Server Diff
Compare Two Servers Side-by-Side
Paste your old IP and new IP. We hit both with your domain's hostname, then diff status codes, headers, redirects, response time, mixed content, and body hashes. The QA tool for DNS migrations — without touching DNS.
What the diff catches
- Different HTTP status codes between old and new (e.g. 200 → 500)
- Header drift: missing CSP, Cache-Control change, server software difference
- Redirect chain length change (loop detection, missing https redirect)
- Body content hash mismatch (database not migrated, theme broken)
- Mixed-content count regressions on HTTPS pages
- Response time regression beyond 200ms threshold
Frequently asked questions
When should I use a server diff?
Before a DNS cutover — compare the old and new server to confirm the new one serves identical status codes, headers, and content.
What does the body hash compare?
A SHA-256 of each page's HTML, so you can instantly spot any content difference between the two servers.
Do I need to change DNS to test?
No — you provide both IPs and we query each directly, so you test the new server before touching DNS.
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