{"id":925751,"date":"2024-10-23T04:28:46","date_gmt":"2024-10-23T04:28:46","guid":{"rendered":"https:\/\/proxyelite.info\/?post_type=solutions&#038;p=925751"},"modified":"2025-06-13T04:34:59","modified_gmt":"2025-06-13T04:34:59","slug":"proxies-for-web-scraping","status":"publish","type":"solutions","link":"https:\/\/proxyelite.info\/vi\/solutions\/proxies-for-web-scraping\/","title":{"rendered":"Proxy cho Web Scraping"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\ud83d\udd0d Proxy trung t\u00e2m d\u1eef li\u1ec7u l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Proxy trung t\u00e2m d\u1eef li\u1ec7u l\u00e0 \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean m\u00e1y ch\u1ee7 c\u1ee7a b\u00ean th\u1ee9 ba \u2014 kh\u00f4ng b\u1ecb r\u00e0ng bu\u1ed9c v\u1edbi ISP ho\u1eb7c thi\u1ebft b\u1ecb v\u1eadt l\u00fd. Khi b\u1ea1n s\u1eed d\u1ee5ng ch\u00fang, c\u00e1c y\u00eau c\u1ea7u thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn l\u1ea1i th\u00f4ng qua c\u00e1c m\u00e1y ch\u1ee7 n\u00e0y, \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t l\u00e1 ch\u1eafn b\u1ea3o v\u1ec7 danh t\u00ednh v\u00e0 v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2699\ufe0f Proxy trung t\u00e2m d\u1eef li\u1ec7u ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i l\u1ea7n tr\u00ecnh thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n g\u1eedi y\u00eau c\u1ea7u, n\u00f3 s\u1ebd \u0111i qua m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u. Trang web b\u1ea1n \u0111ang nh\u1eafm m\u1ee5c ti\u00eau ch\u1ec9 nh\u00ecn th\u1ea5y IP c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u \u2014 kh\u00f4ng ph\u1ea3i IP th\u1ef1c c\u1ee7a b\u1ea1n. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ecf qua c\u00e1c kh\u1ed1i \u0111\u1ecba l\u00fd<\/li>\n\n\n\n<li>Tr\u00e1nh b\u1ecb ph\u00e1t hi\u1ec7n<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u m\u1edf r\u1ed9ng song song<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udca8 T\u1ea1i sao Proxy Trung t\u00e2m d\u1eef li\u1ec7u l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. T\u1ed1c \u0111\u1ed9 c\u1ef1c nhanh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1y ch\u1ee7 trung t\u00e2m d\u1eef li\u1ec7u ch\u1ea1y tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng hi\u1ec7u su\u1ea5t cao. Cho d\u00f9 thu th\u1eadp 100 hay 100.000 trang, t\u1ed1c \u0111\u1ed9 hi\u1ebfm khi l\u00e0 v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ed d\u1ee5:<\/strong> Vi\u1ec7c thu th\u1eadp danh s\u00e1ch s\u1ea3n ph\u1ea9m t\u1eeb c\u00e1c n\u1ec1n t\u1ea3ng th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed tr\u1edf n\u00ean nhanh h\u01a1n g\u1ea5p 3 l\u1ea7n nh\u1edd \u0111\u1ecbnh tuy\u1ebfn trung t\u00e2m d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng \u1edf quy m\u00f4 l\u1edbn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">So v\u1edbi proxy d\u00e2n d\u1ee5ng, c\u00e1c t\u00f9y ch\u1ecdn trung t\u00e2m d\u1eef li\u1ec7u r\u1ebb h\u01a1n \u0111\u00e1ng k\u1ec3 \u2014 l\u00fd t\u01b0\u1edfng cho vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ef1 th\u1eadt:<\/strong> Proxy trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m <strong>l\u00ean \u0111\u1ebfn 70% \u00edt h\u01a1n<\/strong> so v\u1edbi d\u00e2n d\u1ee5ng t\u00ednh theo GB ho\u1eb7c IP.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Xoay v\u00f2ng IP theo quy m\u00f4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi quy\u1ec1n truy c\u1eadp v\u00e0o h\u00e0ng ngh\u00ecn IP, b\u1ea1n c\u00f3 th\u1ec3 xoay v\u00f2ng \u0111\u1ecba ch\u1ec9 sau m\u1ed7i y\u00eau c\u1ea7u ho\u1eb7c phi\u00ean \u0111\u1ec3 m\u00f4 ph\u1ecfng h\u00e0nh vi c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1ee3i \u00edch:<\/strong> \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng b\u1ecb ch\u1eb7n, CAPTCHA ho\u1eb7c gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. T\u00ednh \u1ea9n danh m\u1ea1nh m\u1ebd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Proxy trung t\u00e2m d\u1eef li\u1ec7u che gi\u1ea5u ho\u00e0n to\u00e0n IP g\u1ed1c c\u1ee7a b\u1ea1n, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng g\u00e2y nghi ng\u1edd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eb9o:<\/strong> S\u1eed d\u1ee5ng tr\u00ecnh qu\u1ea3n l\u00fd proxy nh\u01b0 <em>ProxySwitcher<\/em> ho\u1eb7c <em>B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n Smartproxy<\/em> \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng xoay v\u00e0 ti\u00eau \u0111\u1ec1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u0110\u1ed9 tin c\u1eady nh\u1ea5t qu\u00e1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c proxy n\u00e0y \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u00ean c\u00e1c m\u1ea1ng \u1ed5n \u0111\u1ecbnh, \u0111\u1ea3m b\u1ea3o th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c t\u1ed1i thi\u1ec3u \u2014 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c c\u00f4ng vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u k\u00e9o d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1ef1 th\u1eadt:<\/strong> H\u1ea7u h\u1ebft c\u00e1c nh\u00e0 cung c\u1ea5p cao c\u1ea5p \u0111\u1ec1u \u0111\u1ea3m b\u1ea3o <strong>Th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng 99.95%<\/strong> ho\u1eb7c cao h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udd9a Datacenter so v\u1edbi c\u00e1c lo\u1ea1i Proxy kh\u00e1c<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Lo\u1ea1i proxy<\/th><th>T\u1ed1c \u0111\u1ed9<\/th><th>Tr\u1ecb gi\u00e1<\/th><th>\u1ea9n danh<\/th><th>\u0111\u1ed9 tin c\u1eady<\/th><\/tr><tr><td><a href=\"https:\/\/proxyelite.info\/vi\/types\/datacenter-proxies\/\" data-type=\"link\" data-id=\"https:\/\/proxyelite.info\/types\/datacenter-proxies\/\">Trung t\u00e2m d\u1eef li\u1ec7u<\/a><\/td><td>\u2b50\u2b50\u2b50\u2b50\u2b50<\/td><td>\ud83d\udcb2 Th\u1ea5p<\/td><td>\u2b50\u2b50\u2b50\u2b50<\/td><td>\u2b50\u2b50\u2b50\u2b50\u2b50<\/td><\/tr><tr><td>Khu d\u00e2n c\u01b0<\/td><td>\u2b50\u2b50\u2b50<\/td><td>\ud83d\udcb2\ud83d\udcb2 Cao<\/td><td>\u2b50\u2b50\u2b50\u2b50\u2b50<\/td><td>\u2b50\u2b50\u2b50<\/td><\/tr><tr><td>Di \u0111\u1ed9ng<\/td><td>\u2b50\u2b50<\/td><td>\ud83d\udcb2\ud83d\udcb2\ud83d\udcb2 R\u1ea5t cao<\/td><td>\u2b50\u2b50\u2b50\u2b50<\/td><td>\u2b50\u2b50<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u2705 C\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u b\u1eb1ng Proxy trung t\u00e2m d\u1eef li\u1ec7u<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Xoay v\u00f2ng IP:<\/strong> S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m trung gian `scrapy-rotating-proxies` ho\u1eb7c logic t\u00f9y ch\u1ec9nh \u0111\u1ec3 tr\u00e1nh b\u1ecb ch\u1eb7n.<\/li>\n\n\n\n<li><strong>Y\u00eau c\u1ea7u v\u1ec1 b\u01b0\u1edbm ga:<\/strong> Gi\u1edbi thi\u1ec7u s\u1ef1 ch\u1eadm tr\u1ec5 v\u1edbi <code data-no-translation=\"\">time.sleep()<\/code> \u0111\u1ec3 m\u00f4 ph\u1ecfng ng\u01b0\u1eddi d\u00f9ng.<\/li>\n\n\n\n<li><strong>T\u00f4n tr\u1ecdng c\u00e1c \u0111i\u1ec1u kho\u1ea3n:<\/strong> Lu\u00f4n ki\u1ec3m tra ch\u00ednh s\u00e1ch thu th\u1eadp d\u1eef li\u1ec7u v\u00e0 c\u00e1c \u0111i\u1ec1u kho\u1ea3n d\u1ecbch v\u1ee5 c\u1ee7a trang web.<\/li>\n\n\n\n<li><strong>S\u1eed d\u1ee5ng Ti\u00eau \u0111\u1ec1:<\/strong> Ng\u1eabu nhi\u00ean h\u00f3a c\u00e1c ti\u00eau \u0111\u1ec1 nh\u01b0 <code data-no-translation=\"\">User-Agent<\/code>, <code data-no-translation=\"\">Referer<\/code>v\u00e0 cookie.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udee0\ufe0f C\u00e1c c\u00f4ng c\u1ee5 t\u01b0\u01a1ng th\u00edch v\u1edbi Proxy trung t\u00e2m d\u1eef li\u1ec7u<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>v\u1ee5n v\u1eb7t<\/strong> \u2013 Khung qu\u00e9t Pythonic nhanh ch\u00f3ng<\/li>\n\n\n\n<li><strong>S\u00fap \u0111\u1eb9p<\/strong> \u2013 Tr\u00ecnh ph\u00e2n t\u00edch c\u00fa ph\u00e1p HTML nh\u1eb9<\/li>\n\n\n\n<li><strong>Selenium \/ Ng\u01b0\u1eddi \u0111i\u1ec1u khi\u1ec3n r\u1ed1i<\/strong> \u2013 T\u1ef1 \u0111\u1ed9ng h\u00f3a tr\u00ecnh duy\u1ec7t v\u1edbi h\u1ed7 tr\u1ee3 proxy<\/li>\n\n\n\n<li><strong>Fiddler, ProxyMesh, Tr\u00ecnh qu\u1ea3n l\u00fd d\u1eef li\u1ec7u Bright<\/strong> \u2013 C\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t v\u00e0 qu\u1ea3n l\u00fd<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udea7 V\u01b0\u1ee3t qua nh\u1eefng th\u00e1ch th\u1ee9c chung<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">CAPTCHA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 <em>2Captcha<\/em> ho\u1eb7c <em>Ch\u1ed1ng Captcha<\/em> \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng gi\u1ea3i quy\u1ebft c\u00e1c l\u1eddi nh\u1eafc x\u00e1c minh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1eb7n IP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1edf r\u1ed9ng nh\u00f3m proxy c\u1ee7a b\u1ea1n v\u00e0 xoay v\u00f2ng IP m\u1ed9t c\u00e1ch th\u00f4ng minh \u0111\u1ec3 tr\u00e1nh b\u1ecb ch\u1eb7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2696\ufe0f Nh\u1eefng c\u00e2n nh\u1eafc v\u1ec1 m\u1eb7t ph\u00e1p l\u00fd v\u00e0 \u0111\u1ea1o \u0111\u1ee9c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ec9 thu th\u1eadp d\u1eef li\u1ec7u c\u00f4ng khai. Kh\u00f4ng bao gi\u1edd c\u1ed1 g\u1eafng truy c\u1eadp n\u1ed9i dung \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u1eb9o:<\/strong> H\u00e3y tham kh\u1ea3o \u00fd ki\u1ebfn chuy\u00ean gia ph\u00e1p l\u00fd n\u1ebfu b\u1ea1n kh\u00f4ng ch\u1eafc ch\u1eafn m\u1ee5c ti\u00eau thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh c\u00f3 tu\u00e2n th\u1ee7 hay kh\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd1a K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Proxy trung t\u00e2m d\u1eef li\u1ec7u t\u1ea1o ra s\u1ef1 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o gi\u1eefa <strong>t\u1ed1c \u0111\u1ed9<\/strong>, <strong>gi\u00e1<\/strong>, V\u00e0 <strong>s\u1ef1 \u1ed5n \u0111\u1ecbnh<\/strong>. Cho d\u00f9 b\u1ea1n \u0111ang thu th\u1eadp SERP, trang s\u1ea3n ph\u1ea9m hay danh s\u00e1ch vi\u1ec7c l\u00e0m \u2014 ch\u00fang \u0111\u1ec1u l\u00e0 \u0111\u1ed3ng minh t\u1ed1t nh\u1ea5t c\u1ee7a b\u1ea1n v\u00e0o n\u0103m 2025.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 <strong>B\u1ea1n \u0111\u00e3 s\u1eb5n s\u00e0ng m\u1edf r\u1ed9ng quy m\u00f4 d\u1ef1 \u00e1n thu th\u1eadp d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh ch\u01b0a?<\/strong><br>H\u00e3y th\u1eed proxy trung t\u00e2m d\u1eef li\u1ec7u t\u1eeb <a href=\"https:\/\/proxyelite.info\/vi\/\">ProxyElite.Info<\/a> v\u00e0 c\u00f3 quy\u1ec1n truy c\u1eadp nhanh ch\u00f3ng, gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng t\u1edbi h\u01a1n 64.000 IP tr\u00ean h\u01a1n 30 qu\u1ed1c gia.<\/p>","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":true,"inline_featured_image":false},"class_list":["post-925751","solutions","type-solutions","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/solutions\/925751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/solutions"}],"about":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/types\/solutions"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media?parent=925751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}