{"id":12383238,"date":"2026-03-28T21:02:14","date_gmt":"2026-03-28T13:02:14","guid":{"rendered":"https:\/\/www.likacloud.com\/knowledge\/%e7%90%86%e8%a7%a3%e5%9f%9f%e5%90%8d%ef%bc%9a%e4%bb%8e%e6%b3%a8%e5%86%8c%e5%88%b0%e8%a7%a3%e6%9e%90%e7%9a%84%e5%ae%8c%e6%95%b4%e6%8c%87%e5%8d%97%e4%b8%8e%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5\/"},"modified":"2026-03-28T21:08:41","modified_gmt":"2026-03-28T13:08:41","slug":"domain-registration-dns-resolution-guide-best-practices-12383238","status":"publish","type":"knowledge_post","link":"https:\/\/www.likacloud.com\/vi\/knowledge\/domain\/domain-registration-dns-resolution-guide-best-practices-12383238\/","title":{"rendered":"Hi\u1ec3u v\u1ec1 t\u00ean mi\u1ec1n: H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u00e0 th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t t\u1eeb \u0111\u0103ng k\u00fd \u0111\u1ebfn ph\u00e2n gi\u1ea3i"},"content":{"rendered":"

Trong th\u1ebf gi\u1edbi internet, t\u00ean mi\u1ec1n l\u00e0 \u0111\u1ecbnh danh v\u00e0 \u0111\u1ecba ch\u1ec9 duy nh\u1ea5t cho m\u1ed7i website. N\u00f3 kh\u00f4ng ch\u1ec9 l\u00e0 c\u1ed5ng v\u00e0o quan tr\u1ecdng \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp website, m\u00e0 c\u00f2n l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a h\u00ecnh \u1ea3nh th\u01b0\u01a1ng hi\u1ec7u v\u00e0 t\u00e0i s\u1ea3n k\u1ef9 thu\u1eadt s\u1ed1. Hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u00ean mi\u1ec1n, n\u1eafm v\u1eefng to\u00e0n b\u1ed9 quy tr\u00ecnh t\u1eeb \u0111\u0103ng k\u00fd \u0111\u1ebfn ph\u00e2n gi\u1ea3i, l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 c\u00e1 nh\u00e2n hay t\u1ed5 ch\u1ee9c n\u00e0o mu\u1ed1n x\u00e2y d\u1ef1ng ho\u1ea1t \u0111\u1ed9ng kinh doanh tr\u1ef1c tuy\u1ebfn, th\u01b0\u01a1ng hi\u1ec7u c\u00e1 nh\u00e2n ho\u1eb7c d\u1ef1 \u00e1n k\u1ef9 thu\u1eadt. M\u1ed9t t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00e0 qu\u1ea3n l\u00fd c\u1ea9n th\u1eadn c\u00f3 th\u1ec3 \u0111\u1eb7t n\u1ec1n m\u00f3ng v\u1eefng ch\u1eafc cho h\u00e0nh tr\u00ecnh tr\u1ef1c tuy\u1ebfn c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

T\u00ean mi\u1ec1n l\u00e0 g\u00ec v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n\n\n\n

V\u1ec1 b\u1ea3n ch\u1ea5t, t\u00ean mi\u1ec1n l\u00e0 m\u1ed9t \u0111\u1ecba ch\u1ec9 internet d\u1ec5 nh\u1edb \u0111\u1ed1i v\u1edbi con ng\u01b0\u1eddi, \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 thay th\u1ebf cho \u0111\u1ecba ch\u1ec9 IP ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f3 nh\u1edb. Khi b\u1ea1n nh\u1eadp \u201cwww.example.com\u201d v\u00e0o tr\u00ecnh duy\u1ec7t, h\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n (DNS) s\u1ebd chuy\u1ec3n \u0111\u1ed5i t\u00ean th\u00e2n thi\u1ec7n n\u00e0y th\u00e0nh \u0111\u1ecba ch\u1ec9 IP s\u1ed1 m\u00e0 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c, t\u1eeb \u0111\u00f3 d\u1eabn b\u1ea1n \u0111\u1ebfn \u0111\u00fang m\u00e1y ch\u1ee7 v\u00e0 website.<\/p>\n\n\n\n

Ph\u00e2n t\u00edch c\u1ea5u tr\u00fac t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

M\u1ed9t t\u00ean mi\u1ec1n \u0111\u1ea7y \u0111\u1ee7 bao g\u1ed3m nhi\u1ec1u ph\u1ea7n, t\u1eeb ph\u1ea3i sang tr\u00e1i theo c\u1ea5p b\u1eadc gi\u1ea3m d\u1ea7n. Ph\u1ea7n ngo\u00e0i c\u00f9ng b\u00ean ph\u1ea3i l\u00e0 t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t (TLD), v\u00ed d\u1ee5 \u201c.com\u201d, \u201c.cn\u201d ho\u1eb7c \u201c.org\u201d. Ngay b\u00ean tr\u00e1i TLD l\u00e0 t\u00ean mi\u1ec1n c\u1ea5p hai, \u0111\u00e2y l\u00e0 ph\u1ea7n c\u1ed1t l\u00f5i do ng\u01b0\u1eddi d\u00f9ng \u0111\u0103ng k\u00fd v\u00e0 t\u00f9y ch\u1ec9nh, v\u00ed d\u1ee5 \u201cexample\u201d. Ph\u1ea7n \u201cwww\u201d ngo\u00e0i c\u00f9ng b\u00ean tr\u00e1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u00ean mi\u1ec1n ph\u1ee5 (subdomain) ho\u1eb7c t\u00ean m\u00e1y ch\u1ee7 (hostname). C\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p n\u00e0y t\u1ea1o th\u00e0nh m\u1ed9t c\u00e2y \u0111\u1eb7t t\u00ean to\u00e0n c\u1ea7u, \u0111\u1ea3m b\u1ea3o t\u00ednh duy nh\u1ea5t c\u1ee7a m\u1ed7i t\u00ean mi\u1ec1n.<\/p>\n\n\n\n

Vai tr\u00f2 c\u1ee7a h\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

H\u1ec7 th\u1ed1ng t\u00ean mi\u1ec1n l\u00e0 \u201cdanh b\u1ea1 \u0111i\u1ec7n tho\u1ea1i\u201d ho\u1eb7c \u201cs\u1ed5 \u0111\u1ecba ch\u1ec9\u201d c\u1ee7a Internet. N\u00f3 ho\u1ea1t \u0111\u1ed9ng th\u00f4ng qua m\u1ea1ng l\u01b0\u1edbi c\u00e1c m\u00e1y ch\u1ee7 DNS ph\u00e2n b\u1ed1 tr\u00ean to\u00e0n c\u1ea7u, ph\u00e2n gi\u1ea3i y\u00eau c\u1ea7u truy v\u1ea5n t\u00ean mi\u1ec1n theo t\u1eebng c\u1ea5p, cu\u1ed1i c\u00f9ng t\u00ecm ra \u0111\u1ecba ch\u1ec9 IP t\u01b0\u01a1ng \u1ee9ng. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng g\u1ea7n nh\u01b0 ho\u00e0n t\u1ea5t t\u1ee9c th\u00ec, nh\u01b0ng \u0111\u1eb1ng sau \u0111\u00f3 li\u00ean quan \u0111\u1ebfn s\u1ef1 t\u01b0\u01a1ng t\u00e1c ph\u1ee9c t\u1ea1p c\u1ee7a nhi\u1ec1u c\u1ea5p \u0111\u1ed9 nh\u01b0 m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n g\u1ed1c, m\u00e1y ch\u1ee7 TLD v\u00e0 m\u00e1y ch\u1ee7 t\u00ean mi\u1ec1n c\u00f3 th\u1ea9m quy\u1ec1n.<\/p>\n\n\n\n

C\u00e1ch \u0111\u0103ng k\u00fd v\u00e0 l\u1ef1a ch\u1ecdn t\u00ean mi\u1ec1n<\/h2>\n\n\n\n

\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 thi\u1ebft l\u1eadp s\u1ef1 hi\u1ec7n di\u1ec7n tr\u1ef1c tuy\u1ebfn. Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh th\u00f4ng qua c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n. B\u1ea1n c\u1ea7n ki\u1ec3m tra t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a t\u00ean mi\u1ec1n mong mu\u1ed1n, sau \u0111\u00f3 ho\u00e0n t\u1ea5t mua v\u00e0 x\u00e1c th\u1ef1c danh t\u00ednh theo quy tr\u00ecnh c\u1ee7a nh\u00e0 \u0111\u0103ng k\u00fd.<\/p>\n\n\n

\n\n
\n \u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n hosting.com<\/strong>\n
Th\u00f4ng qua g\u00f3i l\u01b0u tr\u1eef chia s\u1ebb h\u00e0ng n\u0103m, nh\u1eadn t\u00ean mi\u1ec1n .com mi\u1ec5n ph\u00ed trong m\u1ed9t n\u0103m, h\u1ed7 tr\u1ee3 300+ h\u1eadu t\u1ed1 t\u00ean mi\u1ec1n, qu\u1ea3n l\u00fd DNS mi\u1ec5n ph\u00ed, h\u1ed7 tr\u1ee3 kh\u00e1ch h\u00e0ng 24\/7<\/div>\n <\/div>\n\n
\n \n \n \"\u0110\u0103ng\n \n \n <\/a>\n \n \n Truy c\u1eadp hosting.com <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\n

Nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i khi l\u1ef1a ch\u1ecdn t\u00ean mi\u1ec1n<\/h3>\n\n\n\n

Vi\u1ec7c ch\u1ecdn m\u1ed9t t\u00ean mi\u1ec1n t\u1ed1t c\u1ea7n xem x\u00e9t t\u1ed5ng h\u1ee3p nhi\u1ec1u y\u1ebfu t\u1ed1. Tr\u01b0\u1edbc ti\u00ean, t\u00ean mi\u1ec1n n\u00ean ng\u1eafn g\u1ecdn, d\u1ec5 nh\u1edb, d\u1ec5 \u0111\u00e1nh v\u1ea7n, tr\u00e1nh s\u1eed d\u1ee5ng d\u1ea5u g\u1ea1ch n\u1ed1i, s\u1ed1 ho\u1eb7c c\u00e1c k\u00fd t\u1ef1 d\u1ec5 g\u00e2y nh\u1ea7m l\u1eabn. Th\u1ee9 hai, t\u00ean mi\u1ec1n t\u1ed1t nh\u1ea5t n\u00ean ph\u1ea3n \u00e1nh \u0111\u01b0\u1ee3c th\u01b0\u01a1ng hi\u1ec7u, ho\u1ea1t \u0111\u1ed9ng kinh doanh ho\u1eb7c n\u1ed9i dung c\u1ed1t l\u00f5i c\u1ee7a trang web. Cu\u1ed1i c\u00f9ng, vi\u1ec7c l\u1ef1a ch\u1ecdn t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng. T\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t chung nh\u01b0 \u201c.com\u201d c\u00f3 m\u1ee9c \u0111\u1ed9 nh\u1eadn bi\u1ebft v\u00e0 \u0111\u1ed9 tin c\u1eady cao nh\u1ea5t, trong khi t\u00ean mi\u1ec1n c\u1ea5p cao nh\u1ea5t m\u00e3 qu\u1ed1c gia nh\u01b0 \u201c.vn\u201d th\u00ec gi\u00fap \u00edch cho ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecba ph\u01b0\u01a1ng h\u00f3a v\u00e0 SEO.<\/p>\n\n\n\n

Quy tr\u00ecnh \u0111\u0103ng k\u00fd v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd<\/h3>\n\n\n\n

Khi \u0111\u0103ng k\u00fd, b\u1ea1n c\u1ea7n cung c\u1ea5p th\u00f4ng tin li\u00ean h\u1ec7 ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o th\u00f4ng tin c\u1ee7a ch\u1ee7 s\u1edf h\u1eefu t\u00ean mi\u1ec1n l\u00e0 ch\u00ednh x\u00e1c, \u0111i\u1ec1u n\u00e0y li\u00ean quan \u0111\u1ebfn quy\u1ec1n s\u1edf h\u1eefu v\u00e0 an to\u00e0n c\u1ee7a t\u00ean mi\u1ec1n. N\u00ean k\u00edch ho\u1ea1t d\u1ecbch v\u1ee5 b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 t\u00ean mi\u1ec1n \u0111\u1ec3 ng\u0103n th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n b\u1ecb c\u00f4ng khai truy v\u1ea5n. \u0110\u1ed3ng th\u1eddi, l\u01b0u \u00fd \u0111\u1ebfn th\u1eddi h\u1ea1n \u0111\u0103ng k\u00fd v\u00e0 ch\u00ednh s\u00e1ch gia h\u1ea1n t\u00ean mi\u1ec1n, tr\u00e1nh \u0111\u1ec3 m\u1ea5t t\u00ean mi\u1ec1n do qu\u00ean gia h\u1ea1n.<\/p>\n\n\n\n

Qu\u00e1 tr\u00ecnh ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n chi ti\u1ebft<\/h2>\n\n\n\n

Ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n l\u00e0 qu\u00e1 tr\u00ecnh k\u1ef9 thu\u1eadt quan tr\u1ecdng chuy\u1ec3n \u0111\u1ed5i t\u00ean mi\u1ec1n th\u00e0nh \u0111\u1ecba ch\u1ec9 IP. Khi b\u1ea1n nh\u1eadp m\u1ed9t \u0111\u1ecba ch\u1ec9 web tr\u00ean thi\u1ebft b\u1ecb, m\u1ed9t lo\u1ea1t c\u00e1c b\u01b0\u1edbc truy v\u1ea5n tinh vi s\u1ebd \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng.<\/p>\n\n\n\n

Gi\u1ea3i th\u00edch chi ti\u1ebft c\u00e1c b\u01b0\u1edbc ph\u00e2n gi\u1ea3i<\/h3>\n\n\n\n

\u0110\u1ea7u ti\u00ean, m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n s\u1ebd ki\u1ec3m tra b\u1ed9 nh\u1edb cache DNS c\u1ee5c b\u1ed9 \u0111\u1ec3 xem c\u00f3 b\u1ea3n ghi c\u1ee7a t\u00ean mi\u1ec1n \u0111\u00f3 kh\u00f4ng. N\u1ebfu kh\u00f4ng, y\u00eau c\u1ea7u truy v\u1ea5n s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 DNS \u0111\u1ec7 quy \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh trong c\u1ea5u h\u00ecnh m\u1ea1ng c\u1ee7a b\u1ea1n. M\u00e1y ch\u1ee7 \u0111\u1ec7 quy s\u1ebd thay m\u1eb7t b\u1ea1n th\u1ef1c hi\u1ec7n truy v\u1ea5n v\u00e0o h\u1ec7 th\u1ed1ng ph\u00e2n c\u1ea5p DNS to\u00e0n c\u1ea7u: \u0111\u1ea7u ti\u00ean n\u00f3 h\u1ecfi m\u00e1y ch\u1ee7 t\u00ean g\u1ed1c, m\u00e1y ch\u1ee7 g\u1ed1c s\u1ebd th\u00f4ng b\u00e1o \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 TLD ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho t\u00ean mi\u1ec1n c\u1ea5p cao t\u01b0\u01a1ng \u1ee9ng; ti\u1ebfp theo m\u00e1y ch\u1ee7 \u0111\u1ec7 quy h\u1ecfi m\u00e1y ch\u1ee7 TLD, m\u00e1y ch\u1ee7 TLD s\u1ebd th\u00f4ng b\u00e1o \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 DNS c\u00f3 th\u1ea9m quy\u1ec1n qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n \u0111\u00f3; cu\u1ed1i c\u00f9ng, m\u00e1y ch\u1ee7 \u0111\u1ec7 quy truy v\u1ea5n m\u00e1y ch\u1ee7 DNS c\u00f3 th\u1ea9m quy\u1ec1n \u0111\u1ec3 nh\u1eadn b\u1ea3n ghi \u0111\u1ecba ch\u1ec9 IP cu\u1ed1i c\u00f9ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u00ean mi\u1ec1n, v\u00e0 tr\u1ea3 v\u1ec1 cho m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n, \u0111\u1ed3ng th\u1eddi l\u01b0u v\u00e0o b\u1ed9 nh\u1edb cache k\u1ebft qu\u1ea3 \u0111\u00f3 \u0111\u1ec3 s\u1eed d\u1ee5ng sau n\u00e0y.<\/p>\n\n\n\n

C\u00e1c lo\u1ea1i b\u1ea3n ghi DNS quan tr\u1ecdng<\/h3>\n\n\n\n

M\u00e1y ch\u1ee7 DNS c\u00f3 th\u1ea9m quy\u1ec1n \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh v\u1edbi nhi\u1ec1u lo\u1ea1i b\u1ea3n ghi DNS, m\u1ed7i lo\u1ea1i \u0111\u1ea3m nh\u1eadn c\u00e1c ch\u1ee9c n\u0103ng kh\u00e1c nhau. B\u1ea3n ghi A l\u00e0 b\u1ea3n ghi c\u01a1 b\u1ea3n nh\u1ea5t, n\u00f3 tr\u1ecf t\u00ean mi\u1ec1n \u0111\u1ebfn m\u1ed9t \u0111\u1ecba ch\u1ec9 IPv4. B\u1ea3n ghi AAAA \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tr\u1ecf \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IPv6. B\u1ea3n ghi CNAME, t\u1ee9c b\u1ea3n ghi b\u00ed danh, c\u00f3 th\u1ec3 tr\u1ecf m\u1ed9t t\u00ean mi\u1ec1n \u0111\u1ebfn m\u1ed9t t\u00ean mi\u1ec1n kh\u00e1c, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u1ea5u h\u00ecnh CDN ho\u1eb7c d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y. B\u1ea3n ghi MX \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 mail nh\u1eadn email cho t\u00ean mi\u1ec1n \u0111\u00f3. B\u1ea3n ghi TXT th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u01b0u tr\u1eef th\u00f4ng tin x\u00e1c th\u1ef1c nh\u01b0 SPF, DKIM, nh\u1eb1m n\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a email.<\/p>\n\n\n\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n t\u1ed1t nh\u1ea5t<\/h2>\n\n\n\n

Qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n hi\u1ec7u qu\u1ea3 l\u00e0 c\u1ed1t l\u00f5i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a trang web v\u00e0 an to\u00e0n t\u00e0i s\u1ea3n. \u0110\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 h\u00e0nh vi \u0111\u0103ng k\u00fd m\u1ed9t l\u1ea7n, m\u00e0 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c.<\/p>\n\n\n\n

B\u1ea3o m\u1eadt v\u00e0 B\u1ea3o v\u1ec7 Quy\u1ec1n s\u1edf h\u1eefu<\/h3>\n\n\n\n

\u0110\u1ea3m b\u1ea3o an to\u00e0n cho t\u00e0i kho\u1ea3n nh\u00e0 \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n l\u00e0 r\u1ea5t quan tr\u1ecdng, h\u00e3y s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u m\u1ea1nh v\u00e0 b\u1eadt x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1. Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra v\u00e0 c\u1eadp nh\u1eadt th\u00f4ng tin \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n, \u0111\u1ea3m b\u1ea3o email li\u00ean h\u1ec7 c\u00f3 hi\u1ec7u l\u1ef1c \u0111\u1ec3 nh\u1eadn th\u00f4ng b\u00e1o gia h\u1ea1n v\u00e0 b\u1ea3o m\u1eadt. Coi t\u00ean mi\u1ec1n nh\u01b0 m\u1ed9t t\u00e0i s\u1ea3n s\u1ed1 quan tr\u1ecdng, c\u00e2n nh\u1eafc k\u00e9o d\u00e0i th\u1eddi h\u1ea1n \u0111\u0103ng k\u00fd, \u0111i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 tr\u00e1nh \u0111\u01b0\u1ee3c r\u1ee7i ro qu\u00ean gia h\u1ea1n m\u00e0 m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm c\u0169ng c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 m\u1ed9t t\u00edn hi\u1ec7u t\u00edch c\u1ef1c v\u1ec1 t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a trang web.<\/p>\n\n\n\n

T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady<\/h3>\n\n\n\n

\u0110\u1ec3 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 truy c\u1eadp v\u00e0 t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a trang web, \u0111\u1ec1 xu\u1ea5t s\u1eed d\u1ee5ng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 ph\u00e2n gi\u1ea3i DNS \u0111\u00e1ng tin c\u1eady. Nhi\u1ec1u nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y v\u00e0 d\u1ecbch v\u1ee5 DNS chuy\u00ean nghi\u1ec7p cung c\u1ea5p m\u00e1y ch\u1ee7 DNS ph\u00e2n ph\u1ed1i to\u00e0n c\u1ea7u, c\u00f3 t\u00ednh kh\u1ea3 d\u1ee5ng cao, c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1ec5 ph\u00e2n gi\u1ea3i v\u00e0 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng DDoS. Vi\u1ec7c thi\u1ebft l\u1eadp gi\u00e1 tr\u1ecb TTL h\u1ee3p l\u00fd c\u0169ng r\u1ea5t c\u1ea7n thi\u1ebft: trong giai \u0111o\u1ea1n \u1ed5n \u0111\u1ecbnh c\u1ee7a trang web, c\u00f3 th\u1ec3 \u0111\u1eb7t TTL d\u00e0i \u0111\u1ec3 gi\u1ea3m t\u1ea3i truy v\u1ea5n; khi b\u1ea1n l\u00ean k\u1ebf ho\u1ea1ch di chuy\u1ec3n m\u00e1y ch\u1ee7 ho\u1eb7c thay \u0111\u1ed5i IP, n\u00ean \u0111i\u1ec1u ch\u1ec9nh gi\u1ea3m gi\u00e1 tr\u1ecb TTL tr\u01b0\u1edbc \u0111\u1ec3 thay \u0111\u1ed5i c\u00f3 hi\u1ec7u l\u1ef1c nhanh ch\u00f3ng tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n\n\n

\n\n
\n \u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n UltaHost<\/strong>\n
H\u01a1n 300 \u0111u\u00f4i t\u00ean mi\u1ec1n, ch\u1ecdn g\u00f3i l\u01b0u tr\u1eef h\u00e0ng n\u0103m, t\u1eadn h\u01b0\u1edfng t\u00ean mi\u1ec1n mi\u1ec5n ph\u00ed! Chuy\u1ec3n t\u00ean mi\u1ec1n sang Ultahost \u0111\u1ec3 \u0111\u01b0\u1ee3c gia h\u1ea1n mi\u1ec5n ph\u00ed m\u1ed9t n\u0103m, .com $9.49 n\u0103m \u0111\u1ea7u ti\u00ean<\/div>\n <\/div>\n\n
\n \n \n \"\u0110\u0103ng\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

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

T\u00ean mi\u1ec1n l\u00e0 c\u1ea7u n\u1ed1i gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 d\u1ecbch v\u1ee5 tr\u1ef1c tuy\u1ebfn, t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 l\u00e0 kh\u00f4ng c\u1ea7n b\u00e0n c\u00e3i. B\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c hi\u1ec3u c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p c\u1ee7a t\u00ean mi\u1ec1n, \u0111\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn v\u00e0 \u0111\u0103ng k\u00fd m\u1ed9t t\u00ean mi\u1ec1n ph\u00f9 h\u1ee3p m\u1ed9t c\u00e1ch th\u1eadn tr\u1ecdng, r\u1ed3i \u0111i s\u00e2u v\u00e0o hi\u1ec3u c\u01a1 ch\u1ebf ph\u00e2n gi\u1ea3i ph\u1ee9c t\u1ea1p \u0111\u1eb1ng sau, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u li\u00ean quan \u0111\u1ebfn s\u1ef1 su\u00f4n s\u1ebb v\u00e0 an to\u00e0n c\u1ee7a ho\u1ea1t \u0111\u1ed9ng kinh doanh tr\u1ef1c tuy\u1ebfn. B\u1eb1ng c\u00e1ch tu\u00e2n theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd t\u00ean mi\u1ec1n t\u1ed1t nh\u1ea5t, bao g\u1ed3m \u0111\u1ea3m b\u1ea3o an ninh, t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 duy tr\u00ec quy\u1ec1n s\u1edf h\u1eefu \u0111\u00fang c\u00e1ch, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 tin c\u1eady c\u1ee7a t\u00e0i s\u1ea3n s\u1ed1 quan tr\u1ecdng n\u00e0y. N\u1eafm v\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y s\u1ebd gi\u00fap b\u1ea1n t\u1ef1 tin h\u01a1n trong vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 b\u1ea3o tr\u00ec l\u00e3nh th\u1ed5 tr\u1ef1c tuy\u1ebfn c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

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

T\u00ean mi\u1ec1n v\u00e0 \u0111\u1ecba ch\u1ec9 web kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n

T\u00ean mi\u1ec1n l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a \u0111\u1ecba ch\u1ec9 web. M\u1ed9t \u0111\u1ecba ch\u1ec9 web ho\u00e0n ch\u1ec9nh th\u01b0\u1eddng bao g\u1ed3m giao th\u1ee9c, t\u00ean mi\u1ec1n, c\u1ed5ng v\u00e0 \u0111\u01b0\u1eddng d\u1eabn, v.v. V\u00ed d\u1ee5, trong \u201chttps:\/\/www.example.com\/page\u201d, \u201cexample.com\u201d l\u00e0 t\u00ean mi\u1ec1n, c\u00f2n to\u00e0n b\u1ed9 chu\u1ed7i l\u00e0 \u0111\u1ecba ch\u1ec9 web.<\/p>\n\n\n\n

Sau khi \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ngay kh\u00f4ng?<\/h3>\n\n\n\n

Sau khi \u0111\u0103ng k\u00fd th\u00e0nh c\u00f4ng, b\u1ea1n \u0111\u00e3 c\u00f3 quy\u1ec1n s\u1eed d\u1ee5ng t\u00ean mi\u1ec1n \u0111\u00f3. Tuy nhi\u00ean, \u0111\u1ec3 c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c website, b\u1ea1n c\u1ea7n ho\u00e0n t\u1ea5t c\u1ea5u h\u00ecnh ph\u00e2n gi\u1ea3i t\u00ean mi\u1ec1n, t\u1ee9c l\u00e0 tr\u1ecf t\u00ean mi\u1ec1n v\u1ec1 \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y ch\u1ee7 website. Th\u1eddi gian ph\u00e2n gi\u1ea3i c\u00f3 hi\u1ec7u l\u1ef1c th\u01b0\u1eddng m\u1ea5t t\u1eeb v\u00e0i ph\u00fat \u0111\u1ebfn v\u00e0i gi\u1edd, t\u00f9y thu\u1ed9c v\u00e0o c\u00e0i \u0111\u1eb7t TTL c\u1ee7a b\u1ea3n ghi DNS v\u00e0 th\u1eddi gian l\u00e0m m\u1edbi b\u1ed9 nh\u1edb \u0111\u1ec7m to\u00e0n c\u1ea7u.<\/p>\n\n\n\n

T\u1ea1i sao sau khi s\u1eeda b\u1ea3n ghi DNS v\u1eabn truy c\u1eadp v\u00e0o website c\u0169?<\/h3>\n\n\n\n

\u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng do b\u1ed9 nh\u1edb \u0111\u1ec7m DNS g\u00e2y ra. M\u00e1y t\u00ednh c\u1ee5c b\u1ed9, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c m\u00e1y ch\u1ee7 DNS \u0111\u1ec7 quy c\u1ee7a ISP c\u00f3 th\u1ec3 \u0111\u00e3 l\u01b0u b\u1ea3n ghi DNS c\u0169. B\u1ea1n c\u00f3 th\u1ec3 th\u1eed x\u00f3a b\u1ed9 nh\u1edb \u0111\u1ec7m DNS c\u1ee5c b\u1ed9, ho\u1eb7c \u0111\u1ee3i TTL c\u1ee7a b\u1ea3n ghi h\u1ebft h\u1ea1n, b\u1ed9 nh\u1edb \u0111\u1ec7m s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt. Vi\u1ec7c gi\u1ea3m gi\u00e1 tr\u1ecb TTL tr\u01b0\u1edbc khi thay \u0111\u1ed5i b\u1ea3n ghi DNS c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian ch\u1edd c\u00f3 hi\u1ec7u l\u1ef1c to\u00e0n c\u1ea7u.<\/p>\n\n\n\n

T\u00f4i c\u00f3 th\u1ec3 chuy\u1ec3n t\u00ean mi\u1ec1n t\u1eeb m\u1ed9t nh\u00e0 \u0111\u0103ng k\u00fd n\u00e0y sang m\u1ed9t nh\u00e0 \u0111\u0103ng k\u00fd kh\u00e1c kh\u00f4ng?<\/h3>\n\n\n\n

C\u00f3, vi\u1ec7c chuy\u1ec3n t\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c cho ph\u00e9p. Th\u00f4ng th\u01b0\u1eddng c\u1ea7n \u0111\u00e1p \u1ee9ng m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00ean mi\u1ec1n \u0111\u00e3 \u0111\u0103ng k\u00fd h\u01a1n 60 ng\u00e0y, \u1edf tr\u1ea1ng th\u00e1i kh\u00f4ng b\u1ecb kh\u00f3a, c\u00f3 m\u00e3 \u1ee7y quy\u1ec1n ch\u00ednh x\u00e1c v\u00e0 c\u00e1ch ng\u00e0y h\u1ebft h\u1ea1n m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. Qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i t\u1ef1 n\u00f3 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i th\u1eddi h\u1ea1n hi\u1ec7u l\u1ef1c c\u1ee7a t\u00ean mi\u1ec1n th\u00eam m\u1ed9t n\u0103m.<\/p>\n\n\n\n

B\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 t\u00ean mi\u1ec1n l\u00e0 g\u00ec, c\u00f3 c\u1ea7n thi\u1ebft b\u1eadt kh\u00f4ng?<\/h3>\n\n\n\n

D\u1ecbch v\u1ee5 b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 t\u00ean mi\u1ec1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u00f4ng tin li\u00ean h\u1ec7 c\u1ee7a nh\u00e0 \u0111\u0103ng k\u00fd ho\u1eb7c b\u00ean th\u1ee9 ba thay th\u1ebf th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n nh\u01b0 t\u00ean, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i, \u0111\u1ecba ch\u1ec9 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong c\u01a1 s\u1edf d\u1eef li\u1ec7u tra c\u1ee9u c\u00f4ng khai WHOIS. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7u qu\u1ea3 r\u1ee7i ro v\u1ec1 th\u01b0 r\u00e1c, cu\u1ed9c g\u1ecdi l\u1eeba \u0111\u1ea3o v\u00e0 \u0111\u00e1nh c\u1eafp danh t\u00ednh. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1 nh\u00e2n v\u00e0 doanh nghi\u1ec7p nh\u1ecf, vi\u1ec7c b\u1eadt d\u1ecbch v\u1ee5 n\u00e0y l\u00e0 h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb.<\/p>\n\n

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\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"\u0110\u0103ng\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t
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\r\n\t\t\t\t\t\u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n 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\tH\u1ed7 tr\u1ee3 tr\u00ecnh t\u1ea1o t\u00ean mi\u1ec1n AI, d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3 24\/7<\/span>\r\n\t\t\t\t
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T\u1ea1o t\u00ean mi\u1ec1n b\u1eb1ng AI<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp Bluehost \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n \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\"WordPress.com\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\tWordPress.com \u0111\u0103ng k\u00fd t\u00ean mi\u1ec1n<\/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\u1ecdn g\u00f3i cao c\u1ea5p nh\u1ea5t \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m gi\u00e1 l\u00ean \u0111\u1ebfn 69% + mi\u1ec5n ph\u00ed chuy\u1ec3n t\u00ean mi\u1ec1n, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd t\u1eeb .com, .blog v\u00e0 h\u01a1n 350 \u0111u\u00f4i t\u00ean mi\u1ec1n kh\u00e1c.<\/span>\r\n\t\t\t\t
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Mua g\u00f3i thanh to\u00e1n h\u00e0ng n\u0103m, t\u00ean mi\u1ec1n mi\u1ec5n ph\u00ed n\u0103m \u0111\u1ea7u ti\u00ean<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\tTruy c\u1eadp \u0110\u0103ng k\u00fd t\u00ean mi\u1ec1n WordPress.com \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","protected":false},"excerpt":{"rendered":"

B\u00e0i vi\u1ebft gi\u1edbi thi\u1ec7u c\u00f3 h\u1ec7 th\u1ed1ng v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 gi\u00e1 tr\u1ecb c\u1ed1t l\u00f5i c\u1ee7a t\u00ean mi\u1ec1n, ph\u00e2n t\u00edch c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p c\u1ee7a t\u00ean mi\u1ec1n. Tr\u00ecnh b\u00e0y chi ti\u1ebft to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh t\u1eeb l\u1ef1a ch\u1ecdn, \u0111\u0103ng k\u00fd \u0111\u1ebfn ph\u00e2n gi\u1ea3i DNS, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd th\u1ef1c t\u1ebf \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an ninh t\u00ean mi\u1ec1n, t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t ph\u00e2n gi\u1ea3i, cung c\u1ea5p h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n cho vi\u1ec7c thi\u1ebft l\u1eadp s\u1ef1 hi\u1ec7n di\u1ec7n tr\u1ef1c tuy\u1ebfn \u1ed5n \u0111\u1ecbnh.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"knowledge_category":[279],"class_list":["post-12383238","knowledge_post","type-knowledge_post","status-publish","hentry","knowledge_category-domain"],"acf":{"site_seo_keywords":"\u57df\u540d\u6ce8\u518c\uff0c\u57df\u540d\u89e3\u6790\uff0cDNS\uff0c\u57df\u540d\u7cfb\u7edf\uff0c\u57df\u540d\u7ba1\u7406\uff0c\u9009\u62e9\u57df\u540d\uff0c\u57df\u540d\u89e3\u6790\u8fc7\u7a0b\uff0c\u57df\u540d\u5b89\u5168\u6700\u4f73\u5b9e\u8df5"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_posts\/12383238","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\/12383238\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/media?parent=12383238"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/tags?post=12383238"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/vi\/wp-json\/wp\/v2\/knowledge_category?post=12383238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}