Alternate-Protocol

HTTP response header

Header usage statistics

Alternate-Protocol response header information and usage statistics.
Websites using header Alternate-Protocol2,310
Percentage of websites that use Alternate-Protocol header<0.1%
Total discovered header values25
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

Alternate-Protocol Directives

Alternate-Protocol directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Alternate-Protocol header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing Alternate-Protocol

List of websites that use Alternate-Protocol header
DomainCountryRankContacts
3dissue.com United States20,556
macstories.net United States36,181
exali.de Germany42,673
www.exali.de Germany42,673
telesurtv.net Argentina47,800
www.stbaldricks.org United States56,776
See full domain list

Common header values

List of top common Alternate-Protocol header values
Header valueValue prevalence
443:npn-spdy/344.07%
443:npn-spdy/220.65%
443:npn-spdy/3.112.60%
443:npn-spdy/47.71%
443:npn-http/24.46%
443:npn-http2/32.73%
443:h22.29%
443:quic1.77%
443:npn-spdy/3,443:npn-spdy/21.04%
443:npn-http2/20.74%
443:npn-spdy/2,443:npn-spdy/30.69%
:npn-spdy/20.26%
443:npn-spdy/2, 443:spdy/20.22%
443:npn-/20.13%
1:npn-spdy/2,443:npn-spdy/20.09%
443:http20.09%
443:npm-spdy/30.09%
443:npn-http220.09%
443:ALPN+h20.04%
443:HTTP/20.04%