Connecting a domain of your own
A TXT record proves ownership, and only a real DNS query marks it “verified”.
On the “Addresses and domains” screen you type your domain and get the DNS records to add at your domain provider — a verification record, and records that point the address at us. Every value copies in one click.
The verification is real
Pressing “Verify” sends a real DNS query. The “ownership verified” mark appears only if the value that came back is exactly the one we asked for — pressing the button on its own verifies nothing.
A DNS update takes time at the provider. You can check again, and there is a limit on how many checks run in a row so that other people's DNS servers are not flooded.
Who holds a domain
A domain somebody has already proved ownership of cannot be connected on another project. A claim nobody proved blocks nobody, and is released the moment somebody does prove it — so a typo in somebody else's project cannot hold your address hostage.
Verification is never revoked automatically. A momentary DNS failure does not take a live site off the air.
Each app has one domain of yours. Connecting another replaces the previous one, and every connection, verification and removal is written to the log.