Cf-Railgun

HTTP response header

Header usage statistics

Cf-Railgun response header information and usage statistics.

Websites using header Cf-Railgun40,036
Percentage of websites that use Cf-Railgun header<0.1%
Total discovered header values2,211
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

Cf-Railgun Directives

Cf-Railgun directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Connected technologies

Technologies that utilize the header

CloudFlare, category Content Delivery Networks, total 7,036,046 websites

Distribution by websites popularity

Cf-Railgun detection in the top websites by popularity

Top 10k sites17 websites
Top 100k sites279 websites
Top 1m sites1,655 websites

Websites utilizing Cf-Railgun

List of websites that use Cf-Railgun header

DomainCountryRankContacts
mdpi.com US2,089
www.mdpi.com US2,089
cochranelibrary.com US2,498
www.cochranelibrary.com US2,498
www.bmj.com US3,234
www.smartinsights.com US3,531
See full domain list
Flat price per the report, subscription is not required.

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Cf-Railgun header values

Header valueValue prevalence
direct (starting new WAN connection)73.21%
direct (waiting for pending WAN connection)21.24%
9b6bc0659a stream 0.000000 0210 0dda0.01%
d43539e98d stream 0.000000 0210 0dda0.01%
42e3b69339 stream 0.000000 0210 0dda0.01%
567dd89380 stream 0.000000 0210 0dda0.00%
31992f99fd stream 0.000000 0210 0dda0.00%
2d35a319ba stream 0.000000 0210 0dda0.00%
103045a881 stream 0.000000 0210 0dda0.00%
004669a5a0 stream 0.000000 0210 da0c0.00%
00845173f3 stream 0.000000 0200 57da0.00%
00bcc3a6ed stream 0.000000 0210 57da0.00%
00e82109a5 stream 0.000000 0200 0dda0.00%
0111c81595 stream 0.000000 0200 57da0.00%
016c5271a9 stream 0.000000 0200 da0c0.00%
01a572813b stream 0.000000 0200 57da0.00%
01cc74d444 stream 0.000000 0200 da0c0.00%
01d77c2c88 stream 0.000000 0200 57da0.00%
020aaafe02 stream 0.000000 0200 e6be0.00%
027a9c3a76 stream 0.000000 0211 57da0.00%