Top 50 Online Best SEO Tools for Your Websites

Best Online SEO Tools

Backlink Investigation

Open Site Explorer - http://www.opensiteexplorer.org/

Majestic SEO Site Explorer - http://www.majesticseo.com/

Ahrefs Site Explorer - http://ahrefs.com/

Link Diagnosis - http://www.linkdiagnosis.com/

Server Investigation

BuiltWith - http://builtwith.com/

Pingdom Full Page Test - http://tools.pingdom.com/fpt/

Google PageSpeed - https://developers.google.com/sp...

URI Valet - http://urivalet.com/

SpyOnWeb - http://www.spyonweb.com/

Website Crawling & Link Checking

Screaming Frog SEO Spider Tool - http://www.screamingfrog.co.uk/s...

Xenu's Link Sleuth - http://home.snafu.de/tilman/xenu...

W3C Link Checker - http://validator.w3.org/checklink

Content & Markup Analysis

SEO Browser - http://www.seo-browser.com/

Copyscape - http://www.copyscape.com/

W3C Markup Validation Service - http://validator.w3.org/

Keyword Research

Google Adwords Keyword Tool - https://adwords.google.com/selec...

Wordtracker - https://freekeywords.wordtracker...

Ubersuggest - http://ubersuggest.org/

Latent Dirichlet Allocation Content http://www.virante.com/seo-tools...

Competitive Keyword Analysis

SpyFu - http://www.spyfu.com/

SEMRush - http://www.semrush.com/

Social Discovery

Shared Count - http://sharedcount.com/

SocialMention - http://socialmention.com/

Follower Wonk - http://followerwonk.com/

PR & Outreach

HARO - http://www.helpareporter.com/

Blogger LinkUp - http://www.bloggerlinkup.com/

MyBlogGuest - http://myblogguest.com/

DoubleClick Ad Planner - https://www.google.com/adplanner/

Analytics

Google Analytics - http://www.google.com/analytics/

Search Engine Guidance

Google Webmaster Tools - https://www.google.com/webmasters/

Bing Webmaster Tools - http://www.bing.com/toolbox/webm...

blekko - https://blekko.com/

SEO Analysis

WooRank - http://www.woorank.com/

Free SEO Analysis by Web Gnomes - http://www.webgnomes.org/free-se...

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