中原威科

由意外的收录引发对搜索引擎收录的猜测

昨天发布的两篇文章,发布时间为凌晨,内容是直接从百度官方公告复制过来的,除了在文章前加上了一段自己的见解外,无任何改动。分别搜索两篇文章的标题,百度的收录量分别为一百九十万和一百四十万所有,因为发布的不是新闻,而是百度很早就公布的内容,只是我刚发现而已,但两篇文章依然被收录了,非常意外,因为这两篇文章仅仅是我想记录下来,一字未动照搬过来的,所以并未希望百度会收录。由此产生以下猜测:

一、发布时间


发布时间在凌晨一点左右,曾有站长说过,由于凌晨大部分网站不会更新,所以整个网络的更新量很小,在这个时间更新百度会更容易收录。个人认为,搜索引擎对网站的抓取时间不尽相同,也许你在凌晨更新后蜘蛛并未过来抓取,而是发不完之后几个小时候才来抓取,比如我的小站,百度每天的抓取压力为5,比较悲催,呵呵。由于看不到服务器日志,所以这个问题有待研究。

二、页面相似度


两篇文章内容文字都占页面总文字的50%以下,这个是我粗略估计的。有一种说法,内容相似度在50%以下的页面更容易被搜索引擎收录,关于页面相似度的检测方法可以搜索一下。所以我认为页面相似度可能占一部分原因。

三、链接


两篇文章内容部分未加一个链接,无论内链还是外链,一般来说一篇文章加两三个链接应该没什么问题,你会看到很多页面一篇文章内密密麻麻的都是内链,比如百科。。。权重高,不跟他比。反正我觉得新浪博客一般不加外链收录很快,加了外链内容质量好一点收录会稍微慢,质量不行的直接不收录。内容链接这个东西值得研究一下。

四、Ping


发完文章后Ping一下,让搜索引擎知道你更新了,从而及时抓取页面。这个问题以后再发两篇文章做个测试吧。

五、标题


标题很重要,一般来说标题都要尽量个性、与众不同,但搜索引擎索引的页面中也不乏标题一模一样的页面,比如也许你在新浪发布了一篇文章,没有被收录,或者排名不是很好,被别人转载之后却被收录或者获得了不错的排名。这个说法可能会被大神说是胡吹八咧,但确实有这种情况出现,并非所有,而大神们又不会告诉你为什么。。。所以自己猜吧。

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