appcenter.ms

Conformance report

Tracked site: https://appcenter.ms/. Checked against the Web 1.0 Specification (2026 Edition), front page only, roughly every two weeks.

F

Fails on multiple major faults. Latest check: 2026-09-29. 4 major, 4 minor; 3.0 MB first-party transfer, 32 requests.

Rule by rule

RuleFaultResult
JS-01JavaScript MAJOR
  • inline <script>
  • inline <script>
  • inline <script>
TP-01Third-party requests MAJOR
  • https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/normal/latest.woff2 (via url() in https://appcenter.ms/styles/mwf-west-european-default.min.css)
  • https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/normal/latest.woff (via url() in https://appcenter.ms/styles/mwf-west-european-default.min.css)
  • https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/normal/latest.ttf (via url() in https://appcenter.ms/styles/mwf-west-european-default.min.css)
  • https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/Light/latest.woff2 (via url() in https://appcenter.ms/styles/mwf-west-european-default.min.css)
  • https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/Light/latest.woff (via url() in https://appcenter.ms/styles/mwf-west-european-default.min.css)
  • and 10 more
CK-01Cookies MAJOR
  • Set-Cookie on https://appcenter.ms/
  • Set-Cookie on https://appcenter.ms/styles/mwf-west-european-default.min.css
  • Set-Cookie on https://appcenter.ms/images/logo-microsoft.svg
  • Set-Cookie on https://appcenter.ms/images/app-center-hero.svg
  • Set-Cookie on https://appcenter.ms/images/app-center-diagnostics.png
  • and 12 more
WT-01Excessive transfer MAJOR
  • total first-party transfer 3.02 MB (over 2 MB)
AV-01Autoplaying media pass
HY-01Missing doctype pass
HY-02Missing title pass
HY-03Missing language pass
HY-04Missing charset pass
HY-05Missing alt text pass
FT-01Web fonts 3 minor
  • @font-face in https://appcenter.ms/styles/mwf-west-european-default.min.css
  • @font-face in https://appcenter.ms/styles/mwf-west-european-default.min.css
  • @font-face in https://appcenter.ms/styles/mwf-west-european-default.min.css
  • @font-face in https://appcenter.ms/styles/mwf-west-european-default.min.css
  • @font-face in https://appcenter.ms/styles/mwf-west-european-default.min.css
  • and 1 more
RQ-01Excessive requests 1 minor
  • 32 resource requests
FR-01First-party frame pass

History

DateGradeMajorsMinors WeightRequests
2026-09-29 F 4 4 3.0 MB 32
2026-09-15 F 4 4 3.0 MB 32
2026-09-01 F 4 4 3.0 MB 32
2026-08-17 F 4 4 3.0 MB 32