Site, about the inclusion of time misunderstanding

For SEO, included is the first step of the work, see Site:domain.com is also one of the daily routine. But KYW found that a lot of SEO enthusiasts and professional http://www.aliyun.com/zixun/aggregation/9102.html ">seoer, all the search engine display date, mistaken for the date of the page included." KYW just came across an example, let me prove it.

The thought of KYW
If the date is a collection date, the snapshot and page should be consistent;
If not, it means that the date is not included in the page, but the search engine updated the internal data just.

The following figure:

The red line part of the show is 2009-1-14, it is this day, Baidu has a relatively large update.
Of course, the snapshots of www.SEOtest.cn in the picture are in line with the actual situation.

Look at this website again: www.51bangde.com

If the page is included in the 14th, the snapshot and the actual page should be the same, but please see my snapshot and the actual screenshot:

Snapshot screenshot:

Actual Page screenshot:

In contrast, you can see that the page of the snapshot is still the old version. Because I know more about www.51bangde.com, they have been revised for some days, but the snapshot has not been updated. This is also used to illustrate: The search engine displays the date, not the date that the page is included.

So why, a lot of Web site update date change every day, snapshots and actual match it?
Answer: This and the website weight has the relation, the search engine attention's website certainly will carry on the visit, collects quickly, the snapshot updates also quickly.
Author: kyw@ Shanghai 863.html ">seo Search engine Optimization Laboratory
Original link: http://www.seotest.cn/blog/site-time-jieshi.html
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