{"id":923119,"date":"2024-05-28T06:05:49","date_gmt":"2024-05-28T06:05:49","guid":{"rendered":"https:\/\/proxyelite.info\/?p=923119"},"modified":"2024-05-24T06:15:15","modified_gmt":"2024-05-24T06:15:15","slug":"what-is-a-headless-browser-discover-the-hidden-power-behind-your-web-browsing","status":"publish","type":"post","link":"https:\/\/proxyelite.info\/vi\/what-is-a-headless-browser-discover-the-hidden-power-behind-your-web-browsing\/","title":{"rendered":"Tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u l\u00e0 g\u00ec? Kh\u00e1m ph\u00e1 s\u1ee9c m\u1ea1nh ti\u1ec1m \u1ea9n \u0111\u1eb1ng sau vi\u1ec7c duy\u1ec7t web c\u1ee7a b\u1ea1n"},"content":{"rendered":"

Ch\u00ednh x\u00e1c th\u00ec tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u l\u00e0 g\u00ec?<\/strong> <\/h2>\n\n\n\n

Tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed3 h\u1ecda, cho ph\u00e9p duy\u1ec7t v\u00e0 t\u01b0\u01a1ng t\u00e1c t\u1ef1 \u0111\u1ed9ng v\u1edbi c\u00e1c trang web. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c tr\u00ecnh duy\u1ec7t truy\u1ec1n th\u1ed1ng hi\u1ec3n th\u1ecb n\u1ed9i dung m\u1ed9t c\u00e1ch tr\u1ef1c quan, c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 n\u1ec1n, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c t\u00e1c v\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a web kh\u00e1c nhau.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong> <\/h2>\n\n\n\n

V\u1ec1 c\u1ed1t l\u00f5i, tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ecnh duy\u1ec7t ti\u00eau chu\u1ea9n nh\u01b0ng thi\u1ebfu giao di\u1ec7n \u0111\u1ed3 h\u1ecda. Thay v\u00ec hi\u1ec3n th\u1ecb c\u00e1c trang web \u0111\u1ec3 con ng\u01b0\u1eddi t\u01b0\u01a1ng t\u00e1c, n\u00f3 x\u1eed l\u00fd HTML, CSS v\u00e0 JavaScript m\u1ed9t c\u00e1ch \u1ea9n s\u00e2u, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c trang web theo ch\u01b0\u01a1ng tr\u00ecnh. \u0110i\u1ec1u n\u00e0y l\u00e0m cho c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 \u0111\u1ea7u ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 \u0111\u1ed1i v\u1edbi c\u00e1c t\u00e1c v\u1ee5 nh\u01b0 qu\u00e9t web, ki\u1ec3m tra t\u1ef1 \u0111\u1ed9ng v\u00e0 gi\u00e1m s\u00e1t trang web.<\/p>\n\n\n\n

C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u<\/strong><\/h2>\n\n\n\n
    \n
  1. Th\u1ef1c thi JavaScript<\/strong>: C\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng v\u01b0\u1ee3t tr\u1ed9i trong vi\u1ec7c th\u1ef1c thi JavaScript, cho ph\u00e9p ch\u00fang hi\u1ec3n th\u1ecb n\u1ed9i dung \u0111\u1ed9ng v\u00e0 t\u01b0\u01a1ng t\u00e1c li\u1ec1n m\u1ea1ch v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng web hi\u1ec7n \u0111\u1ea1i.<\/li>\n\n\n\n
  2. Hi\u1ec7u qu\u1ea3 t\u00e0i nguy\u00ean<\/strong>: V\u00ec c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng hi\u1ec3n th\u1ecb n\u1ed9i dung \u0111\u1ed3 h\u1ecda n\u00ean ch\u00fang ti\u00eau t\u1ed1n \u00edt t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng h\u01a1n so v\u1edbi c\u00e1c tr\u00ecnh duy\u1ec7t truy\u1ec1n th\u1ed1ng, khi\u1ebfn ch\u00fang nh\u1eb9 v\u00e0 l\u00fd t\u01b0\u1edfng \u0111\u1ec3 ch\u1ea1y trong m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7.<\/li>\n\n\n\n
  3. Kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng h\u00f3a<\/strong>: C\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng cung c\u1ea5p kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng h\u00f3a m\u1ea1nh m\u1ebd, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng t\u1ea1o c\u00e1c k\u1ecbch b\u1ea3n duy\u1ec7t web ph\u1ee9c t\u1ea1p v\u00e0 th\u1ef1c hi\u1ec7n ch\u00fang m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng.<\/li>\n\n\n\n
  4. T\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh<\/strong>: Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ecbnh c\u1ea5u h\u00ecnh tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng \u0111\u1ec3 m\u00f4 ph\u1ecfng c\u00e1c thi\u1ebft b\u1ecb, t\u00e1c nh\u00e2n ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u1ea1ng kh\u00e1c nhau, mang l\u1ea1i s\u1ef1 linh ho\u1ea1t cho m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m v\u00e0 ph\u00e1t tri\u1ec3n.<\/li>\n<\/ol>\n\n\n\n

    C\u00f4ng c\u1ee5 tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u ph\u1ed5 bi\u1ebfn<\/strong><\/h2>\n\n\n\n
      \n
    1. Ng\u01b0\u1eddi m\u00faa r\u1ed1i<\/strong>: \u0110\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Google, Puppeteer l\u00e0 th\u01b0 vi\u1ec7n Node.js \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, cung c\u1ea5p API c\u1ea5p cao \u0111\u1ec3 ki\u1ec3m so\u00e1t c\u00e1c tr\u00ecnh duy\u1ec7t Chrome v\u00e0 Chrome kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng. V\u1edbi Puppeteer, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n nhi\u1ec1u t\u00e1c v\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a web kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec1u h\u01b0\u1edbng trang, g\u1eedi bi\u1ec3u m\u1eabu v\u00e0 t\u1ea1o PDF.<\/li>\n\n\n\n
    2. Tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n web Selenium<\/strong>: Selenium l\u00e0 m\u1ed9t khung t\u1ef1 \u0111\u1ed9ng h\u00f3a linh ho\u1ea1t h\u1ed7 tr\u1ee3 nhi\u1ec1u ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh v\u00e0 tr\u00ecnh duy\u1ec7t. Selenium WebDriver cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec1u khi\u1ec3n c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng nh\u01b0 Chrome v\u00e0 Firefox theo ch\u01b0\u01a1ng tr\u00ecnh, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p cho vi\u1ec7c ki\u1ec3m tra t\u1ef1 \u0111\u1ed9ng v\u00e0 qu\u00e9t web.<\/li>\n\n\n\n
    3. Nh\u00e0 vi\u1ebft k\u1ecbch<\/strong>: \u0110\u01b0\u1ee3c gi\u1edbi thi\u1ec7u b\u1edfi Microsoft, Playwright l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111a tr\u00ecnh duy\u1ec7t cung c\u1ea5p h\u1ed7 tr\u1ee3 cho c\u00e1c ch\u1ebf \u0111\u1ed9 kh\u00f4ng \u0111\u1ea7u v\u00e0 kh\u00f4ng \u0111\u1ea7u. V\u1edbi Playwright, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c trang web trong tr\u00ecnh duy\u1ec7t Chrome, Firefox v\u00e0 WebKit, bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 ph\u00e1t tri\u1ec3n v\u00e0 th\u1eed nghi\u1ec7m web.<\/li>\n<\/ol>\n\n\n\n
      \"\"<\/figure>\n\n\n\n

      So s\u00e1nh c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u: T\u1ed5ng quan to\u00e0n di\u1ec7n<\/strong><\/h2>\n\n\n\n
      T\u00ednh n\u0103ng<\/th>Ng\u01b0\u1eddi m\u00faa r\u1ed1i<\/th>Tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n web Selenium<\/th>Nh\u00e0 vi\u1ebft k\u1ecbch<\/th><\/tr><\/thead>
      H\u1ed7 tr\u1ee3 ng\u00f4n ng\u1eef<\/td>JavaScript<\/td>Nhi\u1ec1u (Java, Python, C#, v.v.)<\/td>JavaScript, Python, C#<\/td><\/tr>
      H\u1ed7 tr\u1ee3 tr\u00ecnh duy\u1ec7t<\/td>Chrome, Crom<\/td>Chrome, Firefox, Safari, Edge, Kh\u00e1c<\/td>Chrome, Firefox, WebKit<\/td><\/tr>
      API d\u1ec5 s\u1eed d\u1ee5ng<\/td>Cao<\/td>Trung b\u00ecnh \u0111\u1ebfn cao<\/td>Cao<\/td><\/tr>
      T\u00e0i li\u1ec7u<\/td>R\u1ed9ng r\u00e3i<\/td>To\u00e0n di\u1ec7n<\/td>To\u00e0n di\u1ec7n<\/td><\/tr>
      S\u1ef1 \u0111\u00f3ng g\u00f3p cho c\u1ed9ng \u0111\u1ed3ng<\/td>T\u00edch c\u1ef1c<\/td>T\u00edch c\u1ef1c<\/td>T\u00edch c\u1ef1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      K\u1ebft lu\u1eadn: T\u1eadn d\u1ee5ng s\u1ee9c m\u1ea1nh c\u1ee7a tr\u00ecnh duy\u1ec7t kh\u00f4ng \u0111\u1ea7u<\/strong> <\/h2>\n\n\n\n

      Trong b\u1ed1i c\u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 ng\u00e0y nay, n\u01a1i hi\u1ec7u qu\u1ea3 v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean h\u00e0ng \u0111\u1ea7u, c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng cung c\u1ea5p gi\u1ea3i ph\u00e1p m\u1ea1nh m\u1ebd cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n web, ng\u01b0\u1eddi th\u1eed nghi\u1ec7m c\u0169ng nh\u01b0 nh\u00e0 khoa h\u1ecdc d\u1eef li\u1ec7u. V\u1edbi kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng li\u1ec1n m\u1ea1ch \u1edf ch\u1ebf \u0111\u1ed9 n\u1ec1n v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 duy\u1ec7t ph\u1ee9c t\u1ea1p theo ch\u01b0\u01a1ng tr\u00ecnh, c\u00e1c tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng gi\u00fap ng\u01b0\u1eddi d\u00f9ng h\u1ee3p l\u00fd h\u00f3a quy tr\u00ecnh c\u00f4ng vi\u1ec7c, n\u00e2ng cao n\u0103ng su\u1ea5t v\u00e0 m\u1edf ra c\u00e1c kh\u1ea3 n\u0103ng m\u1edbi trong t\u1ef1 \u0111\u1ed9ng h\u00f3a web. Cho d\u00f9 b\u1ea1n \u0111ang thu th\u1eadp d\u1eef li\u1ec7u, ch\u1ea1y th\u1eed nghi\u1ec7m t\u1ef1 \u0111\u1ed9ng hay theo d\u00f5i hi\u1ec7u su\u1ea5t trang web, vi\u1ec7c khai th\u00e1c kh\u1ea3 n\u0103ng c\u1ee7a tr\u00ecnh duy\u1ec7t kh\u00f4ng c\u00f3 giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 \u0111\u1ea9y d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n l\u00ean t\u1ea7m cao m\u1edbi. V\u1eady, b\u1ea1n \u0111\u00e3 s\u1eb5n s\u00e0ng kh\u00e1m ph\u00e1 s\u1ee9c m\u1ea1nh ti\u1ec1m \u1ea9n \u0111\u1eb1ng sau tr\u00ecnh duy\u1ec7t web c\u1ee7a m\u00ecnh ch\u01b0a?<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

      Ng\u01b0\u1eddi gi\u1edbi thi\u1ec7u:<\/strong><\/p>\n\n\n\n