DoubleCheck before you reply, click, or run.
Spot fake recruiters and phishing in your DMs, or scan GitHub repos for malicious code and leaked secrets. Protect your chats and your codebase instantly.
Account optional • Works instantly • Privacy-first
Used by professionals on LinkedIn and Telegram
Three ways DoubleCheck protects you
Message scanning in your DMs, plus repo tools for malicious code and leaked secrets.
Message Risk Scanner
Spot fake recruiters, crypto bait, and phishing in LinkedIn, Messenger, and Telegram before you reply.
Learn more →Malicious Code Check
Scan public GitHub repos or ZIP files for hidden payloads, obfuscated scripts, and suspicious runtime behavior before you install.
Learn more →Secret Leak Check
Prevent accidental exposure. Scan repos for exposed API keys, credential files, and git-history leaks.
Learn more →Used by 70+ users
Available in the Chrome Web Store
Works on LinkedIn / Facebook / Telegram
Instant warnings while you chat
Privacy-first. No message storage
How it works
DoubleCheck helps you spot risks. It's an awareness tool, not a guarantee.
Open a chat
Go to LinkedIn, Facebook, or Telegram and open any conversation.
Click the Scan icon
Click the scan buton the chat window.
Pro users get automatic scanning
Click the score button
After scanning completes, click the risk score to see the full analysis.
Review the results
See a detailed risk score with clear explanations of what patterns look suspicious.
Watch the 1-minute walkthrough
See exactly how to use DoubleCheck on any supported platform.
Try a quick scan (demo)
Paste a suspicious message and see how DoubleCheck would flag it.
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
Account optional. No tracking.
Sign in only if you want account-based limits or Pro benefits. Message text is sent to an AI service for analysis, but we do not store full conversations or chat history.
More DoubleCheck tools are coming
The same quick risk check, expanding beyond suspicious DMs.
Repo Scanner
Check unknown GitHub repos and vibe-coded exports for malicious scripts before you run them.
Secret Leak Check
Check files and repos for exposed API keys, tokens, and credentials before you share them.
Recruiter Check
Review suspicious recruiter messages before you reply, click, or move the conversation off-platform.
Don't reply blind to scammers
Fake job offers, crypto bait, and LinkedIn scams often look harmless at first. DoubleCheck flags the patterns before you reply.
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 harmless.
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 have 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 early.
Free & Pro
Free
Best for: occasional suspicious messages
- ✓Manual scans (5/day)
- ✓Basic warnings
- ✓Job posting risk scan (limited)
- ✓Basic Repo & Secret previews
- ✓Supported platforms: LinkedIn, Facebook, Telegram Web
Daily limits apply. Full repo & secret reports also available for $3.99 each.
Automatic scanning is available on Pro.
Pro
Best for: Peace of mind — stop thinking about scams, let DoubleCheck watch for you
- ✓Automatic DM scanning & warnings
- ✓Unlimited job posting risk scans
- ✓5 Full Repo Scans / day (Unmask files, snippets, line numbers)
- ✓10 Secret Leak Reports / day (Find keys & fix steps)
Cancel anytime. Includes daily full reports—no $3.99 unlocks needed.
Frequently Asked Questions
Short answers. No fine print.