IP = 104.18.30.62
Content type of robots.txt is text/html!
Look up this url in the url tool
https://u-buy.ch/.well-known/acme-challenge: 403 text/html
https://u-buy.ch/.well-known/csvm: 403 text/html
https://u-buy.ch/.well-known/nostr.json: 403 text/html
https://u-buy.ch/.well-known/security.txt: 403 text/html
https://u-buy.ch/.well-known/traffic-advice: 403 text/html