搜索引擎抓取网站收录有何规律

By 公司动态

  谈SEO必谈收录,无收录不SEO。网站收录是SEO实战过程中,最重要的环节之一。关于这方面的技术文章,近乎饱和地充斥于网络中。通常情况下,大部分认为,网页不收录是网页质量差,原创度不够,或者外链少等原因,不能说是错的,这些只是站长们单方面认为的表面现象。今天,深圳关键词优化从搜索引擎的抓取方式简析一下的网站收录规律。
 
  大站比小站更受搜索引擎青睐
 
  网络上每天会出现成千上万的新页面,大站产生的新页面比小站多,搜索引擎抓取网页更倾向于网页多的大站,因为大型网站往往包含更多的页面,且质量比较高,搜索引擎则偏向于优先抓取和收录大站的页面。就是这样一个思路,提醒站长们做SEO要让网站中出现更多的内容,网页丰富则会引导搜索引擎频繁抓取和收录,这是做SEO的一个长期规划思路。
 
  搜索引擎优先抓取和收录入链多质量高的网页
 
  搜索引擎是通过网页之间的链接关系,发现并抓取互联网上的网页,众所周知,链接具有投票功能,投票越多的网页搜索引擎则会更加重视,优先抓取。谷歌提出的pagerank算法,可以依据链接关系对网页进行评分,决定网页URL下载顺序。所以,我们在SEO实战中,如果出现网页收录,则可以适当增加高质量外链,这里要特别注意“高质量”三个字。
 
  用户体验策略对网站更新收录的影响
 
  最近,SEO外包优化在优化网站时发现,更新了首页内容后网站排名会偶尔下降,快照莫名其妙地回档时,排名又恢复了。在仔细分析了百度站长平台的关键词与流量后,发现,在没有更改网站首页内容时,某一个关键词有一定的点击量,更新内容后,点击量变少了,当快照后退时,排名又起来了。因此推测,百度抓取和收录内容会适当的考虑用户体验,网站的点击量从侧面反映了用户体验。
 
  也就是说,搜索引擎会抓取和存储很多个网页快照,如果旧的网页快照更受用户喜欢,那么新的网页快照就不一定会被收录,因为搜索引擎始终要照顾用户体验。
 
  网页历史更新规律很重要
 
  搜索引擎的资源不是无穷的,他们也在尽最大努力节约资源,同一个网站,蜘蛛会根据网站的规模和更新频次决定抓取次数,尽量用最少的资源完成网站更新策略。搜索引擎会假设,过去频繁更新的网页,将来也会更新频繁。

By 公司动态

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