{"id":12400868,"date":"2026-05-26T00:50:42","date_gmt":"2026-05-25T16:50:42","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/ssl%e8%af%81%e4%b9%a6%ef%bc%9a%e4%bf%9d%e9%9a%9c%e7%bd%91%e7%ab%99%e5%ae%89%e5%85%a8%e4%b8%8e%e7%94%a8%e6%88%b7%e4%bf%a1%e4%bb%bb%e7%9a%84%e5%8a%a0%e5%af%86%e5%9f%ba%e7%9f%b3\/"},"modified":"2026-05-26T01:02:53","modified_gmt":"2026-05-25T17:02:53","slug":"ssl-certificate-website-security-encryption","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-website-security-encryption\/","title":{"rendered":"SSL Ch\u1ee9ng ch\u1ec9: N\u1ec1n t\u1ea3ng m\u00e3 h\u00f3a b\u1ea3o v\u1ec7 an ninh trang web v\u00e0 x\u00e2y d\u1ef1ng l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng"},"content":{"rendered":"

Trong k\u1ef7 nguy\u00ean k\u1ef9 thu\u1eadt s\u1ed1 ng\u00e0y nay, b\u1ea3o m\u1eadt trang web \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c doanh nghi\u1ec7p v\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00e1 nh\u00e2n quan t\u00e2m nh\u1ea5t. Ch\u1ee9ng ch\u1ec9 SSL, v\u1edbi vai tr\u00f2 l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n c\u1ee7a b\u1ea3o m\u1eadt m\u1ea1ng, c\u00f3 t\u1ea7m quan tr\u1ecdng kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn. N\u00f3 kh\u00f4ng ch\u1ec9 l\u00e0 c\u00f4ng c\u1ee5 k\u1ef9 thu\u1eadt \u0111\u1ec3 b\u1ea3o v\u1ec7 an to\u00e0n qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u m\u00e0 c\u00f2n l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 x\u00e2y d\u1ef1ng l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, n\u00e2ng cao th\u1ee9 h\u1ea1ng trang web tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh ph\u00e1p l\u00fd trong kinh doanh. Khi b\u1ea1n nh\u00ecn th\u1ea5y bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a nh\u1ecf \u1edf thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t, ch\u00ednh l\u00e0 ch\u1ee9ng ch\u1ec9 SSL \u0111ang \u00e2m th\u1ea7m b\u1ea3o v\u1ec7 m\u1ecdi l\u1ea7n nh\u1ea5p chu\u1ed9t, m\u1ecdi l\u1ea7n \u0111\u0103ng nh\u1eadp v\u00e0 m\u1ecdi giao d\u1ecbch c\u1ee7a b\u1ea1n. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL, c\u00e1ch l\u1ef1a ch\u1ecdn lo\u1ea1i ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p v\u00e0 quy tr\u00ecnh tri\u1ec3n khai n\u00f3 l\u00e0 ki\u1ebfn th\u1ee9c b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ch\u1ee7 s\u1edf h\u1eefu trang web n\u00e0o.<\/p>\n\n\n\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n

Ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL l\u00e0 k\u00edch ho\u1ea1t giao th\u1ee9c HTTPS, t\u1ea1o ra m\u1ed9t k\u00eanh truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a gi\u1eefa tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 trang web. Qu\u00e1 tr\u00ecnh n\u00e0y ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng v\u00e0 m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng, nh\u1eb1m \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u kh\u00f4ng th\u1ec3 b\u1ecb gi\u1ea3i m\u00e3 ngay c\u1ea3 khi b\u1ecb ch\u1eb7n tr\u00ean \u0111\u01b0\u1eddng truy\u1ec1n.<\/p>\n\n\n\n

Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp m\u1ed9t trang web \u0111\u00e3 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL, tr\u00ecnh duy\u1ec7t s\u1ebd \u0111\u1ea7u ti\u00ean g\u1eedi y\u00eau c\u1ea7u \u201cgiao ti\u1ebfp\u201d (handshake) \u0111\u1ebfn m\u00e1y ch\u1ee7. Sau \u0111\u00f3, m\u00e1y ch\u1ee7 s\u1ebd g\u1eedi ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a m\u00ecnh (bao g\u1ed3m kh\u00f3a c\u00f4ng khai) \u0111\u1ebfn tr\u00ecnh duy\u1ec7t. Tr\u00ecnh duy\u1ec7t s\u1ebd ki\u1ec3m tra xem c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 c\u00f3 \u0111\u00e1ng tin c\u1eady hay kh\u00f4ng, xem ch\u1ee9ng ch\u1ec9 c\u00f2n h\u1ee3p l\u1ec7 trong th\u1eddi h\u1ea1n hay kh\u00f4ng, v\u00e0 xem t\u00ean mi\u1ec1n trong ch\u1ee9ng ch\u1ec9 c\u00f3 tr\u00f9ng kh\u1edbp v\u1edbi t\u00ean trang web \u0111ang \u0111\u01b0\u1ee3c truy c\u1eadp hay kh\u00f4ng. Qu\u00e1 tr\u00ecnh ki\u1ec3m tra n\u00e0y l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong vi\u1ec7c x\u00e2y d\u1ef1ng l\u00f2ng tin gi\u1eefa tr\u00ecnh duy\u1ec7t v\u00e0 m\u00e1y ch\u1ee7.<\/p>\n

\u0110\u1ecdc th\u00eam Ch\u1ee9ng ch\u1ec9 SSL: Gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 c\u00f4ng ngh\u1ec7 m\u00e3 h\u00f3a \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ni\u1ec1m tin cho website<\/a>\u3002<\/p>\n\n\n\n\n

Sau khi qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c \u0111\u01b0\u1ee3c ho\u00e0n t\u1ea5t, tr\u00ecnh duy\u1ec7t s\u1ebd t\u1ea1o ra m\u1ed9t \u201ckh\u00f3a phi\u00ean\u201d ng\u1eabu nhi\u00ean, sau \u0111\u00f3 s\u1eed d\u1ee5ng kh\u00f3a c\u00f4ng khai c\u1ee7a m\u00e1y ch\u1ee7 \u0111\u1ec3 m\u00e3 h\u00f3a kh\u00f3a n\u00e0y v\u00e0 g\u1eedi n\u00f3 tr\u1edf l\u1ea1i m\u00e1y ch\u1ee7. M\u00e1y ch\u1ee7 s\u1ebd d\u00f9ng kh\u00f3a ri\u00eang c\u1ee7a m\u00ecnh \u0111\u1ec3 gi\u1ea3i m\u00e3 kh\u00f3a phi\u00ean \u0111\u00f3 v\u00e0 thu \u0111\u01b0\u1ee3c n\u1ed9i dung c\u1ee7a n\u00f3. T\u1eeb th\u1eddi \u0111i\u1ec3m \u0111\u00f3, c\u1ea3 hai b\u00ean s\u1ebd s\u1eed d\u1ee5ng kh\u00f3a phi\u00ean n\u00e0y \u0111\u1ec3 m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i. Mekanism n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o an to\u00e0n trong qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i kh\u00f3a m\u00e0 c\u00f2n n\u00e2ng cao hi\u1ec7u qu\u1ea3 trong vi\u1ec7c m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u, t\u1eeb \u0111\u00f3 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o gi\u1eefa y\u1ebfu t\u1ed1 an ninh v\u00e0 hi\u1ec7u n\u0103ng.<\/p>\n\n

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\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Ch\u1ee9ng\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\tCh\u1ee9ng ch\u1ec9 SSL Bluehost<\/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\tBlueHost SSL cung c\u1ea5p t\u00f9y ch\u1ecdn gia h\u1ea1n t\u1eeb 1-2 n\u0103m, h\u1ed7 tr\u1ee3 thu\u1eadt to\u00e1n RSA ho\u1eb7c ECC, \u0111\u1ed9 d\u00e0i kh\u00f3a l\u00ean \u0111\u1ebfn 4096 bit v\u00e0 b\u1ea3o hi\u1ec3m l\u00ean \u0111\u1ebfn 1,75 tri\u1ec7u USD.<\/span>\r\n\t\t\t\t
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T\u1eeb 7,49 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp ch\u1ee9ng ch\u1ec9 SSL Bluehost \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\"Ch\u1ee9ng\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\tCh\u1ee9ng ch\u1ec9 SSL hosting.com<\/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\tCh\u1ee9ng ch\u1ec9 SSL DV, OV, EV gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng, m\u00e3 h\u00f3a l\u00ean \u0111\u1ebfn 256 bit, s\u1ed1 ti\u1ec1n b\u1ea3o \u0111\u1ea3m t\u1eeb 5 ~ 100 tri\u1ec7u USD, h\u1ed7 tr\u1ee3 24\/7<\/span>\r\n\t\t\t\t
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B\u1eaft \u0111\u1ea7u t\u1eeb $2.5 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp hosting.com Ch\u1ee9ng ch\u1ec9 SSL \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

C\u00e1c lo\u1ea1i ch\u00ednh v\u00e0 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n

D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c v\u00e0 ph\u1ea1m vi b\u1ea3o v\u1ec7, ch\u1ee9ng ch\u1ec9 SSL \u0111\u01b0\u1ee3c chia th\u00e0nh ba lo\u1ea1i ch\u00ednh nh\u1eb1m \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 s\u1ef1 tin t\u01b0\u1edfng trong c\u00e1c t\u00ecnh hu\u1ed1ng kh\u00e1c nhau. Vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 c\u00e2n b\u1eb1ng hi\u1ec7u qu\u1ea3 gi\u1eefa b\u1ea3o m\u1eadt, chi ph\u00ed v\u00e0 h\u00ecnh \u1ea3nh th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n (Domain Validation Certificate) l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u; c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 ch\u1ec9 ki\u1ec3m tra quy\u1ec1n s\u1edf h\u1eefu t\u00ean mi\u1ec1n c\u1ee7a ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n. Qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch g\u1eedi email x\u00e1c th\u1ef1c \u0111\u1ebfn email \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd v\u1edbi t\u00ean mi\u1ec1n ho\u1eb7c y\u00eau c\u1ea7u thi\u1ebft l\u1eadp c\u00e1c b\u1ea3n ghi DNS c\u1ee5 th\u1ec3. Th\u1ee7 t\u1ee5c n\u00e0y \u0111\u01a1n gi\u1ea3n, nhanh ch\u00f3ng v\u00e0 c\u00f3 chi ph\u00ed th\u1ea5p. Ch\u1ee9ng ch\u1ec9 n\u00e0y th\u00edch h\u1ee3p cho c\u00e1c trang web c\u00e1 nh\u00e2n, blog, m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m ho\u1eb7c h\u1ec7 th\u1ed1ng n\u1ed9i b\u1ed9, v\u00e0 c\u00f3 th\u1ec3 cung c\u1ea5p ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a c\u01a1 b\u1ea3n. Tuy nhi\u00ean, t\u00ean c\u1ee7a t\u1ed5 ch\u1ee9c s\u1edf h\u1eefu trang web s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t, v\u00e0 m\u1ee9c \u0111\u1ed9 tin c\u1eady m\u00e0 ch\u1ee9ng ch\u1ec9 mang l\u1ea1i kh\u00e1 c\u01a1 b\u1ea3n.<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u1ed5 ch\u1ee9c<\/h3>\n\n\n\n

So v\u1edbi c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c \u0111\u1ecba ch\u1ec9 (DV \u2013 Domain Validation) th\u00f4ng th\u01b0\u1eddng, ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u1ed5 ch\u1ee9c (OV \u2013 Organization Validation) b\u1ed5 sung th\u00eam quy tr\u00ecnh ki\u1ec3m tra nghi\u00eam ng\u1eb7t v\u1ec1 t\u00ednh ch\u00ednh th\u1ee9c v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a t\u1ed5 ch\u1ee9c \u0111\u0103ng k\u00fd ch\u1ee9ng ch\u1ec9. C\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 s\u1ebd ki\u1ec3m tra th\u00f4ng tin \u0111\u0103ng k\u00fd kinh doanh, \u0111\u1ecba ch\u1ec9 v\u1eadt l\u00fd v\u00e0 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i c\u1ee7a doanh nghi\u1ec7p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 h\u1ee3p ph\u00e1p v\u00e0 t\u1ed3n t\u1ea1i th\u1ef1c s\u1ef1. Nh\u1edd \u0111\u00f3, ch\u1ee9ng ch\u1ec9 OV mang l\u1ea1i m\u1ee9c \u0111\u1ed9 tin c\u1eady cao h\u01a1n; c\u00e1c chi ti\u1ebft v\u1ec1 doanh nghi\u1ec7p c\u0169ng s\u1ebd \u0111\u01b0\u1ee3c ghi r\u00f5 trong ch\u1ee9ng ch\u1ec9. Lo\u1ea1i ch\u1ee9ng ch\u1ec9 n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c trang web c\u1ee7a doanh nghi\u1ec7p, c\u00e1c n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed quy m\u00f4 v\u1eeba v\u00e0 nh\u1ecf, ho\u1eb7c nh\u1eefng trang web kinh doanh c\u1ea7n th\u1ec3 hi\u1ec7n t\u00ednh ch\u00ednh th\u1ee9c v\u00e0 \u0111<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c m\u1edf r\u1ed9ng<\/h3>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c m\u1edf r\u1ed9ng (Extended Validation \u2013 EV) l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL c\u1ea5p cao nh\u1ea5t, tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n x\u00e1c th\u1ef1c nghi\u00eam ng\u1eb7t \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Ngo\u00e0i vi\u1ec7c ki\u1ec3m tra th\u00f4ng tin v\u1ec1 t\u1ed5 ch\u1ee9c, c\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 (CA \u2013 Certificate Authorities) c\u00f2n ti\u1ebfn h\u00e0nh c\u00e1c cu\u1ed9c ki\u1ec3m tra ph\u00e1p l\u00fd v\u00e0 ho\u1ea1t \u0111\u1ed9ng kinh doanh chi ti\u1ebft h\u01a1n. C\u00e1c trang web s\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 EV s\u1ebd c\u00f3 thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t hi\u1ec3n th\u1ecb m\u00e0u xanh l\u00e1 c\u00e2y n\u1ed5i b\u1eadt, c\u00f9ng v\u1edbi t\u00ean c\u00f4ng ty \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u1ef1c ti\u1ebfp. \u0110\u00e2y l\u00e0 y\u00eau c\u1ea7u ti\u00eau chu\u1ea9n trong c\u00e1c ng\u00e0nh c\u00f3 \u0111\u00f2i h\u1ecfi cao v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u nh\u01b0 t\u00e0i ch\u00ednh, b\u1ea3o hi\u1ec3m, th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed l\u1edbn, gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 s\u1ef1 tin t\u01b0\u1edfng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng khi th\u1ef1c hi\u1ec7n c\u00e1c giao d\u1ecbch.<\/p>\n

\u0110\u1ecdc th\u00eam T\u00ecm hi\u1ec3u v\u1ec1 ch\u1ee9ng ch\u1ec9 SSL: T\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao, b\u1ea3o v\u1ec7 an to\u00e0n cho trang web<\/a>\u3002<\/p>\n\n\n\n\n

Ngo\u00e0i ra, d\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, c\u00f3 c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 nh\u01b0 ch\u1ee9ng ch\u1ec9 cho m\u1ed9t t\u00ean mi\u1ec1n duy nh\u1ea5t, ch\u1ee9ng ch\u1ec9 cho nhi\u1ec1u t\u00ean mi\u1ec1n, v\u00e0 ch\u1ee9ng ch\u1ec9 s\u1eed d\u1ee5ng k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n (%). \u0110i\u1ec1u n\u00e0y mang \u0111\u1ebfn cho ng\u01b0\u1eddi d\u00f9ng s\u1ef1 linh ho\u1ea1t trong l\u1ef1a ch\u1ecdn, gi\u00fap ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c c\u1ea5u tr\u00fac<\/p>\n\n\n\n

Best Practices for Deployment and Management<\/h2>\n\n\n\n

Mua ch\u1ee9ng ch\u1ec9 th\u00e0nh c\u00f4ng ch\u1ec9 l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean; vi\u1ec7c tri\u1ec3n khai \u0111\u00fang c\u00e1ch v\u00e0 qu\u1ea3n l\u00fd th\u01b0\u1eddng xuy\u00ean m\u1edbi l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 ph\u00e1t huy t\u1ed1i \u0111a hi\u1ec7u qu\u1ea3 b\u1ea3o m\u1eadt c\u1ee7a n\u00f3. M\u1ed9t s\u01a1 su\u1ea5t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt ho\u1eb7c gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/p>\n\n\n\n

Khi tri\u1ec3n khai, tr\u01b0\u1edbc ti\u00ean c\u1ea7n t\u1ea1o y\u00eau c\u1ea7u k\u00fd ch\u1ee9ng ch\u1ec9 (Certificate Signing Request \u2013 CSR) v\u00e0 kh\u00f3a ri\u00eang (private key) tr\u00ean m\u00e1y ch\u1ee7. Kh\u00f3a ri\u00eang ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o m\u1eadt tuy\u1ec7t \u0111\u1ed1i v\u00e0 l\u01b0u tr\u1eef m\u1ed9t c\u00e1ch an to\u00e0n; m\u1ecdi s\u1ef1 r\u00f2 r\u1ec9 th\u00f4ng tin v\u1ec1 kh\u00f3a ri\u00eang \u0111\u1ec1u khi\u1ebfn ch\u1ee9ng ch\u1ec9 tr\u1edf n\u00ean v\u00f4 hi\u1ec7u. Sau \u0111\u00f3, g\u1eedi y\u00eau c\u1ea7u CSR \u0111\u1ebfn c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9 \u0111\u1ec3 nh\u1eadn t\u1ec7p ch\u1ee9ng ch\u1ec9. Cu\u1ed1i c\u00f9ng, c\u1ea5u h\u00ecnh \u0111\u00fang c\u00e1ch t\u1ec7p ch\u1ee9ng ch\u1ec9 c\u00f9ng chu\u1ed7i ch\u1ee9ng ch\u1ec9 trung gian v\u00e0o ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web, v\u00e0 y\u00eau c\u1ea7u t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng HTTP \u0111\u01b0\u1ee3c chuy\u1ec3n h\u01b0\u1edbng sang giao th\u1ee9c HTTPS th\u00f4ng qua l\u1ec7nh 301, nh\u1eb1m \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f2n b\u1ea5t k\u1ef3 k\u00eanh truy\u1ec1n d\u1eef li\u1ec7u n\u00e0o di\u1ec5n ra d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n kh\u00f4ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a.<\/p>\n\n\n

\n\n
\n Ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a UltaHost<\/strong>\n
Ch\u1ee9ng ch\u1ec9 DV, EV, OV, h\u1ed7 tr\u1ee3 m\u1ee9c b\u1ea3o hi\u1ec3m t\u1ed1i \u0111a $1,750,000 USD, h\u1ed7 tr\u1ee3 v\u00f4 s\u1ed1 t\u00ean mi\u1ec1n ph\u1ee5, h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng iOS v\u00e0 Android, \u01b0u \u0111\u00e3i gi\u00e1 t\u1eeb 20% m\u1ed7i th\u00e1ng, v\u1edbi m\u1ee9c ph\u00ed $15,95 USD, b\u1ea3o l\u00e3nh ho\u00e0n ti\u1ec1n trong v\u00f2ng 30 ng\u00e0y.<\/div>\n <\/div>\n\n
\n \n \n \"Logo\n \n \n <\/a>\n \n \n Truy c\u1eadp UltaHost <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\n

Ch\u00eca kh\u00f3a trong qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 n\u1eb1m \u1edf vi\u1ec7c theo d\u00f5i v\u00f2ng \u0111\u1eddi c\u1ee7a ch\u00fang. C\u00e1c ch\u1ee9ng ch\u1ec9 SSL c\u00f3 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng, th\u01b0\u1eddng l\u00e0 m\u1ed9t n\u0103m. C\u1ea7n thi\u1ebft ph\u1ea3i thi\u1ebft l\u1eadp m\u1ed9t h\u1ec7 th\u1ed1ng nh\u1eafc nh\u1edf \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 gia h\u1ea1n ho\u1eb7c thay th\u1ebf ch\u1ee9ng ch\u1ec9 k\u1ecbp th\u1eddi tr\u01b0\u1edbc khi n\u00f3 h\u1ebft h\u1ea1n, nh\u1eb1m tr\u00e1nh t\u00ecnh tr\u1ea1ng trang web kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c do ch\u1ee9ng ch\u1ec9 \u0111\u00e3 h\u1ebft hi\u1ec7u l\u1ef1c, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u00ecnh \u1ea3nh th\u01b0\u01a1ng hi\u1ec7u. \u0110\u1ed3ng th\u1eddi, c\u1ea7n theo d\u00f5i s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a, v\u00e0 ngay l\u1eadp t\u1ee9c v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c thu\u1eadt to\u00e1n c\u0169 kh\u00f4ng an to\u00e0n trong c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7, chuy\u1ec3n sang s\u1eed d\u1ee5ng TLS 1.2 ho\u1eb7c c\u00e1c phi\u00ean b\u1ea3n m\u1edbi h\u01a1n \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi nh\u1eefng m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt lu\u00f4n thay \u0111\u1ed5i.<\/p>\n\n\n\n

Nh\u1eefng t\u00e1c \u0111\u1ed9ng s\u00e2u r\u1ed9ng c\u1ee7a SEO \u0111\u1ed1i v\u1edbi tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng (User Experience \u2013 UX)<\/h2>\n\n\n\n

Vi\u1ec7c tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL c\u00f3 t\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a trang web tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. C\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm h\u00e0ng \u0111\u1ea7u nh\u01b0 Google \u0111\u00e3 x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng r\u1eb1ng HTTPS l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 t\u00edch c\u1ef1c trong vi\u1ec7c x\u1ebfp h\u1ea1ng k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm. M\u1ed9t trang web an to\u00e0n s\u1ebd d\u1ec5 d\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 \u01b0u \u00e1i t\u1eeb c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm, t\u1eeb \u0111\u00f3 n\u00e2ng cao m\u1ee9c \u0111\u1ed9 hi\u1ec3n th\u1ecb c\u1ee7a n\u00f3 trong k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u1ee9ng ch\u1ec9 SSL kh\u00f4ng ch\u1ec9 l\u00e0 c\u00f4ng c\u1ee5 b\u1ea3o m\u1eadt m\u00e0 c\u00f2n l\u00e0 c\u00f4ng c\u1ee5 ti\u1ebfp th\u1ecb tr\u1ef1c tuy\u1ebfn quan tr\u1ecdng.<\/p>\n\n\n\n

Tr\u00ean ph\u01b0\u01a1ng di\u1ec7n tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, c\u00e1c tr\u00ecnh duy\u1ec7t hi\u1ec7n \u0111\u1ea1i s\u1ebd \u0111\u00e1nh d\u1ea5u c\u00e1c trang web kh\u00f4ng s\u1eed d\u1ee5ng giao th\u1ee9c HTTPS l\u00e0 \u201ckh\u00f4ng an to\u00e0n\u201d, \u0111i\u1ec1u n\u00e0y l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 m\u1ee9c \u0111\u1ed9 c\u1ea3nh gi\u00e1c c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 t\u1ef7 l\u1ec7 h\u1ecd nh\u1ea5p v\u00e0o n\u00fat \u201cb\u1ecf qua\u201d trang web \u0111\u00f3, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi nh\u1eefng trang y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng nh\u1eadp th\u00f4ng tin nh\u1ea1y c\u1ea3m nh\u01b0 m\u1eadt kh\u1ea9u ho\u1eb7c th\u00f4ng tin thanh to\u00e1n. Ng\u01b0\u1ee3c l\u1ea1i, bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a m\u00e0u xanh d\u01b0\u01a1ng \u0111\u1ea1i di\u1ec7n cho giao th\u1ee9c HTTPS c\u00f3 th\u1ec3 t\u0103ng \u0111\u00e1ng k\u1ec3 s\u1ef1 tin t\u01b0\u1edfng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, gi\u00fap n\u00e2ng cao t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i, k\u00e9o d\u00e0i th\u1eddi gian h\u1ecd \u1edf l\u1ea1i trang web, v\u00e0 gi\u1ea3m t\u1ef7 l\u1ec7 ng\u01b0\u1eddi d\u00f9ng t\u1eeb b\u1ecf vi\u1ec7c mua s\u1eafm. Ngo\u00e0i ra, HTTPS c\u0169ng l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 s\u1eed d\u1ee5ng nhi\u1ec1u API web v\u00e0 t\u00ednh n\u0103ng c\u1ee7a tr\u00ecnh duy\u1ec7t hi\u1ec7n \u0111\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ecbch v\u1ee5 \u0111\u1ecbnh v\u1ecb \u0111\u1ecba l\u00fd ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng web ti\u1ebfn b\u1ed9 (progressive web applications). N\u1ebfu kh\u00f4ng c\u00f3 HTTPS, c\u00e1c trang web n\u00e0y s\u1ebd kh\u00f4ng th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c nh\u1eefng t\u00ednh n\u0103ng n\u00e2ng cao n\u00e0y.<\/p>\n

\u0110\u1ecdc th\u00eam SSL (Secure Sockets Layer) l\u00e0 giao th\u1ee9c b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i an to\u00e0n gi\u1eefa m\u00e1y ch\u1ee7 v\u00e0 tr\u00ecnh duy\u1ec7t. N\u00f3 gi\u00fap b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n qua m\u1ea1ng kh\u1ecfi vi\u1ec7c b\u1ecb theo d\u00f5i, gi\u00e1n m\u1ea1o ho\u1eb7c s\u1eeda \u0111\u1ed5i. SSL cung c\u1ea5p m\u1ed9t c\u01a1 ch\u1ebf m\u00e3 h\u00f3a \u0111\u1ec3 m\u00e3 h\u00f3a th\u00f4ng tin, \u0111\u1ea3m b\u1ea3o r\u1eb1<\/a>\u3002<\/p>\n\n\n\n\n

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

SSL ch\u1ee9ng ch\u1ec9 \u0111\u00e3 t\u1eebng ch\u1ec9 l\u00e0 m\u1ed9t bi\u1ec7n ph\u00e1p t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt t\u00f9y ch\u1ecdn, nh\u01b0ng ng\u00e0y nay \u0111\u00e3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c trang web. N\u00f3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u b\u1eb1ng c\u00f4ng ngh\u1ec7 m\u00e3 h\u00f3a, x\u00e2y d\u1ef1ng l\u00f2ng tin th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng, v\u00e0 c\u00f3 \u1ea3nh h\u01b0\u1edfng quan tr\u1ecdng \u0111\u1ebfn th\u1ee9 h\u1ea1ng trang web tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u0169ng nh\u01b0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. D\u00f9 l\u00e0 blog c\u00e1 nh\u00e2n hay c\u00e1c n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed l\u1edbn, vi\u1ec7c l\u1ef1a ch\u1ecdn ch\u1ee9ng ch\u1ec9 SSL ph\u00f9 h\u1ee3p v\u00e0 tri\u1ec3n khai, qu\u1ea3n l\u00fd ch\u00fang theo c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t kh\u00f4ng gian tr\u1ef1c tuy\u1ebfn \u0111\u00e1ng tin c\u1eady. D\u00f9 b\u1ea1n l\u00e0 ch\u1ee7 trang web c\u00e1 nh\u00e2n hay ng\u01b0\u1eddi ph\u1ee5 tr\u00e1ch c\u00f4ng ngh\u1ec7 th\u00f4ng tin trong doanh nghi\u1ec7p, b\u1ea1n \u0111\u1ec1u c\u1ea7n hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL, l\u1ef1a ch\u1ecdn ch\u00fang m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p v\u00e0 qu\u1ea3n l\u00fd ch\u00fang m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn, nh\u1eb1m t\u1ea1o ra m\u1ed9t m\u00f4i tr\u01b0\u1eddng tr\u1ef1c tuy\u1ebfn an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady cho ng\u01b0\u1eddi truy c\u1eadp \u2013 \u0111\u00e2y ch\u00ednh l\u00e0 n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u00e0 ph\u00e1t tri\u1ec3n trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n\n\n\n

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

M\u1ed1i quan h\u1ec7 gi\u1eefa ch\u1ee9ng ch\u1ec9 SSL v\u00e0 HTTPS l\u00e0 g\u00ec?<\/h3>\n\n\n\n

SSL ch\u1ee9ng ch\u1ec9 l\u00e0 n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt \u0111\u1ec3 tri\u1ec3n khai giao th\u1ee9c HTTPS. Ch\u1ec9 khi m\u00e1y ch\u1ee7 trang web \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t SSL ch\u1ee9ng ch\u1ec9, n\u00f3 m\u1edbi c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u1edbi tr\u00ecnh duy\u1ec7t c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, bi\u1ebfn \u0111\u1ecba ch\u1ec9 trang web t\u1eeb HTTP th\u00e0nh HTTPS v\u00e0 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u. C\u00f3 th\u1ec3 n\u00f3i r\u1eb1ng, SSL ch\u1ee9ng ch\u1ec9 ch\u00ednh l\u00e0 \u201cchi\u1ebfc ch\u00eca kh\u00f3a\u201d \u0111\u1ec3 m\u1edf c\u00e1nh c\u1eeda s\u1eed d\u1ee5ng giao th\u1ee9c HTTPS.<\/p>\n\n\n\n

Ch\u1ee9ng ch\u1ec9 SSL mi\u1ec5n ph\u00ed v\u00e0 tr\u1ea3 ph\u00ed kh\u00e1c nhau th\u1ebf n\u00e0o?<\/h3>\n\n\n\n

C\u00e1c ch\u1ee9ng ch\u1ec9 mi\u1ec5n ph\u00ed th\u01b0\u1eddng l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n (domain validation certificates), c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u m\u00e3 h\u00f3a c\u01a1 b\u1ea3n v\u00e0 ph\u00f9 h\u1ee3p cho c\u00e1 nh\u00e2n ho\u1eb7c c\u00e1c d\u1ef1 \u00e1n th\u1eed nghi\u1ec7m. Trong khi \u0111\u00f3, c\u00e1c ch\u1ee9ng ch\u1ec9 c\u00f3 ph\u00ed cung c\u1ea5p m\u1ee9c \u0111\u1ed9 x\u00e1c th\u1ef1c cao h\u01a1n, th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng d\u00e0i h\u01a1n, m\u1ee9c b\u1ed3i th\u01b0\u1eddng cao h\u01a1n trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra s\u1ef1 c\u1ed1, c\u00f9ng v\u1edbi d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt chuy\u00ean nghi\u1ec7p, n\u00ean ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi c\u00e1c trang web th\u01b0\u01a1ng m\u1ea1i \u0111\u00f2i h\u1ecfi t\u00ednh b\u1ea3o m\u1eadt v\u00e0 uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u cao. Nh\u1eefng ch\u1ee9ng ch\u1ec9 n\u00e0y c\u0169ng mang l\u1ea1i nh\u1eefng t\u00edn hi\u1ec7u tin c\u1eady r\u00f5 r\u00e0ng h\u01a1n khi hi\u1ec3n th\u1ecb tr\u00ean tr\u00ecnh duy<\/p>\n\n\n\n

Vi\u1ec7c tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 website kh\u00f4ng?<\/h3>\n\n\n\n

Vi\u1ec7c k\u00edch ho\u1ea1t qu\u00e1 tr\u00ecnh m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 b\u1eb1ng HTTPS th\u1ef1c s\u1ef1 s\u1ebd ti\u00eau t\u1ed1n m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf t\u00e0i nguy\u00ean t\u00ednh to\u00e1n, nh\u01b0ng ph\u1ea7n c\u1ee9ng hi\u1ec7n \u0111\u1ea1i c\u00f9ng c\u00e1c giao th\u1ee9c \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a \u0111\u00e3 gi\u00fap gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng n\u00e0y xu\u1ed1ng m\u1ee9c t\u1ed1i \u0111a. Th\u00f4ng th\u01b0\u1eddng, s\u1ef1 ch\u1eadm tr\u1ec5 nh\u1ecf v\u1ec1 t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c coi l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3 so v\u1edbi l\u1ee3i \u00edch v\u1ec1 m\u1eb7t b\u1ea3o m\u1eadt v\u00e0 th\u1ee9 h\u1ea1ng tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm (SEO) m\u00e0 HTTPS mang l\u1ea1i. Th\u1eadm ch\u00ed, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 t\u1ed1i \u01b0u nh\u01b0 HTTP\/2 c\u00f2n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t trang web. Ng\u01b0\u1eddi d\u00f9ng h\u1ea7u nh\u01b0 kh\u00f4ng c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 hi\u1ec7u n<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a m\u1ed9t trang web c\u00f3 h\u1ee3p l\u1ec7 v\u00e0 \u0111\u00e1ng tin c\u1eady hay kh\u00f4ng?<\/h3>\n\n\n\n

B\u1ea1n c\u00f3 th\u1ec3 xem chi ti\u1ebft ch\u1ee9ng ch\u1ec9 b\u1eb1ng c\u00e1ch nh\u1ea5p v\u00e0o bi\u1ec3u t\u01b0\u1ee3ng kh\u00f3a \u1edf thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t. M\u1ed9t ch\u1ee9ng ch\u1ec9 \u0111\u00e1ng tin c\u1eady s\u1ebd hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o \u201cK\u1ebft n\u1ed1i l\u00e0 an to\u00e0n\u201d, cung c\u1ea5p th\u00f4ng tin v\u1ec1 ng\u01b0\u1eddi c\u1ea5p ch\u1ee9ng ch\u1ec9 (m\u1ed9t t\u1ed5 ch\u1ee9c \u0111\u01b0\u1ee3c tin t\u01b0\u1edfng) v\u00e0 th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c c\u1ee7a ch\u1ee9ng ch\u1ec9; \u0111\u1ed3ng th\u1eddi t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c khai b\u00e1o trong ch\u1ee9ng ch\u1ec9 ph\u1ea3i tr\u00f9ng kh\u1edbp ho\u00e0n to\u00e0n v\u1edbi trang web \u0111ang \u0111\u01b0\u1ee3c truy c\u1eadp. \u0110\u1ed1i v\u1edbi c\u00e1c ch\u1ee9ng ch\u1ec9 EV (Extended Validation), t\u00ean c\u00f4ng ty s\u1ebd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng m\u00e0u xanh l\u00e1 c\u00e2y.<\/p>","protected":false},"excerpt":{"rendered":"

SSL ch\u1ee9ng ch\u1ec9 l\u00e0 n\u1ec1n t\u1ea3ng c\u01a1 b\u1ea3n cho s\u1ef1 an to\u00e0n c\u1ee7a trang web, b\u1ea3o v\u1ec7 an to\u00e0n qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u th\u00f4ng qua c\u00e1c k\u00eanh \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, \u0111\u1ed3ng th\u1eddi n\u00e2ng cao l\u00f2ng tin c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 th\u1ee9 h\u1ea1ng tr\u00ean c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch chi ti\u1ebft v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a SSL ch\u1ee9ng ch\u1ec9, ba lo\u1ea1i ch\u00ednh (DV, OV, EV), c\u0169ng nh\u01b0 c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong vi\u1ec7c tri\u1ec3n khai v\u00e0 qu\u1ea3n l\u00fd ch\u00fang, nh\u1eb1m gi\u00fap ch\u1ee7 s\u1edf h\u1eefu trang web l\u1ef1a ch\u1ecdn ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u00e0 n\u00e2ng cao uy t\u00edn th\u01b0\u01a1ng hi<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[2073,11,336,327,319],"knowledge_category":[277],"class_list":["post-12400868","knowledge_post","type-knowledge_post","status-publish","hentry","tag-https-protocol","tag-ssl-certificate","tag-encryption-technology","tag-digital-certificate","tag-website-security","knowledge_category-ssl-certificate"],"acf":{"site_seo_keywords":"SSL\u8bc1\u4e66,\u7f51\u7ad9\u5b89\u5168,HTTPS\u52a0\u5bc6,\u7528\u6237\u4fe1\u4efb,SEO\u4f18\u5316,\u6269\u5c55\u9a8c\u8bc1\u8bc1\u4e66,SSL\u8bc1\u4e66\u7c7b\u578b,\u7f51\u7ad9\u52a0\u5bc6\u90e8\u7f72"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12400868","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":3,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12400868\/revisions"}],"predecessor-version":[{"id":12400874,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12400868\/revisions\/12400874"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12400868"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12400868"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12400868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}