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Why a website is ranked high, may not be able to see through these methods. But the general site rankings can not be found, or suspected of being punished, through these steps to see some clues.
First look at the domain whois information.
Note that the first registration of the domain name time, there is no registrant in the middle, this WHOIS tool can also display the type of host used.
If the domain name registration is only a few months, in the Google rankings do not go on very normal, do not look down.
Check that the Web site DNS settings are correct.
Many of China's server settings have problems, of course, this does not necessarily affect rankings, but some server technology problems may affect the search engine on the Web page crawl.
Check which sites are on the IP address of the site.
Can use this reverse IP tool to check, randomly pick a few domain names, look at Google, Yahoo, Baidu included. If the site contains a problem, it may indicate that the IP has been a problem.
Check website links with Yahoo.
With Yahoo! Explorer Check, if the reverse link has a lot of obvious forums, blogs, message this spam link, this is not a good phenomenon.
Check the recorded situation.
In Google, Yahoo, Baidu check the page included, whether there is a large number of supplementary materials.
Home page and several main columns of the intuitive feeling.
This may be more by experience. For example, the bottom of the home is not a large number of links, these links if also happen to be in the same IP address, it is more to explain the problem.
Another example page title length, is not the browser the entire title bar is not finished? This is where many people like to pile up keywords, generally speaking, 20 to 30 words is enough.
Then look at the description of the label, keyword tags have a tendency to accumulate?
Check for hidden text.
Press CTRL A to select all the content on the Web page, can you see the text that you didn't see before the full selection? Do you see the CSS file has not set the text size to zero, placed in the invisible layer, or on the screen can not be displayed position?
Web site structure and Web site static.
There are a lot of Web site URLs with a lot of question marks, but in the wonder why the collection of bad.
Check to see if multiple domain names point to the same content.
Select some specific sentences on the Web page, such as copyright information, contact phone number, QQ numbers, etc., search Google and Baidu. Sometimes you will find the same company name, the phone number will appear on multiple sites, and then go to these sites to see the content, it is exactly the same. It is not surprising that such sites are punished.