The Ultimate Free SEO Audit
An SEO audit helps you identify issues hurting your search rankings. Here's a comprehensive checklist with a free tool for every check.
1. Meta Tags & On-Page SEO
| Check | Free Tool |
|---|---|
| Title tag length & quality | Title & Description Checker |
| Meta description optimization | Meta Tag Validator |
| Open Graph / Twitter Cards | Open Graph Preview |
| SERP appearance preview | SERP Preview Generator |
| Heading structure (H1-H6) | Heading Structure Analyzer |
2. Technical SEO
| Check | Free Tool |
|---|---|
| SSL certificate validity | SSL Certificate Checker |
| Robots.txt configuration | Robots.txt Analyzer |
| Sitemap validation | Sitemap Health Checker |
| Canonical tag conflicts | Canonical Conflict Detector |
| Hreflang tags (international) | Hreflang Tag Validator |
| Redirect chains | Redirect Checker |
3. Content Quality
| Check | Free Tool |
|---|---|
| Keyword density | Keyword Density Analyzer |
| Readability scores | Readability Score Calculator |
| Word count | Word Counter |
| Broken images | Broken Image Finder |
| Broken links | Broken Link Checker |
| Spelling errors | Spelling & Grammar Checker |
4. Performance
| Check | Free Tool |
|---|---|
| Page speed metrics | Page Speed Analyzer |
| Core Web Vitals estimate | Core Web Vitals Estimator |
| Resource analysis | Page Resource Analyzer |
| Mobile friendliness | Mobile Friendliness Checker |
5. Security
| Check | Free Tool |
|---|---|
| Security headers grade | HTTP Security Headers Grader |
| Mixed content issues | Mixed Content Checker |
| Cookie compliance | Cookie Compliance Checker |
| DMARC / SPF / DKIM | DMARC Checker |
6. Structured Data
| Check | Free Tool |
|---|---|
| JSON-LD validation | Structured Data Validator |
| Schema extraction | JSON-LD Extractor |
7. Competitive Analysis
| Check | Free Tool |
|---|---|
| Technology stack | Technology Detector |
| CMS & version | CMS Version Detector |
| Competitor comparison | Website Comparison |
How to Run a Full Audit
Start with the SEO Analyzer for a comprehensive overview, then drill into specific areas using the tools above.
All 170+ tools are free with no signup required on Krawly.io.