{"id":12378869,"date":"2026-03-20T04:19:56","date_gmt":"2026-03-19T20:19:56","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e5%9c%a8%e5%bd%93%e4%bb%8a%e7%9a%84%e4%ba%92%e8%81%94%e7%bd%91%e7%8e%af%e5%a2%83%e4%b8%ad%ef%bc%8c%e7%bd%91%e7%ab%99%e5%ae%89%e5%85%a8%e4%b8%8d%e4%bb%85%e6%98%af%e6%8a%80%e6%9c%af%e9%9c%80%e6%b1%82\/"},"modified":"2026-03-20T04:58:41","modified_gmt":"2026-03-19T20:58:41","slug":"website-security-ssl-certificate-https-encryption-user-trust","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/website-security-ssl-certificate-https-encryption-user-trust\/","title":{"rendered":"Trong m\u00f4i tr\u01b0\u1eddng internet ng\u00e0y nay, b\u1ea3o m\u1eadt trang web kh\u00f4ng ch\u1ec9 l\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt m\u00e0 c\u00f2n l\u00e0 c\u00e1ch thi\u1ebft l\u1eadp ni\u1ec1m tin ng\u01b0\u1eddi d\u00f9ng"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng Internet hi\u1ec7n nay, b\u1ea3o m\u1eadt website kh\u00f4ng ch\u1ec9 l\u00e0 nhu c\u1ea7u k\u1ef9 thu\u1eadt m\u00e0 c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng x\u00e2y d\u1ef1ng ni\u1ec1m tin ng\u01b0\u1eddi d\u00f9ng. SSL certificate, c\u00f4ng c\u1ee5 c\u1ed1t l\u00f5i \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u00e3 h\u00f3a HTTPS, \u0111\u00e3 chuy\u1ec3n t\u1eeb \u201ct\u00f9y ch\u1ecdn n\u00e2ng cao\u201d th\u00e0nh \u201cc\u1ea5u h\u00ecnh ti\u00eau chu\u1ea9n\u201d trong v\u1eadn h\u00e0nh website. B\u1eb1ng c\u00e1ch thi\u1ebft l\u1eadp m\u1ed9t k\u00eanh m\u00e3 h\u00f3a gi\u1eefa tr\u00ecnh duy\u1ec7t ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 website, n\u00f3 \u0111\u1ea3m b\u1ea3o m\u1ecdi d\u1eef li\u1ec7u truy\u1ec1n t\u1ea3i (nh\u01b0 th\u00f4ng tin \u0111\u0103ng nh\u1eadp, th\u1ebb t\u00edn d\u1ee5ng, d\u1eef li\u1ec7u c\u00e1 nh\u00e2n) kh\u00f4ng b\u1ecb b\u00ean th\u1ee9 ba \u0111\u00e1nh c\u1eafp ho\u1eb7c gi\u1ea3 m\u1ea1o. \u0110\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 website n\u00e0o li\u00ean quan \u0111\u1ebfn t\u01b0\u01a1ng t\u00e1c th\u00f4ng tin, tri\u1ec3n khai SSL certificate l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean thi\u1ebft y\u1ebfu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a SSL certificate l\u00e0 k\u00edch ho\u1ea1t giao th\u1ee9c HTTPS, c\u00f4ng ngh\u1ec7 \u0111\u1eb1ng sau 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, c\u00f9ng c\u01a1 ch\u1ebf chu\u1ed7i tin c\u1eady c\u1ee7a t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng v\u00e0 qu\u00e1 tr\u00ecnh b\u1eaft tay<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp m\u1ed9t website \u0111\u00e3 b\u1eadt HTTPS, tr\u00ecnh duy\u1ec7t tr\u01b0\u1edbc ti\u00ean s\u1ebd kh\u1edfi t\u1ea1o \u201cSSL handshake\u201d v\u1edbi m\u00e1y ch\u1ee7. Trong qu\u00e1 tr\u00ecnh n\u00e0y, m\u00e1y ch\u1ee7 s\u1ebd g\u1eedi SSL certificate (ch\u1ee9a public key) c\u1ee7a n\u00f3 cho tr\u00ecnh duy\u1ec7t. Tr\u00ecnh duy\u1ec7t s\u1eed d\u1ee5ng public key trong certificate \u0111\u1ec3 m\u00e3 h\u00f3a m\u1ed9t \u201csession key\u201d ng\u1eabu nhi\u00ean \u0111\u01b0\u1ee3c t\u1ea1o ra, v\u00e0 g\u1eedi l\u1ea1i m\u00e1y ch\u1ee7. M\u00e1y ch\u1ee7 sau \u0111\u00f3 s\u1eed d\u1ee5ng private key \u0111\u01b0\u1ee3c gi\u1eef b\u00ed m\u1eadt tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u00ecnh \u0111\u1ec3 gi\u1ea3i m\u00e3, l\u1ea5y session key \u0111\u00f3. \u0110\u1ebfn \u0111\u00e2y, c\u1ea3 hai b\u00ean \u0111\u00e3 chia s\u1ebb an to\u00e0n m\u1ed9t kh\u00f3a ch\u1ec9 ri\u00eang h\u1ecd bi\u1ebft.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-guide-types-installation-website-data-security\/\">Gi\u1ea3i th\u00edch chi ti\u1ebft SSL certificate: T\u00e1c d\u1ee5ng, lo\u1ea1i h\u00ecnh v\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t, \u0111\u1ea3m b\u1ea3o an to\u00e0n truy\u1ec1n d\u1eef li\u1ec7u website<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi qu\u00e1 tr\u00ecnh b\u1eaft tay ho\u00e0n t\u1ea5t, hai b\u00ean s\u1ebd s\u1eed d\u1ee5ng \u201ckh\u00f3a phi\u00ean\u201d \u0111\u00e3 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1eeb b\u01b0\u1edbc tr\u01b0\u1edbc \u0111\u1ec3 th\u1ef1c hi\u1ec7n giao ti\u1ebfp m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng. Thu\u1eadt to\u00e1n m\u00e3 h\u00f3a \u0111\u1ed1i x\u1ee9ng c\u00f3 t\u1ed1c \u0111\u1ed9 m\u00e3 h\u00f3a v\u00e0 gi\u1ea3i m\u00e3 nhanh, ph\u00f9 h\u1ee3p cho vi\u1ec7c truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u s\u1ed1 l\u01b0\u1ee3ng l\u1edbn theo th\u1eddi gian th\u1ef1c. To\u00e0n b\u1ed9 n\u1ed9i dung trang web, d\u1eef li\u1ec7u bi\u1ec3u m\u1eabu \u0111\u01b0\u1ee3c g\u1eedi \u0111i \u0111\u1ec1u s\u1eed d\u1ee5ng kh\u00f3a n\u00e0y \u0111\u1ec3 m\u00e3 h\u00f3a, t\u1eeb \u0111\u00f3 t\u1ea1o ra m\u1ed9t k\u00eanh ri\u00eang t\u01b0 an to\u00e0n tr\u00ean m\u1ea1ng c\u00f4ng c\u1ed9ng.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n<div class=\"grid grid-cols-1 md:grid-cols-2 gap-4 md:gap-6 mb-8 md:mb-10 mt-10\"> \r\n\t<!-- \u91cd\u590d\u5668\u5faa\u73af\u5f00\u59cb -->\r\n\t\t\r\n\t<!-- \u5546\u5bb6\u5361\u7247 -->\r\n\t<div class=\"bg-white dark:bg-gray-750 rounded-lg overflow-hidden shadow-md flex gap-1 flex-col     justify-between\" data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/bluehost-ssl-certificates\/\">\r\n\t\t<div class=\"flex items-start justify-between\"> \r\n\t\t\t<!-- \u5546\u5bb6logo -->\r\n\t\t\t<div class=\"w-16 h-16 bg-blue-200 dark:bg-blue-500\/30 flex items-center justify-center flex-shrink-0 p-3\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251231095917.webp\" alt=\"Ch\u1ee9ng ch\u1ec9 SSL Bluehost\" class=\"w-12 object-contain !dark-filter08\" title=\"\">\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<!-- \u5546\u5bb6\u4fe1\u606f -->\r\n\t\t\t<div class=\"px-4 pt-2 flex-grow\">\r\n\t\t\t\t<div class=\"flex justify-between items-start mb-2\">\r\n\t\t\t\t\t<strong class=\"text-xl font-bold\">Ch\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\t<span class=\"text-gray-500 dark:text-gray-300 !text-sm p-4 pb-0\">BlueHost 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<div class=\"flex flex-col gap-4 md:gap-6 justify-between p-4\"> \r\n\t\t\t<!-- \u6807\u7b7e -->\r\n\t\t\t\t\t\t\r\n\t\t\t<!-- \u6d3b\u52a8\u548c\u94fe\u63a5 --> \r\n\t\t\t<div class=\"flex justify-between items-center gap-3 flex-col\">\r\n\t\t\t\t\t\t\t\t<div class=\"text-gray-500 dark:text-gray-300 !text-sm line-clamp-1\">T\u1eeb 7,49 USD m\u1ed7i th\u00e1ng<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/bluehost-ssl-certificates\/\" class=\"flex justify-end font-bold !text-lg !text-blue-600 dark:!text-blue-500\">Truy 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<!-- \u5546\u5bb6\u5361\u7247 -->\r\n\t<div class=\"bg-white dark:bg-gray-750 rounded-lg overflow-hidden shadow-md flex gap-1 flex-col     justify-between\" data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-com-ssl-certificates\/\">\r\n\t\t<div class=\"flex items-start justify-between\"> \r\n\t\t\t<!-- \u5546\u5bb6logo -->\r\n\t\t\t<div class=\"w-16 h-16 bg-blue-200 dark:bg-blue-500\/30 flex items-center justify-center flex-shrink-0 p-3\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227070008.webp\" alt=\"Ch\u1ee9ng ch\u1ec9 SSL hosting.com\" class=\"w-12 object-contain !dark-filter08\" title=\"\">\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<!-- \u5546\u5bb6\u4fe1\u606f -->\r\n\t\t\t<div class=\"px-4 pt-2 flex-grow\">\r\n\t\t\t\t<div class=\"flex justify-between items-start mb-2\">\r\n\t\t\t\t\t<strong class=\"text-xl font-bold\">Ch\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\t<span class=\"text-gray-500 dark:text-gray-300 !text-sm p-4 pb-0\">Ch\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<div class=\"flex flex-col gap-4 md:gap-6 justify-between p-4\"> \r\n\t\t\t<!-- \u6807\u7b7e -->\r\n\t\t\t\t\t\t\r\n\t\t\t<!-- \u6d3b\u52a8\u548c\u94fe\u63a5 --> \r\n\t\t\t<div class=\"flex justify-between items-center gap-3 flex-col\">\r\n\t\t\t\t\t\t\t\t<div class=\"text-gray-500 dark:text-gray-300 !text-sm line-clamp-1\">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\t<a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/hosting-com-ssl-certificates\/\" class=\"flex justify-end font-bold !text-lg !text-blue-600 dark:!text-blue-500\">Truy 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<!-- \u91cd\u590d\u5668\u5faa\u73af\u7ed3\u675f -->\r\n<\/div>\r\n\r\n\r\n\n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 v\u00e0 chu\u1ed7i tin c\u1eady<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i sao tr\u00ecnh duy\u1ec7t tin t\u01b0\u1edfng ch\u1ee9ng ch\u1ec9 do m\u00e1y ch\u1ee7 g\u1eedi? \u0110i\u1ec1u n\u00e0y d\u1ef1a v\u00e0o m\u1ed9t h\u1ec7 th\u1ed1ng tin c\u1eady c\u00f3 t\u00ean l\u00e0 \u201cc\u01a1 s\u1edf h\u1ea1 t\u1ea7ng kh\u00f3a c\u00f4ng khai\u201d. Ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c c\u1ea5p b\u1edfi c\u00e1c t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 \u0111\u01b0\u1ee3c tin c\u1eady b\u1edfi h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 tr\u00ecnh duy\u1ec7t to\u00e0n c\u1ea7u. Tr\u01b0\u1edbc khi c\u1ea5p, t\u1ed5 ch\u1ee9c CA s\u1ebd x\u00e1c minh quy\u1ec1n ki\u1ec3m so\u00e1t t\u00ean mi\u1ec1n c\u1ee7a ng\u01b0\u1eddi \u0111\u0103ng k\u00fd, th\u1eadm ch\u00ed c\u1ea3 t\u00ednh x\u00e1c th\u1ef1c c\u1ee7a t\u1ed5 ch\u1ee9c. Tr\u00ecnh duy\u1ec7t \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n c\u00e1c ch\u1ee9ng ch\u1ec9 g\u1ed1c c\u1ee7a c\u00e1c CA \u0111\u00e1ng tin c\u1eady n\u00e0y, c\u00f3 th\u1ec3 x\u00e1c minh xem ch\u1ee9ng ch\u1ec9 trang web c\u00f3 \u0111\u01b0\u1ee3c c\u1ea5p b\u1edfi CA \u0111\u00e1ng tin c\u1eady hay kh\u00f4ng, c\u00f2n hi\u1ec7u l\u1ef1c kh\u00f4ng, c\u00f3 kh\u1edbp v\u1edbi t\u00ean mi\u1ec1n truy c\u1eadp kh\u00f4ng, t\u1eeb \u0111\u00f3 thi\u1ebft l\u1eadp s\u1ef1 tin c\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL ch\u00ednh v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean m\u1ee9c \u0111\u1ed9 x\u00e1c minh v\u00e0 ph\u1ea1m vi bao ph\u1ee7, ch\u1ee9ng ch\u1ec9 SSL ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i x\u00e1c minh t\u00ean mi\u1ec1n, lo\u1ea1i x\u00e1c minh t\u1ed5 ch\u1ee9c, lo\u1ea1i x\u00e1c minh m\u1edf r\u1ed9ng v\u00e0 ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n\/Wildcard, \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u b\u1ea3o m\u1eadt trong c\u00e1c t\u00ecnh hu\u1ed1ng kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u00ean mi\u1ec1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 DV l\u00e0 lo\u1ea1i ch\u1ee9ng ch\u1ec9 SSL c\u01a1 b\u1ea3n nh\u1ea5t. CA ch\u1ec9 x\u00e1c minh quy\u1ec1n ki\u1ec3m so\u00e1t t\u00ean mi\u1ec1n c\u1ee7a ng\u01b0\u1eddi n\u1ed9p \u0111\u01a1n (th\u01b0\u1eddng th\u00f4ng qua email ho\u1eb7c b\u1ea3n ghi ph\u00e2n gi\u1ea3i DNS). T\u1ed1c \u0111\u1ed9 c\u1ea5p ph\u00e1t nhanh, chi ph\u00ed th\u1ea5p, ph\u00f9 h\u1ee3p v\u1edbi trang web c\u00e1 nh\u00e2n, blog ho\u1eb7c m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m. N\u00f3 cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 ch\u1ee9c n\u0103ng m\u00e3 h\u00f3a, nh\u01b0ng thanh \u0111\u1ecba ch\u1ec9 tr\u00ecnh duy\u1ec7t ch\u1ec9 hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng h\u00ecnh \u1ed5 kh\u00f3a, kh\u00f4ng hi\u1ec3n th\u1ecb t\u00ean c\u00f4ng ty.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c t\u1ed5 ch\u1ee9c v\u00e0 ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c m\u1edf r\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 OV, tr\u00ean c\u01a1 s\u1edf x\u00e1c minh DV, b\u1ed5 sung vi\u1ec7c xem x\u00e9t nghi\u00eam ng\u1eb7t t\u00ednh x\u00e1c th\u1ef1c ph\u00e1p l\u00fd c\u1ee7a t\u1ed5 ch\u1ee9c n\u1ed9p \u0111\u01a1n (nh\u01b0 c\u00f4ng ty, c\u01a1 quan ch\u00ednh ph\u1ee7), bao g\u1ed3m ki\u1ec3m tra th\u00f4ng tin \u0111\u0103ng k\u00fd kinh doanh. Ch\u1ee9ng ch\u1ec9 EV l\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c x\u00e1c minh nghi\u00eam ng\u1eb7t nh\u1ea5t, ngo\u00e0i x\u00e1c th\u1ef1c t\u1ed5 ch\u1ee9c, c\u00f2n c\u1ea7n \u0111i\u1ec1u tra n\u1ec1n t\u1ea3ng chi ti\u1ebft h\u01a1n. Sau khi tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 EV, thanh \u0111\u1ecba ch\u1ec9 c\u1ee7a c\u00e1c tr\u00ecnh duy\u1ec7t ph\u1ed5 bi\u1ebfn kh\u00f4ng ch\u1ec9 hi\u1ec3n th\u1ecb bi\u1ec3u t\u01b0\u1ee3ng \u1ed5 kh\u00f3a m\u00e0 c\u00f2n tr\u1ef1c ti\u1ebfp hi\u1ec3n th\u1ecb t\u00ean c\u00f4ng ty m\u00e0u xanh l\u00e1 c\u00e2y, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c trang web \u0111\u00f2i h\u1ecfi \u0111\u1ed9 tin c\u1eady c\u1ef1c cao nh\u01b0 th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, t\u00e0i ch\u00ednh.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-website-security-search-engine-ranking\/\">Ch\u1ee9ng ch\u1ec9 SSL: B\u01b0\u1edbc quan tr\u1ecdng \u0111\u1ec3 b\u1ea3o v\u1ec7 an to\u00e0n trang web v\u00e0 n\u00e2ng cao th\u1ee9 h\u1ea1ng tr\u00ean c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ee9ng ch\u1ec9 k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n v\u00e0 ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n s\u1eed d\u1ee5ng m\u1ed9t d\u1ea5u sao \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u1ed9t t\u00ean mi\u1ec1n ch\u00ednh v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n ph\u1ee5 c\u1ea5p m\u1ed9t c\u1ee7a n\u00f3, v\u00ed d\u1ee5 <code data-no-auto-translation=\"\">*.example.com<\/code> c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 <code data-no-auto-translation=\"\">blog.example.com<\/code>\u3001<code data-no-auto-translation=\"\">shop.example.com<\/code>v.v., qu\u1ea3n l\u00fd r\u1ea5t thu\u1eadn ti\u1ec7n. Ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n cho ph\u00e9p b\u1ea3o v\u1ec7 nhi\u1ec1u t\u00ean mi\u1ec1n ho\u00e0n to\u00e0n kh\u00e1c nhau trong m\u1ed9t ch\u1ee9ng ch\u1ec9 duy nh\u1ea5t, v\u00ed d\u1ee5 <code data-no-auto-translation=\"\">example.com<\/code>\u3001<code data-no-auto-translation=\"\">example.net<\/code> \u548c <code data-no-auto-translation=\"\">anothersite.org<\/code>. Hai lo\u1ea1i n\u00e0y cung c\u1ea5p gi\u1ea3i ph\u00e1p linh ho\u1ea1t v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed cho c\u00e1c doanh nghi\u1ec7p c\u00f3 c\u1ea5u tr\u00fac t\u00ean mi\u1ec1n ph\u1ee9c t\u1ea1p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 \u0111\u0103ng k\u00fd v\u00e0 tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ea5y v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL l\u00e0 m\u1ed9t quy tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng, t\u1eeb vi\u1ec7c t\u1ea1o c\u1eb7p kh\u00f3a \u0111\u1ebfn c\u1ea5u h\u00ecnh cu\u1ed1i c\u00f9ng tr\u00ean m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: T\u1ea1o Y\u00eau c\u1ea7u K\u00fd Ch\u1ee9ng ch\u1ec9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u ti\u00ean, h\u00e3y t\u1ea1o m\u1ed9t c\u1eb7p kh\u00f3a m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng (kh\u00f3a ri\u00eang t\u01b0 v\u00e0 kh\u00f3a c\u00f4ng khai) tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n. Kh\u00f3a ri\u00eang t\u01b0 ph\u1ea3i \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef an to\u00e0n tr\u00ean m\u00e1y ch\u1ee7 v\u00e0 tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng ti\u1ebft l\u1ed9. Sau \u0111\u00f3, s\u1eed d\u1ee5ng kh\u00f3a ri\u00eang t\u01b0 \u0111\u1ec3 t\u1ea1o m\u1ed9t t\u1ec7p y\u00eau c\u1ea7u k\u00fd ch\u1ee9ng ch\u1ec9. T\u1ec7p CSR ch\u1ee9a th\u00f4ng tin t\u00ean mi\u1ec1n, t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n c\u00f9ng v\u1edbi kh\u00f3a c\u00f4ng khai. T\u1ec7p CSR n\u00e0y gi\u1ed1ng nh\u01b0 m\u1ed9t \u201c\u0111\u01a1n \u0111\u0103ng k\u00fd ch\u1ee9ng ch\u1ec9\u201d m\u00e0 b\u1ea1n n\u1ed9p cho t\u1ed5 ch\u1ee9c CA.<\/p>\n<!-- AUTO_SYNCED_PATTERN_INSERT_START -->\n\n  <div class=\"flex justify-between items-center flex-col lg:flex-row xl:flex-col 2xl:flex-row gap-6 sm:gap-8 rounded-lg border border-gray-200 dark:border-gray-700 p-4 mb-8 lg:mb-10 sm:p-6 bg-white dark:bg-gray-750 shadow-md transition-colors duration-300\"\n         data-link=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-ssl-certificates\/\">\n\n      <div class=\"flex flex-col gap-3 gap-4 sm:gap-6 w-full\">\n        <strong class=\"text-2xl font-semibold text-gray-900 dark:text-gray-200\">Ch\u1ee9ng ch\u1ec9 SSL c\u1ee7a UltaHost<\/strong>\n        <div class=\"text-gray-600 dark:text-gray-300 word-word\">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      <div class=\"flex items-center flex-col md:flex-row lg:flex-col xl:flex-row 2xl:flex-col gap-6 shrink-0\">\n                  <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-ssl-certificates\/\">\n                          <!-- \u767d\u5929 -->\n              <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227020448.webp\" alt=\"Logo ch\u1ee9ng ch\u1ec9 SSL\" class=\"content-promotion-card-icon h-9 min-h-9 dark:hidden\" title=\"\">\n              <!-- \u591c\u95f4 -->\n              <img decoding=\"async\" src=\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251229052118.webp\" alt=\"Logo ch\u1ee9ng ch\u1ec9 SSL\" class=\"content-promotion-card-icon h-9 min-h-9 hidden dark:block\" title=\"\">\n                      <\/a>\n          \n        <a href=\"https:\/\/www.likacloud.com\/vi\/tolink\/ultahost-ssl-certificates\/\"\n           class=\"bg-blue-500 w-full md:w-auto lg:w-full xl:w-auto 2xl:w-full text-center !text-white dark:!text-gray-200 !px-5 !py-1.5 rounded-full hover:bg-blue-600 transition-colors\">\n          Truy c\u1eadp UltaHost        <\/a>\n      <\/div>\n    <\/div>\n\n    \n<!-- AUTO_SYNCED_PATTERN_INSERT_END -->\n\n\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc hai: N\u1ed9p \u0111\u01a1n v\u00e0 x\u00e1c minh cho CA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">G\u1eedi CSR \u0111\u00e3 t\u1ea1o cho t\u1ed5 ch\u1ee9c c\u1ea5p ch\u1ee9ng ch\u1ec9 m\u00e0 b\u1ea1n ch\u1ecdn. T\u00f9y theo lo\u1ea1i ch\u1ee9ng ch\u1ec9 b\u1ea1n mua, CA s\u1ebd kh\u1edfi \u0111\u1ed9ng quy tr\u00ecnh x\u00e1c th\u1ef1c t\u01b0\u01a1ng \u1ee9ng. \u0110\u1ed1i v\u1edbi ch\u1ee9ng ch\u1ec9 DV, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n th\u00eam m\u1ed9t b\u1ea3n ghi DNS c\u1ee5 th\u1ec3 v\u00e0o t\u00ean mi\u1ec1n theo h\u01b0\u1edbng d\u1eabn, ho\u1eb7c nh\u1eadn m\u1ed9t email x\u00e1c th\u1ef1c g\u1eedi \u0111\u1ebfn h\u1ed9p th\u01b0 qu\u1ea3n tr\u1ecb vi\u00ean c\u1ee7a t\u00ean mi\u1ec1n \u0111\u00f3 v\u00e0 nh\u1ea5p x\u00e1c nh\u1eadn. Ch\u1ee9ng ch\u1ec9 OV\/EV y\u00eau c\u1ea7u n\u1ed9p c\u00e1c t\u00e0i li\u1ec7u ph\u00e1p l\u00fd nh\u01b0 gi\u1ea5y ph\u00e9p kinh doanh \u0111\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t th\u1ee7 c\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc ba: T\u1ea3i xu\u1ed1ng v\u00e0 c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi x\u00e1c th\u1ef1c th\u00e0nh c\u00f4ng, CA s\u1ebd g\u1eedi cho b\u1ea1n t\u1ec7p ch\u1ee9ng ch\u1ec9 SSL \u0111\u00e3 k\u00fd. Th\u00f4ng th\u01b0\u1eddng, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t t\u1ec7p ch\u1ee9ng ch\u1ec9 ch\u1ee9a th\u00f4ng tin t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n (v\u00ed d\u1ee5: <code data-no-auto-translation=\"\">yourdomain.crt<\/code>v\u00e0 c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t t\u1ec7p chu\u1ed7i ch\u1ee9ng ch\u1ec9 trung gian. B\u1ea1n c\u1ea7n c\u1ea5u h\u00ecnh c\u00e1c t\u1ec7p n\u00e0y c\u00f9ng v\u1edbi kh\u00f3a ri\u00eang t\u01b0 \u0111\u01b0\u1ee3c t\u1ea1o \u1edf b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean v\u00e0o ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 web c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 4: C\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 v\u00e0 b\u1eaft bu\u1ed9c HTTPS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c ph\u1ea7n m\u1ec1m m\u00e1y ch\u1ee7 nh\u01b0 Nginx, Apache ho\u1eb7c IIS, ch\u1ec9 \u0111\u1ecbnh \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ebfn t\u1ec7p ch\u1ee9ng ch\u1ec9 v\u00e0 kh\u00f3a ri\u00eang t\u01b0, v\u00e0 l\u1eafng nghe c\u1ed5ng 443. Sau khi c\u1ea5u h\u00ecnh xong, kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5 m\u00e1y ch\u1ee7 \u0111\u1ec3 HTTPS c\u00f3 hi\u1ec7u l\u1ef1c. Cu\u1ed1i c\u00f9ng, b\u01b0\u1edbc quan tr\u1ecdng l\u00e0 thi\u1ebft l\u1eadp chuy\u1ec3n h\u01b0\u1edbng 301 t\u1eeb HTTP sang HTTPS, \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0 thu th\u1eadp th\u00f4ng tin c\u1ee7a c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm \u0111\u1ec1u h\u01b0\u1edbng \u0111\u1ebfn phi\u00ean b\u1ea3n HTTPS an to\u00e0n, tr\u00e1nh n\u1ed9i dung tr\u00f9ng l\u1eb7p.<\/p>\n<!-- AUTO_INTERNAL_LINKS_START --><p>\u0110\u1ecdc th\u00eam <a href=\"https:\/\/www.likacloud.com\/vi\/knowledge\/ssl-certificate\/ssl-certificate-guide-how-it-works-installation-configuration\/\">H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 ch\u1ee9ng ch\u1ec9 SSL: T\u1eeb nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng \u0111\u1ebfn c\u00e0i \u0111\u1eb7t c\u1ea5u h\u00ecnh, \u0111\u1ea3m b\u1ea3o truy\u1ec1n t\u1ea3i trang web an to\u00e0n<\/a>\u3002<\/p><!-- AUTO_INTERNAL_LINKS_END -->\n\n\n\n\n<h2 class=\"wp-block-heading\">Chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o tr\u00ec v\u00e0 qu\u1ea3n l\u00fd ch\u1ee9ng ch\u1ec9 SSL<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t l\u1ea7n m\u00e3i m\u00e3i, qu\u1ea3n l\u00fd v\u00f2ng \u0111\u1eddi hi\u1ec7u qu\u1ea3 l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ea3m b\u1ea3o an ninh li\u00ean t\u1ee5c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u00e1m s\u00e1t th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c v\u00e0 gia h\u1ea1n k\u1ecbp th\u1eddi<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 SSL c\u00f3 th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c r\u00f5 r\u00e0ng (hi\u1ec7n t\u1ea1i t\u1ed1i \u0111a l\u00e0 13 th\u00e1ng). Ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n s\u1ebd khi\u1ebfn tr\u00ecnh duy\u1ec7t hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o \u201ckh\u00f4ng an to\u00e0n\u201d, \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn vi\u1ec7c truy c\u1eadp website. C\u1ea7n ph\u1ea3i thi\u1ebft l\u1eadp c\u01a1 ch\u1ebf gi\u00e1m s\u00e1t, kh\u1edfi \u0111\u1ed9ng quy tr\u00ecnh gia h\u1ea1n \u00edt nh\u1ea5t 30 ng\u00e0y tr\u01b0\u1edbc khi ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n. Nhi\u1ec1u CA ho\u1eb7c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u01b0u tr\u1eef cung c\u1ea5p d\u1ecbch v\u1ee5 gia h\u1ea1n t\u1ef1 \u0111\u1ed9ng, c\u00f3 th\u1ec3 tr\u00e1nh hi\u1ec7u qu\u1ea3 r\u1ee7i ro do qu\u00ean.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u01b0u tr\u1eef an to\u00e0n kh\u00f3a v\u00e0 ch\u1ee9ng ch\u1ec9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f3a ri\u00eang t\u01b0 c\u1ee7a m\u00e1y ch\u1ee7 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt. M\u1ed9t khi kh\u00f3a ri\u00eang t\u01b0 b\u1ecb r\u00f2 r\u1ec9, k\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n t\u1ea5n c\u00f4ng trung gian. Ph\u1ea3i \u0111\u1eb7t quy\u1ec1n t\u1ec7p kh\u00f3a ri\u00eang t\u01b0 ch\u1ec9 cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean ho\u1eb7c t\u00e0i kho\u1ea3n h\u1ec7 th\u1ed1ng \u0111\u1ecdc, v\u00e0 l\u01b0u tr\u1eef trong b\u1ea3n sao l\u01b0u ngo\u1ea1i tuy\u1ebfn an to\u00e0n. Thay \u0111\u1ed5i kh\u00f3a \u0111\u1ecbnh k\u1ef3 v\u00e0 c\u1ea5p l\u1ea1i ch\u1ee9ng ch\u1ec9 c\u0169ng l\u00e0 m\u1ed9t th\u1ef1c h\u00e0nh b\u1ea3o m\u1eadt t\u1ed1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Theo d\u00f5i c\u1eadp nh\u1eadt thu\u1eadt to\u00e1n m\u00e3 h\u00f3a v\u00e0 giao th\u1ee9c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n v\u00e0 m\u1eadt m\u00e3 h\u1ecdc, c\u00e1c thu\u1eadt to\u00e1n m\u00e3 h\u00f3a c\u0169 c\u00f3 th\u1ec3 tr\u1edf n\u00ean kh\u00f4ng an to\u00e0n. C\u1ea7n ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7, v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c phi\u00ean b\u1ea3n giao th\u1ee9c SSL\/TLS kh\u00f4ng an to\u00e0n (nh\u01b0 SSL 2.0\/3.0, TLS 1.0) v\u00e0 \u01b0u ti\u00ean s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a m\u1ea1nh. C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 ki\u1ec3m tra SSL tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 qu\u00e9t website, nh\u1eadn b\u00e1o c\u00e1o \u0111\u00e1nh gi\u00e1 c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt chi ti\u1ebft v\u00e0 \u0111\u1ec1 xu\u1ea5t t\u1ed1i \u01b0u h\u00f3a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00f3m l\u1ea1i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 SSL l\u00e0 n\u1ec1n t\u1ea3ng x\u00e2y d\u1ef1ng ni\u1ec1m tin trong kh\u00f4ng gian m\u1ea1ng, th\u00f4ng qua c\u01a1 ch\u1ebf k\u00e9p m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c, b\u1ea3o v\u1ec7 an to\u00e0n d\u1eef li\u1ec7u v\u00e0 n\u00e2ng cao uy t\u00edn website. B\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c hi\u1ec3u nguy\u00ean l\u00fd m\u00e3 h\u00f3a c\u1ee7a n\u00f3, l\u1ef1a ch\u1ecdn lo\u1ea1i ch\u1ee9ng ch\u1ec9 ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean nhu c\u1ea7u b\u1ea3n th\u00e2n, v\u00e0 ho\u00e0n t\u1ea5t quy tr\u00ecnh \u0111\u0103ng k\u00fd, tri\u1ec3n khai v\u00e0 c\u1ea5u h\u00ecnh theo quy chu\u1ea9n. Quan tr\u1ecdng h\u01a1n, c\u1ea7n thi\u1ebft l\u1eadp chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o tr\u00ec d\u00e0i h\u1ea1n, gi\u00e1m s\u00e1t th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c, \u0111\u1ea3m b\u1ea3o an to\u00e0n kh\u00f3a v\u00e0 theo k\u1ecbp c\u00e1c c\u1eadp nh\u1eadt giao th\u1ee9c b\u1ea3o m\u1eadt. Trong b\u1ed1i c\u1ea3nh theo \u0111u\u1ed5i tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 th\u1ee9 h\u1ea1ng c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm ng\u00e0y nay, vi\u1ec7c tri\u1ec3n khai v\u00e0 b\u1ea3o tr\u00ec ch\u1ee9ng ch\u1ec9 SSL \u0111\u00fang c\u00e1ch kh\u00f4ng c\u00f2n l\u00e0 t\u00f9y ch\u1ecdn, m\u00e0 l\u00e0 k\u1ef9 n\u0103ng v\u00e0 tr\u00e1ch nhi\u1ec7m b\u1eaft bu\u1ed9c c\u1ee7a m\u1ed7i ng\u01b0\u1eddi qu\u1ea3n l\u00fd website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea5t c\u1ea3 c\u00e1c trang web \u0111\u1ec1u ph\u1ea3i c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00fang v\u1eady, hi\u1ec7n nay \u0111\u00e2y \u0111\u00e3 l\u00e0 ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c v\u00e0 th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong ng\u00e0nh. C\u00e1c tr\u00ecnh duy\u1ec7t ph\u1ed5 bi\u1ebfn s\u1ebd \u0111\u00e1nh d\u1ea5u website kh\u00f4ng s\u1eed d\u1ee5ng HTTPS l\u00e0 \u201ckh\u00f4ng an to\u00e0n\u201d, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ef1 tin t\u01b0\u1edfng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Ngo\u00e0i ra, c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm nh\u01b0 Google \u0111\u00e3 kh\u1eb3ng \u0111\u1ecbnh r\u00f5 r\u00e0ng HTTPS l\u00e0 y\u1ebfu t\u1ed1 t\u00edch c\u1ef1c trong x\u1ebfp h\u1ea1ng t\u00ecm ki\u1ebfm. Nhi\u1ec1u c\u00f4ng ngh\u1ec7 Web hi\u1ec7n \u0111\u1ea1i (nh\u01b0 HTTP\/2, m\u1ed9t s\u1ed1 API tr\u00ecnh duy\u1ec7t) c\u0169ng y\u00eau c\u1ea7u website ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng HTTPS m\u1edbi c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">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<p class=\"wp-block-paragraph\">\u514d\u8d39\u8bc1\u4e66\uff08\u5982Let\u2018s Encrypt\u9881\u53d1\u7684\uff09\u901a\u5e38\u662fDV\u7c7b\u578b\uff0c\u63d0\u4f9b\u4e86\u4e0e\u4ed8\u8d39DV\u8bc1\u4e66\u76f8\u540c\u7684\u52a0\u5bc6\u5f3a\u5ea6\uff0c\u975e\u5e38\u9002\u5408\u4e2a\u4eba\u548c\u5c0f\u578b\u9879\u76ee\u3002\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u552e\u540e\u670d\u52a1\u3001\u4fdd\u9669\u8d54\u4ed8\u548c\u9a8c\u8bc1\u5468\u671f\u3002\u4ed8\u8d39\u8bc1\u4e66\u901a\u5e38\u63d0\u4f9b\u6280\u672f\u652f\u6301\u3001\u57df\u540d\u88ab\u76d7\u7528\u7684\u4fdd\u9669\u8d54\u507f\uff0c\u800cOV\/EV\u8bc1\u4e66\u63d0\u4f9b\u7684\u7ec4\u7ec7\u8eab\u4efd\u5c55\u793a\u529f\u80fd\uff0c\u5219\u662f\u514d\u8d39\u8bc1\u4e66\u6240\u4e0d\u5177\u5907\u7684\u3002\u5bf9\u4e8e\u5546\u4e1a\u7f51\u7ad9\uff0cOV\u6216EV\u8bc1\u4e66\u5728\u5efa\u7acb\u54c1\u724c\u4fe1\u4efb\u65b9\u9762\u4ef7\u503c\u663e\u8457\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sau khi c\u00e0i \u0111\u1eb7t ch\u1ee9ng ch\u1ec9 SSL, t\u1ed1c \u0111\u1ed9 truy c\u1eadp website c\u00f3 b\u1ecb ch\u1eadm \u0111i kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh b\u1eaft tay SSL s\u1ebd t\u0103ng th\u00eam m\u1ed9t ch\u00fat th\u1eddi gian kh\u1ee9 h\u1ed3i m\u1ea1ng, c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u1ea5t nh\u1eb9 \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 k\u1ebft n\u1ed1i l\u1ea7n \u0111\u1ea7u. Tuy nhi\u00ean, giao th\u1ee9c v\u00e0 c\u00f4ng ngh\u1ec7 TLS hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 t\u1ed1i \u01b0u h\u00f3a \u0111\u00e1ng k\u1ec3 qu\u00e1 tr\u00ecnh n\u00e0y. Quan tr\u1ecdng h\u01a1n, vi\u1ec7c k\u00edch ho\u1ea1t HTTPS l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 s\u1eed d\u1ee5ng giao th\u1ee9c HTTP\/2, v\u00e0 c\u00e1c t\u00ednh n\u0103ng nh\u01b0 gh\u00e9p k\u00eanh, n\u00e9n ti\u00eau \u0111\u1ec1 c\u1ee7a HTTP\/2 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 t\u1ea3i trang. Do \u0111\u00f3, nh\u00ecn chung, tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL th\u01b0\u1eddng mang l\u1ea1i tr\u1ea3i nghi\u1ec7m hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N\u00ean ch\u1ecdn ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n hay ch\u1ee9ng ch\u1ec9 k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu doanh nghi\u1ec7p c\u1ee7a b\u1ea1n bao g\u1ed3m nhi\u1ec1u t\u00ean mi\u1ec1n ch\u00ednh ho\u00e0n to\u00e0n kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t trang web c\u00f4ng ty ch\u00ednh th\u1ee9c, m\u1ed9t c\u1eeda h\u00e0ng tr\u1ef1c tuy\u1ebfn v\u00e0 m\u1ed9t c\u1ed5ng th\u00f4ng tin kh\u00e1ch h\u00e0ng, th\u00ec ch\u1ee9ng ch\u1ec9 \u0111a t\u00ean mi\u1ec1n l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t. N\u1ebfu d\u1ecbch v\u1ee5 c\u1ee7a b\u1ea1n ch\u1ee7 y\u1ebfu n\u1eb1m d\u01b0\u1edbi m\u1ed9t t\u00ean mi\u1ec1n ch\u00ednh, nh\u01b0ng c\u00f3 nhi\u1ec1u t\u00ean mi\u1ec1n ph\u1ee5 (v\u00ed d\u1ee5: <code data-no-auto-translation=\"\">mail.example.com<\/code>\uff0c <code data-no-auto-translation=\"\">app.example.com<\/code>\uff0c <code data-no-auto-translation=\"\">blog.example.com<\/code>), th\u00ec m\u1ed9t ch\u1ee9ng ch\u1ec9 k\u00fd t\u1ef1 \u0111\u1ea1i di\u1ec7n c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 v\u0129nh vi\u1ec5n t\u1ea5t c\u1ea3 c\u00e1c t\u00ean mi\u1ec1n ph\u1ee5 c\u00f9ng c\u1ea5p hi\u1ec7n c\u00f3 v\u00e0 trong t\u01b0\u01a1ng lai, v\u1edbi chi ph\u00ed qu\u1ea3n l\u00fd th\u1ea5p nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u1eadu qu\u1ea3 c\u1ee7a vi\u1ec7c ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9ng ch\u1ec9 h\u1ebft h\u1ea1n s\u1ebd khi\u1ebfn tr\u00ecnh duy\u1ec7t hi\u1ec3n th\u1ecb trang c\u1ea3nh b\u00e1o \u201cKh\u00f4ng an to\u00e0n\u201d n\u1ed5i b\u1eadt, ng\u0103n ch\u1eb7n ng\u01b0\u1eddi d\u00f9ng ti\u1ebfp t\u1ee5c truy c\u1eadp, d\u1eabn \u0111\u1ebfn gi\u00e1n \u0111o\u1ea1n kinh doanh, m\u1ea5t kh\u00e1ch h\u00e0ng v\u00e0 t\u1ed5n h\u1ea1i danh ti\u1ebfng th\u01b0\u01a1ng hi\u1ec7u. C\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u0169ng c\u00f3 th\u1ec3 h\u1ea1 th\u1ee9 h\u1ea1ng trang web c\u1ee7a b\u1ea1n. V\u00ec v\u1eady, h\u00e3y \u0111\u1ea3m b\u1ea3o thi\u1ebft l\u1eadp nh\u1eafc nh\u1edf ho\u1eb7c b\u1eadt t\u00ednh n\u0103ng gia h\u1ea1n t\u1ef1 \u0111\u1ed9ng \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng n\u00e0y.<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u00e0i vi\u1ebft tr\u00ecnh b\u00e0y t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u1ee9ng ch\u1ec9 SSL, c\u00f4ng c\u1ee5 c\u1ed1t l\u00f5i \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u00e3 h\u00f3a HTTPS, trong vi\u1ec7c thi\u1ebft l\u1eadp ni\u1ec1m tin ng\u01b0\u1eddi d\u00f9ng. Gi\u1ea3i th\u00edch chi ti\u1ebft nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng k\u1ebft h\u1ee3p gi\u1eefa m\u00e3 h\u00f3a b\u1ea5t \u0111\u1ed1i x\u1ee9ng v\u00e0 \u0111\u1ed1i x\u1ee9ng, chu\u1ed7i tin c\u1eady c\u1ee7a c\u01a1 quan c\u1ea5p ch\u1ee9ng ch\u1ec9, \u0111\u1ed3ng th\u1eddi gi\u1edbi thi\u1ec7u \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 ph\u1ea1m vi \u00e1p d\u1ee5ng c\u1ee7a c\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 ch\u00ednh nh\u01b0 DV, OV, EV. Cu\u1ed1i c\u00f9ng, t\u00f3m t\u1eaft quy tr\u00ecnh \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 \u0111\u0103ng k\u00fd v\u00e0 tri\u1ec3n khai ch\u1ee9ng ch\u1ec9 SSL.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[2073,11,329,319],"knowledge_category":[277],"class_list":["post-12378869","knowledge_post","type-knowledge_post","status-publish","hentry","tag-https-protocol","tag-ssl-certificate","tag-data-encryption","tag-website-security","knowledge_category-ssl-certificate"],"acf":{"site_seo_keywords":"SSL\u8bc1\u4e66,HTTPS\u52a0\u5bc6,\u7f51\u7ad9\u5b89\u5168,\u8bc1\u4e66\u7c7b\u578b,\u90e8\u7f72\u6d41\u7a0b,CA\u673a\u6784,\u975e\u5bf9\u79f0\u52a0\u5bc6,SSL\u8bc1\u4e66\u7533\u8bf7\u6307\u5357"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12378869","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\/12378869\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12378869"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12378869"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12378869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}