
Mozilla Observatory
Hardenize
Qualys SSL Server Test
Snyk
HTTP Observatory
Sucuri Security Scanner
Detectify
Quickly and easily assess the security of your HTTP response headers.

Nessus
Qualys
Tenable.io
Dawnsentry
Recorded Future
MyCVEFilter
Pulsedive
Unify attack surface management, vulnerability triage, and brand protection. Instead of a 12,000-CVE backlog ranked by CVSS, you get a daily queue of the 3–15 vulnerabilities being actively exploited against organisations.

Which is more popular?
Based on our record, Security Headers seems to be more popular. It has been mentioned 70 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | securityheaders.com | precursorintelligence.com |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Security Headers yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
HTTP Security Headers | Part 01
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Security Headers and Precursor Intelligence.
Precursor Intelligence's answer:
Precursor intelligence doesn't just tell you what vulnerabilities you have, it maps them to real threat intelligence to tell you which vulnerabilities you have that attackers are using today.
Precursor Intelligence's answer:
Most scanners generate noise, Precursor Intelligence tells you exactly which of your vulnerabilities are being used by real attackers so you cn focus on what matters.
Share your experience with using Security Headers and Precursor Intelligence. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Precursor Intelligence yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Since we were back in the security settings anyway, Claude and I went through the whole guide: added headers, set up CSP with no inline scripts, no-store. The securityheaders.com score went from F to A+. - Source: dev.to / 27 days ago
Check: Go to securityheaders.com and enter your URL. A grade below B means you're missing important ones. - Source: dev.to / 5 months ago
The curl above is the fastest check; all four lines should come back. In a browser, DevTools, Network tab, click the document request, read Response Headers. For a letter grade, securityheaders.com scores you against a known rubric. One... - Source: dev.to / 6 months ago
Tracking Precursor Intelligence since Jun 2026.
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