FlawPilot vs SecurityHeaders
A free tool that grades a site’s HTTP response headers and nothing else.
FlawPilot
Free
to start, no card
- Four pillars on the live scan, plus source code from a connected repo
- Live scan needs no credentials or agent
- Engineers available to do the fixes
SecurityHeaders
Free
Free web scan, no account
The web scanner is free with no account. They have also run a paid API alongside it; reports that it has since been retired come only from vendors selling replacements, so its current status is not settled here. The site is now owned by Probely, which Snyk acquired.
FlawPilot vs SecurityHeaders, feature by feature
What each tool actually delivers, not a checkbox count. Read from SecurityHeaders’s own public pages on 2026-09-07; where those pages do not settle something, it is not counted against them.
| Feature | FlawPilot4/4 | SecurityHeaders0/4 |
|---|---|---|
| FullAll four pillars in one ranked report, no account and no card. | PartialNo TLS / SSL configuration and 5 more | |
| HTTP security headers | Yes | Yes |
| TLS / SSL configuration | Yes | No |
| Cookie security flags | Yes | No |
| DNS records | Yes | No |
| Email auth (SPF/DKIM/DMARC) | Yes | No |
| Performance | Yes | No |
| SEO | Yes | No |
| FullThree engines scored separately - insecure code, secrets across full git history, and CVEs with an SBOM. | None | |
| Source-code scanning | Yes | No |
| Hardcoded secrets | Yes | No |
| Dependency CVEs | Yes | No |
| FullNative MCP servers for both Claude and ChatGPT. | None | |
| MCP server (Claude, ChatGPT) | Yes | No |
| FullDocumented REST API, plus an embeddable status badge. | None |
"Partial" means real but narrower coverage, and does not count toward the score - the cell says what is missing. Open a feature to see the individual checks behind it.
Where each tool wins
A comparison page where the competitor never wins reads as an advert. Here is the case for SecurityHeaders, and the case against us, alongside the case for FlawPilot.
What SecurityHeaders does better
For a header grade in two seconds with no signup, it is still the fastest thing on the internet, and the grade is well understood by everyone who has used it.
Where FlawPilot differs
Headers are one category of a FlawPilot scan. An A+ header grade sits alongside TLS, cookies, DNS, email authentication, performance, SEO and source code in the same ranked report.
Pick SecurityHeaders when
You want a header grade for a site you do not own, right now, and nothing else.
One scan, or SecurityHeaders plus 15 more
SecurityHeaders fully delivers 0 of 4 features. Watch what a single pass has to check, and who checks it.
- HTTP security headersSecurityHeaders
- Live scan with no signupSecurityHeaders
- TLS / SSL configuration+ TLS grader
- Cookie security flags+ cookie auditor
- DNS records+ DNS lookup tool
- Email auth (SPF/DKIM/DMARC)+ SPF/DMARC checker
- Performance+ Lighthouse
- SEO+ SEO crawler
- Source-code scanning+ SAST tool
- Hardcoded secrets+ secrets scanner
- Dependency CVEs+ dependency scanner
- …and 6 more
16 dashboards, 16 severity scales, one manual triage.
one pass1 tool1tool. FlawPilot, one scan, no card
All 4 features in a single pass - including the 15 checks SecurityHeaders does not cover, which would otherwise mean 15 more tools to buy, learn and reconcile.
- One dashboard, not 16
- One severity scale, so findings rank against each other
- One ranked list, already triaged
Free to start, no card.
Common questions
What people ask before running a scan against SecurityHeaders.
Compare them on your own site
Run a free FlawPilot live scan and read the ranked list yourself. No account, no card.
SecurityHeaders details read from securityheaders.com on 2026-09-07. Pricing changes - if something here is out of date, tell us and we will correct it.