# httpwg/http2-spec

Working copy of the HTTP/2 Specification

Repository: https://github.com/httpwg/http2-spec
Canonical: https://ross.abutalabs.com/products/http2-spec
Homepage: https://httpwg.org/
Language: Makefile
License Family: other
Topics: http2, ietf
Last push: 2024-09-08T01:37:26+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4956, "days_push": 725, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3750, forks 558 (observed 2026-08-28T04:08:17.664359+00:00)

## What it is
The working copy of the IETF HTTP/2 specification (the revision of RFC 7540, published as RFC 9113), maintained by the IETF HTTP Working Group. It is a standards document source repository, not software, rendered into HTML/text drafts at httpwg.org.

## Use cases
- read the authoritative HTTP/2 protocol specification
- check how HTTP/2 framing, streams, and flow control are defined
- contribute feedback or errata to the HTTP/2bis draft
- verify protocol behavior when implementing an HTTP/2 client or server
- reference HPACK header compression rules

## When to choose
- you need the normative definition of HTTP/2 for implementing or testing a protocol stack
- you want to follow or participate in IETF standardization of HTTP/2
- you need a citable reference for HTTP/2 semantics

## When to avoid
- you need an HTTP/2 library, client, or server implementation rather than a document
- you want tutorials or beginner-friendly explanations of HTTP/2
- you need runnable code or test suites

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, developer-tools
- domain: networking, web-development, documentation, apis
- platform: cross-platform
- tags: http2, ietf, rfc, specification, standards, httpbis, protocol-spec, web-server

## Member repositories
- httpwg/http2-spec (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:17.664359+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:29:00.503713+00:00, confidence not recorded.
  - readme: https://github.com/httpwg/http2-spec (fetched 2026-08-28T04:08:17.664359+00:00, sha 5a512082679d)
  - homepage: https://httpwg.org/ (fetched 2026-08-29T09:23:08.206074+00:00, sha 33615a27df0e)
  - site_page: https://httpwg.org/about (fetched 2026-08-29T09:23:08.221390+00:00, sha b1bdbcbe036c)
  - site_page: https://httpwg.org/specs (fetched 2026-08-29T09:23:08.208770+00:00, sha f33ddc8fcf2c)
- Data as of 2026-08-30T08:39:29.467469+00:00.