Spot risky messages before you reply.
DoubleCheck quietly scans chats on LinkedIn, Facebook Messenger, and Telegram Web, and warns you when something looks off — with clear reasons.
Scams don't look obvious anymore. One reply can be enough.
No login required. Optional AI analysis may use external services.
Used by 50+ users
Available in the Chrome Web Store
Works on LinkedIn / Facebook / Telegram
Instant warning on risky messages
Privacy-first. We don't store your messages.
This is how people get scammed every day
See the difference
Without DoubleCheck vs. with DoubleCheck
Without DoubleCheck
Hey! I have an amazing job opportunity that pays $5,000/week. It's remote and flexible. Can you move this conversation to Telegram so we can discuss details?
Looks like a normal message.
No warning. No context.
With DoubleCheck
Hey! I have an amazing job opportunity that pays $5,000/week. It's remote and flexible. Can you move this conversation to Telegram so we can discuss details?
Most people reply to this.
Detected patterns: Off-platform request, unrealistic promise, pressure tactics
You see the warning before you reply.
DoubleCheck adds context instantly — so you don't reply blind.
Real messages. Slightly anonymized.
Real examples DoubleCheck catches
These are actual patterns we detect. Sound familiar?
These messages fooled real people.
"Can you move this conversation to Telegram?"
Scammers often move conversations off-platform to avoid detection and reporting.
"We just need a small processing fee…"
Legitimate opportunities don't ask for upfront payments.
"Your account will be restricted in 24 hours"
Urgent deadlines are a common pressure tactic used in scams.
"I have a job opportunity that pays $5,000/week"
Offers that sound too good to be true usually are.
Scams evolve daily.
AI scams now look human. DoubleCheck helps you spot them before you reply.
Try a quick scan (demo)
Paste a suspicious message and see how DoubleCheck would flag it.
How it works
DoubleCheck helps you spot risks. It's an awareness tool, not a guarantee.
Open a conversation
Navigate to any conversation on LinkedIn, Facebook Messenger, or Telegram Web.
DoubleCheck scans automatically
Pro users get automatic scanning. Free users can scan messages when something feels off.
See the risk score + why
Get a clear risk score with simple explanations of what looks suspicious.
Common scam patterns we detect
Fake job offers
Vague recruitment messages with unrealistic promises.
Crypto bait
Investment pitches and cryptocurrency-related scams.
Pay to release money
Requests for upfront payments, fees, or "processing costs."
Impersonation
Messages pretending to be from people or companies you trust.
Works on
More platforms coming soon.
Detect fake job offers, recruitment scams, and suspicious outreach.
Facebook Messenger
Spot phishing attempts, fake prizes, and impersonation scams.
Telegram Web
Identify crypto scams, investment schemes, and risky links.
Privacy-first by design
DoubleCheck does not require accounts or tracking.
Message text is sent to an AI service for analysis. We do not store full conversations or chat history.
Free & Pro
Frequently Asked Questions
Short answers. No fine print.