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Download data sourced from BigQuery (Google). Counts may include CI/CD and mirror traffic.
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certifi

Python package for providing Mozilla's CA Bundle.

v2026.2.25by Kenneth ReitzMPL-2.0
1.1B
downloads (30d)
Project Homepage
AI Health Summary — Claude-generated analysis of download trends, maintenance, and risk signals.
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No known vulnerabilities in the latest version

Based on latest version 2026.2.25. If you're running an older version, check OSV for your specific version.

Exclude CI/CDPRO
Best Day
64.0M
May 20
Worst Day
36.1M
May 3
Peaks On
Weds
61.5M avg
Quietest
Suns
39.3M avg

Download Trend

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[![PyPI Stats](/api/badges/certifi?period=month)](/packages/certifi)
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<a href="/packages/certifi"><img src="/api/badges/certifi?period=month" alt="PyPI Stats"></a>

Package Info

Latest Version
2026.2.25
Author
Kenneth Reitz
License
MPL-2.0
First Release
2011-12-28
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