About
Rollbar is a issue trackers catalogued in the Wappalyzer database. Sourcemap Explorer flags it on any page that exposes one of its known signals.
Categories: Issue trackers
Quick facts
How we detect Rollbar
Each signal alone is rarely conclusive — Sourcemap Explorer cross-references all of them and weights by confidence. You can reproduce any of these checks yourself in Chrome DevTools.
Script URL pattern. Typically a CDN host or chunk path that ships with the technology.
rollbar\.js/([0-9.]+)
FAQ
How do I check if a website is using Rollbar?
Open the page in Chrome, click the Sourcemap Explorer toolbar icon, and read the Stack tab. The popup matches Rollbar's fingerprint signals (response headers, asset URL prefixes, runtime globals, sourcemap paths) and flags it whenever any combination is found. The same checks can be reproduced manually in DevTools — see the "How we detect" section above.
What Rollbar version can Sourcemap Explorer detect?
Rollbar ships as a hosted issue trackers rather than a bundled npm package, so version-specific detection isn't always possible. Where the platform leaks a version in response headers (`X-Powered-By`, `Server`, generator meta tags) we surface it; otherwise we report presence only.
Where can I read more about Rollbar?
Official site: https://rollbar.com/. For Sourcemap Explorer's detection guide, see the deep-dive link below or the related guides in the cross-link section.
Detected by Sourcemap Explorer
Open the popup on any page running Rollbarand you'll see the exact version pulled from the bundled package.json when sourcemaps are exposed.