Rupt vs. Cloudflare
One guards the edge of your network. The other guards the accounts inside your app.
The short version
Updated August 2026
- Cloudflare protects the network edge: bot scores, JA4 fingerprints, WAF rules, and managed challenges applied to traffic before it reaches your app.
- It sees requests, not accounts. Email and phone intelligence, account sharing and takeover detection, and OTP challenges are outside its scope, so account fraud still reaches your application.
- Rupt is a full fraud engine. It includes fingerprinting, email and phone intelligence, a rules engine, hosted challenges, and an AI agent that investigates accounts and monitors for new patterns.
- The two stack. Plenty of teams run Cloudflare in front of everything and Rupt at the application layer, where accounts live.
Capabilities.
Checked against both products' public pricing pages and docs, August 2026.
Why choose Rupt.
Account-centric by design
Every device, IP, and action rolls up to the user behind it. You investigate accounts, not anonymous requests, and the full history is already assembled when you get there.
Continuous monitoring
Every signup, login, and sensitive action is evaluated, so an account's risk is tracked across its lifetime and new patterns surface as they form, not after the damage.
Automated challenges
Risky actions trigger hosted email or SMS challenges automatically. Legitimate users clear them in seconds, attackers don't, and nobody on your team had to send anything.
A force multiplier for risk teams
Detection, decisioning, and enforcement run continuously without headcount. A team of one gets real coverage, and an established team spends its hours on judgment calls instead of triage.
AI-driven investigations
The AI agent digs into flagged accounts and watches for emerging abuse patterns around the clock, so your team reviews conclusions instead of assembling evidence.
Coverage across the whole journey
Evaluations are priced to run everywhere, from signup to checkout to content access, so you see the account's behavior end to end instead of a snapshot at the login gate.
Support that isn't gated behind Enterprise
Integration setup help, developer meetings, and direct Slack and email access with replies in hours come with every plan. Most vendors reserve that level of support for their top tier; with Rupt it's just how support works.
Single-vendor pricing
Fingerprinting, email and phone intelligence, rules, and challenges usually mean a vendor and an invoice each. Because Rupt ships them together, the bundle costs less than the sum of the point tools.
Using Rupt with Cloudflare.
This one isn't a migration. The common setup is both, each at its own layer.
- 01
Keep Cloudflare doing what it does: proxy, WAF, and bot filtering at the edge. Nothing about Rupt changes that.
- 02
Load the Rupt SDK and call evaluate() on signups, logins, and sensitive actions. Rupt reads real client IPs correctly behind Cloudflare's proxy.
- 03
Turn on policies in observe mode and watch what the edge lets through: shared accounts, fake signups, and takeover attempts from real browsers.
- 04
Enforce. Risky logins get a hosted email or SMS challenge, abusive accounts get blocked, and everything is attributable to a device and an account, not just an IP.
Frequently asked questions.
See Rupt on your traffic.
Book a demo and we'll walk through your use case, show you the signals on real evaluations, and price out your volume.
- A walkthrough tailored to your use case.
- How detection, the rules engine, and challenges fit your stack.
- Pricing and a rollout plan for your volume.