rubrkit.com
rubrkit.com is a live English-language website hosted on Amazon.com, Inc. (AS16509) in the United States, served by Vercel. cl0q first saw it on 2026-09-15 and last crawled it on 2026-09-15. It resolves to 216.150.1.1 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:
Rubrkit | Grade, rewrite, and test your AI instructions
Rubrkit reviews prompts, agent specs, commands, skills, workflows, and rubr_flow procedures against a clear 10-dimension rubric, then turns weak instructions into testable rewrites.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-09-15 |
| Last crawled | 2026-09-15 |
| IPv4 | 216.150.1.1 |
| Network | AS16509 Amazon.com, Inc. · California |
| Mail (MX) | mailserver.purelymail.com |
| Language | en |
| Server | Vercel |
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