PyRank
certifi

certifi

(Python Distribution) A carefully curated collection of Root Certificates for validating the trustworthiness of SSL certificates while verifying the identity of TLS hosts.
PyPI GitHub Verified repo
No known security advisories. The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.

certifi has 1.7B monthly downloads and 981 GitHub stars. Version 2026.6.17 supports Python 3.7+, first published in 2011.

It is actively maintained under a copyleft license, last released in Jun 2026.

It is used by 5,035 tracked packages, including requests, httpx and httpcore.

Shared Repository
This package shares its GitHub repository (certifi/python-certifi) with 7 other packages. Stars, forks, and other GitHub metrics reflect the entire repository.
Downloads
Day
55.8M
Week
396.8M
Month
1.7B
Stars
981
Forks
290
Issues
2
Version
2026.6.17

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
90
Popularity
66
Adoption
70
Community
50
Provenance
100
How the maintenance status was determined
Last commit
8 days ago
Monthly downloads
1,718,326,132
• Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
1,718,326,132
Stars
981
Stars per 1k downloads
0.00
• Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
56,691,754
Month daily avg
57,277,538
Momentum
-1.0%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.7
Cutting Edge
Minimum supported version is 3.12 or newer
Modern
Minimum supported version is 3.9, 3.10, or 3.11
• Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
MPL-2.0
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
• Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
21 days ago
Total releases
74
Releases/year
5.1
Rapid
Last release within 365 days and > 12 releases/year
• Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
39
Monthly downloads
1,718,326,132
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
• Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
53
 
Issue Burden
2.0
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
13.4%
contrib / forks
Stale Release
No
 
PR Velocity
Quiet
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 40.7M
Windows 1.5M
macOS 374.5K

Python Versions

3.12
35.2% 13.3M
3.11
29.1% 11.0M
3.13
15.5% 5.8M
3.10
14.0% 5.3M
3.14
6.2% 2.3M

Top Countries

1. US US
31.3M
2. SG SG
1.6M
3. DE DE
1.3M
4. IN IN
1.1M
5. IE IE
1.1M
6. NL NL
784.4K
7. FR FR
661.0K
8. GB GB
573.0K
9. JP JP
461.0K
10. CA CA
376.8K

Package Information

License
MPL-2.0
First Release
December 28, 2011
Last Release
3 weeks ago
Last Commit
1 week ago
Latest Version
2026.6.17
Total Releases
74
Contributors
39
Open PRs
0
Archived
No
Author
Kenneth Reitz
Python Versions
3 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14
Wheels
py2 py3
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh

Links