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

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 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%