Overview
See what external domains a page uses. Scan again after a change to spot what's new, removed, or different.
External Domain Check helps web developers, QA engineers, agencies, and privacy-minded site owners answer one question after a release or website change: did the set of external domains this page talks to change? Open a page you own, maintain, test, or are otherwise authorized to inspect, click the extension, and choose Scan page. Save the external domains it normally uses as a baseline. After a deploy or other change, scan the same page again to see exactly what's new, what's no longer there, and what's being used differently (script, stylesheet, font, image, media, iframe, fetch/XHR, beacon, other) — compared with the exact, precise value (protocol, hostname, and port) underneath, for anyone who needs it. Nothing is applied automatically: you decide whether a difference is expected, and only you can choose to use a new scan as the updated baseline, with every earlier baseline kept in local history and restorable anytime. Export a saved check as JSON, or copy a plain-text comparison report. A new domain is never described as malicious, unsafe, or non-compliant — only as a change from what you told the extension to expect. This is an on-demand check, not continuous monitoring: scanning only happens when you click Scan, nothing runs in the background, and all data stays on your device.
Details
- Version0.1.0
- UpdatedAugust 19, 2026
- Offered byBrowser Product Lab
- Size35.6KiB
- LanguagesEnglish
- DeveloperMemento Software ApS
Vesterled 3 Tjæreborg 6731 DKEmail
browserproductlab@gmail.comPhone
+45 44 16 49 93 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
- D-U-N-S306293302
Privacy
External Domain Check has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
External Domain Check handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
