Gathering detailed insights and metrics for mdn-data
Gathering detailed insights and metrics for mdn-data
This repository contains general data for Web technologies
Installations
npm install mdn-dataDeveloper Guide
BETA
Typescript
No
Module System
CommonJS
Node Version
22.16.0
NPM Version
10.9.2
Score
100
Supply Chain
89.8
Quality
94.8
Maintenance
100
Vulnerability
100
License
Releases
48
Languages
1
JavaScript
JavaScript (100%)
Developer
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
CC0-1.0 License
748 Stars
1,316 Commits
197 Forks
23 Watchers
2 Branches
139 Contributors
Updated on Jul 08, 2025
Maintainers
7
Package Meta Information
Latest Version
2.22.1
Package Id
mdn-data@2.22.1
Unpacked Size
676.25 kB
Size
95.45 kB
File Count
25
NPM Version
10.9.2
Node Version
22.16.0
Published on
Jul 02, 2025
Total Downloads
Cumulative downloads
Total Downloads
NaN
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dev Dependencies
2
Welcome to MDN data
Note We are in the process of deprecating the
mdn/datapackage in favor ofw3c/webref. If you depend on this project, let us know in our community GitHub discussions. Thank you.
This repository contains general data for Web technologies and is maintained by the MDN team at Mozilla.
Repository contents
The data in this repository is used in MDN Web Docs to build information boxes and sidebar navigation. External tools make use of this data as well, for example, the CSSTree CSS parser.
There's a top-level directory for each broad area covered: for example, api and css.
Inside each of these directories is one or more JSON files containing the data.
api
Contains data about Web APIs:
- API inheritance (interface inheritance and mixin implementations)
css
Contains data about:
- CSS at-rules
- CSS functions
- CSS properties
- CSS selectors
- CSS syntaxes
- CSS types
- CSS units
For more information, see the CSS data documentation and the Updating CSS JSON DB guide.
l10n
The l10n folder contains localization strings that are used in the various json files throughout this repository.
Problems?
If you find a problem, please file an issue.
Contributing
We're very happy to accept contributions to this data. Please familiarize yourself with the schema for the data you're editing, and send us a pull request. See the CONTRIBUTING.md document for more information.
See also
- https://github.com/mdn/browser-compat-data for compatibility data for Web technologies
No vulnerabilities found.
Reason
no dangerous workflow patterns detected
Reason
all changesets reviewed
Reason
no binaries found in the repo
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: Creative Commons Zero v1.0 Universal: LICENSE:0
Reason
0 existing vulnerabilities detected
Reason
9 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 7
Reason
dependency not pinned by hash detected -- score normalized to 4
Details
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/idle.yml:11: update your workflow using https://app.stepsecurity.io/secureworkflow/mdn/data/idle.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/lint.yml:11: update your workflow using https://app.stepsecurity.io/secureworkflow/mdn/data/lint.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/lint.yml:12: update your workflow using https://app.stepsecurity.io/secureworkflow/mdn/data/lint.yml/main?enable=pin
- Warn: third-party GitHubAction not pinned by hash: .github/workflows/publish-release.yml:25: update your workflow using https://app.stepsecurity.io/secureworkflow/mdn/data/publish-release.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/publish-release.yml:30: update your workflow using https://app.stepsecurity.io/secureworkflow/mdn/data/publish-release.yml/main?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/publish-release.yml:34: update your workflow using https://app.stepsecurity.io/secureworkflow/mdn/data/publish-release.yml/main?enable=pin
- Info: 0 out of 4 GitHub-owned GitHubAction dependencies pinned
- Info: 0 out of 2 third-party GitHubAction dependencies pinned
- Info: 2 out of 2 npmCommand dependencies pinned
Reason
SAST tool is not run on all commits -- score normalized to 2
Details
- Warn: 6 commits out of 30 are checked with a SAST tool
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: no topLevel permission defined: .github/workflows/idle.yml:1
- Warn: no topLevel permission defined: .github/workflows/lint.yml:1
- Warn: topLevel 'contents' permission set to 'write': .github/workflows/publish-release.yml:15
- Info: no jobLevel write permissions found
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Score
6
/10
Last Scanned on 2025-07-07
The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.
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