Post-migration checklist

The files and database are across — now verify the site actually works end to end before you cancel the old host. Run this list.

Site & content

• Home page loads at https://yourdomain.com (not a subfolder).
• Internal links, images, and downloads work (no 404s).
• Forms submit and dynamic pages render (the database connection is right).
• No mixed-content warnings — all assets load over https://. For WordPress, run a search-replace of http:// → https://.

HTTPS / SSL

• SSL issued and the padlock shows.
• http:// redirects to https://.

Email

• Mailboxes/forwarders recreated.
• MX record points to the new server.
• SPF, DKIM, DMARC set — send a test to Gmail and check all PASS.
• A test email actually arrives in the inbox, not spam.

DNS

• A/AAAA records point to the new IP; dig +short yourdomain.com confirms it.
• Any subdomains and CNAMEs recreated.

Behind the scenes

• Cron jobs re-added and running.
• App config/secrets set as environment variables.
• Database credentials updated to the new DB.
• A fresh backup is configured and has run once.

Performance & security

• Modern PHP + OPcache (PHP sites).
• Firewall allows only 22/80/443 (+ mail/DNS).
• Run the hardening checklist.

Finally

• Monitor the new server for a few days.
• Then cancel the old host — not before.

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