IP = 168.119.43.207
Content type of robots.txt is text/html!
Look up this url in the url tool
https://matter-ammann.ch/.well-known/acme-challenge: 510 text/html
https://matter-ammann.ch/.well-known/csvm: 510 text/html
https://matter-ammann.ch/.well-known/nostr.json: 510 text/html
https://matter-ammann.ch/.well-known/security.txt: 510 text/html
https://matter-ammann.ch/.well-known/traffic-advice: 510 text/html