Turns any website into a free static QR code that never expires: checks the link, places the code on your image, scans the result to confirm, keeps a tracker.
Yunjian's verifier: give it a prompt, Skill, web page or mini-program; it says whether it's ready to ship and what to fix, with evidence. Checks, never edits.
Builds and hosts a professional website for you free on Cloudflare, even if you've never made one: plain-English steps, previews first, monthly check-ups.