Comscore Crawler
ASNComscore operates measurement infrastructure. Historical ASNs remain useful context; crawler egress today often maps to cloud providers — confirm with Comscore before relying on ASN alone.
Comscore’s crawler and measurement fetchers are often seen on Amazon AWS infrastructure (AS14618), not only on legacy Comscore-announced space. Treat older static lists and AS46125/AS42320 as incomplete for current crawler allowlisting - validate with live traces and Comscore.
Autonomous systems (ASNs)
Known ASNs used by Comscore Crawler.
Legacy / historically cited Comscore ASNs
AS46125 and AS42320 remain commonly cited for historical Comscore-related routing; crawler egress today often maps to cloud providers (see AWS below).
Third-party hosting & clouds
Amazon.com, Inc. (AWS)
Current Comscore crawler and measurement traffic is frequently observed from AWS addressing (AS14618). Combine with Comscore documentation and your own packet captures.