rfchecker.com
rfchecker.com is a live English-language website hosted on Cloudflare, Inc. (AS13335) in the United States, served by Cloudflare. cl0q first saw it on 2026-10-12 and last crawled it on 2026-10-13. It resolves to 104.21.51.127. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
Red Flag Checker
Red Flag Checker highlights five wordiness patterns in business writing and gives students one score they can move. Built for writing instructors.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-10-12 |
| Last crawled | 2026-10-13 |
| IPv4 | 104.21.51.127 |
| IPv6 | 2606:4700:3033::ac43:b49a |
| Network | AS13335 Cloudflare, Inc. · United States |
| Language | en |
| Server | cloudflare |