Sentra Edge for Cloudflare Workers is now generally available

Bot mitigation for high-volume web apps

Stop scraping, credential attacks, transaction abuse, and fraud before they reach your app — without CAPTCHAs, slowdowns, or extra steps for real users.

or $ npm i @sentra/edge

Blocked · cred-stuff 11ms

Distributed login attack against /auth from 1,840 IPs — caught on signature, cadence, and proxy rep.

12 ms p95 ap-northeast-1

Behavior, device, network & policy collapsed into one verdict before your origin sees the request.

Throttled · agent v3 9ms

LLM scraper hammering /search at 240rps — served the slow lane, real users untouched.

Allowed · human 8ms

18-day session, native input cadence, no proxy — confidence 0.97. Through to origin.

Blocked · ATO replay 10ms

Valid token, impossible travel — 4,200km in 90s. Caught, session revoked, owner alerted.

0.012% FP control set

False-positive rate measured against verified humans across 47 verticals — auditable, every decision.

Trusted in production by

Northwind lumen/co Atlas&Co VELA Halcyon RIVERLINE Mercato stride.io PARALLAX Foundry cinder.dev QUARTZ Mercer&Sons Holberton orbital/io Pinecone

Bot Defender

The only bot protection you need.

Every verdict at the edge — allowed, blocked, challenged, monitored — in one console. Drill into a session, see why it scored, and tune the rule that fired without leaving the page.

Open the Bot Defender demo →

us-east-1 · last 24 hr

Bot Defender Overview

Monitor protected requests, enforcement outcomes, and risk concentration across your active sites.

Allowed 71.4% 43,240 sessions · low risk

Blocked 24.1% 3,847 sessions · 6 threat types

Challenged 2.5% 1,204 sessions · 87% resolved

Monitored 2.0% 962 sessions · shadow mode

Traffic Overview

Requests evaluated by Sentra over time, split by verdict.

Allowed Challenged Blocked

8K6K4K2K0

00:0003:0006:0009:0012:0015:0018:0021:00Now

Decision Breakdown

How the rule engine resolved traffic — allowed, challenged, or blocked.

Allowed

43,240

71.4%
Blocked

3,847

24.1%
Challenged

1,204

2.5%
Monitored

962

2.0%

Live Verdicts Live

Session ID	IP address	Location	Risk	Action	Threat
sess_f9a2b341	91.108.4.1	Moscow, RU	94	● Block	Credential stuffing
sess_a1c93e02	203.0.113.45	New York, US	12	● Allow	—
sess_7d8f1290	45.33.32.156	Fremont, US	61	● Challenge	Suspicious timing
sess_e3190aff	198.51.100.22	Chicago, US	88	● Block	Card testing
sess_b8d12904	185.220.101.4	Amsterdam, NL	91	● Block	API scraping