How to see if the site is too optimized

How to see if the site is too optimized? Let's take a look at a webmaster to give us the experience, in fact very simple we look at these pictures of the operation process.

Domain
Baidu: Check the content of the page contains a keyword. such as: domain: The search result is a key word group (domain name) of all pages. Similarly, domain: refers to the domain name contains all the pages, and direct search SEO similar. If you want to find out how many Web pages contain your URLs, domain can be useful.
Google:domain does not represent an instruction. Just an ordinary keyword.
Yahoo: and site: The same domain name, look up all the included pages under the domain name.

1. Baidu (www.baidu.com): Link: The domain name of the current external link information 17, Baidu Check the external link is not accurate, but use this method to check the forum, the external link to the blog is quite accurate, if a large number of forums, blog message links in the short term, It is basically possible to assume that a number of improper practices have been taken to obtain a large amount of external links '
2. Yahoo (www.yahoo.cn): link:http://domain name Yahoo tools in several search engines to query external links, is quite accurate, generally found is a link to the external links, can not find forums, blog messages and other external links;
3. Youdao (www.youdao.com): Link: The domain name to check the external link is also quite accurate, with the principle of Yahoo almost, but also generally find links to the external links, can not find the forum, blog messages and other external links;
4. Google (www.google.com): Link: The domain name can find a small number of external links, basically all involved in some.

About link and domain in different search engines represent different meanings
Link
Baidu: Link does not represent a directive, just a common keyword. Link: The domain name search result is a keyword (domain name) phrase of all the pages, and other common keyword search, as well as not exactly find reverse link.
Google: Looking for backlinks, but contains only a small portion of all backlinks for the site. It is recommended to use Google Webmaster tools to check all backlinks in the site.
Yahoo: Looking for a reverse link.