Cloudflare Developers•2mo ago

HTTP Header "alt-svc" is not provided on the root domain with Pages

I have enabled HTTP/3 (with QUIC) in Dashboard - Speed - Optimization - Protocol Optimization, but there is no "alt-svc" on the root domain. akii.work:

HTTP/1.1 200 OK
Date: Thu, 21 Aug 2025 02:22:56 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Strict-Transport-Security: max-age=15552000; includeSubDomains; preload
Cf-Cache-Status: DYNAMIC
Server: cloudflare
Access-Control-Allow-Origin: *
Cache-Control: public, max-age=0, must-revalidate
Referrer-Policy: strict-origin-when-cross-origin
X-Content-Type-Options: nosniff
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=yJ0sT%2BSiUQ6W9q%2F%2BDRly8Ufq33r7og%2BkWqfJJzyP66ghJnBiHG%2BsuezO5H8lfkfJTzm3s%2FtD9qn8dTHNiJiq9QnWeYTYxpizZBzF%2BMmBs%2FgzIw%2FAqolGcWGwVoRGog%2Fnipn7%2FjW20Eg%3D"}],"group":"cf-nel","max_age":604800}
Nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Vary: Accept-Encoding
Content-Encoding: gzip
CF-RAY: 9726aa63ff53ef9f-EWR

HTTP/1.1 200 OK
Date: Thu, 21 Aug 2025 02:22:56 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Strict-Transport-Security: max-age=15552000; includeSubDomains; preload
Cf-Cache-Status: DYNAMIC
Server: cloudflare
Access-Control-Allow-Origin: *
Cache-Control: public, max-age=0, must-revalidate
Referrer-Policy: strict-origin-when-cross-origin
X-Content-Type-Options: nosniff
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=yJ0sT%2BSiUQ6W9q%2F%2BDRly8Ufq33r7og%2BkWqfJJzyP66ghJnBiHG%2BsuezO5H8lfkfJTzm3s%2FtD9qn8dTHNiJiq9QnWeYTYxpizZBzF%2BMmBs%2FgzIw%2FAqolGcWGwVoRGog%2Fnipn7%2FjW20Eg%3D"}],"group":"cf-nel","max_age":604800}
Nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Vary: Accept-Encoding
Content-Encoding: gzip
CF-RAY: 9726aa63ff53ef9f-EWR

www.akii.work

HTTP/1.1 301 Moved Permanently
location: https://akii.work/
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=9hEWGKw6drBX6ZgSuzYlgugoQXAExOjQ4KuwY8%2FDVM%2BHLpczYxE%2F5xqn3UiUZOlScxtLLqJZoYnFpnSuDjvDjBoVfAqoEZxMgLcnrNPWbXsDVGa70KNRH88%3D"}]}
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
date: Thu, 21 Aug 2025 02:28:53 GMT
server: cloudflare
server-timing: cfEdge;dur=17,cfOrigin;dur=0
cf-ray: 9726b3198b8c7c8e-EWR
alt-svc: h3=":443"; ma=86400

HTTP/1.1 301 Moved Permanently
location: https://akii.work/
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=9hEWGKw6drBX6ZgSuzYlgugoQXAExOjQ4KuwY8%2FDVM%2BHLpczYxE%2F5xqn3UiUZOlScxtLLqJZoYnFpnSuDjvDjBoVfAqoEZxMgLcnrNPWbXsDVGa70KNRH88%3D"}]}
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
date: Thu, 21 Aug 2025 02:28:53 GMT
server: cloudflare
server-timing: cfEdge;dur=17,cfOrigin;dur=0
cf-ray: 9726b3198b8c7c8e-EWR
alt-svc: h3=":443"; ma=86400

Both domains are pointed to akiirui.pages.dev via CNAME. And proxy is enabled in DNS - Records.

2 Replies

jieyitang•2mo ago

Actually, HTTPS type DNS records work just fine. It also prompts the browser to switch to HTTP3.

Akatsuki RuiOP•2mo ago

I temporarily fixed this by setting _headers for pages.

Gaming

Programming

HTTP Header "alt-svc" is not provided on the root domain with Pages

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