Alt-Svc
Read More at MDN DocsView SpecSafe to Use
Alt-Svc is not safe to use.
It’s supported by 75% of global browsers.
Browsers
ChromeDec 11, 2008v1.0.0
25%╱100%
100% of Chrome users are running a supported version.
SafariUnsupportedSafari does not support this feature.
EdgeJan 15, 2020v79.0.04%╱100%
There are no users of Edge running a supported version.
FirefoxMay 12, 2015v38.0.03%╱100%
100% of Firefox users are running a supported version.
Version Breakdown
Support
Adoption
Chrome
Dec 11, 2008 v1.0.0
25%╱100%
100% of Chrome users are running a supported version.
Dec 11, 2008 – Latest
v1.0.0+
25%╱100%
Full Support
Chrome Android
Unknown v1.0.0
39%╱100%
100% of Chrome Android users are running a supported version.
Unknown
v1.0.0+
39%╱100%
Full Support
Edge
Jan 15, 2020 v79.0.0
4%╱100%
There are no users of Edge running a supported version.
Jan 15, 2020 – Latest
v79.0.0+
4%╱100%
Full Support
Firefox
May 12, 2015 v38.0.0
3%╱100%
100% of Firefox users are running a supported version.
May 12, 2015 – Latest
v38.0.0+
3%╱100%
Full Support
Mar 31, 2015 – May 12, 2015
v37.0.0 – v38.0.0
Partial Support
Only supports draft-04
Firefox for Android
May 12, 2015 v38.0.0
Firefox for Android supports this feature.
May 12, 2015 – Latest
v38.0.0+
Full Support
Mar 31, 2015 – May 12, 2015
v37.0.0 – v38.0.0
Partial Support
Only supports draft-04
Internet Explorer
Unsupported
Internet Explorer does not support this feature.
No Support
Unknown v1.0.0
Quest Browser supports this feature.
Unknown
v1.0.0+
Full Support
Opera
Unknown v1.0.0
2%╱100%
100% of Opera users are running a supported version.
Unknown
v1.0.0+
2%╱100%
Full Support
Opera Android
Unknown v1.0.0
Opera Android supports this feature.
Unknown
v1.0.0+
Full Support
Safari
Unsupported
Safari does not support this feature.
No Support
Safari on iOS
Unsupported
Safari on iOS does not support this feature.
No Support
Samsung Internet
Apr 27, 2013 v1.0.0
3%╱100%
100% of Samsung Internet users are running a supported version.
Apr 27, 2013 – Latest
v1.0.0+
3%╱100%
Full Support
WebView Android
Sep 23, 2008 v1.0.0
WebView Android supports this feature.
Sep 23, 2008 – Latest
v1.0.0+
Full Support