress \u0111\u00e3 b\u1ed5 sung t\u00ednh n\u0103ng n\u00e0y cho c\u00e1c script \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd s\u1eb5n.async<\/code>\u548cdefer<\/code>C\u00e1c thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/p>\n\n\n\n
Gi\u00e1m s\u00e1t li\u00ean t\u1ee5c v\u00e0 t\u1ed1i \u01b0u h\u00f3a n\u00e2ng cao<\/h2>\n\n\n\n
T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c, \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 s\u1ef1 \u0111o l\u01b0\u1eddng v\u00e0 l\u1eb7p l\u1ea1i (iteration).<\/p>\n\n\r\n
\r\n     \r\n  
\r\n    \r\n      M\u00e1y ch\u1ee7 chia s\u1ebb c\u1ee7a InterServer    <\/strong>\r\n    
L\u01b0u tr\u1eef chia s\u1ebb v\u1edbi m\u1ee9c ph\u00ed $2,50 USD m\u1ed7i th\u00e1ng, gi\u1ea3m gi\u00e1 $0,1 USD trong th\u00e1ng \u0111\u1ea7u ti\u00ean, m\u00e3 gi\u1ea3m gi\u00e1 tryinterserver, v\u1edbi 461 \u1ee9ng d\u1ee5ng \u0111\u00e1m m\u00e2y v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ec9 b\u1eb1ng m\u1ed9t c\u00fa nh\u1ea5p chu\u1ed9t.<\/div>\r\n  <\/div>\r\n\r\n  
\r\n          \r\n                  \"Logo\r\n          \r\n              <\/a>\r\n    \r\n    \r\n       Truy c\u1eadp trang    <\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n\n\n\n
Th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 t\u1ed1c \u0111\u1ed9 trang web.<\/h3>\n\n\n\n
\u0110\u1eebng \u0111o\u00e1n m\u00f2 d\u1ef1a tr\u00ean c\u1ea3m gi\u00e1c. H\u00e3y th\u01b0\u1eddng xuy\u00ean s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ec3 ph\u00e2n t\u00edch t\u1ed1c \u0111\u1ed9 trang web. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd \u0111\u01b0a ra nh\u1eefng g\u1ee3i \u00fd chi ti\u1ebft, ch\u1eb3ng h\u1ea1n nh\u01b0 \u201cgi\u1ea3m b\u1edbt JavaScript kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng\u201d, \u201c\u0111i\u1ec1u ch\u1ec9nh chi\u1ebfn l\u01b0\u1ee3c l\u01b0u tr\u1eef (cache) m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p\u201d, v.v., v\u00e0 \u0111\u00f3 ch\u00ednh l\u00e0 h\u01b0\u1edbng d\u1eabn h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3 \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a trang web c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n
Nh\u1eefng l\u00fd do c\u1ea7n xem x\u00e9t khi th\u1ef1c hi\u1ec7n vi\u1ec7c t\u00e1ch bi\u1ec7t ph\u1ea7n front-end v\u00e0 back-end:<\/h3>\n\n\n\n
\u0110\u1ed1i v\u1edbi c\u00e1c trang web c\u00f3 n\u1ed9i dung d\u00e0y \u0111\u1eb7c ho\u1eb7c y\u00eau c\u1ea7u m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c cao, b\u1ea1n c\u00f3 th\u1ec3 xem x\u00e9t s\u1eed d\u1ee5ng ki\u1ebfn tr\u00fac \u201cWordPress Headless\u201d. Trong ch\u1ebf \u0111\u1ed9 n\u00e0y, WordPress ch\u1ec9 \u0111\u00f3ng vai tr\u00f2 l\u00e0 n\u1ec1n t\u1ea3ng qu\u1ea3n l\u00fd n\u1ed9i dung, trong khi ph\u1ea7n giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (frontend) \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1edfi c\u00e1c framework JavaScript hi\u1ec7n \u0111\u1ea1i nh\u01b0 React ho\u1eb7c Vue. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a ph\u1ea7n giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng m\u1ed9t c\u00e1ch t\u1ed1i \u0111a, nh\u01b0ng \u0111\u00f2i h\u1ecfi chi ph\u00ed ph\u00e1t tri\u1ec3n v\u00e0 b\u1ea3o tr\u00ec k\u1ef9 thu\u1eadt cao h\u01a1n.<\/p>\n\n\n\n
X\u00e2y d\u1ef1ng quy tr\u00ecnh t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111\u00e1nh gi\u00e1 hi\u1ec7u n\u0103ng (Automated Performance Workflow)<\/h3>\n\n\n\n
H\u00e3y t\u00edch h\u1ee3p c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra hi\u1ec7u n\u0103ng v\u00e0o quy tr\u00ecnh ph\u00e1t tri\u1ec3n. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd phi\u00ean b\u1ea3n (version control systems) ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng CI\/CD (Continuous Integration\/Continuous Deployment) \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra ng\u00e2n s\u00e1ch hi\u1ec7u n\u0103ng, ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng m\u00e3 ngu\u1ed3n v\u00e0 ph\u00e2n t\u00edch t\u00e0i nguy\u00ean tr\u01b0\u1edbc khi tri\u1ec3n khai m\u00e3 ngu\u1ed3n.wp-cron<\/code>H\u00e3y thi\u1ebft l\u1eadp c\u00e1c t\u00e1c v\u1ee5 \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng d\u1ecdn d\u1eb9p d\u1eef li\u1ec7u t\u1ea1m th\u1eddi, l\u01b0u tr\u1eef trang web v\u00e0o b\u1ed9 \u0111\u1ec7m (cache), ho\u1eb7c t\u1ea1o c\u00e1c b\u00e1o c\u00e1o v\u1ec1 hi\u1ec7u su\u1ea5t, nh\u1eb1m \u0111\u1ea3m b\u1ea3o trang web lu\u00f4n ho\u1ea1t \u0111\u1ed9ng \u1edf tr\u1ea1ng th\u00e1i t\u1ed1t nh\u1ea5t trong th\u1eddi gian d\u00e0i.<\/p>\n\n\n\n
T\u00f3m l\u1ea1i<\/h2>\n\n\n\n
Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t trang web WordPress l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng, bao g\u1ed3m nhi\u1ec1u kh\u00eda c\u1ea1nh t\u1eeb c\u1ea5p \u0111\u1ed9 m\u00e1y ch\u1ee7 (ph\u00eda backend) \u0111\u1ebfn giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (ph\u00eda frontend). Qu\u00e1 tr\u00ecnh n\u00e0y b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t m\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef (hosting) \u1ed5n \u0111\u1ecbnh, ti\u1ebfp t\u1ee5c th\u00f4ng qua \u0111o\u1ea1n m\u00e3 ngu\u1ed3n g\u1ecdn g\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3, t\u1eadp trung v\u00e0o vi\u1ec7c t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean t\u0129nh m\u1ed9t c\u00e1ch th\u00f4ng minh, v\u00e0 k\u1ebft th\u00fac b\u1eb1ng vi\u1ec7c theo d\u00f5i li\u00ean t\u1ee5c c\u0169ng nh\u01b0 c\u00e1c l\u1ea7n c\u1eadp nh\u1eadt (iteration) c\u1ea7n thi\u1ebft. Kh\u00f4ng c\u00f3 gi\u1ea3i ph\u00e1p n\u00e0o c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft m\u1ecdi v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch tri\u1ec7t \u0111\u1ec3; m\u1ed7i trang web \u0111\u1ec1u c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean c\u00e1c plugin, giao di\u1ec7n (theme) v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1ch h\u00e0ng c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 t\u1ea3i trang web, t\u1eeb \u0111\u00f3 mang l\u1ea1i tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng t\u1ed1t h\u01a1n, v\u1ecb tr\u00ed cao h\u01a1n tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm (search engines), v\u00e0 k\u1ebft qu\u1ea3 kinh doanh t\u1ed1t h<\/p>\n\n\n\n
FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n
Sau khi b\u1eadt ti\u1ec7n \u00edch l\u01b0u tr\u1eef \u0111\u1ec7m (cache plugin), n\u1ebfu trang web kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt ngay l\u1eadp t\u1ee9c, b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc sau:<\/h3>\n\n\n\n
H\u1ea7u h\u1ebft c\u00e1c plugin l\u01b0u tr\u1eef \u0111\u1ec1u cung c\u1ea5p ch\u1ee9c n\u0103ng x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m m\u1ed9t c\u00e1ch r\u1ea5t ti\u1ec7n l\u1ee3i. B\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a c\u00e1c trang li\u00ean quan sau khi \u0111\u0103ng b\u00e0i m\u1edbi ho\u1eb7c c\u1eadp nh\u1eadt n\u1ed9i dung trang web. Nhi\u1ec1u plugin c\u0169ng h\u1ed7 tr\u1ee3 vi\u1ec7c thi\u1ebft l\u1eadp quy t\u1eafc x\u00f3a t\u1ef1 \u0111\u1ed9ng; v\u00ed d\u1ee5, khi c\u00f3 b\u00e0i vi\u1ebft \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt, ch\u00fang s\u1ebd t\u1ef1 \u0111\u1ed9ng x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a trang ch\u1ee7, trang b\u00e0i v\u00e0 trang danh m\u1ee5c. C\u00e1c gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef \u0111\u1ec7m n\u00e2ng cao (nh\u01b0 l\u01b0u tr\u1eef \u0111\u1ed1i t\u01b0\u1ee3ng) th\u01b0\u1eddng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh th\u1eddi gian th\u1ef1c c\u1ee7a n\u1ed9i dung.<\/p>\n\n\n\n
T\u1ea1i sao d\u00f9 \u0111\u00e3 t\u1ed1i \u01b0u h\u00f3a m\u1ecdi kh\u00eda c\u1ea1nh nh\u01b0ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp trang web v\u1eabn r\u1ea5t ch\u1eadm?<\/h3>\n\n\n\n
T\u00ecnh hu\u1ed1ng n\u00e0y th\u01b0\u1eddng ch\u1ec9 ra hai v\u1ea5n \u0111\u1ec1 c\u01a1 b\u1ea3n. Th\u1ee9 nh\u1ea5t, c\u00f3 th\u1ec3 l\u00e0 hi\u1ec7u su\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a m\u00e1y ch\u1ee7 l\u01b0u tr\u1eef b\u1ea1n qu\u00e1 k\u00e9m, v\u1edbi ngu\u1ed3n l\u1ef1c (nh\u01b0 CPU, I\/O) kh\u00f4ng \u0111\u1ee7; trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, m\u1ecdi bi\u1ec7n ph\u00e1p t\u1ed1i \u01b0u h\u00f3a \u1edf c\u1ea5p \u0111\u1ed9 ph\u1ea7n m\u1ec1m \u0111\u1ec1u \u00edt hi\u1ec7u qu\u1ea3, v\u00e0 b\u1ea1n c\u1ea7n xem x\u00e9t vi\u1ec7c n\u00e2ng c\u1ea5p m\u00e1y ch\u1ee7. Th\u1ee9 hai, c\u00f3 th\u1ec3 l\u00e0 trang web ch\u1ee9a \u0111o\u1ea1n m\u00e3 t\u00f9y ch\u1ec9nh, plugin ho\u1eb7c truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng hi\u1ec7u qu\u1ea3, t\u1ea1o th\u00e0nh \u0111i\u1ec3m ngh\u1ebdn v\u1ec1 hi\u1ec7u su\u1ea5t. \u0110\u1ec1 xu\u1ea5t s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t \u0111\u1ec3 ki\u1ec3m tra t\u1eebng th\u00e0nh ph\u1ea7n m\u1ed9t, ho\u1eb7c th\u1eed t\u1eaft t\u1eebng plugin v\u00e0 thay \u0111\u1ed5i giao di\u1ec7n (theme) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n c\u1ee5 th\u1ec3 c\u1ee7a v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n
Li\u1ec7u c\u00f4ng ngh\u1ec7 t\u1ea3i \u1ea3nh theo y\u00eau c\u1ea7u (lazy loading) c\u00f3 mang l\u1ea1i l\u1ee3i \u00edch cho t\u1ea5t c\u1ea3 c\u00e1c h\u00ecnh \u1ea3nh kh\u00f4ng?<\/h3>\n\n\n\n
Vi\u1ec7c t\u1ea3i \u1ea3nh m\u1ed9t c\u00e1ch t\u1eeb t\u1eeb (lazy loading) ch\u1eafc ch\u1eafn r\u1ea5t h\u1eefu \u00edch \u0111\u1ed1i v\u1edbi c\u00e1c \u1ea3nh n\u1eb1m sau trang ch\u1ee7, c\u00e1c \u1ea3nh trong b\u1ed9 \u1ea3nh tr\u00ecnh chi\u1ebfu (carousel), v.v., v\u00ec n\u00f3 gi\u00fap gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u v\u00e0 l\u01b0\u1ee3ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ea3i v\u00e0o trang web ban \u0111\u1ea7u. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi nh\u1eefng \u1ea3nh quan tr\u1ecdng n\u1eb1m \u1edf ph\u00eda tr\u00ean c\u00f9ng c\u1ee7a trang web (nh\u01b0 \u1ea3nh \u0111\u1ea1i di\u1ec7n c\u1ee7a nh\u00e2n v\u1eadt ch\u00ednh trong tr\u00f2 ch\u01a1i), vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 lazy loading c\u00f3 th\u1ec3 g\u00e2y ra \u0111\u1ed9 tr\u1ec5 trong qu\u00e1 tr\u00ecnh t\u1ea3i \u1ea3nh, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i ch\u1edd \u0111\u1ee3i trong th\u1eddi gian ng\u1eafn tr\u00ean m\u1ea1ng c\u00f3 t\u1ed1c \u0111\u1ed9 ch\u1eadm. Do \u0111\u00f3, b\u1ea1n n\u00ean c\u00e2n nh\u1eafc vi\u1ec7c v\u00f4 hi\u1ec7u h\u00f3a t\u00ednh n\u0103ng lazy loading \u0111\u1ed1i v\u1edbi nh\u1eefng \u1ea3nh n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch<\/p>\n\n\n\n
Li\u1ec7u vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c t\u1ec7p CSS\/JS l\u1ea1i v\u1edbi nhau v\u1eabn c\u00f2n c\u1ea7n thi\u1ebft trong m\u00f4i tr\u01b0\u1eddng HTTP\/2 kh\u00f4ng?<\/h3>\n\n\n\n
HTTP\/2 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt \u0111a lu\u1ed3ng (multiplexing), cho ph\u00e9p truy\u1ec1n nhi\u1ec1u t\u1ec7p nh\u1ecf song song tr\u00ean c\u00f9ng m\u1ed9t k\u1ebft n\u1ed1i TCP, t\u1eeb \u0111\u00f3 gi\u1ea3m b\u1edbt nhu c\u1ea7u ph\u1ea3i g\u1ed9p ch\u00fang l\u1ea1i v\u1edbi nhau. Do \u0111\u00f3, trong m\u00f4i tr\u01b0\u1eddng HTTP\/2, l\u1ee3i \u00edch t\u1eeb vi\u1ec7c g\u1ed9p c\u00e1c t\u1ec7p nh\u1ecf l\u1ea1i c\u00f3 ph\u1ea7n gi\u1ea3m \u0111i. Tuy nhi\u00ean, vi\u1ec7c ph\u00e2n chia t\u1ec7p qu\u00e1 nhi\u1ec1u s\u1ebd l\u00e0m t\u0103ng chi ph\u00ed x\u1eed l\u00fd c\u1ee7a tr\u00ecnh duy\u1ec7t khi ph\u00e2n t\u00edch n\u1ed9i dung c\u00e1c t\u1ec7p \u0111\u00f3. Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t l\u00e0 th\u1ef1c hi\u1ec7n vi\u1ec7c g\u1ed9p t\u1ec7p m\u1ed9t c\u00e1ch v\u1eeba ph\u1ea3i \u2013 ch\u1eb3ng h\u1ea1n, g\u1ed9p c\u00e1c t\u1ec7p CSS \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi nhi\u1ec1u plugin th\u00e0nh 1\u20132 t\u1ec7p duy nh\u1ea5t \u2013 \u0111\u1ed3ng th\u1eddi v\u1eabn t\u1eadn d\u1ee5ng t\u1ed1i \u0111a l\u1ee3i th\u1ebf truy\u1ec1n d\u1eef li\u1ec7u song song c\u1ee7a HTTP\/2. Quy\u1ebft \u0111\u1ecbnh cu\u1ed1i c\u00f9ng n\u00ean d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 \u0111o t\u1ed1c \u0111\u1ed9 truy c\u1eadp th\u1ef1c t\u1ebf.<\/p>","protected":false},"excerpt":{"rendered":"
B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p m\u1ed9t h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t WordPress, bao g\u1ed3m c\u00e1c kh\u00eda c\u1ea1nh t\u1eeb vi\u1ec7c l\u01b0u tr\u1eef tr\u00ean m\u00e1y ch\u1ee7, t\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n, t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean t\u0129nh, \u0111\u1ebfn x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u01b0\u1eddng d\u1eabn quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh hi\u1ec3n th\u1ecb n\u1ed9i dung tr\u00ean trang web. N\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c k\u1ef9 thu\u1eadt n\u00e2ng cao nh\u01b0 l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef hi\u1ec7u su\u1ea5t cao, k\u00edch ho\u1ea1t ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef \u0111\u1ed1i t\u01b0\u1ee3ng (object caching), d\u1ecdn d\u1eb9p c\u01a1 s\u1edf d\u1eef li\u1ec7u, \u00e1p d\u1ee5ng c\u01a1 ch\u1ebf t\u1ea3i<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[159,444,401],"knowledge_category":[280],"class_list":["post-12397624","knowledge_post","type-knowledge_post","status-publish","hentry","tag-seo","tag-wordpress-performance","tag-website-speed","knowledge_category-wordpress"],"acf":{"site_seo_keywords":"WordPress\u6027\u80fd\u4f18\u5316,\u7f51\u7ad9\u52a0\u8f7d\u901f\u5ea6,\u7528\u6237\u4f53\u9a8c,\u670d\u52a1\u5668\u6258\u7ba1,\u56fe\u7247\u4f18\u5316,CDN\u52a0\u901f,\u6570\u636e\u5e93\u6e05\u7406,\u4ee3\u7801\u6700\u5c0f\u5316"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12397624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts"}],"about":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/types\/knowledge_post"}],"author":[{"embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":4,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12397624\/revisions"}],"predecessor-version":[{"id":12406111,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12397624\/revisions\/12406111"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12397624"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12397624"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12397624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}