Cf-Railgun

HTTP response header

Header usage statistics

Cf-Railgun response header information and usage statistics.

Websites using header Cf-Railgun 8,869
Percentage of websites that use Cf-Railgun header <0.1%
Total discovered header values 2,994
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

CloudFlare, category Content Delivery Networks, total 907,878 websites

Distribution by websites popularity

Cf-Railgun detection in the top websites by popularity

Top 10k sites 40 websites
Top 100k sites 256 websites
Top 1m sites 1,621 websites

Websites utilizing Cf-Railgun

List of websites that use Cf-Railgun header

Domain Country Rank Contacts
bible.com United States of America 726
www.bible.com United States of America 726
www.pnas.org United States of America 916
www.bmj.com United States of America 1,061
science.sciencemag.org United States of America 1,195
mdpi.com United States of America 1,223
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 value Value prevalence
direct (starting new WAN connection) 58.19%
direct (waiting for pending WAN connection) 8.07%
000e98647a 100.00 0.478303 0030 0dda 0.01%
00257dc748 stream 0.000000 0202 3350 0.01%
002713f258 stream 0.000000 0310 e6be 0.01%
0035061f97 stream 0.000000 0230 e6be 0.01%
003e4fa062 stream 0.000000 0210 0dda 0.01%
0044b8e60a stream 0.000000 0210 e6be 0.01%
004d244e77 stream 0.000000 0210 e6be 0.01%
0055f7de0c 100.00 0.730293 0030 e6be 0.01%
0058795dc0 stream 0.000000 0210 e6be 0.01%
005a1ab1c3 stream 0.000000 0210 e6be 0.01%
0097456fa8 stream 0.000000 0210 e6be 0.01%
00c4b92f70 stream 0.000000 0200 e6be 0.01%
00ce25a068 stream 0.000000 0210 0dda 0.01%
00dba95d4e stream 0.000000 0200 e6be 0.01%
011b5ecf8b stream 0.000000 0210 0dda 0.01%
01262bf921 stream 0.000000 0210 e6be 0.01%
ffe7814a9d stream 0.000000 0200 57da 0.01%
0146f53695 stream 0.000000 0210 e6be 0.01%