{"id":21698,"date":"2025-06-17T14:02:56","date_gmt":"2025-06-17T06:02:56","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/what-is-a-crawler-and-why-does-it-cause-server-load-issues\/"},"modified":"2025-06-17T14:12:35","modified_gmt":"2025-06-17T06:12:35","slug":"what-is-a-crawler-and-why-does-it-cause-server-load-issues","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/what-is-a-crawler-and-why-does-it-cause-server-load-issues\/","title":{"rendered":"\u4ec0\u4e48\u662f\u722c\u866b\uff0c\u4e3a\u4ec0\u4e48\u722c\u866b\u4f1a\u5bfc\u81f4\u670d\u52a1\u5668\u8d1f\u8f7d\u8dd1\u6ee1\uff1f"},"content":{"rendered":"<p>\u5728<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/hk\/cn2\/\" target=\"_blank\">\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528<\/a>\u57fa\u7840\u8bbe\u65bd\u9886\u57df\uff0c\u7f51\u7edc\u722c\u866b\u548c\u670d\u52a1\u5668\u8d1f\u8f7d\u7ba1\u7406\u5df2\u6210\u4e3a\u6280\u672f\u4e13\u4e1a\u4eba\u5458\u5173\u6ce8\u7684\u91cd\u8981\u95ee\u9898\u3002\u968f\u7740\u81ea\u52a8\u5316\u811a\u672c\u6301\u7eed\u904d\u5386\u7f51\u7edc\uff0c\u7406\u89e3\u5b83\u4eec\u5bf9\u670d\u52a1\u5668\u6027\u80fd\u7684\u5f71\u54cd\u5bf9\u4e8e\u7ef4\u62a4\u6700\u4f73\u57fa\u7840\u8bbe\u65bd\u5065\u5eb7\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u6df1\u5165\u63a2\u8ba8\u4e86\u7f51\u7edc\u722c\u866b\u4e0e\u670d\u52a1\u5668\u8d44\u6e90\u4e4b\u95f4\u7684\u590d\u6742\u5173\u7cfb\uff0c\u7279\u522b\u5173\u6ce8CPU\u4f7f\u7528\u6a21\u5f0f\u3002<\/p>\n<h2><strong>\u6df1\u5165\u7406\u89e3\u7f51\u7edc\u722c\u866b\uff1a\u8d85\u8d8a\u57fa\u7840<\/strong><\/h2>\n<p>\u4ece\u672c\u8d28\u4e0a\u8bb2\uff0c\u7f51\u7edc\u722c\u866b\u662f\u7cfb\u7edf\u6027\u6d4f\u89c8\u548c\u7d22\u5f15\u4e92\u8054\u7f51\u7684\u590d\u6742\u8f6f\u4ef6\u3002\u7136\u800c\uff0c\u5b83\u4eec\u7684\u590d\u6742\u6027\u8fdc\u8d85\u7b80\u5355\u7684\u7f51\u9875\u6293\u53d6\uff1a<\/p>\n<ul>\n<li>\u641c\u7d22\u5f15\u64ce\u722c\u866b\uff08\u5982Googlebot\u3001Bingbot\uff09\uff1a\u9075\u5faa\u7279\u5b9a\u534f\u8bae\u7684\u7cfb\u7edf\u7d22\u5f15\u673a\u5668\u4eba<\/li>\n<li>\u6570\u636e\u6316\u6398\u722c\u866b\uff1a\u4e3a\u5b9a\u5411\u4fe1\u606f\u63d0\u53d6\u8bbe\u8ba1\u7684\u81ea\u5b9a\u4e49\u811a\u672c<\/li>\n<li>\u76d1\u63a7\u722c\u866b\uff1a\u68c0\u67e5\u7f51\u7ad9\u53ef\u7528\u6027\u548c\u6027\u80fd\u7684\u81ea\u52a8\u5316\u5de5\u5177<\/li>\n<li>\u7814\u7a76\u722c\u866b\uff1a\u6536\u96c6\u7279\u5b9a\u6570\u636e\u96c6\u7684\u5b66\u672f\u548c\u7814\u7a76\u5bfc\u5411\u673a\u5668\u4eba<\/li>\n<\/ul>\n<h2><strong>\u670d\u52a1\u5668\u8d1f\u8f7d\u5cf0\u503c\u7684\u6280\u672f\u5256\u6790<\/strong><\/h2>\n<p>\u5728\u68c0\u67e5\u670d\u52a1\u5668\u6027\u80fd\u6307\u6807\u65f6\uff0c\u722c\u866b\u5bfc\u81f4\u7684\u8d1f\u8f7d\u5cf0\u503c\u5448\u73b0\u51fa\u72ec\u7279\u7684\u6a21\u5f0f\uff1a<\/p>\n<ul>\n<li>CPU\u7ebf\u7a0b\u9971\u548c\uff1a\u591a\u4e2a\u5e76\u53d1\u8bf7\u6c42\u8feb\u4f7f\u7ebf\u7a0b\u6c60\u6269\u5c55<\/li>\n<li>I\/O\u7b49\u5f85\u72b6\u6001\uff1a\u5feb\u901f\u6587\u4ef6\u8bbf\u95ee\u8bf7\u6c42\u5bfc\u81f4\u7684\u78c1\u76d8\u6d3b\u52a8\u589e\u52a0<\/li>\n<li>\u5185\u5b58\u7f13\u51b2\u533a\u6ea2\u51fa\uff1a\u91cd\u590d\u5185\u5bb9\u8bf7\u6c42\u5bfc\u81f4\u7684\u7f13\u5b58\u9971\u548c<\/li>\n<li>\u7f51\u7edc\u5957\u63a5\u5b57\u8017\u5c3d\uff1aTCP\u8fde\u63a5\u6c60\u67af\u7aed<\/li>\n<\/ul>\n<h2><strong>\u9999\u6e2f\u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\uff1a\u72ec\u7279\u6311\u6218<\/strong><\/h2>\n<p>\u9999\u6e2f\u5728\u5168\u7403\u4e92\u8054\u7f51\u57fa\u7840\u8bbe\u65bd\u4e2d\u7684\u6218\u7565\u4f4d\u7f6e\u5e26\u6765\u4e86\u7279\u5b9a\u7684\u8003\u8651\u56e0\u7d20\uff1a<\/p>\n<ol>\n<li>\u5730\u7406\u4f18\u52bf\uff1a\u9760\u8fd1\u4e3b\u8981\u4e9a\u6d32\u5e02\u573a\u5438\u5f15\u66f4\u591a\u722c\u866b\u6d3b\u52a8<\/li>\n<li>\u7f51\u7edc\u5bc6\u5ea6\uff1a\u6570\u636e\u4e2d\u5fc3\u9ad8\u5ea6\u96c6\u4e2d\u52a0\u5267\u722c\u866b\u6d41\u91cf<\/li>\n<li>\u8de8\u5883\u6d41\u91cf\uff1a\u5f71\u54cd\u722c\u866b\u884c\u4e3a\u7684\u590d\u6742\u8def\u7531\u6a21\u5f0f<\/li>\n<li>\u6cd5\u89c4\u9075\u4ece\uff1a\u5f71\u54cd\u722c\u866b\u7ba1\u7406\u7684\u7279\u5b9a\u6570\u636e\u4fdd\u62a4\u8981\u6c42<\/li>\n<\/ol>\n<h2><strong>\u8bc6\u522b\u6076\u610f\u722c\u866b\u6a21\u5f0f<\/strong><\/h2>\n<p>\u5b9e\u65bd\u9ad8\u7ea7\u68c0\u6d4b\u673a\u5236\u9700\u8981\u7406\u89e3\u590d\u6742\u7684\u722c\u866b\u884c\u4e3a\u6a21\u5f0f\u3002\u4ee5\u4e0b\u662f\u8bc6\u522b\u65b9\u6cd5\u7684\u6280\u672f\u7ec6\u5206\uff1a<\/p>\n<ul>\n<li>\u8bf7\u6c42\u6a21\u5f0f\u5206\u6790\uff1a\n<ul>\n<li>\u975e\u6807\u51c6User-Agent\u5b57\u7b26\u4e32<\/li>\n<li>\u4e0d\u89c4\u5219\u7684HTTP\u5934\u914d\u7f6e<\/li>\n<li>\u5f02\u5e38\u8bf7\u6c42\u65f6\u95f4\u95f4\u9694<\/li>\n<li>\u53ef\u7591\u7684IP\u8f6e\u6362\u6a21\u5f0f<\/li>\n<\/ul>\n<\/li>\n<li>\u8d44\u6e90\u6d88\u8017\u6307\u6807\uff1a\n<ul>\n<li>\u5e76\u53d1\u8fde\u63a5\u7684\u6307\u6570\u589e\u957f<\/li>\n<li>\u5e26\u5bbd\u4f7f\u7528\u7387\u4e0d\u6210\u6bd4\u4f8b<\/li>\n<li>\u6570\u636e\u5e93\u8fde\u63a5\u6c60\u8017\u5c3d<\/li>\n<li>\u4f1a\u8bdd\u5904\u7406\u5f02\u5e38<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u6280\u672f\u6df1\u5ea6\u5256\u6790\uff1a\u8d1f\u8f7d\u5206\u6790<\/strong><\/h2>\n<p>\u7406\u89e3\u670d\u52a1\u5668\u8d1f\u8f7d\u6307\u6807\u9700\u8981\u68c0\u67e5\u591a\u4e2a\u7cfb\u7edf\u7ea7\u6307\u6807\uff1a<\/p>\n<ol>\n<li>CPU\u8d1f\u8f7d\u5e73\u5747\u503c\u5206\u6790\uff1a\n<ul>\n<li>1\u5206\u949f\u8d1f\u8f7d\u5e73\u5747\u503c > 0.7 \u00d7 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\/>\n        &#8220;`<br \/>\n        User-agent: *<br \/>\n        Crawl-delay: 5<br \/>\n        Request-rate: 1\/5<br \/>\n        &#8220;`\n    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