Network & web
HTTP Headers Checker
Inspect response headers for public HTTP and HTTPS URLs without following redirects.
Uses a small server-side check
Only public HTTP/HTTPS URLs on ports 80 and 443 are allowed. Redirects are reported but not followed.
How to use this tool
Paste or type your input into the tool panel. Results update immediately where possible. For privacy-first tools, your input is processed locally in the browser and is not stored for analytics.
FAQ
Is this tool free?
Yes. Lumio Utils starts with free browser-based tools and does not require registration.
Do you store my input?
No tool inputs, file contents, passwords, or private generated outputs are stored for analytics.