{"id":12399248,"date":"2026-05-20T03:10:11","date_gmt":"2026-05-19T19:10:11","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/wordpress-%e7%bd%91%e7%ab%99%e9%80%9f%e5%ba%a6%e4%bc%98%e5%8c%96%e7%bb%88%e6%9e%81%e6%8c%87%e5%8d%97%ef%bc%9a%e4%bb%8e%e5%88%86%e6%9e%90%e5%88%b0%e6%89%a7%e8%a1%8c%e7%9a%84%e5%ae%8c%e6%95%b4%e7%ad%96\/"},"modified":"2026-06-03T22:04:09","modified_gmt":"2026-06-03T14:04:09","slug":"wordpress-speed-optimization-ultimate-guide-2026","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/wordpress\/wordpress-speed-optimization-ultimate-guide-2026\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u t\u1ed1c \u0111\u1ed9 website WordPress to\u00e0n di\u1ec7n: Chi\u1ebfn l\u01b0\u1ee3c t\u1eeb ph\u00e2n t\u00edch \u0111\u1ebfn tri\u1ec3n khai"},"content":{"rendered":"

T\u1ea1i sao t\u1ed1c \u0111\u1ed9 trang web l\u1ea1i c\u1ef1c k\u1ef3 quan tr\u1ecdng<\/h2>\n\n\n\n

Tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u b\u1ea5t k\u1ef3 h\u00e0nh \u0111\u1ed9ng t\u1ed1i \u01b0u h\u00f3a n\u00e0o, vi\u1ec7c hi\u1ec3u r\u00f5 t\u00e1c \u0111\u1ed9ng c\u1ee7a t\u1ed1c \u0111\u1ed9 trang web \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean c\u1ea7n th\u1ef1c hi\u1ec7n. T\u1ed1c \u0111\u1ed9 t\u1ea3i trang web l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, th\u1ee9 h\u1ea1ng tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm v\u00e0 t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i. M\u1ed9t trang web t\u1ea3i ch\u1eadm s\u1ebd khi\u1ebfn t\u1ef7 l\u1ec7 ng\u01b0\u1eddi d\u00f9ng r\u1eddi trang t\u0103ng v\u1ecdt; c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u01b0 Google \u0111\u00e3 c\u00f4ng b\u1ed1 r\u00f5 r\u00e0ng r\u1eb1ng t\u1ed1c \u0111\u1ed9 trang l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong thu\u1eadt to\u00e1n x\u1ebfp h\u1ea1ng c\u1ee7a h\u1ecd. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi s\u1eed d\u1ee5ng WordPress \u0111\u1ec3 x\u00e2y d\u1ef1ng trang web, m\u1eb7c d\u00f9 n\u1ec1n t\u1ea3ng n\u00e0y r\u1ea5t m\u1ea1nh m\u1ebd, nh\u01b0ng c\u1ea5u h\u00ecnh m\u1eb7c \u0111\u1ecbnh v\u00e0 c\u00e1c plugin, theme ph\u1ee9c t\u1ea1p c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh r\u00e0o c\u1ea3n \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t trang web.<\/p>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 kh\u00f4ng ch\u1ec9 l\u00e0 vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh \u1edf c\u1ea5p \u0111\u1ed9 k\u1ef9 thu\u1eadt, m\u00e0 c\u00f2n l\u00e0 m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c quan tr\u1ecdng. N\u00f3 li\u00ean quan \u0111\u1ebfn to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh t\u1eeb ph\u00eda m\u00e1y ch\u1ee7 \u0111\u1ebfn ph\u00eda ng\u01b0\u1eddi d\u00f9ng, bao g\u1ed3m th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a m\u00e1y ch\u1ee7, th\u1ee9 t\u1ef1 t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean, v\u00e0 hi\u1ec7u su\u1ea5t th\u1ef1c thi m\u00e3 ngu\u1ed3n. M\u1ed7i l\u1ea7n t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec1u gi\u00fap trang web \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb nhanh h\u01a1n v\u00e0 t\u0103ng \u0111\u1ed9 tr\u01a1n tru trong qu\u00e1 tr\u00ecnh t\u01b0\u01a1ng t\u00e1c v\u1edbi ng\u01b0\u1eddi d\u00f9ng. \u0110i\u1ec1u n\u00e0y gi\u00fap n\u00e2ng cao th\u1eddi gian ng\u01b0\u1eddi d\u00f9ng \u1edf trang web, m\u1ee9c \u0111\u1ed9 h\u1ecd xem n\u1ed9i dung tr\u00ean trang, v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 t\u1ef7 l\u1ec7 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u1ee5c ti\u00eau kinh doanh.<\/p>\n\n\n\n

Ch\u1ea9n \u0111o\u00e1n to\u00e0n di\u1ec7n t\u1ed1c \u0111\u1ed9 trang web<\/h2>\n\n\n\n

Tr\u01b0\u1edbc khi b\u1eaft tay v\u00e0o t\u1ed1i \u01b0u h\u00f3a, c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n m\u1ed9t cu\u1ed9c ch\u1ea9n \u0111o\u00e1n ch\u00ednh x\u00e1c \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u1ee7a c\u00e1c \u0111i\u1ec3m ngh\u1ebdn v\u1ec1 hi\u1ec7u su\u1ea5t.<\/p>\n

\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u h\u00f3a website WordPress: T\u1eeb t\u1ed1c \u0111\u1ed9 t\u1ea3i \u0111\u1ebfn c\u1ea3i thi\u1ec7n Core Web Vitals<\/a>\u3002<\/p>\n\n\n\n\n

S\u1eed d\u1ee5ng c\u00e1c ch\u1ec9 s\u1ed1 trang web c\u1ed1t l\u00f5i \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t.<\/h3>\n\n\n\n

Google\u2019s Core Web Vitals l\u00e0 ti\u00eau chu\u1ea9n v\u00e0ng cho vi\u1ec7c \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t trang web hi\u1ec7n \u0111\u1ea1i. N\u00f3 t\u1eadp trung v\u00e0o ba ch\u1ec9 s\u1ed1 ch\u00ednh: Th\u1eddi gian v\u1ebd n\u1ed9i dung t\u1ed1i \u0111a (Maximum Content Drawing Time).(LCP)<\/code> \u0110\u1ec3 \u0111\u00e1nh gi\u00e1 t\u1ed1c \u0111\u1ed9 t\u1ea3i trang \u0111\u01b0\u1ee3c c\u1ea3m nh\u1eadn b\u1edfi ng\u01b0\u1eddi d\u00f9ng, ch\u00fang ta c\u1ea7n xem x\u00e9t \u0111\u1ebfn \u0111\u1ed9 tr\u1ec5 khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp d\u1eef li\u1ec7u l\u1ea7n \u0111\u1ea7u ti\u00ean.(FID)<\/code> \u0110\u00e1nh gi\u00e1 t\u00ednh t\u01b0\u01a1ng t\u00e1c, s\u1ef1 thay \u0111\u1ed5i b\u1ed1 c\u1ee5c t\u00edch l\u0169y(CLS)<\/code> \u0110\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng khi xem n\u1ed9i dung tr\u00ean trang web, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 PageSpeed Insights c\u1ee7a Google ho\u1eb7c b\u00e1o c\u00e1o Core Web Vitals trong Search Console. Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 hi\u1ec7u su\u1ea5t trang web, gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. Vi\u1ec7c hi\u1ec3u r\u00f5 \u00fd ngh\u0129a c\u1ee7a c\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y c\u00f9ng c\u00e1c ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c \u0111\u1ec1 ra (v\u00ed d\u1ee5: th\u1eddi gian ph\u1ea3n h\u1ed3i \u0111\u1ea7u ti\u00ean c\u1ee7a trang web \u2013 LCP \u2013 n\u00ean d\u01b0\u1edbi 2,5 gi\u00e2y) l\u00e0 b\u01b0\u1edbc c\u01a1 b\u1ea3n trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng chi\u1ebfn l\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a trang web.<\/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

Ph\u00e2n t\u00edch s\u00e2u v\u1ec1 c\u00e1c c\u00f4ng c\u1ee5 b\u00e1o c\u00e1o hi\u1ec7u n\u0103ng<\/h3>\n\n\n\n

Ngo\u00e0i c\u00e1c ch\u1ec9 s\u1ed1 c\u1ed1t l\u00f5i, ch\u00fang ta c\u00f2n c\u1ea7n s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 \u0111\u1ec3 ti\u1ebfn h\u00e0nh ph\u00e2n t\u00edch s\u00e2u h\u01a1n. C\u00e1c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n Lighthouse v\u00e0 Network trong Chrome DevTools c\u00f3 th\u1ec3 cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 hi\u1ec7u su\u1ea5t trang web, bao g\u1ed3m c\u00e1c t\u00e0i nguy\u00ean g\u00e2y c\u1ea3n tr\u1edf qu\u00e1 tr\u00ecnh hi\u1ec3n th\u1ecb n\u1ed9i dung, c\u00e1c \u0111o\u1ea1n JavaScript kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, nh\u1eefng h\u00ecnh \u1ea3nh c\u00f3 k\u00edch th\u01b0\u1edbc qu\u00e1 l\u1edbn, v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c. C\u00e1c c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn nh\u01b0 GTmetrix v\u00e0 WebPageTest c\u00f3 th\u1ec3 cung c\u1ea5p c\u00e1c b\u00e1o c\u00e1o v\u1ec1 qu\u00e1 tr\u00ecnh t\u1ea3i t\u00e0i nguy\u00ean t\u1eeb nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau tr\u00ean th\u1ebf gi\u1edbi, gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 th\u1ee9 t\u1ef1 v\u00e0 m\u1ed1i quan h\u1ec7 ph\u1ee5 thu\u1ed9c gi\u1eefa c\u00e1c t\u00e0i nguy\u00ean, t\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c nguy\u00ean nh\u00e2n l\u00e0m ch\u1eadm trang web.<\/p>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7 v\u00e0 h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh<\/h2>\n\n\n\n

C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng n\u1ec1n t\u1ea3ng c\u1ee7a m\u1ed9t trang web ch\u00ednh l\u00e0 n\u1ec1n t\u1ea3ng cho hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3. M\u1ed9t m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 l\u00e0m cho m\u1ecdi n\u1ed7 l\u1ef1c t\u1ed1i \u01b0u h\u00f3a ph\u00eda tr\u01b0\u1edbc (front-end) tr\u1edf n\u00ean v\u00f4 \u00edch.<\/p>\n\n\n\n

L\u1ef1a ch\u1ecdn g\u00f3i hosting hi\u1ec7u su\u1ea5t cao<\/h3>\n\n\n\n

Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c m\u00e1y ch\u1ee7 chia s\u1ebb th\u01b0\u1eddng l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra t\u00ecnh tr\u1ea1ng trang web WordPress ch\u1ea1y ch\u1eadm. H\u00e3y c\u00e2n nh\u1eafc n\u00e2ng c\u1ea5p l\u00ean m\u00e1y ch\u1ee7 d\u00e0nh ri\u00eang cho WordPress, VPS (Virtual Private Server) ho\u1eb7c d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef tr\u00ean n\u1ec1n t\u1ea3ng \u0111\u00e1m m\u00e2y. Nh\u1eefng gi\u1ea3i ph\u00e1p n\u00e0y th\u01b0\u1eddng cung c\u1ea5p ngu\u1ed3n l\u1ef1c ph\u1ea7n c\u1ee9ng t\u1ed1t h\u01a1n, c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a d\u00e0nh ri\u00eang cho WordPress (ch\u1eb3ng h\u1ea1n nh\u01b0 LEMP ho\u1eb7c LAMP), c\u00f9ng v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 l\u01b0u tr\u1eef d\u1eef li\u1ec7u t\u00edch h\u1ee3p s\u1eb5n. \u0110\u1ea3m b\u1ea3o r\u1eb1ng m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 phi\u00ean b\u1ea3n PHP m\u1edbi nh\u1ea5t (ch\u1eb3ng h\u1ea1n PHP 8.0 tr\u1edf l\u00ean) v\u00e0 \u0111\u00e3 b\u1eadt t\u00ednh n\u0103ng OPcache; \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t th\u1ef1c thi m\u00e3 ngu\u1ed3n PHP.<\/p>\n\n\n\n

Th\u1ef1c hi\u1ec7n chi\u1ebfn l\u01b0\u1ee3c caching hi\u1ec7u qu\u1ea3<\/h3>\n\n\n\n

\u1ede c\u1ea5p \u0111\u1ed9 m\u00e1y ch\u1ee7, vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u theo \u0111\u1ed1i t\u01b0\u1ee3ng (object caching) l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110\u1ed1i v\u1edbi WordPress, r\u1ea5t \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng Redis ho\u1eb7c Memcached nh\u01b0 c\u00e1c c\u00f4ng c\u1ee5 l\u01b0u tr\u1eef d\u1eef li\u1ec7u theo \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 t\u00ednh b\u1ec1n v\u1eefng (persistent object caching). Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y gi\u00fap l\u01b0u k\u1ebft qu\u1ea3 truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n t\u00ednh to\u00e1n ph\u1ee9c t\u1ea1p trong b\u1ed9 nh\u1edb, t\u1eeb \u0111\u00f3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ea3i l\u00ean c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 th\u1eddi gian th\u1ef1c hi\u1ec7n c\u00e1c l\u1ec7nh PHP. Nhi\u1ec1u d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef cao c\u1ea5p \u0111\u00e3 t\u00edch h\u1ee3p s\u1eb5n t\u00ednh n\u0103ng n\u00e0y. Ngo\u00e0i ra, b\u1ea1n c\u0169ng n\u00ean c\u1ea5u h\u00ecnh b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a tr\u00ecnh duy\u1ec7t (browser cache) \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp trang web. .htaccess<\/code> Ho\u1eb7c trong t\u1ec7p c\u1ea5u h\u00ecnh c\u1ee7a Nginx, h\u00e3y thi\u1ebft l\u1eadp c\u00e1c ti\u00eau \u0111\u1ec1 th\u00f4ng b\u00e1o h\u1ebft h\u1ea1n (expiration headers) cho c\u00e1c t\u00e0i nguy\u00ean t\u0129nh. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp l\u1ea1i trang web c\u00f3 th\u1ec3 t\u1ea3i trang m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/p>\n

\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u h\u00f3a WordPress t\u1ed1i th\u01b0\u1ee3ng: N\u00e2ng cao to\u00e0n di\u1ec7n hi\u1ec7u su\u1ea5t website t\u1eeb t\u1ed1c \u0111\u1ed9 \u0111\u1ebfn SEO<\/a>\u3002<\/p>\n\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n c\u1ed1t l\u00f5i v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/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\u00f9ng v\u1edbi t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe c\u1ee7a c\u01a1 s\u1edf d\u1eef li\u1ec7u (database), \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

D\u1ecdn d\u1eb9p v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/h3>\n\n\n\n

Theo th\u1eddi gian, c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a WordPress s\u1ebd t\u00edch l\u0169y nhi\u1ec1u 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 h\u1eefu \u00edch, v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn t\u1ea1m th\u1eddi \u0111\u00e3 h\u1ebft h\u1ea1n. B\u1ea1n n\u00ean th\u01b0\u1eddng xuy\u00ean d\u00f9ng c\u00e1c plugin nh\u01b0 WP-Optimize ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c l\u1ec7nh SQL \u0111\u1ec3 d\u1ecdn d\u1eb9p c\u01a1 s\u1edf d\u1eef li\u1ec7u. \u0110\u1ed3ng th\u1eddi, c\u0169ng c\u1ea7n t\u1ed1i \u01b0u h\u00f3a c\u1ea5u tr\u00fac c\u00e1c b\u1ea3ng trong c\u01a1 s\u1edf d\u1eef li\u1ec7u. OPTIMIZE TABLE<\/code> C\u00e1c c\u00e2u l\u1ec7nh n\u00e0y c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m b\u1edbt t\u00ecnh tr\u1ea1ng \u201cm\u1ea3nh v\u1ee5n d\u1eef li\u1ec7u\u201d (data fragmentation) trong b\u1ed9 nh\u1edb, t\u1eeb \u0111\u00f3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c thao t\u00e1c truy v\u1ea5n. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng \u1edf ph\u00eda m\u00e1y ch\u1ee7 (backend) c\u0169ng nh\u01b0 hi\u1ec7u n\u0103ng c\u1ee7a m\u1ed9t s\u1ed1<\/p>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n c\u1ee7a ch\u1ee7 \u0111\u1ec1 (theme) v\u00e0 c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin).<\/h3>\n\n\n\n

H\u00e3y ki\u1ec3m tra v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a t\u1ea5t c\u1ea3 c\u00e1c plugin kh\u00f4ng c\u1ea7n thi\u1ebft. M\u1ed7i plugin \u0111\u1ec1u t\u1ea1o th\u00eam c\u00e1c y\u00eau c\u1ea7u HTTP, c\u0169ng nh\u01b0 m\u00e3 PHP v\u00e0 JavaScript. H\u00e3y ch\u1ecdn m\u1ed9t giao di\u1ec7n (theme) c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1eb9 v\u00e0 \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh m\u1ed9t c\u00e1ch t\u1ed1t (\u0111\u01b0\u1ee3c m\u00e3 h\u00f3a m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3). Ki\u1ec3m tra c\u1ea9n th\u1eadn c\u00e1c t\u00ednh n\u0103ng v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a giao di\u1ec7n \u0111\u00f3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u s\u1eed d\u1ee5ng c\u1ee7a b\u1ea1n. functions.php<\/code> H\u00e3y lo\u1ea1i b\u1ecf c\u00e1c truy v\u1ea5n kh\u00f4ng hi\u1ec7u qu\u1ea3 v\u00e0 c\u00e1c v\u00f2ng l\u1eb7p ch\u01b0a \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a kh\u1ecfi t\u1ec7p tin. H\u00e3y c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng c\u00e1c plugin qu\u1ea3n l\u00fd \u0111o\u1ea1n m\u00e3 \u0111\u1ec3 thay th\u1ebf vi\u1ec7c thay \u0111\u1ed5i tr\u1ef1c ti\u1ebfp c\u00e1c t\u1ec7p tin ch\u1ee7 \u0111\u1ec1 (theme files), nh\u1eb1m t\u0103ng t\u00ednh d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 c\u1eadp nh\u1eadt. \u0110\u1ed1i v\u1edbi c\u00e1c t\u00ednh n\u0103ng t\u00f9y ch\u1ec9nh, \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e3 ngu\u1ed3n tu\u00e2n theo c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t v\u00e0 tr\u00e1nh th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c kh\u00f4ng c\u1ea7n thi\u1ebft m\u1ed7i khi trang \u0111\u01b0\u1ee3c t\u1ea3i.<\/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

T\u1ed1i \u01b0u h\u00f3a t\u1ea3i t\u00e0i nguy\u00ean front-end<\/h2>\n\n\n\n

Giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (frontend) l\u00e0 ph\u1ea7n m\u00e0 ng\u01b0\u1eddi d\u00f9ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp; vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean nh\u01b0 h\u00ecnh \u1ea3nh, CSS, JavaScript, v.v., l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a h\u00ecnh \u1ea3nh v\u00e0 c\u00e1c \u0111\u1ecbnh d\u1ea1ng th\u1ebf h\u1ec7 m\u1edbi<\/h3>\n\n\n\n

H\u00ecnh \u1ea3nh th\u01b0\u1eddng chi\u1ebfm nhi\u1ec1u dung l\u01b0\u1ee3ng nh\u1ea5t tr\u00ean trang web. Tr\u01b0\u1edbc h\u1ebft, h\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c h\u00ecnh \u1ea3nh \u0111\u1ec1u \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00e9n. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ti\u1ec7n \u00edch nh\u01b0 ShortPixel, Imagify \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c n\u00e0y m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng, ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 Squoosh trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng trang web. Th\u1ee9 hai, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ecbnh d\u1ea1ng h\u00ecnh \u1ea3nh th\u1ebf h\u1ec7 m\u1edbi (ch\u1eb3ng h\u1ea1n nh\u01b0 WebP) \u0111\u1ec3 gi\u1ea3m dung l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. <\/code> C\u00e1c y\u1ebfu t\u1ed1 (elements) cung c\u1ea5p gi\u1ea3i ph\u00e1p d\u1ef1 ph\u00f2ng (backup options) trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n thi\u1ebft. Cu\u1ed1i c\u00f9ng, h\u00e3y \u00e1p d\u1ee5ng ch\u1ee9c n\u0103ng t\u1ea3i \u1ea3nh theo y\u00eau c\u1ea7u (lazy loading), sao cho nh\u1eefng \u1ea3nh n\u1eb1m ngo\u00e0i ph\u1ea1m vi hi\u1ec3n th\u1ecb (viewport) ch\u1ec9 \u0111\u01b0\u1ee3c t\u1ea3i khi th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft. WordPress phi\u00ean b\u1ea3n 5.5 tr\u1edf l\u00ean \u0111\u00e3 t\u00edch h\u1ee3p s\u1eb5n ch\u1ee9c n\u0103ng t\u1ea3i<\/p>\n\n\n\n

H\u1ee3p nh\u1ea5t v\u00e0 t\u1ed1i gi\u1ea3n CSS v\u00e0 JavaScript<\/h3>\n\n\n\n

Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u HTTP l\u00e0 nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i \u0111\u1ec3 t\u0103ng t\u1ed1c trang web. H\u00e3y s\u1eed d\u1ee5ng c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (nh\u01b0 Autoptimize, WP Rocket) ho\u1eb7c c\u00e1c c\u00f4ng c\u1ee5 x\u00e2y d\u1ef1ng (nh\u01b0 Webpack) \u0111\u1ec3 g\u1ed9p nhi\u1ec1u t\u1ec7p CSS v\u00e0 JS l\u1ea1i v\u1edbi nhau, \u0111\u1ed3ng th\u1eddi ti\u1ebfn h\u00e0nh t\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n (lo\u1ea1i b\u1ecf kho\u1ea3ng tr\u1eafng, ch\u00fa th\u00edch v\u00e0 n\u00e9n m\u00e3). Ngo\u00e0i ra, h\u00e3y t\u1ea3i c\u00e1c t\u1ec7p CSS kh\u00f4ng quan tr\u1ecdng m\u1ed9t c\u00e1ch \u0111\u1ed3ng b\u1ed9 (asynchronously) ho\u1eb7c \u0111\u01b0a ch\u00fang v\u00e0o ph\u1ea7n \u0111\u1ea7u c\u1ee7a trang HTML (inline) \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng trang web b\u1ecb ch\u1eb7n trong qu\u00e1 tr\u00ecnh hi\u1ec3n th\u1ecb. \u0110\u1ed1i v\u1edbi JavaScript, h\u00e3y s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n n\u1eefa. async<\/code> \u6216 defer<\/code> B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh (properties) \u0111\u1ec3 thay \u0111\u1ed5i c\u00e1ch th\u1ee9c t\u1ea3i v\u00e0 th\u1ef1c thi c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0y, nh\u1eb1m tr\u00e1nh g\u00e2y tr\u00ec ho\u00e3n trong qu\u00e1 tr\u00ecnh hi\u1ec3n th\u1ecb trang web (rendering).<\/p>\n

\u0110\u1ecdc th\u00eam H\u01b0\u1edbng d\u1eabn t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t WordPress to\u00e0n di\u1ec7n: Ph\u00e2n t\u00edch chi ti\u1ebft t\u1eeb t\u1ed1c \u0111\u1ed9 t\u1ea3i \u0111\u1ebfn c\u00e1c ch\u1ec9 s\u1ed1 Core Web Vitals<\/a>\u3002<\/p>\n\n\n\n\n

T\u1eadn d\u1ee5ng m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung \u0111\u1ec3 t\u0103ng t\u1ed1c<\/h3>\n\n\n\n

M\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung(CDN)<\/code> B\u1eb1ng c\u00e1ch ph\u00e2n ph\u1ed1i c\u00e1c t\u00e0i nguy\u00ean t\u0129nh c\u1ee7a b\u1ea1n (h\u00ecnh \u1ea3nh, CSS, JS, ph\u00f4ng ch\u1eef) \u0111\u1ebfn c\u00e1c m\u00e1y ch\u1ee7 tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp ch\u00fang t\u1eeb m\u00e1y ch\u1ee7 g\u1ea7n nh\u1ea5t theo v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a h\u1ecd, t\u1eeb \u0111\u00f3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1ec5 trong vi\u1ec7c truy c\u1eadp trang web. \u0110i\u1ec1u n\u00e0y l\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi nh\u1eefng trang web h\u01b0\u1edbng t\u1edbi \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1n gi\u1ea3 to\u00e0n c\u1ea7u. Cloudflare, StackPath ho\u1eb7c BunnyCDN \u0111\u1ec1u l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn; ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p t\u1ed1t v\u1edbi c\u00e1c plugin t\u0103ng t\u1ed1c trang web c\u1ee7a WordPress.<\/p>\n\n\n\n

T\u00f3m l\u1ea1i<\/h2>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 trang web WordPress l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh mang t\u00ednh h\u1ec7 th\u1ed1ng, \u0111\u00f2i h\u1ecfi ph\u1ea3i xem x\u00e9t v\u00e0 \u0111i\u1ec1u ch\u1ec9nh to\u00e0n di\u1ec7n t\u1eeb kh\u00e2u ch\u1ea9n \u0111o\u00e1n, m\u00e1y ch\u1ee7, m\u00e3 ngu\u1ed3n cho \u0111\u1ebfn giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng (frontend). 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; \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i hi\u1ec3u r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1eebng kh\u00e2u v\u00e0 li\u00ean t\u1ee5c theo d\u00f5i, ki\u1ec3m th\u1eed c\u0169ng nh\u01b0 c\u1eadp nh\u1eadt c\u00e1c thay \u0111\u1ed5i. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng chi\u1ebfn l\u01b0\u1ee3c to\u00e0n di\u1ec7n \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong b\u00e0i vi\u1ebft n\u00e0y, t\u1eeb vi\u1ec7c ph\u00e2n t\u00edch \u0111\u1ebfn th\u1ef1c hi\u1ec7n, b\u1ea1n c\u00f3 th\u1ec3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t 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 b\u1ea3ng x\u1ebfp h\u1ea1ng t\u00ecm ki\u1ebfm v\u00e0 k\u1ebft qu\u1ea3 kinh doanh t\u1ed1t h\u01a1n.<\/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

FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 xem trang web WordPress c\u1ee7a t\u00f4i c\u00f3 \u0111\u1ee7 nhanh hay kh\u00f4ng?<\/h3>\n\n\n\n

B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 PageSpeed Insights c\u1ee7a Google \u0111\u1ec3 ti\u1ebfn h\u00e0nh ki\u1ec3m tra mi\u1ec5n ph\u00ed. C\u00f4ng c\u1ee5 n\u00e0y s\u1ebd \u0111\u00e1nh gi\u00e1 trang web c\u1ee7a b\u1ea1n tr\u00ean c\u1ea3 thi\u1ebft b\u1ecb di \u0111\u1ed9ng v\u00e0 m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n, \u0111\u1ed3ng th\u1eddi \u0111\u01b0a ra c\u00e1c g\u1ee3i \u00fd c\u1ee5 th\u1ec3 v\u1ec1 c\u00e1ch t\u1ed1i \u01b0u h\u00f3a. M\u1ee5c ti\u00eau ch\u00ednh l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c ch\u1ec9 s\u1ed1 quan tr\u1ecdng c\u1ee7a trang web \u0111\u1ec1u \u0111\u1ea1t m\u1ee9c \u201ct\u1ed1t\u201d. N\u00f3i chung, th\u1eddi gian t\u1ea3i trang tr\u00ean c\u1ea3 hai lo\u1ea1i thi\u1ebft b\u1ecb n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t d\u01b0\u1edbi 3 gi\u00e2y.<\/p>\n\n\n\n

Vi\u1ec7c s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u plugin t\u1ed1i \u01b0u h\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m (cache plugins) c\u00f3 th\u1ec3 g\u00e2y xung \u0111\u1ed9t gi\u1eefa ch\u00fang kh\u00f4ng?<\/h3>\n\n\n\n

Ch\u1eafc ch\u1eafn r\u1ed3i. Vi\u1ec7c c\u00f9ng l\u00fac s\u1eed d\u1ee5ng nhi\u1ec1u plugin l\u01b0u tr\u1eef \u0111\u1ec7m c\u00f3 ch\u1ee9c n\u0103ng tr\u00f9ng l\u1eb7p (v\u00ed d\u1ee5: c\u1ea3 hai \u0111\u1ec1u cung c\u1ea5p ch\u1ee9c n\u0103ng l\u01b0u tr\u1eef trang web) l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i tr\u00ean trang web ho\u1eb7c hi\u1ec7n t\u01b0\u1ee3ng m\u00e0n h\u00ecnh tr\u1eafng. Nh\u1eefng plugin n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1eefng quy t\u1eafc l\u01b0u tr\u1eef \u0111\u1ec7m m\u00e2u thu\u1eabn v\u1edbi nhau, th\u1eadm ch\u00ed l\u00e0m gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a trang web. Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t l\u00e0 ch\u1ecdn ch\u1ec9 m\u1ed9t plugin l\u01b0u tr\u1eef \u0111\u1ec7m ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 \u0111\u1ea7y \u0111\u1ee7 ch\u1ee9c n\u0103ng (nh\u01b0 WP Rocket, W3 Total Cache ho\u1eb7c LiteSpeed Cache), sau \u0111\u00f3 c\u1ea5u h\u00ecnh \u0111\u00fang c\u00e1ch t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh n\u0103ng c\u1ee7a n\u00f3.<\/p>\n\n\n\n

Vi\u1ec7c n\u00e2ng c\u1ea5p phi\u00ean b\u1ea3n PHP c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a trang web kh\u00f4ng?<\/h3>\n\n\n\n

T\u00e1c \u0111\u1ed9ng r\u1ea5t \u0111\u00e1ng k\u1ec3. Phi\u00ean b\u1ea3n m\u1edbi c\u1ee7a PHP (ch\u1eb3ng h\u1ea1n nh\u01b0 series PHP 8.x) c\u00f3 s\u1ef1 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 v\u1ec1 hi\u1ec7u su\u1ea5t so v\u1edbi c\u00e1c phi\u00ean b\u1ea3n c\u0169 (nh\u01b0 PHP 5.6 ho\u1eb7c 7.2); \u0111\u00f4i khi m\u1ee9c t\u0103ng hi\u1ec7u su\u1ea5t c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn 50% ho\u1eb7c cao h\u01a1n n\u1eefa. Tr\u01b0\u1edbc khi n\u00e2ng c\u1ea5p, h\u00e3y \u0111\u1ea3m b\u1ea3o ki\u1ec3m tra xem ch\u1ee7 \u0111\u1ec1 (theme) v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c plugin c\u1ee7a b\u1ea1n c\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi phi\u00ean b\u1ea3n m\u1edbi hay kh\u00f4ng trong m\u00f4i tr\u01b0\u1eddng staging (m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m).<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa CDN mi\u1ec5n ph\u00ed v\u00e0 CDN tr\u1ea3 ph\u00ed l\u00e0 g\u00ec?<\/h3>\n\n\n\n

CDN mi\u1ec5n ph\u00ed (ch\u1eb3ng h\u1ea1n nh\u01b0 phi\u00ean b\u1ea3n mi\u1ec5n ph\u00ed c\u1ee7a Cloudflare) cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng t\u0103ng t\u1ed1c v\u00e0 b\u1ea3o m\u1eadt c\u01a1 b\u1ea3n, nh\u01b0ng th\u01b0\u1eddng c\u00f3 s\u1ed1 l\u01b0\u1ee3ng node h\u1ea1n ch\u1ebf, c\u00f9ng v\u1edbi nh\u1eefng h\u1ea1n ch\u1ebf v\u1ec1 ch\u1ee9c n\u0103ng v\u00e0 d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3. CDN tr\u1ea3 ph\u00ed th\u00ec mang \u0111\u1ebfn m\u1ea1ng l\u01b0\u1edbi node to\u00e0n c\u1ea7u r\u1ed9ng l\u1edbn h\u01a1n, b\u0103ng th\u00f4ng cao h\u01a1n, gi\u1edbi h\u1ea1n l\u01b0\u1ee3ng y\u00eau c\u1ea7u l\u1edbn h\u01a1n, c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao h\u01a1n (nh\u01b0 t\u1ed1i \u01b0u h\u00f3a h\u00ecnh \u1ea3nh, quy t\u1eafc x\u1eed l\u00fd d\u1eef li\u1ec7u t\u1ea1i \u201cedge computing\u201d, ki\u1ec3m so\u00e1t \u0111\u1ec7m d\u1eef li\u1ec7u chi ti\u1ebft h\u01a1n), c\u00f9ng v\u1edbi d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt \u01b0u ti\u00ean. \u0110\u1ed1i v\u1edbi c\u00e1c trang web quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng kinh doanh ho\u1eb7c c\u00f3 l\u01b0\u1ee3ng truy c\u1eadp l\u1edbn, vi\u1ec7c s\u1eed d\u1ee5ng CDN tr\u1ea3 ph\u00ed l\u00e0 m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 \u0111\u00e1ng gi\u00e1.<\/p>\n\n\n\n

Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 khi\u1ebfn t\u1ed1c \u0111\u1ed9 trang web ch\u1eadm h\u01a1n sau khi t\u1ed1i \u01b0u h\u00f3a l\u00e0 g\u00ec?<\/h3>\n\n\n\n

\u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra do l\u1ed7i c\u1ea5u h\u00ecnh ho\u1eb7c xung \u0111\u1ed9t gi\u1eefa c\u00e1c th\u00e0nh ph\u1ea7n trong h\u1ec7 th\u1ed1ng. C\u00e1c nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 bao g\u1ed3m: C\u00e1c quy t\u1eafc l\u01b0u tr\u1eef \u0111\u1ec7m (cache) \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh kh\u00f4ng \u0111\u00fang c\u00e1ch, khi\u1ebfn n\u1ed9i dung \u0111\u1ed9ng b\u1ecb l\u01b0u tr\u1eef sai c\u00e1ch ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u00fang l\u00fac; xung \u0111\u1ed9t gi\u1eefa c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng (plugin), \u0111\u1eb7c bi\u1ec7t l\u00e0 gi\u1eefa c\u00e1c ti\u1ec7n \u00edch li\u00ean quan \u0111\u1ebfn t\u1ed1i \u01b0u h\u00f3a v\u00e0 l\u01b0u tr\u1eef; c\u00e0i \u0111\u1eb7t CDN kh\u00f4ng ch\u00ednh x\u00e1c, d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u1ea3i t\u00e0i nguy\u00ean t\u1eeb ngu\u1ed3n g\u1ed1c th\u1ea5t b\u1ea1i ho\u1eb7c t\u1ea7n su\u1ea5t l\u01b0u tr\u1eef qu\u00e1 th\u1ea5p. Khi g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng n\u00e0y, b\u1ea1n n\u00ean t\u1eebng b\u01b0\u1edbc t\u1eaft c\u00e1c t\u00ednh n\u0103ng t\u1ed1i \u01b0u h\u00f3a m\u1edbi \u0111\u01b0\u1ee3c b\u1eadt, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh ki\u1ec3m th\u1eed \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ng<\/p>","protected":false},"excerpt":{"rendered":"

B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng to\u00e0n di\u1ec7n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c nh\u1eb1m t\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 trang web WordPress, bao g\u1ed3m t\u1ea7m quan tr\u1ecdng c\u1ee7a t\u1ed1c \u0111\u1ed9 trang web, c\u00f4ng c\u1ee5 ch\u1ea9n \u0111o\u00e1n Core Web Vitals, t\u1ed1i \u01b0u h\u00f3a m\u00e1y ch\u1ee7 v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef, d\u1ecdn d\u1eb9p c\u01a1 s\u1edf d\u1eef li\u1ec7u, t\u1ed1i \u01b0u h\u00f3a m\u00e3 ngu\u1ed3n c\u1ee7a c\u00e1c theme v\u00e0 plugin, c\u0169ng nh\u01b0 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh t\u1ea3i c\u00e1c t\u00e0i nguy\u00ean front-end. Nh\u1eefng chi\u1ebfn l\u01b0\u1ee3c n\u00e0y gi\u00fap c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean web n\u00e2ng cao hi\u1ec7u su\u1ea5t trang web m\u1ed9t c\u00e1ch to\u00e0n di\u1ec7n, t\u1eeb vi\u1ec7c ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edf<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1929,4018,2066,2131,455],"knowledge_category":[280],"class_list":["post-12399248","knowledge_post","type-knowledge_post","status-publish","hentry","tag-wordpress","tag-performance-diagnostics","tag-server-cache","tag-2131","tag-site-speed-optimization","knowledge_category-wordpress"],"acf":{"site_seo_keywords":"WordPress\u901f\u5ea6\u4f18\u5316,\u7f51\u7ad9\u6027\u80fd\u4f18\u5316,Core Web Vitals,\u670d\u52a1\u5668\u7f13\u5b58,\u56fe\u7247\u4f18\u5316,\u6570\u636e\u5e93\u6e05\u7406,\u524d\u7aef\u8d44\u6e90\u52a0\u8f7d\u4f18\u5316,WordPress\u4e3b\u673a\u9009\u62e9"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12399248","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\/12399248\/revisions"}],"predecessor-version":[{"id":12404499,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12399248\/revisions\/12404499"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12399248"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12399248"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12399248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}