Contributor concentration (all-time)
Contribution: 100.0 / 100
Top contributor authored 94.9% of all-time commits (distinct contributors: 142).
core-js
NPM · mapping confidence high (70 pts)
Risk 6.7
Importance 51.4
Fragility 13.0
Confidence medium
Fragility evidence
OpenSSF Scorecard
Contribution: 50.0 / 100
OpenSSF Scorecard aggregate score: 5 / 10.
Commit recency
Contribution: 0.0 / 100
1 days since last commit on default branch.
Release cadence decay
Contribution: 0.0 / 100
10 releases in the last 365 days vs 6 in the prior 365 days.
Release recency
Contribution: 0.0 / 100
35 days since latest release.
Issue responsiveness
Contribution: 0.0 / 100
Median first maintainer response: 0 days on 12 issues.
Contributor concentration (last 365d)
Contribution: 0.0 / 100
Recent commit concentration unavailable for the last 365 days.
Repository mapping
- Repository
- https://github.com/zloirock/core-js
- Registry
- https://www.npmjs.com/package/core-js
- Confidence points
- 70 pts (high)
- Rationale
-
- registry_repo_url_resolves(+40)
- deps_dev_source_repo_match(+20)
- openssf_scorecard_present(+10)
Timeline
- First release
- 2013-07-18
- Latest release
- 2026-03-16
- Last commit
- 2026-04-19
- Archived
- No
- Deprecated
- No