{"id":15666,"date":"2019-03-11T22:07:19","date_gmt":"2019-03-11T15:07:19","guid":{"rendered":"https:\/\/blog.tinohost.com\/?p=678"},"modified":"2026-01-02T18:06:48","modified_gmt":"2026-01-02T11:06:48","slug":"whois-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/whois-la-gi\/","title":{"rendered":"Whois l\u00e0 g\u00ec? C\u00e1ch s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 Whois [2026]"},"content":{"rendered":"\n

Khi truy c\u1eadp m\u1ed9t website b\u1ea5t k\u1ef3, b\u1ea1n c\u00f3 bao gi\u1edd t\u1ef1 h\u1ecfi: Ai l\u00e0 ch\u1ee7 s\u1edf h\u1eefu t\u00ean mi\u1ec1n \u0111\u00f3? T\u00ean mi\u1ec1n \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd t\u1eeb khi n\u00e0o v\u00e0 s\u1ebd h\u1ebft h\u1ea1n v\u00e0o l\u00fac n\u00e0o? T\u1ea5t c\u1ea3 nh\u1eefng th\u00f4ng tin n\u00e0y \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tra c\u1ee9u th\u00f4ng qua c\u00f4ng c\u1ee5 Whois<\/strong> \u2013 m\u1ed9t gi\u1ea3i ph\u00e1p \u0111\u01a1n gi\u1ea3n nh\u01b0ng c\u1ef1c k\u1ef3 h\u1eefu \u00edch trong vi\u1ec7c t\u00ecm ki\u1ebfm th\u00f4ng tin t\u00ean mi\u1ec1n. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd c\u00f9ng t\u00ecm hi\u1ec3u c\u00f4ng c\u1ee5 Whois l\u00e0 g\u00ec, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng ra sao v\u00e0 t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng Internet.<\/strong><\/p>\n\n\n\n

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

\u0110\u1ecbnh ngh\u0129a Whois<\/strong><\/h3>\n\n\n\n

Whois l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 cho ph\u00e9p b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra t\u00ean mi\u1ec1n <\/a>b\u1ea1n d\u1ef1 \u0111\u1ecbnh \u0111\u0103ng k\u00fd \u0111\u00e3 \u0111\u01b0\u1ee3c ng\u01b0\u1eddi kh\u00e1c \u0111\u0103ng k\u00fd tr\u01b0\u1edbc hay ch\u01b0a. Whois \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 Who is<\/strong>, t\u1ea1m d\u1ecbch: L\u00e0 ai?<\/em>, do v\u1eady, c\u00f4ng c\u1ee5 n\u00e0y c\u00f2n c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n bi\u1ebft \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 th\u00f4ng tin c\u01a1 c\u1ee7a ng\u01b0\u1eddi s\u1edf h\u1eefu nh\u01b0: N\u01a1i \u0111\u0103ng k\u00fd, \u0111\u1ecba ch\u1ec9, t\u00ean ch\u1ee7 s\u1edf h\u1eefu, email, ng\u00e0y \u0111\u0103ng k\u00fd v\u00e0 m\u1ed9t s\u1ed1 th\u00f4ng tin li\u00ean l\u1ea1c.<\/p>\n\n\n\n

V\u00ec nh\u1eefng t\u00ednh n\u0103ng tuy\u1ec7t v\u1eddi \u0111\u00f3, Whois \u0111ang l\u00e0 c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/p>\n\n\n

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\"Whois
Whois l\u00e0 g\u00ec?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n

T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng Whois?<\/strong><\/h3>\n\n\n\n

B\u1ea1n n\u00ean bi\u1ebft r\u1eb1ng m\u1ed9t t\u00ean mi\u1ec1n ch\u1ec9 d\u00f9ng cho m\u1ed9t website duy nh\u1ea5t v\u00e0 kh\u00f4ng c\u00f3 tr\u00f9ng l\u1eb7p. Khi thi\u1ebft k\u1ebf web, t\u00ean mi\u1ec1n l\u00e0 y\u1ebfu t\u1ed1 c\u1ef1c k\u1ef3 quan tr\u1ecdng v\u00e0 qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn c\u00f9ng l\u00e0m b\u1ea1n c\u1ea3m th\u1ea5y \u201c\u0111au \u0111\u1ea7u\u201d, v\u00ec kh\u00f4ng ch\u1ec9 ch\u1ecdn sao cho ph\u00f9 h\u1ee3p \u00fd m\u00ecnh mong mu\u1ed1n m\u00e0 c\u00f2n kh\u00f4ng \u0111\u01b0\u1ee3c gi\u1ed1ng t\u00ean \u0111\u00e3 c\u00f3 s\u1eb5n. Ch\u1ec9 c\u1ea7n s\u1eed d\u1ee5ng Whois, b\u1ea1n s\u1ebd ti\u1ebft ki\u1ec7m r\u1ea5t nhi\u1ec1u th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c \u0111\u1ec3 ki\u1ec3m tra t\u00ean mi\u1ec1n \u0111\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c ng\u01b0\u1eddi kh\u00e1c \u0111\u0103ng k\u00fd hay ch\u01b0a.<\/p>\n\n\n\n

B\u00ean c\u1ea1nh \u0111\u00f3, vi\u1ec7c ki\u1ec3m tra b\u1eb1ng Whois s\u1ebd gi\u00fap b\u1ea1n bi\u1ebft \u0111\u1ed9 uy t\u00edn c\u1ee7a t\u00ean mi\u1ec1n khi c\u1ea7n mua b\u00e1n ho\u1eb7c th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng. M\u1eb7c d\u00f9 tr\u01b0\u1edbc khi h\u1ebft h\u1ea1n, nh\u00e0 cung c\u1ea5p s\u1ebd c\u00f3 th\u00f4ng b\u00e1o v\u00e0 h\u1ecfi b\u1ea1n c\u00f3 ti\u1ebfp t\u1ee5c gia h\u1ea1n hay kh\u00f4ng. Nh\u01b0ng kh\u00f4ng lo\u1ea1i tr\u1eeb m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p nh\u01b0 b\u1ea1n kh\u00f4ng s\u1eed d\u1ee5ng email \u0111\u00e3 \u0111\u0103ng k\u00fd v\u1edbi nh\u00e0 m\u1ea1ng n\u00ean kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c th\u00f4ng b\u00e1o; l\u1ed7i t\u1eeb ph\u00eda nh\u00e2n vi\u00ean;… v\u00e0 nhi\u1ec1u nguy\u00ean kh\u00e1c. D\u1eabn \u0111\u1ebfn t\u00ean mi\u1ec1n c\u1ee7a b\u1ea1n qu\u00e1 h\u1ea1n v\u00e0 b\u1ecb ng\u01b0\u1eddi kh\u00e1c \u0111\u0103ng k\u00fd, \u0111\u1ed3ng ngh\u0129a s\u1ebd th\u01b0\u01a1ng hi\u1ec7u b\u1ecb m\u1ea5t.<\/p>\n\n\n

\n
\"T\u1ea1i
T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng Whois?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n

Whois \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong tr\u01b0\u1eddng h\u1ee3p n\u00e0o?<\/strong><\/h3>\n\n\n\n

Tra c\u1ee9u t\u00ean mi\u1ec1n l\u00e0 ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a Whois. Ngo\u00e0i ra, c\u00f4ng c\u1ee5 n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c d\u00f9ng trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3 nh\u01b0:<\/p>\n\n\n\n