Skillfully using footprints to find out the chain resources

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A few days ago bought the Zac "seo actual password", from which to learn what footprints is, the following to share how to use footprints to find out the chain of resources.

Footprints can be understood as footprints, traces. For example, a common program, templates, and so on, will leave the same traces, we can use this trace to crawl the site to meet these characteristics. Why crawl these sites? What's the use after crawling? These should not be explained.

Take "powered by" this most basic footprint for example, basically all CMS, forum, or blog program will have this kind of footprint, generally is at the bottom of the website page, then usually will link to the relevant official website. Like what:

(The above 3 screenshots are respectively Discuz,dedecms,emlog "powered by" footprint. )

And then look at one example, here take the emlog procedure as an example

These results are included in the phrase you entered, the query I entered here is not only "powered by emlog" Reason is not all Emlog stations are accepted comments, webmaster can choose to comment on the function to close. Because my purpose is to spam, so this does not open comments to me, so I added "add comment" to make sure that the site I was searching for can add comments.

This query statement you can assemble yourself. In general, the more complex the footprint query you enter, the fewer sites you can harvest. But there are no useful sites that you definitely don't need, so make sure you get a big, usable list by adjusting the query.

It is also important to note that these commands may not be applicable to all search engines. Many Google search instructions are not available in Bing,yahoo and other search engines. So here you can choose the whole two sets of footprints instructions, a set of specifically targeted at Google, a set of everyone can apply.

The above is footprints some of the explanations, then how do we know what should be searched to find the target we need? How to use footprints to find out the chain of resources?

Quite simply, we just need to look at a few of these types of stations and see what the common features are all about. This common feature means that only such websites have such characteristics, but not other types of programs.

The first is to look at the name of the program platform you are targeting. Look at the page there is no such powered by the information, of course, some stations may be removed, then you need to look at other common features, the most typical such as the site's navigation, the end of the page.

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