W3C Validator Errors
Checking the web page HTML validity using the validator.w3.org validation api
As of May 2026, W3C Validator Errors has 26 users in the Developer Tools category.
Usersup 8.3 percent+8.3%
26
26
Ratingno change0%
—
— reviews
Reviewsno change0%
—
Version
1.0
Manifest V3
History
5 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 24 | — | — | 1.0 |
| Apr 21, 2026 | 25 | — | — | 1.0 |
| May 6, 2026 | 34 | — | — | 1.0 |
| May 17, 2026 | 29 | — | — | 1.0 |
| May 31, 2026 | 28 | — | — | 1.0 |
| Now | 26 | — | — | 1.0 |
Permissions & access
- Permissions
- scriptingactiveTab
- Host access
- https://validator.w3.org/*
Screenshots
About
Checking the web page HTML validity using the validator.w3.org validation api, Html validity is essential for web accessibility.
Technical
- Version
- 1.0
- Manifest
- V3
- Size
- 18.4KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- ckhaiajkibbcblhelfjkopeihmaiobhp
- Developer ID
- ua7cf533d6c0311a2d8b665719fd339e7
- Developer Email
- [email protected]
- Created
- May 21, 2025
- Last Updated (Store)
- May 21, 2025
- Last Scraped
- May 31, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified May 31, 2026.