Cf-Railgun

HTTP response header

Header usage statistics

Cf-Railgun response header information and usage statistics.

Websites using header Cf-Railgun 25,996
Percentage of websites that use Cf-Railgun header <0.1%
Total discovered header values 10,550
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 3,535,854 websites

Distribution by websites popularity

Cf-Railgun detection in the top websites by popularity

Top 10k sites 39 websites
Top 100k sites 233 websites
Top 1m sites 1,450 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
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 value Value prevalence
direct (starting new WAN connection) 52.11%
direct (waiting for pending WAN connection) 7.31%
0bad995d51 100.00 0.374716 0030 e6be 0.01%
000121ff69 stream 0.000000 0030 e6be 0.00%
00031c198b stream 0.000000 0200 0dda 0.00%
000460f9b3 0.00 0.015386 0030 e6be 0.00%
0006a2b62d stream 0.000000 0200 0dda 0.00%
0015f59e1f 0.06 0.601082 0030 0dda 0.00%
001766071c 100.00 0.392565 0030 e6be 0.00%
001d18db9a stream 0.000000 0210 0dda 0.00%
00233781d3 stream 0.000000 0210 0dda 0.00%
0024aaa97e stream 0.000000 0210 e6be 0.00%
fffe35c670 0.00 0.101511 0030 e6be 0.00%
002930f9e0 stream 0.000000 0200 0dda 0.00%
0030419a19 stream 0.000000 0200 e6be 0.00%
0031029771 stream 0.000000 0210 e6be 0.00%
0043cd00dc stream 0.000000 0210 0dda 0.00%
0049225dcc 0.00 0.033291 0030 e6be 0.00%
0049fb0c19 stream 0.000000 0200 e6be 0.00%
00532fabc6 stream 0.000000 0210 e6be 0.00%