After moving hosts, do not stop at checking the homepage. Test the workflows that matter to visitors and staff.
Check Pages and Media
Open key pages, blog posts, images, downloads, and any custom landing pages.
Check Forms
Submit contact forms and confirm the messages arrive in the right inbox.
Check Admin Areas
Log in, edit a draft page, upload an image, and check for warnings or errors.
Check Background Tasks
Review cron jobs, scheduled posts, backups, and payment callbacks if the site uses them.
A migration is complete when the site works, not just when DNS points at the new server.