boomerang is a JavaScript library that measures the page load time experienced by real users, commonly called RUM (Real User Measurement).
Boomerang is a javascript framework technology. boomerang is a JavaScript library that measures the page load time experienced by real users, commonly called RUM (Real User Measurement).. Currently detected on 58 websites in the Glympt index.
Official website: akamai.github.io.
By scanning headers, HTML, JS globals, meta tags, and cookies. Detection is automated and non-intrusive.
Confidence averages 100% for Boomerang. ≥70% is highly reliable.
Yes. Pro and Business plans include CSV export with full filtering.
Major sites: ~7 days. Smaller domains: ~30 days. Trigger fresh scans from the dashboard.
Boomerang gained 58 domains in 30 days.
0–100 score indicating detection certainty. Multiple strong signals = high confidence.