SEO Checker Tools
Audit, analyze, and verify your SEO with 13 free checker tools. Check content, technical setup, performance, and links — all in your browser, no signup required.
Tools that verify and audit
Every checker tool in one place. Click any tool to start checking your SEO immediately — no signup, no download.
SERP Snippet Preview
Preview how your page appears in Google search results.
Keyword Density Checker
Analyze keyword frequency and density in your content.
Core Web Vitals Checker
Check LCP, INP, and CLS against Google's 2026 ranking thresholds.
SEO Audit Tool
Run a full on-page SEO audit with 50+ checks and prioritized fixes.
AI Content Detector
Detect AI-generated content from ChatGPT, Gemini, Claude, and GPT-5.
Readability Checker
Check Flesch-Kincaid readability score and content grade level.
Headline Analyzer
Score your headlines for SEO, emotional impact, and click-through rate.
Word Counter
Count words, characters, sentences, and reading time with keyword analysis.
Page Size Checker
Check if your HTML exceeds Google's 2MB crawl limit (new in 2026).
Open Graph Checker
Validate OG tags and preview social sharing appearance.
Robots.txt Tester
Test your robots.txt file against Googlebot and AI crawlers.
Backlink Checker
Analyze the top 100 backlinks for any domain.
Competitor Analysis
Compare traffic, keywords, and backlink gaps with competitors.
What you can check
Six categories of SEO checks covering every aspect of your search engine optimization strategy.
Content Analysis
Check keyword density, content structure, and readability. Ensure your content is optimized for both search engines and users.
Technical Audits
Audit your entire website for technical SEO issues. Get prioritized recommendations with step-by-step fix instructions.
Performance Checks
Measure page load speed and Core Web Vitals. Identify bottlenecks and get actionable performance optimization insights.
Link Analysis
Check your backlink profile, analyze competitor links, and find link-building opportunities to boost your domain authority.
SERP Preview
Preview exactly how your pages appear in Google search results. Check title lengths, meta descriptions, and rich snippets.
Rank Monitoring
Track your keyword positions across search engines. Monitor ranking changes over time and spot trends before competitors.
How checker tools work
Four simple steps from selecting a tool to improving your SEO. The entire process takes seconds.
Select a Checker
Choose the checker tool that matches what you want to verify — content, technical, performance, or links.
Enter Your Data
Paste your content, enter your URL, or upload your file. All processing happens in your browser — nothing is sent to servers.
Get Instant Results
Receive a detailed analysis with metrics, issues found, and prioritized recommendations. No waiting, no loading screens.
Take Action
Follow the actionable recommendations to fix issues and improve your SEO. Re-check anytime to track your progress.
Before vs after using checkers
See the real difference our checker tools make. From guesswork to data-driven SEO decisions.
Guessing if your content has the right keyword density
Exact keyword frequency and density percentages in seconds
Not knowing if your robots.txt blocks important pages
Instant validation against Googlebot and other crawlers
Wondering why your page loads slowly
Detailed Core Web Vitals metrics with optimization tips
Blind to your backlink profile quality
Complete backlink analysis with authority and anchor text data
Unsure how your page looks in Google results
Pixel-perfect SERP preview with character count validation
Manually tracking keyword positions in spreadsheets
Automated rank tracking with daily updates and trend alerts
Why use SEO checkers
Regular SEO checks are the foundation of a healthy, high-ranking website. Here's why our tools are the right choice.
Catch Issues Early
Identify SEO problems before they impact your rankings. Regular checks keep your site healthy and search-engine friendly.
Data-Driven Decisions
Get concrete metrics and scores instead of guesswork. Make SEO decisions backed by real data from professional-grade tools.
Save Time & Money
Replace expensive SEO audit tools with free alternatives that deliver the same insights. No subscriptions, no hidden costs.
Privacy Guaranteed
All checker tools run client-side. Your URLs, content, and data never leave your browser. Perfect for confidential client work.
Pair checkers with generators
Found an issue with a checker? Fix it with a generator. These tool types work together for complete SEO workflows.
Generators
Create meta tags, schema markup, sitemaps, and more to fix issues found by checkers.
All Tools
Browse the complete collection of 18 free SEO tools across all categories.
Categories
Explore tools organized by SEO category to find exactly what you need faster.
Start checking your SEO
Run a free SEO audit, check your keyword density, test your page speed, and more. No signup, no cost, no catch.