Search engine Optimization (SEO) toolset

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(1) Content and structure tools

Search engine Crawl Content simulator--can simulate spider crawl specify webpage text,link,keywords and description information
http://www.webconfs.com/search-engine-spider-simulator.php

Similar page detection Tool-check the similarity of two pages. If the similarity is more than 80%, you may be punished.
http://www.webconfs.com/similar-page-checker.php

Google Sitemaps online create Google Sitemaps sitemap file

Chinese: http://www.xinqj.com/sitemap/sitemap.asp

English: http://www.xml-sitemaps.com/

(2) Comprehensive query tools

Webmaster toolbox--can query a site of Google Pagerank, Alexa world rankings, ranking of Chinese websites, as well as in several major search engines included in the reverse link.
http://www.flashplayer.cn/webmaster-toolbox/

Site collection query-at the same time query Google, Baidu, Yahoo and other 8 search engines included in the situation
Http://tool.cndw.com/Shoulu/Index.asp

Keyword ranking query-you can also query the 3 search engines to specify the number of keywords in the specified page rankings.
Http://www.seores.com/search/keywordrank.asp

Google each server keyword ranking query-query in Google's various servers, the designated Web page to specify the ranking of keywords, can be used as a take-off and landing reference
Http://tool.cndw.com/Rank/Index.asp

(3) Keyword tools

Google AdWords Keyword Tool-queries the specified keyword extension matching, search volume, trends and popularity.
Https://adwords.google.com/select/KeywordToolExternal

Baidu related search--sort by popular programs, list the specified keyword-related extension matching and popularity
http://d.baidu.com/rs.php

Keyword Density analysis tool--Analyze the number of occurrences of a specified keyword on a specified page, and the corresponding percentage density

Chinese: http://tool.cndw.com/Seo/Key_Density.asp

English: http://www.keyworddensity.com/

(4) Keywords popular ranking and index

Baidu Rankings: http://top.baidu.com

Baidu Index: http://index.baidu.com/

Yahoo List: http://misc.yahoo.com.cn/top_index.html

Sogou Index: http://www.sogou.com/top/?IPLOC=CN1102

Search Billboard: Http://www.soso.com/lhb/s_i_sosolhb.shtml

(5) Google Tools

Google Sitemaps--google launched a free service, an outstanding SEO tool
Http://www.google.com/webmasters/sitemaps/docs/zh_CN/about.html

Google Analytics--google launched a free analytics service. Provide a lot of professional reports on marketing and content optimization. It's a great help to search engine marketing.
http://www.google.com/analytics/zh-CN/

Google Dance Query Tools-not only can query dance situation, but also through e-mail timely access to the monthly Google dance notice
http://www.seochat.com/googledance/

Check the PR value on Google's servers--using this tool, you can determine whether PR is updated and predict the PR value after the update.
Http://www.seochat.com/seo-tools/future-pagerank

Google PR History update schedule-see Google 2000 to date to update the PR of the specific time and cycle of length
Http://www.seocompany.ca/pagerank/page-rank-update-list.html

(6) Link tool

Link Extensive detection Tool-reverse link query tool. At the same time support Google, Baidu, Yahoo and other 8 search engines
Http://tool.cndw.com/LinkIn/Index.asp

Search for links in Google tools-you can grab text titles and links. The Chinese title shows a garbled
http://www.webconfs.com/google-backlink-checker.php

Yahoo's new link checker--You can query all pages in the Web site and reverse link
http://siteexplorer.search.yahoo.com/

Query the number of links in Google,yahoo,msn
http://www.trafficzap.com/linkpopularity.php

(7) Invalid link checking tool

Check the links within the specified page-including link validity checks, link text, link types
Http://www.seores.com/search/checkurl.asp

Glink Checker of the Consortium
Http://validator.w3.org/checklink

(8) Other tools

Website History Inquiry Tool--the Internet Archive of the United States has saved the website data from 1996, with the help of Alexa search engine
Http://web.archive.org/collections/web/advanced.html

Catalog Collection Query-check whether the site is logged in a number of important categories
http://www.123promotion.co.uk/directory/index.php