HTTP Header Checker
Inspect every response header. Security headers highlighted.
Video Guide: How to Use HTTP Headers Checker
Watch our quick 2-minute video tutorial on how to get the most out of this tool for your website optimization.
What Does HTTP Headers Checker Check?
HTTP Headers Checker is a free SEO tool from SEOAcademys that performs real-time analysis on any live URL. It evaluates 0+ signals using the same methodology trusted by 2.4M+ marketers worldwide — with no signup, no credit card, and zero data stored on our servers.
How The Engine Works
Our serverless architecture fetches real-time data without caching, ensuring you see exactly what Googlebot sees right now.
How to Use HTTP Headers Checker
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Step 1: Enter Your URL
Paste any public URL into the field above. HTTP Headers Checker accepts both
http://andhttps://and auto-resolves redirects. - 2
Step 2: Run the Analysis
Click Analyze. Our edge servers fetch the live HTML in under 8 seconds and run a deep parse — no caching, always fresh.
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Step 3: Fix the Issues
Review the prioritized fix list, copy the recommended snippets, and re-run HTTP Headers Checker after deploying to confirm the score change.
What HTTP Headers Checker Checks — Full List
HTTP Headers Checker vs SecurityHeaders.com: Why Free Wins
Paid SEO suites cost $99–$449/month. HTTP Headers Checker runs the same on-page checks in real time, completely free.
| Feature | SEOAcademys | SecurityHeaders.com | Ahrefs |
|---|---|---|---|
| Price | Free forever | $139.95/mo | $129/mo |
| Signup required | No | Yes | Yes |
| Live URL fetching | Yes | Yes | Yes |
| AI crawler signals (GPTBot, ClaudeBot) | Yes | No | Partial |
| Daily limit | Unlimited | 100 reports | 500 credits |
| Data stored | Nothing | Indefinitely | Indefinitely |
| Export CSV / JSON | Yes | Yes (paid tier) | Yes (paid tier) |
Common Response Header Analyzer Issues Found
Stale or cached data
Most teams audit using cached snapshots. HTTP Headers Checker fetches the live HTML on every run, so you catch issues the day they ship.
Generic recommendations
Off-the-shelf checklists ignore your stack. HTTP Headers Checker surfaces issues based on what's actually in your page source.
Missing AI-crawler signals
Most legacy tools don't audit GPTBot, ClaudeBot or PerplexityBot. We do — that's how you stay visible in AI answers.
Slow turnaround
Enterprise crawls take 6–24 hours. HTTP Headers Checker returns full results in under 8 seconds, every time.