telegram.org

Conformance report

Tracked site: https://telegram.org/. 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. 3 major, 5 minor; 3.1 MB first-party transfer, 108 requests.

Rule by rule

RuleFaultResult
JS-01JavaScript MAJOR
  • <script src="/js/main.js?49">
  • <script src="/js/tgsticker.js?32">
  • <script src="/js/main-theme.js?6">
  • inline <script>
  • onclick on <a href="#">
  • and 10 more
TP-01Third-party requests pass
CK-01Cookies MAJOR
  • Set-Cookie on https://telegram.org/
WT-01Excessive transfer MAJOR
  • total first-party transfer 3.08 MB (over 2 MB)
AV-01Autoplaying media pass
HY-01Missing doctype pass
HY-02Missing title pass
HY-03Missing language 1 minor
  • no lang attribute on <html>
HY-04Missing charset pass
HY-05Missing alt text 3 minor
  • <img src="https://telegram.org/file/400780400741/6/aFBFZ5lNqO8.66680.webp/0e567958d5b96a21">
  • <img src="https://telegram.org/file/400780400366/6/dI0zgi0mM5s.323818.webp/6a362dadee6e7e6">
  • <img src="/file/464001897/3/f0Go0rLpEwk.11343.png/dd4eeb46cc5efc0688">
  • <img src="/file/464001737/4/Fn57W9l3xI0.15286.png/d4b936ecc2c939f4fa">
  • <img src="/file/464001560/2/n7EACfx4FPY.16465.png/7318c11715aa2ec45b">
  • and 6 more
FT-01Web fonts pass
RQ-01Excessive requests 1 minor
  • 108 resource requests
FR-01First-party frame pass

History

DateGradeMajorsMinors WeightRequests
2026-09-29 F 3 5 3.1 MB 108
2026-09-15 F 3 5 3.1 MB 108
2026-09-01 F 3 5 3.1 MB 108
2026-08-17 F 3 5 3.1 MB 108