cside is a device intelligence solution that ties every session to the device that created it, from a baseline of 250+ browser, device, and network signals. Running at the browser layer, cside separates real humans from bots, AI agents, spoofed devices, and repeat offenders in real time, before server-side systems register them. Signals are captured on every session without sampling, giving fraud, risk, and growth teams a continuous view of who and what is on the site. Fake signups, agent-driven traffic, free-trial and promo abuse, multi-accounting, card testing, account takeover, and coordinated fraud rings are flagged instantly, with alerts sent to Slack, Teams, email, or webhooks. Device signals feed existing fraud and risk engines via API, and every completed evaluation can be exported daily to your own AWS S3 bucket in JSONL or Parquet for warehousing and modeling. cside deploys through a single line of code.
