Free Network Tool

Check Domain Security Headers

Check a website’s HTTP response headers, including security-related headers.

Examples
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About Check Domain Security Headers

Check a website’s HTTP response headers, including security-related headers.

Check a website’s HTTP response headers, including security-related headers.

Related privacy and security resources
When relevant, this section may include related privacy and security resources that fit the topic of the page.
Privacy and security resources

Privacy and browsing protection resources

These resources may be useful for visitors who want more private browsing, encrypted traffic, and safer connections on public or untrusted networks, especially when they are already researching infrastructure, domain setup, or general internet safety.

Disclosure: Some links in this section may earn a commission if a qualifying signup or purchase is completed.

Related option
NordVPN

A practical option for visitors who want encrypted browsing, safer public Wi-Fi use, and a familiar cross-device experience.

  • Encrypted browsing
  • Useful on public Wi-Fi
  • Helpful for privacy-minded users
View NordVPN Offer
Related option
Surfshark

A useful option for visitors who want encrypted browsing with flexible device support and a straightforward setup experience.

  • Encrypted browsing
  • Privacy-focused connection option
  • Works well for everyday users
View Surfshark Offer

Check Domain Security Headers FAQ

What are domain security headers?

Security headers are HTTP response headers that help define browser security behavior, such as content restrictions and transport rules.

Why check security headers?

It is useful during audits, migrations, web hardening, and troubleshooting web security posture.