{"id":15585,"date":"2024-06-04T11:05:34","date_gmt":"2024-06-04T04:05:34","guid":{"rendered":"https:\/\/blog.tinohost.com\/?p=274"},"modified":"2026-10-28T11:39:55","modified_gmt":"2026-10-28T04:39:55","slug":"cloudflare-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/cloudflare-la-gi\/","title":{"rendered":"Cloudflare l\u00e0 g\u00ec? C\u00e1ch d\u00f9ng Cloudflare cho website t\u1eeb A\u2013Z"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Cloudflare l\u00e0 d\u1ecbch v\u1ee5 \u0111\u1ee9ng gi\u1eefa ng\u01b0\u1eddi truy c\u1eadp v\u00e0 m\u00e1y ch\u1ee7 website, g\u1ed3m DNS, m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) v\u00e0 l\u1edbp l\u1ecdc t\u1ea5n c\u00f4ng. Khi t\u00ean mi\u1ec1n d\u00f9ng nameserver c\u1ee7a Cloudflare v\u00e0 b\u1ea3n ghi web b\u1eadt proxy, m\u1ecdi l\u01b0\u1ee3t truy c\u1eadp \u0111i qua m\u00e1y ch\u1ee7 Cloudflare tr\u01b0\u1edbc: n\u1ed9i dung t\u0129nh \u0111\u01b0\u1ee3c tr\u1ea3 t\u1eeb b\u1ed9 \u0111\u1ec7m, l\u01b0u l\u01b0\u1ee3ng x\u1ea5u b\u1ecb ch\u1eb7n, r\u1ed3i m\u1edbi t\u1edbi m\u00e1y ch\u1ee7 g\u1ed1c.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare g\u1eafn ch\u1eb7t v\u1edbi <a href=\"https:\/\/tino.vn\/blog\/ten-mien-la-gi\/\">t\u00ean mi\u1ec1n<\/a>: mu\u1ed1n d\u00f9ng, b\u1ea1n chuy\u1ec3n ph\u1ea7n qu\u1ea3n l\u00fd DNS c\u1ee7a t\u00ean mi\u1ec1n sang Cloudflare. DNS l\u00e0 h\u1ec7 th\u1ed1ng d\u1ecbch t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP (xem <a href=\"https:\/\/tino.vn\/blog\/dns-la-gi\/\">DNS l\u00e0 g\u00ec<\/a>). B\u00e0i vi\u1ebft gi\u1ea3i th\u00edch Cloudflare ho\u1ea1t \u0111\u1ed9ng th\u1ebf n\u00e0o, khi n\u00e0o n\u00ean v\u00e0 kh\u00f4ng n\u00ean d\u00f9ng, r\u1ed3i \u0111i qua t\u1eebng b\u01b0\u1edbc th\u00eam website v\u00e0o Cloudflare.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>C\u1eadp nh\u1eadt 10\/2026: s\u1ed1 li\u1ec7u m\u1ea1ng l\u01b0\u1edbi v\u00e0 c\u00e1c b\u01b0\u1edbc \u0111\u1ed1i chi\u1ebfu t\u00e0i li\u1ec7u Cloudflare ng\u00e0y 27\/10\/2026. \u1ea2nh ch\u1ee5p th\u1ef1c hi\u1ec7n th\u00e1ng 5\/2024; dashboard hi\u1ec7n \u0111\u1ed5i t\u00ean m\u1ed9t s\u1ed1 n\u00fat (v\u00ed d\u1ee5 &#8220;Add a site&#8221; nay l\u00e0 &#8220;Onboard a domain&#8221;) nh\u01b0ng th\u1ee9 t\u1ef1 b\u01b0\u1edbc gi\u1eef nguy\u00ean.<\/em><\/p>\n\n\n\n<h2 id=\"Cloudflare_l\u00e0_g\u00ec?\">Cloudflare l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare l\u00e0 c\u00f4ng ty h\u1ea1 t\u1ea7ng Internet cung c\u1ea5p DNS, CDN, ch\u1ed1ng DDoS, t\u01b0\u1eddng l\u1eeda \u1ee9ng d\u1ee5ng web (WAF) v\u00e0 ch\u1ee9ng ch\u1ec9 SSL cho website, trong \u0111\u00f3 g\u00f3i Free d\u00f9ng \u0111\u01b0\u1ee3c cho website c\u00e1 nh\u00e2n. Theo <a href=\"https:\/\/www.cloudflare.com\/network\/\" target=\"_blank\" rel=\"noopener nofollow\">trang m\u1ea1ng l\u01b0\u1edbi c\u1ee7a Cloudflare<\/a> ng\u00e0y 27\/10\/2026, Cloudflare c\u00f3 m\u00e1y ch\u1ee7 \u1edf 348 th\u00e0nh ph\u1ed1, trong \u0111\u00f3 c\u00f3 \u0110\u00e0 N\u1eb5ng, H\u00e0 N\u1ed9i v\u00e0 TP.HCM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec3m c\u1ea7n hi\u1ec3u khi n\u00f3i &#8220;d\u00f9ng Cloudflare&#8221; l\u00e0 Cloudflare kh\u00f4ng l\u01b0u m\u00e3 ngu\u1ed3n hay c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u1ee7a website. Website v\u1eabn ch\u1ea1y tr\u00ean <a href=\"https:\/\/tino.vn\/blog\/hosting-la-gi\/\">hosting<\/a> ho\u1eb7c VPS nh\u01b0 c\u0169; Cloudflare ch\u1ec9 \u0111\u1ee9ng ph\u00eda tr\u01b0\u1edbc, gi\u1ed1ng m\u1ed9t tr\u1ea1m ki\u1ec3m so\u00e1t ki\u00eam kho \u0111\u1ec7m. Ph\u1ea7n <a href=\"https:\/\/tino.vn\/blog\/cdn-la-gi\/\">CDN<\/a> l\u00e0 m\u1ea1ng m\u00e1y ch\u1ee7 \u0111\u1eb7t \u1edf nhi\u1ec1u n\u01a1i \u0111\u1ec3 tr\u1ea3 n\u1ed9i dung t\u1eeb \u0111i\u1ec3m g\u1ea7n ng\u01b0\u1eddi xem.<\/p>\n\n\n\n<h3 id=\"Cloudflare_ho\u1ea1t_\u0111\u1ed9ng_nh\u01b0_th\u1ebf_n\u00e0o?\">Cloudflare ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch tr\u1ea3 l\u1eddi truy v\u1ea5n DNS c\u1ee7a t\u00ean mi\u1ec1n b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ch\u00ednh Cloudflare thay cho IP m\u00e1y ch\u1ee7 g\u1ed1c, khi b\u1ea3n ghi \u1edf ch\u1ebf \u0111\u1ed9 Proxied (\u0111\u00e1m m\u00e2y cam). Tr\u00ecnh duy\u1ec7t v\u00ec v\u1eady k\u1ebft n\u1ed1i t\u1edbi m\u00e1y ch\u1ee7 bi\u00ean c\u1ee7a Cloudflare, n\u01a1i y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c l\u1ecdc, m\u00e3 ho\u00e1 HTTPS v\u00e0 ph\u1ee5c v\u1ee5 t\u1eeb b\u1ed9 \u0111\u1ec7m n\u1ebfu c\u00f3.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1400\" height=\"750\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-proxy-hoat-dong.webp\" alt=\"S\u01a1 \u0111\u1ed3 Proxied v\u00e0 DNS only tr\u00ean Cloudflare: v\u1edbi Proxied (m\u00e2y cam) tr\u00ecnh duy\u1ec7t nh\u1eadn IP Cloudflare, m\u00e1y ch\u1ee7 bi\u00ean l\u1ecdc, cache, c\u1ea5p HTTPS v\u00e0 ch\u1ec9 t\u1edbi m\u00e1y ch\u1ee7 g\u1ed1c khi ch\u01b0a c\u00f3 cache; v\u1edbi DNS only (m\u00e2y x\u00e1m) tr\u00ecnh duy\u1ec7t nh\u1eadn IP th\u1eadt v\u00e0 \u0111i th\u1eb3ng t\u1edbi m\u00e1y g\u1ed1c, kh\u00f4ng l\u1ecdc, l\u1ed9 IP\" class=\"wp-image-132601\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-proxy-hoat-dong.webp 1400w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-proxy-hoat-dong-300x161.webp 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-proxy-hoat-dong-1024x549.webp 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-proxy-hoat-dong-768x411.webp 768w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Theo <a href=\"https:\/\/developers.cloudflare.com\/dns\/manage-dns-records\/reference\/proxied-dns-records\/\" target=\"_blank\" rel=\"noopener nofollow\">t\u00e0i li\u1ec7u Proxied DNS records<\/a>, ch\u1ec9 b\u1ea3n ghi A, AAAA v\u00e0 CNAME b\u1eadt \u0111\u01b0\u1ee3c proxy; MX, TXT lu\u00f4n l\u00e0 DNS only. V\u00ec v\u1eady b\u1ea3n ghi website th\u01b0\u1eddng \u0111\u1ec3 \u0111\u00e1m m\u00e2y cam, c\u00f2n b\u1ea3n ghi mail \u0111\u1ec3 \u0111\u00e1m m\u00e2y x\u00e1m. B\u1ea3n ghi DNS only tr\u1ea3 v\u1ec1 IP th\u1eadt, ai truy v\u1ea5n c\u0169ng th\u1ea5y \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h2 id=\"Cloudflare_d\u00f9ng_\u0111\u1ec3_l\u00e0m_g\u00ec?\">Cloudflare d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng cho b\u1ed1n vi\u1ec7c: t\u0103ng t\u1ed1c t\u1ea3i trang nh\u1edd b\u1ed9 \u0111\u1ec7m \u1edf m\u00e1y ch\u1ee7 bi\u00ean, gi\u1ea3m t\u1ea3i cho m\u00e1y ch\u1ee7 g\u1ed1c, ch\u1eb7n t\u1ea5n c\u00f4ng DDoS v\u00e0 bot x\u1ea5u, v\u00e0 c\u1ea5p HTTPS cho t\u00ean mi\u1ec1n. V\u1edbi website nh\u1ecf, ph\u1ea7n l\u1edbn c\u00e1c vi\u1ec7c n\u00e0y c\u00f3 trong g\u00f3i Free.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-02.png\" alt=\"L\u1ee3i \u00edch c\u1ee7a Cloudflare: t\u0103ng t\u1ed1c website, gi\u1ea3m t\u1ea3i m\u00e1y ch\u1ee7, ch\u1ed1ng DDoS v\u00e0 spam, SSL mi\u1ec5n ph\u00ed, t\u01b0\u1eddng l\u1eeda \u1ee9ng d\u1ee5ng web, c\u00f3 g\u00f3i mi\u1ec5n ph\u00ed v\u00e0 tr\u1ea3 ph\u00ed\" class=\"wp-image-93609\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-02.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-02-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h3 id=\"T\u0103ng_t\u1ed1c_v\u00e0_gi\u1ea3m_t\u1ea3i_cho_m\u00e1y_ch\u1ee7\">T\u0103ng t\u1ed1c v\u00e0 gi\u1ea3m t\u1ea3i cho m\u00e1y ch\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare gi\u1eef b\u1ea3n sao c\u00e1c t\u1ec7p t\u0129nh nh\u01b0 \u1ea3nh, CSS, JavaScript t\u1ea1i m\u00e1y ch\u1ee7 bi\u00ean. L\u01b0\u1ee3t truy c\u1eadp sau \u0111\u01b0\u1ee3c tr\u1ea3 t\u1eeb b\u1ea3n sao n\u00e0y, n\u00ean m\u00e1y ch\u1ee7 g\u1ed1c nh\u1eadn \u00edt y\u00eau c\u1ea7u h\u01a1n v\u00e0 t\u1ed1n \u00edt b\u0103ng th\u00f4ng h\u01a1n. M\u1ee9c ti\u1ebft ki\u1ec7m ph\u1ee5 thu\u1ed9c t\u1ec9 l\u1ec7 n\u1ed9i dung \u0111\u01b0\u1ee3c \u0111\u1ec7m; trang \u0111\u1ed9ng nh\u01b0 gi\u1ecf h\u00e0ng, trang qu\u1ea3n tr\u1ecb m\u1eb7c \u0111\u1ecbnh v\u1eabn \u0111i v\u1ec1 m\u00e1y ch\u1ee7 g\u1ed1c.<\/p>\n\n\n\n<h3 id=\"B\u1ea3o_m\u1eadt:_DDoS,_WAF_v\u00e0_\u1ea9n_IP_m\u00e1y_ch\u1ee7\">B\u1ea3o m\u1eadt: DDoS, WAF v\u00e0 \u1ea9n IP m\u00e1y ch\u1ee7<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u01b0u l\u01b0\u1ee3ng \u0111i qua Cloudflare \u0111\u01b0\u1ee3c l\u1ecdc tr\u01b0\u1edbc khi t\u1edbi m\u00e1y ch\u1ee7, n\u00ean c\u00e1c \u0111\u1ee3t <a href=\"https:\/\/tino.vn\/blog\/ddos-la-gi\/\">t\u1ea5n c\u00f4ng DDoS<\/a> v\u00e0 bot qu\u00e9t l\u1ed7 h\u1ed5ng d\u1eebng \u1edf m\u00e1y ch\u1ee7 bi\u00ean. B\u1ea1n c\u00f3 th\u1ec3 ch\u1eb7n IP, ch\u1eb7n theo qu\u1ed1c gia, gi\u1edbi h\u1ea1n truy c\u1eadp trang \u0111\u0103ng nh\u1eadp b\u1eb1ng quy t\u1eafc WAF. N\u1ebfu website ch\u1ea1y tr\u00ean VPS, xem th\u00eam <a href=\"https:\/\/tino.vn\/blog\/cach-chong-ddos-cho-vps\/\">c\u00e1ch ch\u1ed1ng DDoS cho VPS b\u1eb1ng Cloudflare<\/a> \u0111\u1ec3 ch\u1ec9 cho IP Cloudflare v\u00e0o c\u1ed5ng web.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1eadt HTTPS cho t\u00ean mi\u1ec1n b\u1eb1ng ch\u1ee9ng ch\u1ec9 do Cloudflare c\u1ea5p \u1edf m\u00e1y ch\u1ee7 bi\u00ean;<\/li>\n\n\n<li>Ch\u1eb7n ho\u1eb7c th\u1eed th\u00e1ch truy c\u1eadp theo IP, qu\u1ed1c gia, \u0111\u01b0\u1eddng d\u1eabn;<\/li>\n\n\n<li>T\u01b0\u1eddng l\u1eeda \u1ee9ng d\u1ee5ng web (WAF) v\u1edbi b\u1ed9 quy t\u1eafc c\u00f3 s\u1eb5n v\u00e0 quy t\u1eafc t\u1ef1 vi\u1ebft;<\/li>\n\n\n<li>\u1ea8n IP m\u00e1y ch\u1ee7 g\u1ed1c khi m\u1ecdi b\u1ea3n ghi web \u0111\u1ec1u \u0111\u1ec3 ch\u1ebf \u0111\u1ed9 Proxied.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"Ki\u1ec3m_tra_m\u00e1y_ch\u1ee7_Cloudflare_n\u00e0o_\u0111ang_ph\u1ee5c_v\u1ee5_b\u1ea1n\">Ki\u1ec3m tra m\u00e1y ch\u1ee7 Cloudflare n\u00e0o \u0111ang ph\u1ee5c v\u1ee5 b\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i website d\u00f9ng Cloudflare c\u00f3 \u0111\u01b0\u1eddng d\u1eabn <code>\/cdn-cgi\/trace<\/code> (<a href=\"https:\/\/developers.cloudflare.com\/fundamentals\/reference\/cdn-cgi-endpoint\/\" target=\"_blank\" rel=\"noopener nofollow\">t\u00e0i li\u1ec7u cdn-cgi<\/a>); d\u00f2ng <code>colo=<\/code> l\u00e0 m\u00e3 s\u00e2n bay c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u \u0111ang ph\u1ee5c v\u1ee5. Ch\u00fang t\u00f4i th\u1eed ng\u00e0y 27\/10\/2026 t\u1eeb m\u1ed9t k\u1ebft n\u1ed1i t\u1ea1i Vi\u1ec7t Nam: k\u1ebft qu\u1ea3 <code>loc=VN<\/code> nh\u01b0ng <code>colo=HKG<\/code> (H\u1ed3ng K\u00f4ng), d\u00f9 Cloudflare c\u00f3 \u0111i\u1ec3m \u0111\u1eb7t m\u00e1y t\u1ea1i Vi\u1ec7t Nam. \u0110i\u1ec3m ph\u1ee5c v\u1ee5 th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a nh\u00e0 m\u1ea1ng, n\u00ean n\u00ean ki\u1ec3m b\u1eb1ng ch\u00ednh m\u1ea1ng c\u1ee7a kh\u00e1ch truy c\u1eadp.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>curl -s https:\/\/example.vn\/cdn-cgi\/trace | grep -E \"colo|loc\"<\/code><\/pre>\n\n\n\n<h2 id=\"H\u1ea1n_ch\u1ebf_c\u1ee7a_Cloudflare_v\u00e0_khi_n\u00e0o_kh\u00f4ng_n\u00ean_d\u00f9ng\">H\u1ea1n ch\u1ebf c\u1ee7a Cloudflare v\u00e0 khi n\u00e0o kh\u00f4ng n\u00ean d\u00f9ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0m website nhanh h\u01a1n. Website \u0111\u1eb7t m\u00e1y ch\u1ee7 t\u1ea1i Vi\u1ec7t Nam, kh\u00e1ch ch\u1ee7 y\u1ebfu \u1edf Vi\u1ec7t Nam, c\u00f3 th\u1ec3 ch\u1eadm \u0111i n\u1ebfu l\u01b0\u1ee3t truy c\u1eadp b\u1ecb \u0111\u1ecbnh tuy\u1ebfn ra H\u1ed3ng K\u00f4ng ho\u1eb7c Singapore r\u1ed3i m\u1edbi quay v\u1ec1. Ngo\u00e0i ra, th\u00eam m\u1ed9t l\u1edbp trung gian l\u00e0 th\u00eam m\u1ed9t \u0111i\u1ec3m c\u00f3 th\u1ec3 g\u1eb7p s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0110\u1ecbnh tuy\u1ebfn v\u00f2ng:<\/strong> nh\u01b0 k\u1ebft qu\u1ea3 <code>colo=HKG<\/code> \u1edf tr\u00ean; \u0111o th\u1eddi gian t\u1ea3i tr\u01b0\u1edbc v\u00e0 sau khi b\u1eadt proxy r\u1ed3i m\u1edbi quy\u1ebft \u0111\u1ecbnh.<\/li>\n\n\n<li><strong>Ph\u1ee5 thu\u1ed9c Cloudflare:<\/strong> khi Cloudflare g\u1eb7p s\u1ef1 c\u1ed1, website \u0111ang b\u1eadt proxy c\u0169ng b\u1ecb \u1ea3nh h\u01b0\u1edfng d\u00f9 m\u00e1y ch\u1ee7 g\u1ed1c v\u1eabn ch\u1ea1y.<\/li>\n\n\n<li><strong>T\u01b0\u1eddng l\u1eeda m\u00e1y ch\u1ee7 ch\u1eb7n nh\u1ea7m:<\/strong> m\u1ecdi y\u00eau c\u1ea7u \u0111\u1ebfn t\u1eeb IP Cloudflare; n\u1ebfu t\u01b0\u1eddng l\u1eeda hosting coi c\u00e1c IP n\u00e0y l\u00e0 t\u1ea5n c\u00f4ng, website s\u1ebd l\u1ed7i. C\u1ea7n cho ph\u00e9p d\u1ea3i IP Cloudflare v\u00e0 c\u1ea5u h\u00ecnh ghi nh\u1eadn IP th\u1eadt c\u1ee7a kh\u00e1ch.<\/li>\n\n\n<li><strong>IP g\u1ed1c v\u1eabn c\u00f3 th\u1ec3 l\u1ed9:<\/strong> qua b\u1ea3n ghi DNS only (mail, FTP), l\u1ecbch s\u1eed DNS c\u0169 ho\u1eb7c email g\u1eedi t\u1eeb m\u00e1y ch\u1ee7; \u1ea9n IP kh\u00f4ng thay \u0111\u01b0\u1ee3c vi\u1ec7c b\u1ea3o m\u1eadt m\u00e1y ch\u1ee7.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u1ea7n Cloudflare khi website n\u1ed9i b\u1ed9, \u00edt truy c\u1eadp, m\u00e1y ch\u1ee7 v\u00e0 kh\u00e1ch c\u00f9ng \u1edf Vi\u1ec7t Nam v\u00e0 hosting \u0111\u00e3 c\u00f3 HTTPS c\u00f9ng t\u01b0\u1eddng l\u1eeda. N\u00ean d\u00f9ng khi m\u00e1y ch\u1ee7 \u0111\u1eb7t \u1edf n\u01b0\u1edbc ngo\u00e0i, kh\u00e1ch \u1edf nhi\u1ec1u qu\u1ed1c gia, website hay b\u1ecb bot qu\u00e9t ho\u1eb7c t\u1ea5n c\u00f4ng, ho\u1eb7c b\u1ea1n c\u1ea7n \u1ea9n IP m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h2 id=\"Cloudflare_c\u00f3_mi\u1ec5n_ph\u00ed_kh\u00f4ng?\">Cloudflare c\u00f3 mi\u1ec5n ph\u00ed kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3. Cloudflare c\u00f3 g\u00f3i Free cho website c\u00e1 nh\u00e2n v\u00e0 d\u1ef1 \u00e1n nh\u1ecf, g\u1ed3m DNS, CDN, SSL v\u00e0 ch\u1ed1ng DDoS c\u01a1 b\u1ea3n; c\u00e1c g\u00f3i Pro, Business, Enterprise th\u00eam quy t\u1eafc WAF, t\u1ed1i \u01b0u \u1ea3nh v\u00e0 h\u1ed7 tr\u1ee3. Gi\u00e1 c\u00e1c g\u00f3i thay \u0111\u1ed5i theo th\u1eddi gian, n\u00ean xem tr\u00ean <a href=\"https:\/\/www.cloudflare.com\/plans\/\" target=\"_blank\" rel=\"noopener nofollow\">trang Plans c\u1ee7a Cloudflare<\/a> tr\u01b0\u1edbc khi n\u00e2ng c\u1ea5p.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-chon-goi-che.webp\" alt=\"B\u1ed1n g\u00f3i Free, Pro, Business, Enterprise tr\u00ean trang Cloudflare, ph\u1ea7n gi\u00e1 g\u00f3i tr\u1ea3 ph\u00ed \u0111\u00e3 \u0111\u01b0\u1ee3c che v\u00ec c\u00f3 th\u1ec3 \u0111\u00e3 thay \u0111\u1ed5i\" class=\"wp-image-132599\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-chon-goi-che.webp 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-chon-goi-che-300x171.webp 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h2 id=\"C\u00e1ch_s\u1eed_d\u1ee5ng_Cloudflare_cho_website\">C\u00e1ch s\u1eed d\u1ee5ng Cloudflare cho website<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 d\u00f9ng Cloudflare, b\u1ea1n t\u1ea1o t\u00e0i kho\u1ea3n, th\u00eam t\u00ean mi\u1ec1n, ch\u1ecdn g\u00f3i, ki\u1ec3m tra b\u1ea3n ghi DNS m\u00e0 Cloudflare qu\u00e9t \u0111\u01b0\u1ee3c, r\u1ed3i \u0111\u1ed5i nameserver t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n. Website ch\u1ec9 b\u1eaft \u0111\u1ea7u \u0111i qua Cloudflare khi nameserver m\u1edbi c\u00f3 hi\u1ec7u l\u1ef1c. C\u00e1c b\u01b0\u1edbc d\u01b0\u1edbi \u0111\u00e2y theo <a href=\"https:\/\/developers.cloudflare.com\/fundamentals\/manage-domains\/add-site\/\" target=\"_blank\" rel=\"noopener nofollow\">h\u01b0\u1edbng d\u1eabn Add a site c\u1ee7a Cloudflare<\/a>.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_1:_\u0110\u0103ng_k\u00fd_t\u00e0i_kho\u1ea3n_Cloudflare\">B\u01b0\u1edbc 1: \u0110\u0103ng k\u00fd t\u00e0i kho\u1ea3n Cloudflare<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Truy c\u1eadp cloudflare.com, ch\u1ecdn <strong>Sign up<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-03.png\" alt=\"Trang ch\u1ee7 cloudflare.com v\u1edbi n\u00fat Sign up \u0111\u01b0\u1ee3c khoanh \u0111\u1ecf \u1edf g\u00f3c tr\u00ean b\u00ean ph\u1ea3i\" class=\"wp-image-93610\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-03.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-03-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadp email, m\u1eadt kh\u1ea9u, ho\u00e0n t\u1ea5t b\u01b0\u1edbc x\u00e1c minh ng\u01b0\u1eddi d\u00f9ng r\u1ed3i ch\u1ecdn <strong>Sign up<\/strong>. Cloudflare g\u1eedi email x\u00e1c nh\u1eadn v\u1ec1 h\u1ed9p th\u01b0 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-05.png\" alt=\"Form Get started with Cloudflare g\u1ed3m \u00f4 Email, Password v\u00e0 n\u00fat Sign up\" class=\"wp-image-93612\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-05.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-05-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_2:_Th\u00eam_t\u00ean_mi\u1ec1n_v\u00e0o_Cloudflare\">B\u01b0\u1edbc 2: Th\u00eam t\u00ean mi\u1ec1n v\u00e0o Cloudflare<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong dashboard, ch\u1ecdn <strong>Add a website or application<\/strong>. \u1ede giao di\u1ec7n hi\u1ec7n t\u1ea1i, n\u00fat n\u00e0y n\u1eb1m trong m\u1ee5c <strong>Domains<\/strong> v\u1edbi t\u00ean <strong>Onboard a domain<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-06.png\" alt=\"Dashboard Cloudflare v\u1edbi n\u00fat Add a website or application \u0111\u01b0\u1ee3c khoanh \u0111\u1ecf\" class=\"wp-image-93613\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-06.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2024\/05\/cloudflare-la-gi-06-300x171.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadp t\u00ean mi\u1ec1n g\u1ed1c, v\u00ed d\u1ee5 <code>example.vn<\/code> (kh\u00f4ng nh\u1eadp www hay subdomain), r\u1ed3i ch\u1ecdn <strong>Continue<\/strong>. V\u1edbi c\u00e1c g\u00f3i th\u00f4ng th\u01b0\u1eddng, Cloudflare ch\u1ec9 nh\u1eadn t\u00ean mi\u1ec1n ngay d\u01b0\u1edbi \u0111u\u00f4i t\u00ean mi\u1ec1n, kh\u00f4ng nh\u1eadn t\u00ean mi\u1ec1n ph\u1ee5 nh\u01b0 <code>blog.example.vn<\/code> (thi\u1ebft l\u1eadp ri\u00eang cho subdomain ch\u1ec9 c\u00f3 \u1edf g\u00f3i Enterprise).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"700\" height=\"400\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-nhap-ten-mien-che.webp\" alt=\"M\u00e0n h\u00ecnh Add your website or application to Cloudflare v\u1edbi \u00f4 Enter domain name v\u00e0 n\u00fat Continue, n\u1ed9i dung \u00f4 nh\u1eadp \u0111\u00e3 \u0111\u01b0\u1ee3c che\" class=\"wp-image-132600\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-nhap-ten-mien-che.webp 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/cloudflare-la-gi-nhap-ten-mien-che-300x171.webp 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_3:_Ch\u1ecdn_g\u00f3i\">B\u01b0\u1edbc 3: Ch\u1ecdn g\u00f3i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ecdn g\u00f3i ph\u00f9 h\u1ee3p; v\u1edbi website m\u1edbi, g\u00f3i Free l\u00e0 \u0111\u1ee7 \u0111\u1ec3 b\u1eaft \u0111\u1ea7u. C\u00f3 th\u1ec3 n\u00e2ng c\u1ea5p sau m\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0m l\u1ea1i c\u00e1c b\u01b0\u1edbc. Gi\u00e1 g\u00f3i xem tr\u00ean <a href=\"https:\/\/www.cloudflare.com\/plans\/\" target=\"_blank\" rel=\"noopener nofollow\">trang Plans<\/a>.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_4:_Ki\u1ec3m_tra_b\u1ea3n_ghi_DNS\">B\u01b0\u1edbc 4: Ki\u1ec3m tra b\u1ea3n ghi DNS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare t\u1ef1 qu\u00e9t c\u00e1c b\u1ea3n ghi DNS hi\u1ec7n c\u00f3, nh\u01b0ng c\u00f3 th\u1ec3 s\u00f3t. \u0110\u1ed1i chi\u1ebfu v\u1edbi b\u1ea3ng DNS \u0111ang d\u00f9ng v\u00e0 th\u00eam tay b\u1ea3n ghi thi\u1ebfu, \u0111\u1eb7c bi\u1ec7t l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ea3n ghi c\u1ee7a t\u00ean mi\u1ec1n ch\u00ednh v\u00e0 <code>www<\/code> (A ho\u1eb7c <a href=\"https:\/\/tino.vn\/blog\/cname-la-gi\/\">CNAME<\/a>): \u0111\u1ec3 <strong>Proxied<\/strong> n\u1ebfu mu\u1ed1n qua Cloudflare;<\/li>\n\n\n<li>B\u1ea3n ghi email MX, SPF, DKIM, DMARC: lu\u00f4n l\u00e0 <strong>DNS only<\/strong>;<\/li>\n\n\n<li>B\u1ea3n ghi <code>mail<\/code>, <code>ftp<\/code>, <code>cpanel<\/code> tr\u1ecf v\u1ec1 m\u00e1y ch\u1ee7: \u0111\u1ec3 <strong>DNS only<\/strong> \u0111\u1ec3 c\u00e1c d\u1ecbch v\u1ee5 n\u00e0y v\u1eabn k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu t\u00ean mi\u1ec1n d\u00f9ng email ri\u00eang, \u0111\u1ecdc th\u00eam <a href=\"https:\/\/tino.vn\/blog\/cau-hinh-email-ten-mien-rieng-tren-cloudflare\/\">c\u00e1ch c\u1ea5u h\u00ecnh email t\u00ean mi\u1ec1n ri\u00eang tr\u00ean Cloudflare<\/a> tr\u01b0\u1edbc khi \u0111\u1ed5i nameserver \u0111\u1ec3 kh\u00f4ng gi\u00e1n \u0111o\u1ea1n th\u01b0.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_5:_\u0110\u1ed5i_nameserver_t\u1ea1i_nh\u00e0_\u0111\u0103ng_k\u00fd_t\u00ean_mi\u1ec1n\">B\u01b0\u1edbc 5: \u0110\u1ed5i nameserver t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare c\u1ea5p hai <a href=\"https:\/\/tino.vn\/blog\/name-servers-la-gi\/\">nameserver<\/a> ri\u00eang cho t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n, d\u1ea1ng <code>ten.ns.cloudflare.com<\/code>. V\u00e0o trang qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd, m\u1ee5c \u0111\u1ed5i nameserver (m\u00e1y ch\u1ee7 DNS), thay nameserver c\u0169 b\u1eb1ng hai nameserver n\u00e0y r\u1ed3i l\u01b0u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>N\u1ebfu t\u00ean mi\u1ec1n \u0111ang b\u1eadt <a href=\"https:\/\/tino.vn\/blog\/dnssec-la-gi\/\">DNSSEC<\/a>, t\u1eaft DNSSEC t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd tr\u01b0\u1edbc khi \u0111\u1ed5i nameserver v\u00e0 b\u1eadt l\u1ea1i qua Cloudflare sau khi t\u00ean mi\u1ec1n \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng, theo t\u00e0i li\u1ec7u Add a site. Th\u1eddi gian nameserver m\u1edbi c\u00f3 hi\u1ec7u l\u1ef1c ph\u1ee5 thu\u1ed9c nh\u00e0 \u0111\u0103ng k\u00fd v\u00e0 TTL; Cloudflare g\u1eedi email khi t\u00ean mi\u1ec1n chuy\u1ec3n tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng.<\/em><\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_6:_C\u1ea5u_h\u00ecnh_SSL\/TLS\">B\u01b0\u1edbc 6: C\u1ea5u h\u00ecnh SSL\/TLS<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi t\u00ean mi\u1ec1n ho\u1ea1t \u0111\u1ed9ng, v\u00e0o <strong>SSL\/TLS<\/strong> v\u00e0 ch\u1ecdn ch\u1ebf \u0111\u1ed9 <strong>Full (strict)<\/strong> n\u1ebfu m\u00e1y ch\u1ee7 g\u1ed1c \u0111\u00e3 c\u00f3 ch\u1ee9ng ch\u1ec9 h\u1ee3p l\u1ec7 (<a href=\"https:\/\/developers.cloudflare.com\/ssl\/origin-configuration\/ssl-modes\/full-strict\/\" target=\"_blank\" rel=\"noopener nofollow\">t\u00e0i li\u1ec7u Full strict<\/a>). Ch\u1ebf \u0111\u1ed9 Flexible ch\u1ec9 m\u00e3 ho\u00e1 t\u1eeb tr\u00ecnh duy\u1ec7t t\u1edbi Cloudflare, \u0111o\u1ea1n t\u1eeb Cloudflare v\u1ec1 m\u00e1y ch\u1ee7 v\u1eabn l\u00e0 HTTP, d\u1ec5 g\u00e2y v\u00f2ng l\u1eb7p chuy\u1ec3n h\u01b0\u1edbng v\u1edbi WordPress. Xem th\u00eam <a href=\"https:\/\/tino.vn\/blog\/ssl-certificate-la-gi\/\">ch\u1ee9ng ch\u1ec9 SSL l\u00e0 g\u00ec<\/a> v\u00e0 <a href=\"https:\/\/tino.vn\/blog\/cach-su-dung-cdn-cho-website-wordpress\/\">c\u00e1ch d\u00f9ng CDN cho website WordPress<\/a>.<\/p>\n\n\n\n<h2 id=\"Cloudflare_Railgun_l\u00e0_g\u00ec_v\u00e0_c\u00f2n_d\u00f9ng_\u0111\u01b0\u1ee3c_kh\u00f4ng?\">Cloudflare Railgun l\u00e0 g\u00ec v\u00e0 c\u00f2n d\u00f9ng \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Railgun l\u00e0 c\u00f4ng ngh\u1ec7 c\u0169 c\u1ee7a Cloudflare, n\u00e9n v\u00e0 ch\u1ec9 g\u1eedi ph\u1ea7n thay \u0111\u1ed5i c\u1ee7a trang \u0111\u1ed9ng gi\u1eefa m\u00e1y ch\u1ee7 g\u1ed1c v\u00e0 Cloudflare, c\u00e0i b\u1eb1ng ph\u1ea7n m\u1ec1m Railgun tr\u00ean m\u00e1y ch\u1ee7. Theo <a href=\"https:\/\/blog.cloudflare.com\/deprecating-railgun\/\" target=\"_blank\" rel=\"noopener nofollow\">th\u00f4ng b\u00e1o c\u1ee7a Cloudflare<\/a> (01\/06\/2023), Railgun ng\u1eebng h\u1ed7 tr\u1ee3 sau ng\u00e0y 31\/01\/2024 v\u00e0 c\u00e1c k\u1ebft n\u1ed1i Railgun ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1eeb 01\/02\/2024.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare cho bi\u1ebft kh\u00f4ng c\u00f3 s\u1ea3n ph\u1ea9m thay th\u1ebf y h\u1ec7t. N\u1ebfu c\u1ea7n k\u1ebft n\u1ed1i an to\u00e0n t\u1eeb m\u00e1y ch\u1ee7 kh\u00f4ng m\u1edf c\u1ed5ng ra Internet, d\u00f9ng <a href=\"https:\/\/developers.cloudflare.com\/cloudflare-one\/networks\/connectors\/cloudflare-tunnel\/\" target=\"_blank\" rel=\"noopener nofollow\">Cloudflare Tunnel<\/a> (v\u00ed d\u1ee5 th\u1ef1c t\u1ebf: <a href=\"https:\/\/tino.vn\/blog\/dung-cloudflare-tunnel-bao-mat-openclaw\/\">d\u00f9ng Cloudflare Tunnel b\u1ea3o m\u1eadt OpenClaw<\/a>); n\u1ebfu c\u1ea7n t\u1ed1i \u01b0u \u0111\u01b0\u1eddng truy\u1ec1n, Cloudflare g\u1ee3i \u00fd Argo Smart Routing qua Tunnel ho\u1eb7c k\u1ebft n\u1ed1i ri\u00eang Cloudflare Network Interconnect. C\u00e1c h\u01b0\u1edbng d\u1eabn b\u1eadt Railgun trong tab Speed hay s\u1eeda t\u1ec7p railgun.conf kh\u00f4ng c\u00f2n l\u00e0m theo \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h2 id=\"K\u1ebft_lu\u1eadn\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cloudflare h\u1eefu \u00edch khi website c\u1ea7n l\u1edbp l\u1ecdc t\u1ea5n c\u00f4ng, HTTPS v\u00e0 b\u1ed9 \u0111\u1ec7m \u1edf nhi\u1ec1u n\u01a1i, v\u00e0 vi\u1ec7c b\u1eaft \u0111\u1ea7u ch\u1ec9 c\u1ea7n \u0111\u1ed5i nameserver c\u1ee7a t\u00ean mi\u1ec1n. Tr\u01b0\u1edbc khi b\u1eadt proxy, ki\u1ec3m l\u1ea1i b\u1ea3n ghi email, ch\u1ecdn SSL Full (strict) v\u00e0 \u0111o t\u1ed1c \u0111\u1ed9 t\u1eeb m\u1ea1ng c\u1ee7a kh\u00e1ch \u0111\u1ec3 ch\u1eafc Cloudflare th\u1eadt s\u1ef1 gi\u00fap website c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u00e0i vi\u1ebft li\u00ean quan:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/tino.vn\/blog\/dns-la-gi\/\">DNS l\u00e0 g\u00ec v\u00e0 c\u00e1c lo\u1ea1i b\u1ea3n ghi DNS<\/a><\/li>\n\n\n<li><a href=\"https:\/\/tino.vn\/blog\/name-servers-la-gi\/\">Name server l\u00e0 g\u00ec<\/a><\/li>\n\n\n<li><a href=\"https:\/\/tino.vn\/blog\/cname-la-gi\/\">B\u1ea3n ghi CNAME l\u00e0 g\u00ec<\/a><\/li>\n\n\n<li><a href=\"https:\/\/tino.vn\/blog\/cdn-la-gi\/\">CDN l\u00e0 g\u00ec<\/a><\/li>\n\n\n<li><a href=\"https:\/\/tino.vn\/blog\/cau-hinh-email-ten-mien-rieng-tren-cloudflare\/\">C\u1ea5u h\u00ecnh email t\u00ean mi\u1ec1n ri\u00eang tr\u00ean Cloudflare<\/a><\/li>\n\n\n<li><a href=\"https:\/\/tino.vn\/blog\/cach-chong-ddos-cho-vps\/\">C\u00e1ch ch\u1ed1ng DDoS cho VPS<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea7n t\u00ean mi\u1ec1n cho website? <a href=\"https:\/\/tino.vn\/ten-mien\">\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n t\u1ea1i Tino<\/a>: ki\u1ec3m tra t\u00ean mi\u1ec1n c\u00f2n tr\u1ed1ng, \u0111\u0103ng k\u00fd .vn v\u00e0 qu\u1ed1c t\u1ebf, qu\u1ea3n l\u00fd DNS trong m\u1ed9t t\u00e0i kho\u1ea3n. Xem gi\u00e1 tr\u00ean trang s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<h2 id=\"C\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Cloudflare_l\u00e0_ph\u1ea7n_m\u1ec1m_g\u00ec?\">Cloudflare l\u00e0 ph\u1ea7n m\u1ec1m g\u00ec?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Cloudflare kh\u00f4ng ph\u1ea3i ph\u1ea7n m\u1ec1m c\u00e0i l\u00ean m\u00e1y t\u00ednh hay hosting m\u00e0 l\u00e0 d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y: b\u1ea1n ch\u1ec9 \u0111\u1ed5i nameserver c\u1ee7a t\u00ean mi\u1ec1n v\u00e0 c\u1ea5u h\u00ecnh tr\u00ean dashboard. Ri\u00eang \u1ee9ng d\u1ee5ng Cloudflare One Client v\u00e0 \u1ee9ng d\u1ee5ng 1.1.1.1 l\u00e0 ph\u1ea7n m\u1ec1m c\u00e0i tr\u00ean thi\u1ebft b\u1ecb, d\u00f9ng cho m\u1ee5c \u0111\u00edch kh\u00e1c v\u1edbi vi\u1ec7c t\u0103ng t\u1ed1c website.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"Cloudflare_One_Client_l\u00e0_g\u00ec?\">Cloudflare One Client l\u00e0 g\u00ec?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Theo <a href=\"https:\/\/developers.cloudflare.com\/cloudflare-one\/team-and-resources\/devices\/cloudflare-one-client\/\" target=\"_blank\" rel=\"noopener nofollow\">t\u00e0i li\u1ec7u Cloudflare<\/a>, Cloudflare One Client (tr\u01b0\u1edbc \u0111\u00e2y g\u1ecdi l\u00e0 WARP) l\u00e0 \u1ee9ng d\u1ee5ng c\u00e0i tr\u00ean m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i \u0111\u1ec3 g\u1eedi l\u01b0u l\u01b0\u1ee3ng c\u1ee7a thi\u1ebft b\u1ecb qua m\u1ea1ng Cloudflare, n\u01a1i doanh nghi\u1ec7p \u00e1p ch\u00ednh s\u00e1ch l\u1ecdc web v\u00e0 truy c\u1eadp n\u1ed9i b\u1ed9. \u1ee8ng d\u1ee5ng n\u00e0y kh\u00f4ng c\u1ea7n thi\u1ebft khi b\u1ea1n ch\u1ec9 mu\u1ed1n \u0111\u01b0a website l\u00ean Cloudflare.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"\u0110\u1ed5i_nameserver_sang_Cloudflare_c\u00f3_l\u00e0m_m\u1ea5t_email_theo_t\u00ean_mi\u1ec1n_kh\u00f4ng?\">\u0110\u1ed5i nameserver sang Cloudflare c\u00f3 l\u00e0m m\u1ea5t email theo t\u00ean mi\u1ec1n kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng m\u1ea5t n\u1ebfu b\u1ea3n ghi MX, SPF, DKIM v\u00e0 b\u1ea3n ghi mail \u0111\u01b0\u1ee3c ch\u00e9p \u0111\u1ee7 sang Cloudflare tr\u01b0\u1edbc khi \u0111\u1ed5i nameserver. Email ch\u1ec9 gi\u00e1n \u0111o\u1ea1n khi b\u1ea3n ghi b\u1ecb thi\u1ebfu ho\u1eb7c b\u1ea3n ghi mail b\u1ecb b\u1eadt proxy; ki\u1ec3m b\u1ea3ng DNS \u1edf b\u01b0\u1edbc 4 r\u1ed3i m\u1edbi \u0111\u1ed5i nameserver.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"C\u00f3_th\u1ec3_t\u1eaft_Cloudflare_m\u00e0_v\u1eabn_gi\u1eef_website_ch\u1ea1y_kh\u00f4ng?\">C\u00f3 th\u1ec3 t\u1eaft Cloudflare m\u00e0 v\u1eabn gi\u1eef website ch\u1ea1y kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">C\u00f3. C\u00e1ch nhanh l\u00e0 chuy\u1ec3n c\u00e1c b\u1ea3n ghi web sang DNS only (\u0111\u00e1m m\u00e2y x\u00e1m) \u0111\u1ec3 l\u01b0\u1ee3t truy c\u1eadp \u0111i th\u1eb3ng v\u1ec1 m\u00e1y ch\u1ee7. Mu\u1ed1n b\u1ecf h\u1eb3n Cloudflare, ch\u00e9p b\u1ea3ng DNS sang n\u01a1i qu\u1ea3n l\u00fd DNS m\u1edbi r\u1ed3i \u0111\u1ed5i nameserver t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd v\u1ec1 nameserver c\u0169.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Cloudflare l\u00e0 ph\u1ea7n m\u1ec1m g\u00ec?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Cloudflare kh\u00f4ng ph\u1ea3i ph\u1ea7n m\u1ec1m c\u00e0i l\u00ean m\u00e1y t\u00ednh hay hosting m\u00e0 l\u00e0 d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y: b\u1ea1n ch\u1ec9 \u0111\u1ed5i nameserver c\u1ee7a t\u00ean mi\u1ec1n v\u00e0 c\u1ea5u h\u00ecnh tr\u00ean dashboard. Ri\u00eang \u1ee9ng d\u1ee5ng Cloudflare One Client v\u00e0 \u1ee9ng d\u1ee5ng 1.1.1.1 l\u00e0 ph\u1ea7n m\u1ec1m c\u00e0i tr\u00ean thi\u1ebft b\u1ecb, d\u00f9ng cho m\u1ee5c \u0111\u00edch kh\u00e1c v\u1edbi vi\u1ec7c t\u0103ng t\u1ed1c website.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"Cloudflare One Client l\u00e0 g\u00ec?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Theo <a>t\u00e0i li\u1ec7u Cloudflare<\/a>, Cloudflare One Client (tr\u01b0\u1edbc \u0111\u00e2y g\u1ecdi l\u00e0 WARP) l\u00e0 \u1ee9ng d\u1ee5ng c\u00e0i tr\u00ean m\u00e1y t\u00ednh, \u0111i\u1ec7n tho\u1ea1i \u0111\u1ec3 g\u1eedi l\u01b0u l\u01b0\u1ee3ng c\u1ee7a thi\u1ebft b\u1ecb qua m\u1ea1ng Cloudflare, n\u01a1i doanh nghi\u1ec7p \u00e1p ch\u00ednh s\u00e1ch l\u1ecdc web v\u00e0 truy c\u1eadp n\u1ed9i b\u1ed9. \u1ee8ng d\u1ee5ng n\u00e0y kh\u00f4ng c\u1ea7n thi\u1ebft khi b\u1ea1n ch\u1ec9 mu\u1ed1n \u0111\u01b0a website l\u00ean Cloudflare.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"\u0110\u1ed5i nameserver sang Cloudflare c\u00f3 l\u00e0m m\u1ea5t email theo t\u00ean mi\u1ec1n kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng m\u1ea5t n\u1ebfu b\u1ea3n ghi MX, SPF, DKIM v\u00e0 b\u1ea3n ghi mail \u0111\u01b0\u1ee3c ch\u00e9p \u0111\u1ee7 sang Cloudflare tr\u01b0\u1edbc khi \u0111\u1ed5i nameserver. Email ch\u1ec9 gi\u00e1n \u0111o\u1ea1n khi b\u1ea3n ghi b\u1ecb thi\u1ebfu ho\u1eb7c b\u1ea3n ghi mail b\u1ecb b\u1eadt proxy; ki\u1ec3m b\u1ea3ng DNS \u1edf b\u01b0\u1edbc 4 r\u1ed3i m\u1edbi \u0111\u1ed5i nameserver.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"C\u00f3 th\u1ec3 t\u1eaft Cloudflare m\u00e0 v\u1eabn gi\u1eef website ch\u1ea1y kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>C\u00f3. C\u00e1ch nhanh l\u00e0 chuy\u1ec3n c\u00e1c b\u1ea3n ghi web sang DNS only (\u0111\u00e1m m\u00e2y x\u00e1m) \u0111\u1ec3 l\u01b0\u1ee3t truy c\u1eadp \u0111i th\u1eb3ng v\u1ec1 m\u00e1y ch\u1ee7. Mu\u1ed1n b\u1ecf h\u1eb3n Cloudflare, ch\u00e9p b\u1ea3ng DNS sang n\u01a1i qu\u1ea3n l\u00fd DNS m\u1edbi r\u1ed3i \u0111\u1ed5i nameserver t\u1ea1i nh\u00e0 \u0111\u0103ng k\u00fd v\u1ec1 nameserver c\u0169.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Cloudflare l\u00e0 d\u1ecbch v\u1ee5 \u0111\u1ee9ng gi\u1eefa ng\u01b0\u1eddi truy c\u1eadp v\u00e0 m\u00e1y ch\u1ee7 website, g\u1ed3m DNS, m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) v\u00e0 l\u1edbp l\u1ecdc t\u1ea5n c\u00f4ng. Khi t\u00ean mi\u1ec1n d\u00f9ng nameserver c\u1ee7a Cloudflare v\u00e0 b\u1ea3n ghi web b\u1eadt proxy, m\u1ecdi l\u01b0\u1ee3t truy c\u1eadp \u0111i qua m\u00e1y ch\u1ee7 Cloudflare tr\u01b0\u1edbc: n\u1ed9i dung t\u0129nh \u0111\u01b0\u1ee3c tr\u1ea3 t\u1eeb [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":132542,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7729],"tags":[5464],"class_list":["post-15585","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dns","tag-cloudflare"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/15585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=15585"}],"version-history":[{"count":7,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/15585\/revisions"}],"predecessor-version":[{"id":132720,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/15585\/revisions\/132720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/132542"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=15585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=15585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=15585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}