HSTS Checker

0 out of 0 stars

HTTP Strict Transport Security (HSTS) is a security header that forces browsers to always connect via HTTPS, preventing protocol downgrade attacks and cookie hijacking. This tool checks if the site sends the Strict‑Transport‑Security header and validates its syntax, including the max‑age directive. Enabling HSTS is a best practice for any site using HTTPS. Use this check to confirm your configuration or to audit third‑party sites.

Share

Similar Tools

SSL Checker

Get detailed information about an SSL certificate, including issuer, validity period, and common name.

283

0

HTTP Headers Lookup

Retrieve all HTTP headers returned by a URL on a GET request.

273

0

HTTP/2 Checker

Find out if a website supports the HTTP/2 protocol.

259

0

Popular Tools

Find approximate geographical location and network data for any IP address.

328

9

Reverse IP Lookup

Find domains hosted on the same IP address.

313

3

Deprecated HTML Tags Checker

Detect obsolete HTML tags that should be replaced with modern alternatives.

284

0

SSL Checker

Get detailed information about an SSL certificate, including issuer, validity period, and common name.

283

0

WHOIS Lookup

Retrieve domain registration details: registrar, creation date, and expiration date.

279

1

HTTP Headers Lookup

Retrieve all HTTP headers returned by a URL on a GET request.

273

0