mozilla/http-observatory
Mozilla HTTP Observatory observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases archived
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3864
- days_rel: n/a
- days_push: 680
- n_releases_24m: 0
Adoption not part of the score
1850 stars · 164 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Mozilla HTTP Observatory is a Python-based scanner and grader that analyzes websites' HTTP headers and security configurations, providing actionable feedback on security best practices. This repository is deprecated in favor of the MDN-maintained Node.js replacement (mdn/mdn-http-observatory).
Use cases
- scan my website for http header security issues
- grade my site's security headers
- check if my site uses CSP, HSTS and other security headers
- run a security header scan in CI
- self-host a website security scanner
- audit http security configuration of a domain
When to choose
- you need the original Python implementation for legacy integrations
- you want to self-host the classic Observatory scanner/grader
When to avoid
- starting a new project - use the MDN mdn-http-observatory replacement instead
- you need updated scoring or bug fixes
- you want official support
Facets
service · maturity abandoned
security vulnerability-scanning http-server monitoring security web-development developer-tools python self-hosted cli http-headers website-security-scanner deprecated observatory security-grading ci-integration web-server
10 sources
- readme: https://github.com/mozilla/http-observatory · fetched 2026-08-28 · abd21ba7ef24
- homepage: https://observatory.mozilla.org/ · fetched 2026-08-29 · bc2bb7e4aed6
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML · fetched 2026-08-29 · 66bf4a25f44a
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements · fetched 2026-08-29 · a6c21ef2f053
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes · fetched 2026-08-29 · e2025dfddb5b
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes · fetched 2026-08-29 · dc19bdcf5efd
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference · fetched 2026-08-29 · e154bd54ce2b
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images · fetched 2026-08-29 · 8807d18c08e4
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet · fetched 2026-08-29 · 797cb95cf18e
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats · fetched 2026-08-29 · f9a25082e203
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| mozilla/http-observatory | main | 10 |
For agents
markdown · JSON · MCP: product_card(name="mozilla/http-observatory")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem