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...