App Breaker in your browser
Check a website you own without installing anything. Included in the DevWorkroom subscription.
Start with a website you own. We guide you through ownership verification before running a short check.
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Checking account…
Register or manage your subscription1. Enter your website
This checks public HTTPS pages for loading errors, JavaScript errors, failed requests, broken images and desktop/mobile layout problems. It follows up to three links on the same website. It does not submit forms or test signed-in areas. Use the download for native apps and longer tests.
An active subscription is required for ownership setup and every test.
2. Verify that you own this website
In your domain provider’s DNS settings, add the TXT record below. This proves you control the domain. It does not change where your website is hosted.
Use the full record name, or just _devworkroom if your provider adds your domain automatically. Subdomains need their own record. Keep this record while using App Breaker. DNS changes can take time to appear.
If AI is helping you build, ask it: “Show me how to add this exact TXT record at my domain provider. Keep all existing records unchanged.” Give it the record shown above; never share account passwords.
3. Watch your test
Checks run for up to 45 seconds. Capacity is shared across subscribers: at most eight checks per UTC day and one at a time, subject to the hosting allowance. If capacity is full, try after the reset or use the desktop download.
No test is currently running.