Ahrefs vs Duolingo

Ahrefs (BTW we use OCaml) and Duolingo both appear on the Smoower Developer Ecosystem Index.

Duolingo (rank #338) holds a narrow lead over Ahrefs (rank #401) on the overall Smoower ecosystem score (43 vs 41). The gap of 2 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Duolingo is slightly ahead of Ahrefs. On education (docs, guides and learning material for developers), Ahrefs is ahead of Duolingo. On reach (how visible the ecosystem is beyond its own repos), Duolingo is clearly ahead of Ahrefs. On momentum (release cadence and how fast the ecosystem moves), Ahrefs is clearly ahead of Duolingo.

Ahrefs carries 1,303 GitHub stars across 171 public repos, with 28 repositories active in the last 90 days and 7 external contributors on record. Duolingo shows 1,721 stars across 12 public repos, 8 active in the last 90 days and 11 external contributors.

Ahrefs is the stronger read for anyone weighting momentum. Duolingo looks better where reach is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.