Test Your Website Before IT Goes Live
The Migration Testing Tool — No Hosts File, No DNS Change

Preview your site on a new server, detect issues, and validate performance — without touching DNS or editing hosts files. A real, shareable URL your whole team can open.

✓ Built by admins, for admins & clients ✓ No client installations required ✓ No security issues

Generate Preview URL

e.g. 203.0.113.7, my-site.pages.dev, my-site.netlify.app
Deep Website Comparison
Screenshots · SEO · Security · Third-party scripts
📸
Visual Comparison
Pixel-by-pixel screenshot comparison detects layout changes and design regressions across pages.
🔧
Functional Testing
Validates links, images, and forms. Detects JavaScript console errors on the migrated site.
🔍
SEO Analysis
Compares titles, meta descriptions, and H1 tags using verified sitemap pages only.
🔒
Security Headers
Checks HSTS, CSP, X-Frame-Options, and all critical security headers on both servers.
⚡
Performance
Measures server response times and full page load performance across multiple pages.
📦
Third-party Scripts
Identifies analytics, payment, and support scripts that may need reconfiguration after migration.
Runs in background · Takes 1–3 minutes · Results appear automatically

The website migration
testing tool for a safer cutover

A staging environment alternative built by admins — test the website before go-live, then migrate without downtime.

🚀
Test Server Migration Before You Go Live
Verify your site works on the new server before you switch DNS. The cleanest way to migrate a website without downtime — no surprises after cutover.
👤
A True Hosts File Alternative
Send your client a plain URL — no hosts file edits, no browser extensions, no technical setup on their end. The fastest way to preview a site without a DNS change.
🔒
No Security Issues
Preview URLs are randomly generated and optionally password-protected. No credentials are exposed and no changes are made to your live site.
🌐
Free Temporary Preview URL
Get a free temporary URL (e.g., abcde.testurl.live) that points to your new server via NGINX reverse proxy — preview the website on the new server in seconds.
📊
Compare Old vs New Website Server
Run Lighthouse audits, screenshot diffs, SEO comparisons, security header checks, redirect chains, SSL validation, and a DNS propagation testing tool — every signal you need to check the website before going live.
How it works

Watch a preview URL being generated end-to-end

From entering the domain and new server IP, to the live preview opening on a temporary subdomain — see exactly what happens behind the scenes.

Animated walkthrough showing how TestURL.live generates a preview URL for a website migration
The problem

Website migrations are risky.

A bad cutover means downtime, lost revenue, and a frantic rollback while users hit broken pages. The traditional pre-flight check — editing your local hosts file — only validates one machine, your own.

Most teams still rely on hosts file edits or pure guesswork.

The solution

TestURL.live eliminates migration risk.

Generate a temporary, shareable preview URL that proxies your domain through the new server. Same domain header, same TLS handshake, same backend behavior — DNS doesn't move until you say so.

Ship infrastructure changes with confidence.

Catch issues before your users do.

Built for

Anyone who can't afford a bad cutover.

From a one-off WordPress move to a fleet-wide platform migration, the same preview URL workflow scales — and works just as well as a staging environment alternative when no staging server exists.

👤

Site owners

Switching hosts? Verify the new server before flipping DNS — a free hosts file alternative with zero setup.

⚙️

DevOps engineers

Pre-cutover validation: Lighthouse, security headers, redirect chains, SSL, DNS propagation — every signal you need to gate a deploy.

🏢

Web agencies

Send shareable preview links to non-technical clients. No hosts file walkthrough, no support tickets, no excuses on launch day.

🌐

Hosting providers

Prove the new stack works before customers migrate. Reduce churn from "unexpected behavior" tickets in the first 24 hours after cutover.

📝

WordPress developers

Move WordPress between hosts without breaking permalinks, plugins, or SEO. Compare old vs new website server side-by-side.

Why TestURL.live

Not the same as a hosts file edit.

Hosts file changes fix your machine, not your team's. TestURL.live gives you a shareable preview URL that behaves like a real production cutover — without the risk.

Traditional approachTestURL.live
Edit /etc/hosts on every machineOne shareable preview URL
Admin / root privileges requiredNo local setup
Doesn't work for non-technical clientsAnyone with the link can open it in a browser
You see one site state — your ownWhole team sees the same preview
No automated checks built inLighthouse, SEO, security, visual diff bundled
Tied to a single deviceWorks on phones, CI runners, QA bots

Stop guessing. Start validating.

Test your migration now — no hosts file, no DNS change, no signup required.

Test your migration now →