Playbook: move ads.txt and sellers.json during a domain change

Playbook: move ads.txt and sellers.json during a domain change
Watching: domain migrations quietly zero out programmatic revenue when authorization records lag the redirect.

— Publish the new domain's ads.txt 72 hours before the DNS cutover
— Ask each SSP to add the new root domain to their sellers.json in parallel
— Keep old /ads.txt live and 200-ing during the overlap window, not 301'd
— Notify your top 5 DSPs' supply teams so allowlists update
— Verify crawlers re-fetched: check SSP dashboards for the new domain authorized

Impact: skip the overlap and you eat 48-72h of unauthorized-inventory blocks. sourced