HTTP Header Checker
Fetch and inspect HTTP response headers for any URL.
How to use
- Enter a URL.
- Click Check.
- Review status and headers.
Frequently asked questions
- Is the HTTP Header Checker free to use?
- Yes. The HTTP Header Checker is 100% free, requires no signup or API key, and runs entirely in your browser.
- Does the HTTP Header Checker send my data to a server?
- No. All processing happens client-side in your browser — your input never leaves your device.
- How do I use the HTTP Header Checker?
- Enter a URL. Click Check. Review status and headers.
Related URL & Domain tools
- My IP AddressSee your public IP plus location, ISP and timezone instantly.
- IP Address LookupLook up any IPv4 or IPv6 address: location, ISP, ASN and timezone.
- DNS LookupQuery A, AAAA, MX, TXT, NS, CNAME and more via Google's DNS-over-HTTPS.
- WHOIS LookupLook up registration data, registrar and dates for any public domain.
- URL ParserBreak any URL into protocol, host, path, query parameters and hash.
- Domain Age CheckerFind out how old a domain is using its WHOIS creation date.
Looking for more? Browse all free SEO tools or read the latest SEO guides.