Protocol

HTTP response header

Header usage statistics

Protocol response header information and usage statistics.

Websites using header Protocol 17,548
Percentage of websites that use Protocol header <0.1%
Total discovered header values 8
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

Protocol detection in the top websites by popularity

Top 10k sites 22 websites
Top 100k sites 173 websites
Top 1m sites 1,268 websites

Websites utilizing Protocol

List of websites that use Protocol header

Domain Country Rank Contacts
support.cloudflare.com United States of America 45
help.dreamhost.com United States of America 722
support.plesk.com United States of America 1,699
help.hover.com United States of America 1,725
support.cpanel.net United States of America 1,759
help.medium.com United States of America 1,812
See full domain list
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Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Protocol header values

Header value Value prevalence
HTTP/1.1 94.49%
http 5.35%
{PICS-1.1 {headers PICS-Label}} 0.06%
HTTP/1.1 403 Forbidden 0.05%
{PICS-1.1 {headers PICS-Label}}, {PICS-1.1 {headers PICS-Label}} 0.04%
{{PICS-1.1 {headers PICS-Label}} 0.01%
HTTP/1.2 0.01%
https 0.01%