[FREE] 35 of the best SEO tools to use!

• What it does: Crawls a URL and diagnoses a number of technical issues
• Tool type: Desktop app
• Link: http://www.screamingfrog.co.uk/seo-spider/

• What it does: Helps with almost everything you need as an SEO
• Tool type: Website
• Link: rel="nofollow" https://www.google.com/webmasters/tools/home?hl=en

• What it does: An entire suite of valuable free SEO tools
• Tool type: Website
• Link: http://seositecheckup.com/tools

• What it does: Checks referral traffic, organic traffic, etc
• Tool type: Website
• Link: http://www.google.com/analytics

• What it does: Checks canonicalization of a web page
• Tool type: Browser plug-in
• Link: http://www.seomoz.org/seo-toolbar

• What it does: Checks citation flow, trust flow, backlink analyzer
• Tool type: Browser plug-in
• Link: http://www.seomoz.org/seo-toolbar

• What it does: Checks for local citation duplicates
• Tool type: Website
• Link: http://www.yext.com/

• What it does: Bulk HTTP response code test, includes which URL they are redirected to
• Tool type: Website
• Link: http://www.tomanthony.co.uk/tools/bulk-http-header-compare

• What it does: The best tracker of Google's algorithm updates + explanations
• Tool type: Blog post
• Link: http://www.seomoz.org/google-algorithm-change

• What it does: Checks the international SERPS
• Tool type: Website
• Link: http://searchlatte.com/

• What it does: Checks IP redirects to help solve duplicate content problems
• Tool type: Website
• Link: http://10. SEO Site CheckupWhat it does: Checks IP redirects to help solve duplicate content problems Tool type: Website (SAAS software) Link: http://www.seositecheckup.com

• What it does: Checks keyword density and other on page factors
• Tool type: Browser Plug-In
• Link: http://www.seomoz.org/seo-toolbar

• What it does: Checks backlinks of a website
• Tool type: Website
• Link: http://openlinkprofiler.org/

• What it does: Checks meta description, title tag and keywords of a page
• Tool type: Website
• Link: http://tools.buzzstream.com/meta-tag-extractor

• What it does: Checks a website page from a search engine's point of view
• Tool type: Website
• Link: http://www.seo-browser.com/

• What it does: Checks to see the technical issues holding page optimal page load times
• Tool type: Website
• Link: https://developers.google.com/speed/pagespeed

• What it does: Helps to optimize SERP CTR by showing you page title, metas, etc
• Tool type: Website
• Link: http://www.seomofo.com/snippet-optimizer.html

• What it does: Checks multiple sites for keyword rankings
• Tool type: Chrome Browser Extension
• Link: https://chrome.google.com/webstore/detail/ofoaoaloeipdofknnaapbmdddddioklg

• What it does: Tests URLs to tell if they're showing rich snippets in SERPs
• Tool type: Website
• Link: http://www.google.com/webmasters/tools/richsnippets

• What it does: Tests Robots.txt file
• Tool type: Website
• Link: http://tool.motoricerca.info/robots-checker.phtml

• What it does: Views any webpage without distractions caused by styles, highlights parts of a page that are relevant for SEO
• Tool type: Website
• Link: http://www.browseo.net/

• What it does: Checks search engine fluctuations over time period
• Tool type: Website
• Link: http://api.serpmetrics.com/flux

• What it does: Checks your website's market share in the SERPs
• Tool type: Website
• Link: http://gs.statcounter.com/#search_engine-US-monthly-201107-201207

• What it does: Tracks rankings of multiple keywords from a browser plug-in
• Tool type: Browser Plug-In
• Link: http://tools.seobook.com/firefox/rank-checker

• What it does: Detects whether a website uses "cloaking"
• Tool type: Website
• Link: http://www.seotools.com/seo-cloaking-checker

• What it does: Checks the top 100 SERP results for the keywords you input
• Tool type: Website
• Link: http://ontolo.com/seo-serp-dominator

• What it does: Helps you create data markup for pages on your site (local business, reviews, etc)
• Tool type: Website
• Link: https://www.google.com/webmasters/markup-helper

• What it does: Helps you create schema markup for your website
• Tool type: Website
• Link: http://schema-creator.org/

• What it does: Helps you create a video sitemap for your website
• Tool type: Google doc
• Link: https://docs.google.com/spreadsheet/ccc?key=0AhK1-u_-nIZhdE5KdEFTYVJCN3M4Yk9Xb2pfY0hrQkE#gid=0

• What it does: Helps you geberate a KML file to be used in multiple location SEO
• Tool type: Website
• Link: http://www.geositemapgenerator.com/

• What it does: Checks which links on a page are follow vs no follow
• Tool type: Browser Plug-In
• Link: https://chrome.google.com/webstore/detail/nofollow/dfogidghaigoomjdeacndafapdijmiid?hl=en

• What it does: Pings URL to search engines to notify them to index the page
• Tool type: Website
• Link: http://pingomatic.com/

• What it does: Aids in a number of local search tasks like citation and listing checks
• Tool type: Website
• Link: https://moz.com/local

• What it does: Checks the validity of your site's XML sitemap
• Tool type: Website
• Link: http://www.xml-sitemaps.com/validate-xml-sitemap.html

• What it does: Checks the real time analytics of a website
• Tool type: Website
• Link: http://codex.getstat.com/

Thanks to Ryan Stewart for helping compile the list, any more you'd like to add just leave in the comments - hope it helps ​

ginza said:

Thanks for the useful list.
Btw have you considered to put chkme to the list?

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Hawkster said:

Never seen 18. SEO SERP - Position Tracker (Multiple Sites) before, handy tool for sure

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elfgirl said:

Very nice list of actually useful sites. I have heard and used a lot of these but then again, there are a few new names I see.

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