FlawPilot vs Mozilla Observatory
Mozilla’s free scanner for HTTP security mechanisms: CSP, HSTS, cookie flags, CORS, subresource integrity and redirections.
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
Mozilla Observatory
Free
Entirely free, no account
FlawPilot vs Mozilla Observatory, feature by feature
What each tool actually delivers, not a checkbox count. Read from Mozilla Observatory’s own public pages on 2026-09-07; where those pages do not settle something, it is not counted against them.
| Feature | FlawPilot4/4 | Mozilla Observatory0/4 |
|---|---|---|
| FullAll four pillars in one ranked report, no account and no card. | PartialNo TLS / SSL configuration and 4 more | |
| HTTP security headers | Yes | Yes |
| TLS / SSL configuration | Yes | No |
| Cookie security flags | Yes | Yes |
| 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. | PartialNo Embeddable status badge |
"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 Mozilla Observatory, and the case against us, alongside the case for FlawPilot.
What Mozilla Observatory does better
Free, respected, and its CSP guidance is genuinely educational - it explains why a header matters, not just that it is missing.
Where FlawPilot differs
Observatory does not check TLS configuration or DNS records. FlawPilot covers those in the same scan, plus performance, SEO and source code.
Pick Mozilla Observatory when
You want a free second opinion on headers and cookie flags.
One scan, or Mozilla Observatory plus 13 more
Mozilla Observatory fully delivers 0 of 4 features. Watch what a single pass has to check, and who checks it.
- HTTP security headersMozilla Observatory
- Cookie security flagsMozilla Observatory
- REST APIMozilla Observatory
- Live scan with no signupMozilla Observatory
- TLS / SSL configuration+ TLS grader
- 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
- …and 6 more
14 dashboards, 14 severity scales, one manual triage.
one pass1 tool1tool. FlawPilot, one scan, no card
All 4 features in a single pass - including the 13 checks Mozilla Observatory does not cover, which would otherwise mean 13 more tools to buy, learn and reconcile.
- One dashboard, not 14
- 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 Mozilla Observatory.
Compare them on your own site
Run a free FlawPilot live scan and read the ranked list yourself. No account, no card.
Mozilla Observatory details read from developer.mozilla.org/en-US/observatory on 2026-09-07. Pricing changes - if something here is out of date, tell us and we will correct it.