Search Engine Marketing Toolkit | List of Free Useful Search Engine Optimization Tools

Keyword Research Tools

Free Service

Google AdWords Keyword Planner: Requires a free AdWords account

Google Webmaster Tools: The most accurate tool for website owners to identify keywords driving visitors.★★★★

TagCrowd: Use this free keyword tag cloud tool on a page of content to see the prominent keywords.★★★★

Synonym Finder: Find related phrases for keyword research.

Google Trends: Identify related phrases and their search volume.

Merge Words: Great for creating lists of long-tail keywords.

Paid Service

SEMRush: A competitor research tool for keywords and rankings.

Wordtracker’s database of 3.5 billion searches per month, is completely independent of Google’s data.

MOZ Keyword Difficulty Tool is part of an excellent Pro tool suite.

Raven Tools: Keyword data plus a full suite of tools.

KeywordSpy: Great for discovering competitive keyword analysis.


A/B Testing and Conversion Rate Optimization Tools (CRO)

Free Service

All but Google Optimize have fees but many have free trials.

Google Optimize: Optimize is free and integrates with Google Analytics.

Paid Service

CrazyEgg: great for helping clients visualize user engagement.★★★★

Optimizely: A/B testing and Conversion Rate Optimization

Visual Website Optimizer allows you to run A/B tests with a simple online editor that lets you test content without knowing code.


Website Management Tools

Free Service

Robots.txt Checker: This robots.txt checker is a “validator” that analyzes the syntax of a robots.txt file to see if its format is valid as established by Robot Exclusion Standard or if it contains errors.

Wayback Machine: Historical view of web pages

HTML Validation validator.w3.org

Paid Service

SEO Browser – quick glance at a web page’s important SEO structure.

Screaming Frog SEO Spider: A tool we use all the time to review data search crawlers see on a website.


Social Monitoring Tools

Free Service

LikeAlyzer: Analyze and monitor your Facebook page.

SteadyDemand: Google+ Page Audit Tool

Paid Service

SocialBro: Provides Twitter data


Copyright Violations

Free Service

copyscape.com: finds web pages containing your content.