Source CIDR

Semrush Bot

Semrush documents crawling behavior and identification in knowledge-base articles.

Autonomous systems

BGP context

Semrush operates its own autonomous system in BGP. Crawler traffic is also observed on Google Cloud (AS396982) and may traverse other providers at the edge; combine AS209366 with their KB guidance and your own traces.

AS209366

Third-party hosting & clouds

Google LLC (GCP)

AS396982

SemrushBot egress is commonly seen from GCP addressing (AS396982) in addition to AS209366.