Here bloggers listed 12 SEO staff daily use of a number of high-frequency instructions, these instructions for ordinary users, useless, but for professionals, will allow you to accurately query the information you need.
Site directive
Query the ingest of a particular site: If the result has a return data, it indicates that the site has been included, and if the returned data is empty, the site is not included. If it has been included in the past, now to check no data is the search engine removed from the index, we often call it "by K".
Usage: site:www.ppblog.cn
LINK directive
Check outside the chain directive: generally in Yahoo query accuracy ratio is high. Querying for external links to a particular site is a major factor in getting rankings and weights, as well as site PR values. Yahoo provides the top 1000 external link sites. Google also supports this directive, but the only downside is that link can only return part of the Google Index library.
Usage: Link:www.ppblog.cn
Related directive
Query the relevant page directive: You can use it to query and your site content related sites, using the related instructions can easily find and your most relevant opponents. This directive only supports Google search engines.
Usage: related:www.ppblog.cn
Info command
Info directive: Can query a specific site's ingest information, recent snapshot situation, similar pages, site links, internal links and Web pages containing domain names. is a comprehensive directive. This directive only supports Google search engines.
Usage: info:www.ppblog.cn
After using the Info directive, Google provides information about rich marketing URLs, such as webpage snapshots, similar web pages, ingest situations, and anti-chain situations.
ALLINTEXT/INTEXT directive
ALLINTEXT directive: A valid query for a particular keyword word occurs on a particular page document. Discover the most relevant web pages and potential linked objects. This directive only supports Google search engines.
Usage: Allintext: Weight Loss
ALLINURL/INURL directive
Find a specific page URL that contains a specific URL keyword that can be used separately or combined with other instructions to find the content of a particular page, which only supports the Google search engine.
Usage: site:www.ppblog.cn inurl:Delphi
Allintitle/intitle directive
Finds text that is the same as the information entered in a particular page title. It's good to find a competitor. This directive only supports Google search engines.
Usage: allintitle:www.ppblog.cn intitle: Programming
Allinanchor/inanchor directive
An anchor text link that can be understood to find a specific keyword. A bit like looking outside the chain case, the difference is that the input is text. This directive only supports Google search engines.
Usage: allinanchor:www.ppblog.cn inanchor: Programming
Define directive
Finding a specific keyword is very effective. Google than Baidu query results relatively accurate, but the scope of Baidu is broader, in practice can be based on their own situation.
Usage: define:seo
filetype directive
Search for files with specific suffixes, such as PDF, Doc, and so on.
Usage: filetype:pdf
Baidu as the object of input instructions, the return is Baidu Library itself PDF documents.
intitle directive
The intitle directive is used to query specific papers or to appear in the title of the article specific keywords.
Usage: intitle:SEO technology
Search SEO technology keywords, return the result is all the page titles are included in the SEO technology.
Domain directive
With the domain directive can be queried to a site Baidu related fields, that is, Baidu outside the chain, the directive only applies to Baidu search engine, in Google, the directive is equivalent to a keyword.
Usage: domain:www.ppblog.cn
Reprint please indicate source: Http://www.ppblog.cn/seo commonly used search engine instruction. html
SEO Common search engine directives