{"id":12372156,"date":"2026-03-16T10:02:49","date_gmt":"2026-03-16T02:02:49","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e5%8a%a0%e9%80%9f%e5%85%a8%e7%90%83%e7%bd%91%e7%bb%9c%ef%bc%9a%e6%b7%b1%e5%ba%a6%e8%a7%a3%e6%9e%90-cdn-%e6%8a%80%e6%9c%af%e5%8e%9f%e7%90%86%e4%b8%8e%e6%a0%b8%e5%bf%83%e4%bc%98%e5%8a%bf\/"},"modified":"2026-03-16T10:12:15","modified_gmt":"2026-03-16T02:12:15","slug":"accelerate-global-network-cdn-technology-principles-core-advantages","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/cdn\/accelerate-global-network-cdn-technology-principles-core-advantages\/","title":{"rendered":"T\u0103ng t\u1ed1c m\u1ea1ng to\u00e0n c\u1ea7u: Ph\u00e2n t\u00edch s\u00e2u v\u1ec1 nguy\u00ean l\u00fd k\u1ef9 thu\u1eadt v\u00e0 l\u1ee3i th\u1ebf c\u1ed1t l\u00f5i c\u1ee7a CDN"},"content":{"rendered":"

CDN l\u00e0 g\u00ec?<\/h2>\n\n\n\n

Khi b\u1ea1n truy c\u1eadp m\u1ed9t trang web qu\u1ed1c t\u1ebf, xem video \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao ho\u1eb7c t\u1ea3i xu\u1ed1ng c\u00e1c t\u1ec7p tin l\u1edbn, c\u00f3 bao gi\u1edd b\u1ea1n ng\u1ea1c nhi\u00ean tr\u01b0\u1edbc t\u1ed1c \u0111\u1ed9 t\u1ea3i nhanh ch\u00f3ng c\u1ee7a ch\u00fang, ngay c\u1ea3 khi b\u1ea1n \u0111ang \u1edf c\u00e1ch xa h\u00e0ng ngh\u00ecn d\u1eb7m kh\u00f4ng? \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 nh\u1edd v\u00e0o s\u1ef1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (Content Delivery Network \u2013 CDN). CDN l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng l\u1edbn g\u1ed3m nhi\u1ec1u trung t\u00e2m d\u1eef li\u1ec7u (hay c\u00f2n g\u1ecdi l\u00e0 \u201cn\u00fat bi\u00ean\u201d) \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi. \u00dd t\u01b0\u1edfng c\u1ed1t l\u00f5i c\u1ee7a CDN l\u00e0 l\u01b0u tr\u1eef c\u00e1c n\u1ed9i dung t\u0129nh c\u1ee7a trang web ho\u1eb7c \u1ee9ng d\u1ee5ng (nh\u01b0 h\u00ecnh \u1ea3nh, video, b\u1ea3ng \u0111\u1ecbnh d\u1ea1ng, t\u1ec7p JavaScript) c\u00f9ng m\u1ed9t s\u1ed1 n\u1ed9i dung \u0111\u1ed9ng t\u1ea1i nh\u1eefng m\u00e1y ch\u1ee7 n\u1eb1m g\u1ea7n ng\u01b0\u1eddi d\u00f9ng h\u01a1n. Nh\u1edd \u0111\u00f3, th\u1eddi gian t\u1ea3i n\u1ed9i dung \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn \u0111\u00e1ng k\u1ec3, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m s\u1eed d\u1ee5ng t\u1ed1t h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n\n

Quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u01a1 b\u1ea3n c\u1ee7a CDN (Content Delivery Network \u2013 M\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung)<\/h3>\n\n\n\n

M\u00f4 h\u00ecnh truy c\u1eadp m\u1ea1ng truy\u1ec1n th\u1ed1ng l\u00e0 ng\u01b0\u1eddi d\u00f9ng g\u1eedi y\u00eau c\u1ea7u tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u00e1y ch\u1ee7 ngu\u1ed3n c\u1ee7a trang web, v\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n v\u1ec1 qua nh\u1eefng \u0111\u01b0\u1eddng truy\u1ec1n m\u1ea1ng d\u00e0i. N\u1ebfu ng\u01b0\u1eddi d\u00f9ng \u1edf qu\u00e1 xa m\u00e1y ch\u1ee7 ngu\u1ed3n ho\u1eb7c m\u1ea1ng b\u1ecb t\u1eafc ngh\u1ebdn, th\u1eddi gian tr\u1ec5 s\u1ebd t\u0103ng l\u00ean, l\u00e0m ch\u1eadm t\u1ed1c \u0111\u1ed9 t\u1ea3i trang web.<\/p>\n\n\n\n

CDN (Content Delivery Network) \u0111\u00e3 thay \u0111\u1ed5i ho\u00e0n to\u00e0n m\u00f4 h\u00ecnh n\u00e0y. Khi ng\u01b0\u1eddi d\u00f9ng y\u00eau c\u1ea7u m\u1ed9t n\u1ed9i dung \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi d\u1ecbch v\u1ee5 CDN, y\u00eau c\u1ea7u \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng m\u1ed9t c\u00e1ch th\u00f4ng minh \u0111\u1ebfn n\u00fat c\u1ea1nh (edge node) n\u1eb1m g\u1ea7n nh\u1ea5t v\u1edbi v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1t nh\u1ea5t. N\u1ebfu n\u1ed9i dung c\u1ea7n thi\u1ebft \u0111\u00e3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef s\u1eb5n tr\u00ean n\u00fat \u0111\u00f3, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 ngay cho ng\u01b0\u1eddi d\u00f9ng; qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201ctruy c\u1eadp tr\u00fang b\u1ed9 \u0111\u1ec7m\u201d (cache hit). \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 kho\u1ea3ng c\u00e1ch v\u1eadt l\u00fd v\u00e0 th\u1eddi gian truy\u1ec1n d\u1eef li\u1ec7u.<\/p>\n\n\n\n

N\u1ebfu n\u00fat \u0111\u1ea7u cu\u1ed1i kh\u00f4ng l\u01b0u tr\u1eef n\u1ed9i dung \u0111\u00f3 trong b\u1ed9 \u0111\u1ec7m (t\u1ee9c l\u00e0 tr\u01b0\u1eddng h\u1ee3p \u201ckh\u00f4ng t\u00ecm th\u1ea5y trong b\u1ed9 \u0111\u1ec7m\u201d), n\u00f3 s\u1ebd y\u00eau c\u1ea7u n\u1ed9i dung t\u1eeb n\u00fat c\u1ea5p tr\u00ean ho\u1eb7c tr\u1ef1c ti\u1ebfp t\u1eeb m\u00e1y ch\u1ee7 ngu\u1ed3n. Sau khi nh\u1eadn \u0111\u01b0\u1ee3c n\u1ed9i dung, n\u00f3 s\u1ebd l\u01b0u tr\u1eef n\u00f3 v\u00e0o b\u1ed9 \u0111\u1ec7m \u0111\u1ec3 s\u1eed d\u1ee5ng cho c\u00e1c y\u00eau c\u1ea7u t\u01b0\u01a1ng t\u1ef1 t\u1eeb ng\u01b0\u1eddi d\u00f9ng trong t\u01b0\u01a1ng lai. B\u1eb1ng c\u00e1ch n\u00e0y, n\u1ed9i dung \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u nhi\u1ec1u (hot content) \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m g\u1ea7n ng\u01b0\u1eddi d\u00f9ng nh\u1ea5t, gi\u00fap n\u1ed9i dung tr\u1edf n\u00ean \u201cg\u1ea7n h\u01a1n v\u1edbi ng\u01b0\u1eddi d\u00f9ng\u201d.<\/p>\n\n\n\n

C\u00e1c th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a CDN (Content Delivery Network \u2013 M\u1ea1ng Ph\u00e2n ph\u1ed1i N\u1ed9i dung)<\/h3>\n\n\n\n

M\u1ed9t h\u1ec7 th\u1ed1ng CDN (Content Delivery Network) ho\u00e0n ch\u1ec9nh th\u01b0\u1eddng bao g\u1ed3m m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n ch\u00ednh: C\u00e1c m\u00e1y ch\u1ee7 n\u00fat bi\u00ean (edge nodes) \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi t\u1ea1o th\u00e0nh c\u1ed1t l\u00f5i c\u1ee7a m\u1ea1ng, c\u00f3 nhi\u1ec7m v\u1ee5 l\u01b0u tr\u1eef v\u00e0 ph\u00e2n ph\u1ed1i n\u1ed9i dung; h\u1ec7 th\u1ed1ng ph\u00e2n b\u1ed5 t\u1ea3i (load balancing) \u0111\u1ea3m nhi\u1ec7m vi\u1ec7c \u0111i\u1ec1u ph\u1ed1i th\u00f4ng minh c\u00e1c y\u00eau c\u1ea7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn n\u00fat ph\u00f9 h\u1ee3p nh\u1ea5t; h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd n\u1ed9i dung (content management system) ch\u1ecbu tr\u00e1ch nhi\u1ec7m th\u00eam n\u1ed9i dung m\u1edbi v\u00e0o m\u1ea1ng, c\u1eadp nh\u1eadt v\u00e0 qu\u1ea3n l\u00fd c\u00e1c chi\u1ebfn l\u01b0\u1ee3c ph\u00e2n ph\u1ed1i n\u1ed9i dung; v\u00e0 cu\u1ed1i c\u00f9ng, m\u1ed9t h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t v\u00e0 ph\u00e2n t\u00edch m\u1ea1nh m\u1ebd \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt cho to\u00e0n b\u1ed9 m\u1ea1ng.<\/p>\n\n

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\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"\\nbunny.net\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t
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\r\n\t\t\t\t\t\\nbunny.net CDN<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\tChi ph\u00ed ch\u1ec9 t\u1eeb 1 \u0111\u00f4 la m\u1ed7i th\u00e1ng, v\u1edbi m\u1ee9c ph\u00ed r\u00f5 r\u00e0ng v\u00e0 kh\u00f4ng c\u00f3 chi ph\u00ed \u1ea9n. C\u00e1c t\u00ednh n\u0103ng bao g\u1ed3m l\u01b0u tr\u1eef v\u0129nh vi\u1ec5n, gi\u00e1m s\u00e1t theo th\u1eddi gian th\u1ef1c, b\u1ea3o v\u1ec7 DDoS v\u00e0 ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed. \u0110\u1eb7c bi\u1ec7t, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho ph\u00e1t tr\u1ef1c tuy\u1ebfn video v\u00e0 cung c\u1ea5p m\u1ed9t m\u00f4 h\u00ecnh thanh to\u00e1n linh ho\u1ea1t theo m\u1ee9c s\u1eed d\u1ee5ng.<\/span>\r\n\t\t\t\t
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Kh\u00f4ng c\u1ea7n th\u1ebb t\u00edn d\u1ee5ng, d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed trong 14 ng\u00e0y<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) c\u1ee7a bunny.net \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n\t\r\n\t
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\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"\u0110\u00e1m\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t
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\r\n\t\t\t\t\t\u0110\u00e1m m\u00e2y Cloudways Cloudflare Enterprise<\/strong>\r\n\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\tG\u00f3i gi\u00e1 d\u1ecbch v\u1ee5 CDN\/WAF c\u1ea5p doanh nghi\u1ec7p c\u1ee7a Cloudflare c\u00f3 c\u00e1c m\u1ee9c ph\u00ed nh\u01b0 sau: t\u1ed1i \u0111a 5 t\u00ean mi\u1ec1n, m\u1ed7i t\u00ean mi\u1ec1n c\u00f3 gi\u00e1 4,99 USD\/th\u00e1ng, bao g\u1ed3m 100GB b\u0103ng th\u00f4ng, v\u00e0 ph\u1ea7n v\u01b0\u1ee3t qu\u00e1 s\u1ebd \u0111\u01b0\u1ee3c t\u00ednh ph\u00ed theo m\u1ee9c ph\u00ed 0,02 USD\/GB.<\/span>\r\n\t\t\t\t
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M\u1ed7i t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c t\u1eb7ng 100GB l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp Cloudways Cloudflare Enterprise \u2192<\/a>\r\n\t\t\t\t\t\t\t<\/div> \r\n\t\t<\/div>\r\n\t<\/div>\r\n\t\t\r\n<\/div>\r\n\r\n\r\n\n\n\n\n\n\n\n

Nguy\u00ean l\u00fd c\u1ed1t l\u00f5i c\u1ee7a c\u00f4ng ngh\u1ec7 CDN (Content Delivery Network)<\/h2>\n\n\n\n

Hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a CDN kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec1u ng\u1eabu nhi\u00ean, m\u00e0 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a s\u1ef1 ph\u1ed1i h\u1ee3p ho\u00e0n h\u1ea3o gi\u1eefa nhi\u1ec1u c\u00f4ng ngh\u1ec7 then ch\u1ed1t. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c nguy\u00ean l\u00fd \u0111\u1eb1ng sau nh\u1eefng c\u00f4ng ngh\u1ec7 n\u00e0y s\u1ebd gi\u00fap ch\u00fang ta nh\u1eadn th\u1ee9c r\u00f5 h\u01a1n v\u1ec1 gi\u00e1 tr\u1ecb th\u1ef1c s\u1ef1 c\u1ee7a CDN.<\/p>\n\n\n\n

DNS gi\u1ea3i m\u00e3 th\u00f4ng minh v\u00e0 ph\u00e2n b\u1ed5 t\u1ea3i (Load Balancing)<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean m\u00e0 ng\u01b0\u1eddi d\u00f9ng th\u1ef1c hi\u1ec7n \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng CDN (Content Delivery Network), \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t truy c\u1eadp. Khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadp t\u00ean mi\u1ec1n, qu\u00e1 tr\u00ecnh gi\u1ea3i quy\u1ebft DNS theo c\u00e1ch truy\u1ec1n th\u1ed1ng c\u00f3 th\u1ec3 tr\u1ea3 v\u1ec1 \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 ngu\u1ed3n tr\u1ef1c ti\u1ebfp. Tuy nhi\u00ean, trong c\u1ea5u tr\u00fac CDN, c\u00e1c m\u00e1y ch\u1ee7 ch\u1ecbu tr\u00e1ch nhi\u1ec7m gi\u1ea3i quy\u1ebft DNS \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 CDN.<\/p>\n\n\n\n

H\u1ec7 th\u1ed1ng DNS th\u00f4ng minh c\u1ee7a CDN (Content Delivery Network) s\u1ebd xem x\u00e9t k\u1ebft h\u1ee3p nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau \u0111\u1ec3 l\u1ef1a ch\u1ecdn n\u00fat c\u1ea1nh (edge node) ph\u00f9 h\u1ee3p nh\u1ea5t: v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng (x\u00e1c \u0111\u1ecbnh th\u00f4ng qua \u0111\u1ecba ch\u1ec9 IP), t\u00ecnh tr\u1ea1ng t\u1ea3i c\u1ee7a t\u1eebng n\u00fat (ch\u1eb3ng h\u1ea1n nh\u01b0 hi\u1ec7u su\u1ea5t CPU, t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng), t\u00ecnh tr\u1ea1ng m\u1ea1ng (nh\u01b0 t\u1ef7 l\u1ec7 m\u1ea5t g\u00f3i tin, \u0111\u1ed9 tr\u1ec5), v\u00e0 th\u1eadm ch\u00ed l\u00e0 ch\u1ea5t l\u01b0\u1ee3ng k\u1ebft n\u1ed1i \u0111\u1ed1i \u1ee9ng v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u1ea1ng (ISP) c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. D\u1ef1a tr\u00ean nh\u1eefng th\u00f4ng tin n\u00e0y, h\u1ec7 th\u1ed1ng s\u1ebd tr\u1ea3 v\u1ec1 \u0111\u1ecba ch\u1ec9 IP c\u1ee7a n\u00fat c\u1ea1nh t\u1ed1i \u01b0u cho ng\u01b0\u1eddi d\u00f9ng, nh\u1eb1m \u0111\u1ea3m b\u1ea3o vi\u1ec7c \u0111\u1ecbnh h\u01b0\u1edbng l\u01b0u l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 ph\u00e2n b\u1ed5 t\u1ea3i m\u1ed9t c\u00e1ch \u0111\u1ec1u \u0111\u1eb7n gi\u1eefa c\u00e1c n\u00fat.<\/p>\n\n\n\n

C\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef \u0111\u1ec7m (Cache Technology) v\u00e0 Chi\u1ebfn l\u01b0\u1ee3c ph\u00e2n ph\u1ed1i n\u1ed9i dung (Content Distribution Strategy)<\/h3>\n\n\n\n

B\u1ed9 nh\u1edb \u0111\u1ec7m (cache) l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n c\u1ee7a CDN (Content Delivery Network). C\u00e1c m\u00e1y ch\u1ee7 \u1edf c\u00e1c \u0111i\u1ec3m n\u00fat bi\u00ean (edge nodes) s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb v\u00e0 c\u00f4ng ngh\u1ec7 l\u01b0u tr\u1eef hi\u1ec7u su\u1ea5t cao \u0111\u1ec3 l\u01b0u tr\u1eef n\u1ed9i dung \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u01b0\u1edbc. Chi\u1ebfn l\u01b0\u1ee3c l\u01b0u tr\u1eef \u0111\u1ec7m r\u1ea5t quan tr\u1ecdng; n\u00f3 quy\u1ebft \u0111\u1ecbnh nh\u1eefng n\u1ed9i dung n\u00e0o s<\/p>\n\n\n\n

C\u00e1c chi\u1ebfn l\u01b0\u1ee3c ph\u1ed5 bi\u1ebfn bao g\u1ed3m vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u d\u1ef1a tr\u00ean lo\u1ea1i t\u1ec7p (v\u00ed d\u1ee5: l\u01b0u tr\u1eef h\u00ecnh \u1ea3nh v\u0129nh vi\u1ec5n, l\u01b0u tr\u1eef n\u1ed9i dung HTML theo gi\u1eddi kh\u1eafc), l\u01b0u tr\u1eef d\u1ef1a tr\u00ean t\u1ea7n su\u1ea5t truy c\u1eadp (n\u1ed9i dung ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef l\u00e2u h\u01a1n), v\u00e0 tu\u00e2n theo c\u00e1c ti\u00eau \u0111\u1ec1 \u0111\u1ea7u (HTTP headers) cung c\u1ea5p b\u1edfi m\u00e1y ch\u1ee7 ngu\u1ed3n Cache-Control<\/code>, Expires<\/code>CDN c\u0169ng h\u1ed7 tr\u1ee3 t\u00ednh n\u0103ng l\u01b0u tr\u1eef n\u1ed9i dung tr\u01b0\u1edbc (pre-caching), t\u1ef1 \u0111\u1ed9ng \u0111\u1ea9y n\u1ed9i dung \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m truy c\u1eadp quan tr\u1ecdng tr\u01b0\u1edbc khi n\u00f3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, nh\u1eb1m \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m truy c\u1eadp nhanh ch\u00f3ng ngay t\u1eeb l\u1ea7n \u0111\u1ea7u ti\u00ean cho ng\u01b0\u1eddi d\u00f9ng. \u0110\u1ed1i v\u1edbi n\u1ed9i dung \u0111\u1ed9ng, c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 t\u1ed1i \u01b0u h\u00f3a \u0111\u01b0\u1eddng d\u1eabn (routing optimization) v\u00e0 t\u00e1i s\u1eed d\u1ee5ng k\u1ebft n\u1ed1i TCP (TCP connection reuse) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp. M\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 CDN c\u0169ng h\u1ed7 tr\u1ee3 t\u00ednh to\u00e1n t\u1ea1i \u201cr\u00eca m\u1ea1ng\u201d (edge computing) \u0111\u1ec3<\/p>\n\n\n\n

L\u1ee3i th\u1ebf c\u1ed1t l\u00f5i m\u00e0 CDN mang l\u1ea1i<\/h2>\n\n\n\n

Vi\u1ec7c tri\u1ec3n khai CDN kh\u00f4ng ch\u1ec9 nh\u1eb1m m\u1ee5c \u0111\u00edch \u201ct\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp\u201d m\u00e0 c\u00f2n mang l\u1ea1i nhi\u1ec1u gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i, c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c cho c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 trang web c\u1ea5p doanh nghi\u1ec7p.<\/p>\n\n\n\n

N\u00e2ng cao \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t trang web v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 l\u1ee3i \u00edch tr\u1ef1c ti\u1ebfp nh\u1ea5t c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng CDN (Content Delivery Network). B\u1eb1ng c\u00e1ch gi\u1ea3m kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eef li\u1ec7u v\u00e0 s\u1ed1 l\u1ea7n chuy\u1ec3n ti\u1ebfp qua m\u1ea1ng, CDN gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1ec5, t\u1eeb \u0111\u00f3 n\u00e2ng cao t\u1ed1c \u0111\u1ed9 t\u1ea3i trang v\u00e0 th\u1eddi gian hi\u1ec3n th\u1ecb n\u1ed9i dung. \u0110\u1ed1i v\u1edbi c\u00e1c trang web th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, m\u1ed7i s\u1ef1 gi\u1ea3m 100 mili gi\u00e2y trong th\u1eddi gian ph\u1ea3n h\u1ed3i (\u0111\u1ed9 tr\u1ec5) \u0111\u1ec1u c\u00f3 th\u1ec3 mang l\u1ea1i s\u1ef1 t\u0103ng tr\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 v\u1ec1 t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i kh\u00e1ch h\u00e0ng. \u0110\u1ed1i v\u1edbi d\u1ecbch v\u1ee5 truy\u1ec1n ph\u00e1t video, CDN \u0111\u1ea3m b\u1ea3o r\u1eb1ng video \u0111\u01b0\u1ee3c ph\u00e1t m\u01b0\u1ee3t m\u00e0, kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n ho\u1eb7c c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao. Tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng t\u1ed1t h\u01a1n tr\u1ef1c ti\u1ebfp gi\u00fap t\u0103ng m\u1ee9c \u0111\u1ed9 trung th\u00e0nh c\u1ee7a kh\u00e1ch h\u00e0ng<\/p>\n\n\n\n

N\u00e2ng cao kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u1ee7a trang web v\u00e0 s\u1ee9c m\u1ea1nh kinh doanh (Enhance website usability and business resilience)<\/h3>\n\n\n\n

CDN (Content Delivery Network) \u0111\u1ea3m b\u1ea3o t\u00ednh kh\u1ea3 d\u1ee5ng cao nh\u1edd v\u00e0o c\u1ea5u tr\u00fac ph\u00e2n t\u00e1n. Khi m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c n\u00fat trong h\u1ec7 th\u1ed1ng g\u1eb7p s\u1ef1 c\u1ed1, h\u1ec7 th\u1ed1ng \u0111i\u1ec1u ph\u1ed1i th\u00f4ng minh c\u00f3 th\u1ec3 ngay l\u1eadp t\u1ee9c chuy\u1ec3n l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp sang c\u00e1c n\u00fat kh\u00e1c \u0111ang ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, gi\u00fap che gi\u1ea5u s\u1ef1 c\u1ed1 \u0111\u00f3 v\u00e0 duy tr\u00ec t\u00ednh li\u00ean t\u1ee5c c\u1ee7a d\u1ecbch v\u1ee5. \u0110i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi vi\u1ec7c t\u1ea1o ra m\u1ed9t \u201cl\u1edbp b\u1ea3o v\u1ec7\u201d t\u1ef1 nhi\u00ean cho m\u00e1y ch\u1ee7 ngu\u1ed3n. Trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 s\u1ef1 gia t\u0103ng \u0111\u1ed9t ng\u1ed9t v\u1ec1 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp (ch\u1eb3ng h\u1ea1n nh\u01b0 khi m\u1ed9t s\u1ea3n ph\u1ea9m m\u1edbi \u0111\u01b0\u1ee3c ra m\u1eaft ho\u1eb7c c\u00f3 ch\u01b0\u01a1ng tr\u00ecnh khuy\u1ebfn m\u00e3i), c\u00e1c n\u00fat \u1edf kh\u1eafp n\u01a1i tr\u00ean th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 v\u00e0 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, ng\u0103n ch\u1eb7n m\u00e1y ch\u1ee7 ngu\u1ed3n b\u1ecb qu\u00e1 t\u1ea3i v\u00e0 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a doanh nghi\u1ec7p.<\/p>\n\n\n\n

Gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed b\u0103ng th\u00f4ng v\u00e0 \u00e1p l\u1ef1c l\u00ean m\u00e1y ch\u1ee7<\/h3>\n\n\n\n

V\u00ec h\u1ea7u h\u1ebft c\u00e1c y\u00eau c\u1ea7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec1u \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u1ef1c ti\u1ebfp b\u1edfi c\u00e1c n\u00fat c\u1ea1nh (edge nodes), ch\u1ec9 m\u1ed9t s\u1ed1 \u00edt tr\u01b0\u1eddng h\u1ee3p truy c\u1eadp v\u00e0o d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong b\u1ed9 \u0111\u1ec7m (cache) kh\u00f4ng th\u00e0nh c\u00f4ng ho\u1eb7c c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed9ng (dynamic requests) m\u1edbi \u0111\u01b0\u1ee3c g\u1eedi tr\u1edf l\u1ea1i m\u00e1y ch\u1ee7 ngu\u1ed3n (source server). \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 m\u1ee9c ti\u00eau th\u1ee5 b\u0103ng th\u00f4ng t\u1eeb m\u00e1y ch\u1ee7 ngu\u1ed3n, t\u1eeb \u0111\u00f3 ti\u1ebft ki\u1ec7m chi ph\u00ed mua b\u0103ng th\u00f4ng ban \u0111\u1ea7u. \u0110\u1ed3ng th\u1eddi, g\u00e1nh n\u1eb7ng l\u00ean m\u00e1y ch\u1ee7 ngu\u1ed3n (v\u1ec1 m\u1eb7t CPU, b\u1ed9 nh\u1edb, ho\u1ea1t \u0111\u1ed9ng \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra \u2013 I\/O) c\u0169ng \u0111\u01b0\u1ee3c gi\u1ea3m b\u1edbt \u0111\u00e1ng k\u1ec3; do \u0111\u00f3, c\u00e1c doanh nghi\u1ec7p c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 ngu\u1ed3n \u0111\u01a1n gi\u1ea3n h\u01a1n \u0111\u1ec3 h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng kinh doanh tr\u00ean to\u00e0n c\u1ea7u,<\/p>\n\n\n\n

N\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a trang web<\/h3>\n\n\n\n

C\u00e1c h\u1ec7 th\u1ed1ng CDN (Content Delivery Network) hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p nhi\u1ec1u t\u00ednh n\u0103ng b\u1ea3o m\u1eadt, \u0111\u00f3ng vai tr\u00f2 nh\u01b0 \u201ct\u1ea5m khi\u00ean b\u1ea3o v\u1ec7\u201d cho c\u00e1c trang web. C\u00e1c n\u00fat \u0111\u1ea7u cu\u1ed1i c\u1ee7a CDN c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS (Distributed Denial of Service), b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng dung l\u01b0\u1ee3ng b\u0103ng th\u00f4ng l\u1edbn v\u00e0 c\u00e1c trung t\u00e2m l\u1ecdc l\u01b0u l\u01b0\u1ee3ng \u0111\u1ec3 h\u1ea5p th\u1ee5 v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ed9c h\u1ea1i. CDN c\u0169ng cung c\u1ea5p ch\u1ee9c n\u0103ng t\u01b0\u1eddng l\u1eeda \u1ee9ng d\u1ee5ng web (Web Application Firewall \u2013 WAF), gi\u00fap b\u1ea3o v\u1ec7 trang web kh\u1ecfi c\u00e1c lo\u1ea1i t\u1ea5n c\u00f4ng ph\u1ed5 bi\u1ebfn nh\u01b0 SQL injection v\u00e0 XSS (Cross-Site Scripting). Ngo\u00e0i ra, vi\u1ec7c \u1ea9n \u0111\u1ecba ch\u1ec9 IP th\u1ef1c c\u1ee7a m\u00e1y ch\u1ee7 ngu\u1ed3n c\u00f2n l\u00e0m t\u0103ng \u0111\u1ed9 kh\u00f3 cho k\u1ebb t\u1ea5n c\u00f4ng trong vi\u1ec7c tr\u1ef1c ti\u1ebfp x\u00e2m nh\u1eadp v\u00e0o trang web \u0111\u00f3.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn v\u00e0 tri\u1ec3n khai m\u1ed9t d\u1ecbch v\u1ee5 CDN (Content Delivery Network) ph\u00f9 h\u1ee3p?<\/h2>\n\n\n\n

Tr\u01b0\u1edbc s\u1ef1 \u0111a d\u1ea1ng c\u1ee7a c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 CDN tr\u00ean th\u1ecb tr\u01b0\u1eddng, vi\u1ec7c \u0111\u01b0a ra l\u1ef1a ch\u1ecdn \u0111\u00fang \u0111\u1eafn v\u00e0 tri\u1ec3n khai ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 l\u00e0 ch\u00eca kh\u00f3a d\u1eabn \u0111\u1ebfn th\u00e0nh c\u00f4ng.<\/p>\n\n\n\n

\u0110\u00e1nh gi\u00e1 c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t ch\u00ednh<\/h3>\n\n\n\n

Khi l\u1ef1a ch\u1ecdn m\u1ed9t d\u1ecbch v\u1ee5 CDN (Content Delivery Network), b\u1ea1n kh\u00f4ng n\u00ean ch\u1ec9 quan t\u00e2m \u0111\u1ebfn gi\u00e1 c\u1ea3 m\u00e0 tr\u01b0\u1edbc h\u1ebft c\u1ea7n \u0111\u00e1nh gi\u00e1 c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u n\u0103ng c\u1ee7a n\u00f3. T\u1ef7 l\u1ec7 ph\u1ee7 s\u00f3ng (s\u1ed1 l\u01b0\u1ee3ng node v\u00e0 ph\u00e2n b\u1ed1 \u0111\u1ecba l\u00fd) quy\u1ebft \u0111\u1ecbnh xem d\u1ecbch v\u1ee5 c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 \u0111\u01b0\u1ee3c nh\u00f3m ng\u01b0\u1eddi d\u00f9ng m\u1ee5c ti\u00eau c\u1ee7a b\u1ea1n hay kh\u00f4ng. T\u1ef7 l\u1ec7 truy c\u1eadp \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong b\u1ed9 \u0111\u1ec7m (cache hit rate) ph\u1ea3n \u00e1nh tr\u1ef1c ti\u1ebfp hi\u1ec7u qu\u1ea3 c\u1ee7a CDN; t\u1ef7 l\u1ec7 n\u00e0y c\u00e0ng cao th\u00ec c\u00e0ng nhi\u1ec1u y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd ngay t\u1ea1i c\u00e1c m\u00e1y ch\u1ee7 g\u1ea7n ng\u01b0\u1eddi d\u00f9ng. Th\u1eddi gian truy c\u1eadp (delay) v\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u (throughput) th\u1ec3 hi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 t\u1eebng node. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 t\u1ed5ng th\u1ec3 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y th\u00f4ng qua c\u00e1c b\u00e0i \u0111\u00e1nh gi\u00e1 t\u1eeb b\u00ean th\u1ee9 ba, ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m th\u1eed s\u1eed d\u1ee5ng th\u1eed nghi\u1ec7m (v\u00ed d\u1ee5: \u0111o t\u1ed1c \u0111\u1ed9 t\u1ea3i xu\u1ed1ng t\u1eeb c\u00e1c m\u00e1y ch\u1ee7 \u1edf c\u00e1c khu v\u1ef1c<\/p>\n\n\n\n

Xem x\u00e9t c\u00e1c y\u00eau c\u1ea7u v\u1ec1 ch\u1ee9c n\u0103ng v\u00e0 t\u00edch h\u1ee3p<\/h3>\n\n\n\n

D\u1ef1a tr\u00ean nhu c\u1ea7u kinh doanh, c\u1ea7n ki\u1ec3m tra c\u00e1c t\u00ednh n\u0103ng m\u00e0 CDN cung c\u1ea5p, ch\u1eb3ng h\u1ea1n nh\u01b0: h\u1ed7 tr\u1ee3 cho c\u00e1c giao th\u1ee9c HTTPS\/HTTP\/2\/QUIC, t\u1ed1i \u01b0u h\u00f3a \u0111\u1eb7c bi\u1ec7t cho d\u1ecbch v\u1ee5 ph\u00e1t video theo y\u00eau c\u1ea7u (VOD) v\u00e0 tr\u1ef1c ti\u1ebfp (Live Streaming), API m\u1ea1nh m\u1ebd v\u00e0 t\u00ednh linh ho\u1ea1t trong c\u1ea5u h\u00ecnh, t\u00edch h\u1ee3p s\u00e2u r\u1ed9ng v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y ho\u1eb7c t\u00ednh to\u00e1n, c\u0169ng nh\u01b0 c\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u01b0\u1edbc \u0111\u00f3 (b\u1ea3o v\u1ec7 ch\u1ed1ng DDoS, WAF). \u0110\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p ho\u1ea1t \u0111\u1ed9ng tr\u00ean ph\u1ea1m vi to\u00e0n c\u1ea7u, c\u00f2n c\u1ea7n xem x\u00e9t kh\u1ea3 n\u0103ng ph\u00e2n b\u1ed5 t\u00e0i nguy\u00ean tr\u00ean to\u00e0n th\u1ebf gi\u1edbi v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng khu v\u1ef1c \u0111\u1ecba l\u00fd.<\/p>\n\n\n\n

Th\u1ef1c h\u00e0nh tri\u1ec3n khai v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/h3>\n\n\n\n

Vi\u1ec7c tri\u1ec3n khai CDN th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch th\u00eam t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n v\u00e0o n\u1ec1n t\u1ea3ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 v\u00e0 ch\u1ec9nh s\u1eeda c\u00e1c b\u1ea3n ghi DNS t\u01b0\u01a1ng \u1ee9ng. Sau \u0111\u00f3, b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c thi\u1ebft l\u1eadp chi ti\u1ebft nh\u01b0: \u0111\u1eb7t quy t\u1eafc l\u01b0u tr\u1eef \u0111\u1ec7m (cache rules), \u0111i\u1ec1u ch\u1ec9nh chi\u1ebfn l\u01b0\u1ee3c truy v\u1ea5n ngu\u1ed3n d\u1eef li\u1ec7u (origin-pull strategy), c\u1ea5u h\u00ecnh ch\u1ee9ng ch\u1ec9 SSL \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o to\u00e0n trang web ho\u1ea1t \u0111\u1ed9ng tr\u00ean giao th\u1ee9c HTTPS, v\u00e0 k\u00edch ho\u1ea1t c\u00e1c t\u00ednh n<\/p>\n\n\n\n

Sau khi tri\u1ec3n khai, vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c. C\u1ea7n s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u1eadt k\u00fd v\u00e0 ph\u00e2n t\u00edch m\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 CDN cung c\u1ea5p \u0111\u1ec3 theo d\u00f5i t\u1ef7 l\u1ec7 truy c\u1eadp v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m (cache hit rate), l\u01b0\u1ee3ng b\u0103ng th\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, c\u00e1c t\u1ec7p tin ph\u1ed5 bi\u1ebfn, ph\u00e2n b\u1ed1 \u0111\u1ecba l\u00fd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, v.v. D\u1ef1a tr\u00ean nh\u1eefng th\u00f4ng tin n\u00e0y, c\u1ea7n li\u00ean t\u1ee5c \u0111i\u1ec1u ch\u1ec9nh chi\u1ebfn l\u01b0\u1ee3c l\u01b0u tr\u1eef \u0111\u1ec7m, l\u00e0m n\u00f3ng n\u1ed9i dung quan tr\u1ecdng tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i, v\u00e0 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh k\u1ebft h\u1ee3p (merge) c\u0169ng nh\u01b0 n\u00e9n (compression) c\u00e1c t\u00e0i nguy\u00ean, nh\u1eb1m t\u1ed1i \u0111a h\u00f3a l\u1ee3<\/p>\n\n\n\n

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

CDN (Content Delivery Network) \u0111\u00e3 ph\u00e1t tri\u1ec3n t\u1eeb m\u1ed9t c\u00f4ng ngh\u1ec7 t\u00f9y ch\u1ecdn th\u00e0nh m\u1ed9t ph\u1ea7n c\u01a1 b\u1ea3n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng tr\u00ean Internet hi\u1ec7n \u0111\u1ea1i. B\u1eb1ng c\u00e1ch ph\u00e2n ph\u1ed1i n\u1ed9i dung m\u1ed9t c\u00e1ch th\u00f4ng minh \u0111\u1ebfn c\u00e1c \u0111i\u1ec3m cu\u1ed1i (edge nodes) tr\u00ean to\u00e0n c\u1ea7u, CDN gi\u1ea3i quy\u1ebft tri\u1ec7t \u0111\u1ec3 nhi\u1ec1u v\u1ea5n \u0111\u1ec1 nh\u01b0 \u0111\u1ed9 tr\u1ec5 k\u1ebft n\u1ed1i, \u00e1p l\u1ef1c l\u00ean m\u00e1y ch\u1ee7 ngu\u1ed3n, chi ph\u00ed b\u0103ng th\u00f4ng v\u00e0 \u0111\u1ed9 s\u1eb5n s\u00e0ng cao (high availability). Gi\u00e1 tr\u1ecb c\u1ee7a CDN kh\u00f4ng ch\u1ec9 th\u1ec3 hi\u1ec7n \u1edf t\u1ed1c \u0111\u1ed9 t\u1ea3i trang c\u1ef1c nhanh, m\u00e0 c\u00f2n n\u1eb1m \u1edf kh\u1ea3 n\u0103ng cung c\u1ea5p d\u1ecbch v\u1ee5 ph\u00e2n ph\u1ed1i n\u1ed9i dung to\u00e0n c\u1ea7u m\u1ed9t c\u00e1ch m\u1ea1nh m\u1ebd, \u0111\u00e1ng tin c\u1eady v\u00e0 an to\u00e0n cho c\u00e1c doanh nghi\u1ec7p tr\u1ef1c tuy\u1ebfn.<\/p>\n\n\n\n

D\u00f9 l\u00e0 c\u00f4ng ty kh\u1edfi nghi\u1ec7p hay doanh nghi\u1ec7p \u0111a qu\u1ed1c gia, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 tri\u1ec3n khai CDN m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd, \u0111\u1ed3ng th\u1eddi li\u00ean t\u1ee5c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t, s\u1ebd l\u00e0 nh\u1eefng bi\u1ec7n ph\u00e1p chi\u1ebfn l\u01b0\u1ee3c quan tr\u1ecdng \u0111\u1ec3 n\u00e2ng cao s\u1ee9c c\u1ea1nh tranh s\u1ed1, \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 duy tr\u00ec t\u00ednh li\u00ean t\u1ee5c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a doanh nghi<\/p>\n\n\n\n

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

CDN ch\u1ee7 y\u1ebfu t\u0103ng t\u1ed1c lo\u1ea1i n\u1ed9i dung n\u00e0o?<\/h3>\n\n\n\n

CDN (Content Delivery Network) gi\u1ecfi nh\u1ea5t trong vi\u1ec7c t\u0103ng t\u1ed1c \u0111\u1ed9 truy c\u1eadp c\u00e1c n\u1ed9i dung t\u0129nh, t\u1ee9c l\u00e0 nh\u1eefng t\u1ec7p tin kh\u00f4ng th\u01b0\u1eddng xuy\u00ean thay \u0111\u1ed5i theo ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c l\u01b0\u1ee3t truy c\u1eadp. Nh\u1eefng n\u1ed9i dung n\u00e0y bao g\u1ed3m h\u00ecnh \u1ea3nh tr\u00ean trang web (\u0111\u1ecbnh d\u1ea1ng JPG, PNG, GIF), c\u00e1c b\u1ea3ng \u0111\u1ecbnh d\u1ea1ng (CSS), m\u00e3 ngu\u1ed3n kh\u00e1ch h\u00e0ng (JavaScript), t\u1ec7p ch\u1ee9a ph\u00f4ng ch\u1eef, t\u00e0i li\u1ec7u v\u00e0 ph\u1ea7n m\u1ec1m c\u00f3 th\u1ec3 t\u1ea3i v\u1ec1, c\u0169ng nh\u01b0 c\u00e1c t\u1ec7p ph\u01b0\u01a1ng ti\u1ec7n \u00e2m thanh v\u00e0 video.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi n\u1ed9i dung \u0111\u1ed9ng (nh\u01b0 k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm \u0111\u01b0\u1ee3c t\u1ea1o ra theo th\u1eddi gian th\u1ef1c, trang th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, ph\u1ea3n h\u1ed3i t\u1eeb c\u00e1c giao di\u1ec7n API), hi\u1ec7u qu\u1ea3 t\u0103ng t\u1ed1c c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng CDN truy\u1ec1n th\u1ed1ng l\u00e0 c\u00f3 h\u1ea1n. Tuy nhi\u00ean, v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi nh\u01b0 \u0111\u1ecbnh tuy\u1ebfn th\u00f4ng minh (l\u1ef1a ch\u1ecdn \u0111\u01b0\u1eddng d\u1eabn truy xu\u1ea5t d\u1eef li\u1ec7u t\u1ed1i \u01b0u), t\u1ed1i \u01b0u h\u00f3a giao th\u1ee9c TCP, v\u00e0 th\u1eadm ch\u00ed l\u00e0 c\u00f4ng ngh\u1ec7 t\u00ednh to\u00e1n t\u1ea1i r\u00eca (edge computing), hi\u1ec7u su\u1ea5t truy\u1ec1n t\u1ea3i n\u1ed9i dung \u0111\u1ed9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

Vi\u1ec7c s\u1eed d\u1ee5ng m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1ee9 h\u1ea1ng SEO c\u1ee7a trang web kh\u00f4ng?<\/h3>\n\n\n\n

Vi\u1ec7c c\u1ea5u h\u00ecnh v\u00e0 s\u1eed d\u1ee5ng CDN (Content Delivery Network) \u0111\u00fang c\u00e1ch kh\u00f4ng ch\u1ec9 kh\u00f4ng g\u00e2y \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn SEO, m\u00e0 ng\u01b0\u1ee3c l\u1ea1i c\u00f2n c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c \u0111\u1ebfn th\u1ee9 h\u1ea1ng trang web tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. C\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm l\u1edbn nh\u01b0 Google \u0111\u00e3 coi t\u1ed1c \u0111\u1ed9 trang web (th\u1eddi gian t\u1ea3i trang) l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng trong vi\u1ec7c x\u1ebfp h\u1ea1ng.<\/p>\n\n\n\n

CDN gi\u00fap n\u00e2ng cao t\u1ed1c \u0111\u1ed9 truy c\u1eadp trang web tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, gi\u1ea3m t\u1ef7 l\u1ec7 ng\u01b0\u1eddi d\u00f9ng r\u1eddi trang ngay sau khi xem n\u1ed9i dung, v\u00e0 k\u00e9o d\u00e0i th\u1eddi gian h\u1ecd \u1edf l\u1ea1i trang web. Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y t\u1ea1o ra nh\u1eefng t\u00edn hi\u1ec7u t\u00edch c\u1ef1c m\u1ed9t c\u00e1ch gi\u00e1n ti\u1ebfp \u0111\u1ed1i v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. \u0110\u1ed3ng th\u1eddi, t\u00ednh kh\u1ea3 d\u1ee5ng cao m\u00e0 CDN mang l\u1ea1i \u0111\u1ea3m b\u1ea3o r\u1eb1ng trang web lu\u00f4n s\u1eb5n s\u00e0ng \u0111\u1ec3 c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm thu th\u1eadp d\u1eef li\u1ec7u. \u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u1ea5u h\u00ecnh CDN \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u00fang c\u00e1ch: thi\u1ebft l\u1eadp c\u00e1c quy t\u1eafc l\u01b0u tr\u1eef (cache) ph\u00f9 h\u1ee3p, tri\u1ec3n khai giao th\u1ee9c HTTPS m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, v\u00e0 x\u1eed l\u00fd c\u00e1c th\u1ebb canonical (canonical tags) m\u1ed9t c\u00e1ch th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 n\u1ed9i dung b\u1ecb l\u1eb7p l\u1ea1i do c\u1ea5u h\u00ecnh sai.<\/p>\n\n\n\n

CDN \u548c\u4e91\u5b58\u50a8\uff08\u5982 AWS S3\uff0c \u963f\u91cc\u4e91 OSS\uff09\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h3>\n\n\n\n

CDN (Content Delivery Network) v\u00e0 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y (cloud storage) c\u00f3 vai tr\u00f2 kh\u00e1c nhau, nh\u01b0ng th\u01b0\u1eddng ph\u1ed1i h\u1ee3p v\u1edbi nhau \u0111\u1ec3 cung c\u1ea5p d\u1ecbch v\u1ee5 t\u1ed1t h\u01a1n. L\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef t\u1ec7p tr\u1ef1c tuy\u1ebfn, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u1edbn (nh\u01b0 h\u00ecnh \u1ea3nh, video, t\u1ec7p sao l\u01b0u) m\u1ed9t c\u00e1ch b\u1ec1n v\u1eefng v\u00e0 v\u1edbi chi ph\u00ed th\u1ea5p; n\u00f3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 \u201cngu\u1ed3n\u201d ho\u1eb7c \u201ckho\u201d ch\u1ee9a n\u1ed9i dung.<\/p>\n\n\n\n

CDN (Content Delivery Network) l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 ph\u00e2n ph\u1ed1i n\u1ed9i dung, v\u1edbi hai ch\u1ee9c n\u0103ng ch\u00ednh l\u00e0 \u201ct\u0103ng t\u1ed1c truy c\u1eadp\u201d v\u00e0 \u201cph\u00e2n ph\u1ed1i n\u1ed9i dung\u201d \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng. C\u1ea5u tr\u00fac th\u00f4ng th\u01b0\u1eddng c\u1ee7a CDN l\u00e0 l\u01b0u tr\u1eef c\u00e1c t\u1ec7p tin tr\u00ean c\u00e1c d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y (cloud storage), sau \u0111\u00f3 s\u1eed d\u1ee5ng c\u00e1c \u201cbucket\u201d tr\u00ean nh\u1eefng d\u1ecbch v\u1ee5 n\u00e0y l\u00e0m ngu\u1ed3n d\u1eef li\u1ec7u cho CDN. CDN s\u1ebd l\u1ea5y c\u00e1c t\u1ec7p tin t\u1eeb d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y v\u00e0 l\u01b0u ch\u00fang v\u00e0o c\u00e1c node (n\u00fat) \u1edf g\u1ea7n ng\u01b0\u1eddi d\u00f9ng nh\u1ea5t, t\u1eeb \u0111\u00f3 gi\u00fap ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp n\u1ed9i dung m\u1ed9t c\u00e1ch nhanh ch\u00f3ng h\u01a1n. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y ch\u1ecbu tr\u00e1ch nhi\u1ec7m vi\u1ec7c l\u01b0u tr\u1eef n\u1ed9i dung, trong khi CDN \u0111\u1ea3m<\/p>\n\n\n\n

Sau khi tri\u1ec3n khai CDN (Content Delivery Network), l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u1ed9i dung \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt k\u1ecbp th\u1eddi?<\/h3>\n\n\n\n

\u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua c\u01a1 ch\u1ebf h\u1ebft h\u1ea1n c\u1ee7a b\u1ed9 \u0111\u1ec7m (cache expiration). Khi b\u1ea1n c\u1eadp nh\u1eadt c\u00e1c t\u1ec7p tr\u00ean m\u00e1y ch\u1ee7 ngu\u1ed3n (source server), b\u1ea1n c\u1ea7n l\u00e0m cho c\u00e1c b\u1ea3n sao c\u0169 trong b\u1ed9 \u0111\u1ec7m c\u1ee7a c\u00e1c node bi\u00ean (CDN edge nodes) h\u1ebft h\u1ea1n v\u00e0 t\u1ea3i v\u1ec1 phi\u00ean b\u1ea3n m\u1edbi. C\u00f3 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y:<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n t\u1ec7p tin, ch\u1eb3ng h\u1ea1n b\u1eb1ng c\u00e1ch th\u00eam s\u1ed1 phi\u00ean b\u1ea3n ho\u1eb7c gi\u00e1 tr\u1ecb hash v\u00e0o t\u00ean t\u1ec7p tin ho\u1eb7c \u0111\u01b0\u1eddng d\u1eabn URL. style.v2.css<\/code>Nh\u01b0 v\u1eady, \u0111\u1ecba ch\u1ec9 URL m\u1edbi s\u1ebd \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t ngu\u1ed3n t\u00e0i nguy\u00ean ho\u00e0n to\u00e0n m\u1edbi \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng CDN, v\u00e0 \u0111i\u1ec1u n\u00e0y s\u1ebd k\u00edch ho\u1ea1t qu\u00e1 tr\u00ecnh truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c (origin server). Th\u1ee9 hai, b\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 th\u1ef1c hi\u1ec7n y\u00eau c\u1ea7u \u201ct\u00e1i t\u1ea3i\u201d (refresh) th\u00f4ng qua giao di\u1ec7n \u0111i\u1ec1u khi\u1ec3n CDN ho\u1eb7c qua API \u0111\u1ec3 x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m (cache) c\u1ee7a c\u00e1c t\u1ec7p ho\u1eb7c th\u01b0 m\u1ee5c c\u1ee5 th\u1ec3 m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u0111\u00edch. Cu\u1ed1i c\u00f9ng, h\u00e3y thi\u1ebft l\u1eadp c\u00e1c ti\u00eau \u0111\u1ec1 HTTP cache ph\u00f9 h\u1ee3p tr\u00ean m\u00e1y ch\u1ee7 g\u1ed1c (v\u00ed d\u1ee5: th\u1eddi gian h\u1ebft h\u1ea1n cache ng\u1eafn h\u01a1n max-age<\/code>B\u1ea1n c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp \u0111\u1ec3 b\u1ed9 \u0111\u1ec7m t\u1ef1 \u0111\u1ed9ng h\u1ebft h\u1ea1n v\u00e0 y\u00eau c\u1ea7u d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n g\u1ed1c (origin) \u0111\u1ecbnh k\u1ef3. Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t l\u00e0 k\u1ebft h\u1ee3p vi\u1ec7c qu\u1ea3n l\u00fd b\u1ed9 \u0111\u1ec7m v\u1edbi c\u00f4ng c\u1ee5 ki\u1ec3m so\u00e1t phi\u00ean b\u1ea3n (version control) v\u00e0 thi\u1ebft l\u1eadp th\u1eddi gian l\u01b0u tr\u1eef d\u1eef li\u1ec7u trong b\u1ed9 \u0111\u1ec7m m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p.<\/p>","protected":false},"excerpt":{"rendered":"

B\u00e0i vi\u1ebft n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n, quy tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng v\u00e0 nguy\u00ean l\u00fd k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i c\u1ee7a CDN (M\u1ea1ng Ph\u00e2n ph\u1ed1i N\u1ed9i dung \u2013 Content Delivery Network), \u0111\u1eb7c bi\u1ec7t nh\u1ea5n m\u1ea1nh v\u00e0o nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a CDN trong vi\u1ec7c n\u00e2ng cao t\u1ed1c \u0111\u1ed9 truy c\u1eadp tr\u00ean to\u00e0n c\u1ea7u, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 s\u1eb5n s\u00e0ng cao (high availability), gi\u1ea3m b\u1edbt \u00e1p l\u1ef1c l\u00ean m\u00e1y ch\u1ee7 ngu\u1ed3n (source server), v\u00e0 t\u0103ng c\u01b0\u1eddng t\u00ednh b\u1ea3o m\u1eadt th\u00f4ng qua c\u00e1c ch\u1ee9c n\u0103ng l\u1eadp l\u1ecbch th\u00f4ng min<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"knowledge_category":[278],"class_list":["post-12372156","knowledge_post","type-knowledge_post","status-publish","hentry","knowledge_category-cdn"],"acf":{"site_seo_keywords":"CDN\u6280\u672f,\u5185\u5bb9\u5206\u53d1\u7f51\u7edc,\u7f51\u7ad9\u52a0\u901f,\u667a\u80fdDNS\u89e3\u6790,\u7f13\u5b58\u7b56\u7565,\u5168\u7403\u7f51\u7edc\u52a0\u901f\u4f18\u52bf,\u964d\u4f4e\u5e26\u5bbd\u6210\u672c"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12372156","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":0,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12372156\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12372156"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12372156"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12372156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}