checkfiletype.com
checkfiletype.com is a live website hosted on Cloudflare, Inc. (AS13335) in the United States, served by Cloudflare. cl0q first saw it on 2026-07-18 and last crawled it on 2026-07-24. It resolves to 104.21.93.18 and has mail (MX) records set up. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
CheckFileType.com - Free Online File Type Checker
Do you have an unknown file without an extension or an incorrect extension? This free site determines the true file type based on the file contents
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-07-18 |
| Last crawled | 2026-07-24 |
| IPv4 | 104.21.93.18 |
| IPv6 | 2606:4700:3035::ac43:cab5 |
| Network | AS13335 Cloudflare, Inc. · California |
| Mail (MX) | _dc-mx.c5206e08da5f.checkfiletype.com |
| Server | cloudflare |