# HTTP Header Analyzer

Inspect the response headers returned by any URL. Check for security headers, caching policies, and server information.

## Peek Under the Hood

Web scraping isn't just about the HTML body. The server response headers contain a wealth of strategic information. They can tell you if a site is behind a CDN (like Cloudflare), what server technology they use (Apache, Nginx, IIS), and specific rules about caching or cookies that your scraper needs to respect.

### Detect Anti-Bot & WAFs

Specific headers often reveal the presence of Web Application Firewalls (WAFs) or security services. Headers like `cf-ray`, `x-amz-cf-id`, or `server: cloudflare` give you immediate insight into the defenses you are up against, allowing you to tailor your scraping strategy accordingly (e.g., using residential proxies).

### Debug 403/5xx Errors

When your scraper gets blocked, the HTML body might just say "Forbidden". The headers, however, often contain the clue. A `Retry-After` header tells you you've hit a rate limit. A `Www-Authenticate` header implies you need credentials. Use this tool to inspect headers on problematic sites to diagnose why your requests are failing.

## Questions

### What are HTTP headers?

### Why should I analyze headers for scraping?

### What are security headers?

### Can I see my own request headers?