Alternatives

AcuityScan vs securityheaders.com

securityheaders.com gives a fast, free grade on your response headers. AcuityScan reads those headers as one part of a full eight-category audit.

securityheaders.com, by Scott Helme, is a clean, free tool that grades a site's HTTP security headers (CSP, HSTS, X-Frame-Options and friends) from A to F. It does that one job well and is widely trusted. AcuityScan evaluates the same headers inside its threat-intelligence module, then scores them next to TLS, email, DNS, performance, SEO, accessibility, and privacy.

AcuityScan vs securityheaders.com, side by side

HTTP security header grading.

	AcuityScan	securityheaders.com
Primary focus	Full website audit	HTTP security headers
Categories covered	8	Security headers
Security header grade	Yes	Yes (A-F, detailed)
SSL/TLS cipher analysis	Yes	No
Email auth + DNS + blacklists	Yes	No
Performance + SEO	Yes	No
Accessibility (WCAG)	Yes (axe-core)	No
Unified 0-100 health score	Yes	Letter grade (headers)
Monitoring & alerts	Included in Pro	No
Starting paid tier	$29/mo	Free
Plain-English fix for every issue	Yes	No
Native Claude / MCP integration	Yes	No

Comparison based on securityheaders.com's publicly listed features and pricing as of 2026. Competitor capabilities change, so if anything here is outdated, let us know.

Where AcuityScan goes further

Headers scored alongside seven other categories instead of in isolation.
Full TLS analysis, email authentication, and blacklist checks securityheaders.com does not run.
Monitoring that re-checks your headers and warns you if they regress.
A plain-English fix and shareable report for every finding, not only headers.

When securityheaders.com is the better choice

We would rather you pick the right tool than the wrong one. securityheaders.com is the better fit when:

You want a fast, free, single-purpose grade on just your response headers.
You are iterating on a Content-Security-Policy and want the most header-specific feedback.
Headers are the only thing you are checking and a letter grade is enough.

Questions

Does AcuityScan grade security headers like securityheaders.com?

Yes. AcuityScan checks CSP, HSTS (including preload), X-Frame-Options, Referrer-Policy, Permissions-Policy, and the rest, with the same kind of feedback, as part of its threat-intelligence module.

Is the AcuityScan header check free?

Yes. The HTTP headers tool and the full scan run without an account. Paid tiers add monitoring, history, and white-label reports.

Why look beyond headers?

Good headers don't help if your email is unauthenticated, your TLS is weak, or your site is inaccessible. AcuityScan scores headers next to those so you see the whole security picture.

See your own score.

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Or compare your site against a competitor head to head

securityheaders.com is a trademark of its respective owner. AcuityScan is independent and is not affiliated with or endorsed by securityheaders.com. This comparison reflects publicly available information as of 2026 and may change, verify current features and pricing on each provider's own site.