Sightline raises $40M to expand UX observability and session replay for enterprise apps

Tech · 4 min read

Sightline secured $40 million in Series B funding to scale its UX observability platform offering session replay, friction scoring, and automated root-cause suggestions. The company targets enterprise product teams looking to prioritize UX debt alongside engineering issues.

Sightline's new features include an AI analyzer that groups similar session failures, proposes likely fixes, and outputs reproducible steps for developers. The platform integrates with bug trackers, CI tools, and feature flags to correlate regressions with recent releases.

Funding will be used to expand global ingestion capacity, add privacy-first anonymization modules, and build a compliance suite for regulated industries. Sightline also announced partnerships with several customer experience consultancies to accelerate enterprise adoption.