The CF-RAY response header is a unique ID from CloudFlare and indicates that the resource was served through CloudFlare. The CF-Cache-Status response header indicates specifically if the file was from the cache or not. If the value of CF-Cache-Status is HIT then that resource was served from CloudFlare's cache
Websites using header CF-RAY | 909,415 |
Percentage of websites that use CF-RAY header | 7.80% |
Total discovered header values | 909,403 |
Header uses directives | No |
Header values are unique or random | Yes |
Most popular in the country | ![]() |
|
Top 10k sites | 2,561 websites |
Top 100k sites | 14,663 websites |
Top 1m sites | 121,013 websites |
Domain | Country | Rank | Contacts |
---|---|---|---|
|
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33 | |
|
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34 | |
|
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37 | |
|
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69 | |
|
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94 | |
|
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129 |
Header value | Value prevalence |
---|---|
- | 0.00% |
607852a0cc4c0353-ORD | 0.00% |
605c083ce8053b34-SJC | 0.00% |
605550cebc3a39a2-SEA | 0.00% |
d13b3671cfa213d29caa52a2a69f0da3 | 0.00% |
606014e0497142c3-LAX | 0.00% |
604751c21a3b35da-LAX | 0.00% |
604013bcfceced1b-SJC | 0.00% |
5f6bc1edb980029d-SEA | 0.00% |
3b1412753f475cc969c37231dd6eaea2 | 0.00% |
4445414442454546-LED | 0.00% |
4fe9c4aea8d5ced8-IAD | 0.00% |
50433176194ad89e79418efd1478446a | 0.00% |
5813b2db0bdbf1a6-ATL | 0.00% |
589d3b43886ddd8f-SIN | 0.00% |
5a1e50e6e88904c8-LAX | 0.00% |
5a1e59914bd8e7fd-LAX | 0.00% |
5a1e5d1cbb76eb49-LAX | 0.00% |
5a1e5d2bcf79987b-LAX | 0.00% |
5a1e89458828d392-LAX | 0.00% |