One question. One tool. One answer.

Small tools that explain, decode or check a single thing — built when a question kept coming up. No accounts, no tracking, nothing to set up.

Tools

• Cloudflare error explainerError 522, 1020, “verify you are human”… whose fault it is, whether waiting helps, what to do. Paste the page or type the code./error/

Sister site

• isit.fyiYes/no answers to “is it …?” questions — is it down, is it private, is it a VPN. First tools arriving.isit.fyi