Gunicorn vs IIS

IIS is used by more websites in our catalog: 268 use Gunicorn and 14,679 use IIS.

Gunicorn sites have the higher median Ahrefs Domain Rating (Gunicorn: 44, IIS: 35).

Between 2026-06 and 2026-07, Gunicorn went from 0.04% to 0.03% of all tracked sites, while IIS went from 1.8% to 1.7%. Gunicorn is gaining ground faster in our index.

0 websites in our catalog use both Gunicorn and IIS.

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.