码迷SEO独家内参(二)百度蜘蛛类型及蜘蛛抓取规律揭秘
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今天<span style="color: black;">起始</span>探讨正式内容的<span style="color: black;">第1</span>讲了：百度蜘蛛。</span><span style="color: black;">针对</span><span style="color: black;">广泛流传的百度蜘蛛IP类型做一下深入探讨。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">咱们<span style="color: black;">晓得</span>，知识是零散的点，经验是点的连线。</span><span style="color: black;"><span style="color: black;">因此</span><span style="color: black;">大众</span>在学习的时候养成大局观，比</span><span style="color: black;">如说，<span style="color: black;">咱们</span><span style="color: black;">此刻</span>在这个位置。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7g8pX2VwWCWOXTSCkAU7wBLialXP0887UYk2a457nd2LdBSdy4YEzbjwQ/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">关于码迷：</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">7年SEOer，摩天楼内容助手作者，专注SEO算法<span style="color: black;">科研</span>，欢迎志同道合的盆友加我交流。</span></p>
<h2 style="color: black; text-align: left; margin-bottom: 10px;"><strong style="color: blue;"><span style="color: black;">探索<span style="color: black;">办法</span></span></strong></h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷<span style="color: black;">经过</span>对7个网站的爬虫日志做<span style="color: black;">跟踪</span>，将百度蜘蛛分为收录蜘蛛、首页收录蜘蛛、快照蜘蛛三大类。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷用<span style="color: black;">掌控</span>变量法，<span style="color: black;">经过</span>现象看规律，<span style="color: black;">经过</span>规律看本质，<span style="color: black;">经过</span>本质讲对策。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">经过</span>线上实验来<span style="color: black;">循序渐进</span>做验证推导过程。</span></p>
<h2 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">百度蜘蛛类型有哪几种</span></strong></span></h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">下图是网上广泛流传的百度蜘蛛IP类型说明，<span style="color: black;">其中123开头的认为是降权蜘蛛，220开头的<span style="color: black;">通常</span>认为是权重蜘蛛。</span></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gB03n90EMDHdZAqwwIkPIicu0JEicegpTqg2DPywSicYyXTAWTQYeNvWew/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">下图是某站长工具<span style="color: black;">供给</span>的蜘蛛日志分析工具，<span style="color: black;">亦</span>是将百度蜘蛛分为高低权重之分。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7g9lEwrqiajolT4w51ubA5gQ4WmB5aibfqicWkb7LDBvxShxaVw0QZCvtqw/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">到底有木有降权蜘蛛</span></strong></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">看了百度站长的平台的回复（年代比较久远），百度官方回复是“<span style="color: black;">无</span>”。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">http://bbs.zhanzhang.baidu.com/thread-6387-1-1.html</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gCn0H6X4ps9Q7yZK6GC3kONkUJjju7jX7pZdpzYRfyekHVqlAy3hbMA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷<span style="color: black;">亦</span>认为蜘蛛<span style="color: black;">无</span>权重高低之分</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">为何</span>分降权蜘蛛、权重蜘蛛之说？</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;"><span style="color: black;">倘若</span>蜘蛛有权重高低之说，难道百度一<span style="color: black;">起始</span>就<span style="color: black;">晓得</span>你的网站质量吗，码迷觉得<span style="color: black;">满脸</span>懵X</span>，百度蜘蛛你真TN的<span style="color: black;">能够</span>，都能预测<span style="color: black;">将来</span>了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gOtibficpB5UTJRib3cjxEBXjecQYhJic2hawQI1VemF5WoI87magUgQiaIA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;"><strong style="color: blue;"><span style="color: black;">百度蜘蛛<span style="color: black;">归类</span>的猜想</span></strong></span></h3>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">百度爬虫是干什么的，<span style="color: black;">便是</span>把你的网站页面内容扒下来，<span style="color: black;">而后</span>把数据拆分为标题、摘要、头图、正文等结构化数据，放到百度的数据库里面，<span style="color: black;">供给</span>给用户搜索。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">然则</span>网页数量以百亿计，<span style="color: black;">每一个</span>页面都有快照备份是不现实的。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷大胆猜想，百度蜘蛛应该有功能之分，并未高低权重之说。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷（网站www.mamioo.com）把百度蜘蛛的爬虫日志存放到数据库里面，进行分析<span style="color: black;">跟踪</span>。看到了几个现象，<span style="color: black;">咱们</span>再总结规律，探讨本质。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">现象1：内页爬取规律</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">新上的某个网页的爬取记录，我们<span style="color: black;">能够</span>看到，<span style="color: black;">一般</span>都是123开头的蜘蛛先行，<span style="color: black;">而后</span>220开头的蜘蛛后行。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gxkxqTBU45DbLGbpwhLJWOrVD95R9hia2gA2QqibAMtQJn3ngMwPa7ibnA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">而后</span>隔1-2天，快照必会有更新。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">例如</span>2019年7月27号220开头蜘蛛<span style="color: black;">拜访</span>之后，7月28日快照就更新了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gNyayBMCqDnu5q21DVBLpcRybYPw9TcDrMuiaj8ex8Xst9qY97Pnia3ug/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">现象2<strong style="color: blue;"><span style="color: black;">：</span></strong>首页爬取规律</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">看下图，mamioo首页的百度爬虫日志，19年6月26上线后，基本上<span style="color: black;">亦</span>是123开头的爬虫先行，220爬虫后行，隔天快照更新。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7ghU17kUCtW5qg3nOLmWSNqFu7v1qNe6JYgTiaPvAhBSWfO6OXawugicyQ/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">现象3<strong style="color: blue;"><span style="color: black;">：</span></strong>页面404后的百度爬取规律</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷人为实验了2个404页面，123开头的爬虫爬取后，<span style="color: black;">通常</span>是2次404之后，<span style="color: black;">再也不</span>派爬虫来爬了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gcFV6brnk4snuBSmKuxaYZjM3mM1NFl5SHCYiafggKGxjStn3KhDYiafw/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gZZ16DygicK9tD1eUWoOJqWicrMdvnDiaBibj7c9lDuIbkpN95l18dfTkGg/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">现象4<strong style="color: blue;"><span style="color: black;">：</span></strong>劣质页面爬取规律</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷<span style="color: black;">亦</span><span style="color: black;">实验</span>了随机段落混合而成的内容（<span style="color: black;">例如</span>下图妹子不错，但妹子上面的文字很烂），百度123开头蜘蛛抓了一次就再<span style="color: black;">亦</span>不抓了，5月11号上线，<span style="color: black;">迄今</span>无快照。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gic5j4jZMG7cic5qOHTSfNfpFfEXNTtdHFcRbe9pTibibPYh9JYcGTSyMiag/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gDgHIE92xY1lqMp8TibVuicnGYtOyWtOBUUjEAxmo3clZA8prgBEv3Vqg/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">看来百度对随机拼凑的内容还是有识别的。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">现象5<strong style="color: blue;"><span style="color: black;">：</span></strong>百度站长主动推送后爬取规律</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">经过</span>站长主动推送接口推送后，<span style="color: black;">通常</span>7天内就有123开头爬虫到访，<span style="color: black;">倘若</span>内容质量较好，会有220开头爬虫二次到访，<span style="color: black;">通常</span>3天内必有快照。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gudGq7wIy2o3VBgmjQa2v5PDaO8gnl71T9XicWgiaZkZZuRibVj7rO6wJA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7grWEcqefocpMlZaiaCupJE5Bn8rFlbe0BL510I40jOLwjzzlq3S2glZQ/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">现象6<strong style="color: blue;"><span style="color: black;">：</span></strong>初次提交仅<span style="color: black;">经过</span>百度主动推送更新数据</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷有个新站，百度爬虫<span style="color: black;">始终</span>不来，<span style="color: black;">经过</span>主动提交、sitemap、站长反馈都不来蜘蛛，就直接<span style="color: black;">经过</span>更新数据方式进行提交。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">当天提交后，次日220开头百度爬虫造访，但3天内不<span style="color: black;">必定</span>有快照，<span style="color: black;">通常</span>需要2个周<span style="color: black;">上下</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gzPsvYlNLC424icuZLicueNBN34rwDbfVoQlhbs8whVAadRBeruAt9p7A/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gzD192EwpicsiaBoWldzbL2yVQ7dpoBW1pKgmZKyFxTOIV8MAuiaYhON1w/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"><strong style="color: blue;"><span style="color: black;">现象7<strong style="color: blue;"><span style="color: black;">：</span></strong>部分百度蜘蛛只爬首页</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7g3zupiarWkkqvrEZ0A7oattum0QudmcWQ4c0eoicls65gbELfCrMrJfJQ/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">总结一下百度蜘蛛抓取规律，要不<span style="color: black;">大众</span>都凌乱了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">我是干扰：</span><span style="color: black;">看了<span style="color: black;">非常多</span>采集码迷<span style="color: black;">文案</span>的，默默诅咒一下吧，码迷真的非常讨厌拿来主义。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">规律1</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">123开头蜘蛛先行，对网页做初步分析，以便为后面正式到网页开展工作做准备。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">规律2</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">220开头蜘蛛<span style="color: black;">通常</span>在123蜘蛛造访后，再次造访。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">规律3</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>网页<span style="color: black;">不外</span>关， 220开头蜘蛛不会造访。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><strong style="color: blue;"><span style="color: black;">规律4</span></strong></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">更新页面是220开头直接来造访。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span><span style="color: black;">大众</span>还是拐<span style="color: black;">不外</span>弯来，码迷把某单页站点的123,220蜘蛛每日<span style="color: black;">拜访</span>次数做成柱状图。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7guK4o6hB04yF7Cg4sVeiaVqHDcMYiaicW1O0GviciayZEN3Wo1Q82DSWOErw/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">请看下图，蓝色是123开头的蜘蛛，</span><span style="color: black;">橘色是220开头的</span><span style="color: black;">蜘蛛</span><span style="color: black;">。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">能够</span>说不管是高质量页面还是低质量页面都有123,220开头的蜘蛛来，还经常成对<span style="color: black;">显现</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">好啦，你们是不是明白过来了？</span></p>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">结论1：</span><span style="color: black;">123开头IP是收录蜘蛛</span></h3>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">所说</span>收录蜘蛛<span style="color: black;">指的是</span>，百度爬虫造访后，百度后端会<span style="color: black;">经过</span>一系列判定手段，如反作<span style="color: black;">坏处</span>处理、原创度检测等等，决定<span style="color: black;">是不是</span>能够<span style="color: black;">能够</span>收录，<span style="color: black;">是不是</span><span style="color: black;">能够</span>牵引百度快照的蜘蛛到访。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">无快照的页面（不收录，无索引）</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="https://mmbiz.qpic.cn/mmbiz_jpg/dOWkCIibteniapphIGaKsaj0TXv0sl0C7gY0ICiaGCuJaZBicOBcdka0gpziam1hg10pjI5iay92BCr1NlXzSgLKibfFg/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">结论2：220开头的是快照蜘蛛</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">当收录蜘蛛检测网页<span style="color: black;">经过</span>了收录标准之后，<span style="color: black;">经过</span>快照蜘蛛生成结构化数据，进入倒排索引。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">这个时候的网页才有快照，<span style="color: black;">才可</span>被用户搜索到。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 50%; margin-bottom: 20px;"></p>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">结论3：</span><span style="color: black;">每次快照更新前，收录蜘蛛、快照蜘蛛均有造访</span></h3>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">结论4：</span><span style="color: black;">收录蜘蛛与快照蜘蛛<span style="color: black;">拜访</span>比率</span></h3>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">通常</span>不超过2:1， <span style="color: black;">倘若</span>收录蜘蛛<span style="color: black;">显现</span>次数远远大于快照蜘蛛，说明网页内容<span style="color: black;">不外</span>关。</span></p>
<h3 style="color: black; text-align: left; margin-bottom: 10px;"><span style="color: black;">结论5 <span style="color: black;">无</span>什么<span style="color: black;">所说</span>的提权蜘蛛之说</span></h3>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">所说</span>的高权重蜘蛛是当网页达到快照的收录标准后才会来<span style="color: black;">拜访</span>的，不是<span style="color: black;">经过</span>外链直接来的哦。</span></p>
<h2 style="color: black; text-align: left; margin-bottom: 10px;"><strong style="color: blue;"><span style="color: black;">SEO策略延伸</span></strong></h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">码迷<span style="color: black;">始终</span>倡导科学的SEO，<span style="color: black;">然则</span><span style="color: black;">此刻</span>绝大部分SEO从业人员只<span style="color: black;">晓得</span><span style="color: black;">每日</span>去写内容，<span style="color: black;">而后</span>就等着内容收录，等着排名。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">有些人总提出<span style="color: black;">这般</span>的问题：</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">为何</span>我的网站<span style="color: black;">始终</span>没收录？</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">为何</span>有收录了却<span style="color: black;">无</span>排名？</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">咱们</span><span style="color: black;">已然</span><span style="color: black;">晓得</span><span style="color: black;"><span style="color: black;">能够</span><span style="color: black;">不消</span><span style="color: black;">经过</span>“site”命令，<span style="color: black;">经过</span>百度爬虫日志，就<span style="color: black;">能够</span>获取网站的收录<span style="color: black;">状况</span>。</span></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">因此</span>说，网站爬虫分析系统非常重要！</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">一个好的网站爬虫分析系统有如下几个功能点：</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">功能1 <span style="color: black;">全部</span>网站的抓取频率趋势</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">能够</span>简单<span style="color: black;">认识</span>网站在百度眼中的质量。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">抓取频率越高，说明百度越<span style="color: black;">爱好</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>抓取频率<span style="color: black;">始终</span>走低，就要关注近期的内容质量<span style="color: black;">是不是</span>变差了。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>频率大幅度降低，查看是不是网址有报错。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">功能2 查看收录蜘蛛与蜘蛛比率</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">仅有</span>快照蜘蛛<span style="color: black;">拜访</span>过的页面才是有效收录，<span style="color: black;">才可</span>获取百度排名。</span><span style="color: black;"><span style="color: black;">因此</span><span style="color: black;">倘若</span><span style="color: black;">非常多</span>页面光有收录蜘蛛（123开头的），而快照蜘蛛（220开头）较少，内容<span style="color: black;">必定</span>有问题。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">查一下内容质量（摩天楼内容助手<span style="color: black;">能够</span>有效<span style="color: black;">处理</span>这一痛点）、内容<span style="color: black;">宣传</span>之类<span style="color: black;">是不是</span>触发了百度算法。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">功能3 提取重要排名页面的抓取规律</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">通常</span><span style="color: black;">状况</span>下，百度会对已有的重要排名页面<span style="color: black;">定时</span>更新快照，123,220开头的蜘蛛<span style="color: black;">定时</span>轮流到访。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>重要排名页面的抓取频率<span style="color: black;">连续</span>走低，说明排名预计会有所下降，尽早<span style="color: black;">查询</span><span style="color: black;">原由</span>。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">另一</span>重要排名页面<span style="color: black;">通常</span>爬虫频率<span style="color: black;">很强</span>，是重要的新内容<span style="color: black;">发掘</span>入口，所有<span style="color: black;">倘若</span>有<span style="color: black;">关联</span>的新内容，<span style="color: black;">能够</span>在该页面布局，以达到秒收的效果。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">倘若</span>有编程经验的<span style="color: black;">朋友</span>，<span style="color: black;">能够</span><span style="color: black;">根据</span>以上码迷的想法打造自己的爬虫分析系统。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今天就讲到<span style="color: black;">这儿</span>，下一节码迷将对“百度爬虫抓取频率以及优化策略 ”展开探讨，欢迎<span style="color: black;">大众</span>关注。</span></p>
<h2 style="color: black; text-align: left; margin-bottom: 10px;"><strong style="color: blue;"><span style="color: black;">转载许可</span></strong></h2>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">今天就这些，下一节<span style="color: black;">咱们</span>开撕百度内部基本流程。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><span style="color: black;">微X</span>公众号<span style="color: black;">优秀</span>评论前10名将会<span style="color: black;">得到</span>码迷整理的66个百度专利，先到先得。</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">本系列独家首发于www.mamioo.com，同步发布于公众号”码迷SEO“，未经<span style="color: black;">准许</span>禁止<span style="color: black;">转载</span><span style="color: black;">采集！</span></span><span style="color: black;">违者码迷将诉诸本站法律顾问予以追究<span style="color: black;">关联</span>法律责任！</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><img src="data:image/svg+xml,%3C%3Fxml version=1.0 encoding=UTF-8%3F%3E%3Csvg width=1px height=1px viewBox=0 0 1 1 version=1.1 xmlns=http://www.w3.org/2000/svg xmlns:xlink=http://www.w3.org/1999/xlink%3E%3Ctitle%3E%3C/title%3E%3Cg stroke=none stroke-width=1 fill=none fill-rule=evenodd fill-opacity=0%3E%3Cg transform=translate(-249.000000, -126.000000) fill=%23FFFFFF%3E%3Crect x=249 y=126 width=1 height=1%3E%3C/rect%3E%3C/g%3E%3C/g%3E%3C/svg%3E" style="width: 50%; margin-bottom: 20px;"></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">文末福利：</span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">摩天楼内容助手正在内测，为你排查SEO中原创内容无排名、关键词布局低质、网页主题不集中、<span style="color: black;">关联</span>词数量不足、<span style="color: black;">关联</span>词密度不均5大网页质量问题， 加<span style="color: black;">码迷QQ群734299959</span>可下载软件，<span style="color: black;">认识</span><span style="color: black;">更加多</span>。</span></p>
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