Share the suspicious thing
A URL, message, product listing, email, screenshot, or payment request.
Decision help for suspicious moments
Before you click, pay, or reply.Check the evidence.
Paste a link, email, chat, payment request, or screenshot. SignalCheck explains what looks wrong and tells you what to do next.
Private by designEvidence, not mystery scores3 free checks daily
A useful result, not a mystery score
You'll see a clear action, live evidence, data sources, and anything that remains unknown.
How it works
Not a score. A decision you can understand.
A green number can create false confidence. SignalCheck separates technical signals from human pressure tactics, then shows the evidence behind its recommendation.
Try the interactive checker →We inspect multiple signal layers
Domain history, redirects, threat lists, language pressure, identity claims, and payment methods.
You get a clear next action
Low risk, suspicious, or high risk—with concrete reasons and a safe verification step.
Commercial threat data, correctly licensed
Production checks use Google Web Risk or another commercially licensed provider—not the non-commercial Safe Browsing API.
Read Google's policy ↗Built around the real question
“Should I trust this person with my money?”
Closer to the decision than a generic domain reputation score.
Marketplace01
Should I pay this seller?
Spot courier tricks, off-platform payment pressure, and fake buyer protection.
Check this scenario →WhatsApp02
Is this message a scam?
Find impersonation, urgency, verification-code requests, and suspicious links.
Check this scenario →Rentals03
Is this deposit request safe?
Check rushed deposits, remote landlords, copied listings, and wire-only payment.
Check this scenario →Investments04
Is this profit screenshot real?
Flag guaranteed returns, crypto transfers, recovery fees, and fake dashboards.
Check this scenario →Shopping05
Is this store legitimate?
Review domain signals, redirects, malware lists, checkout pressure, and payment risk.
Check this scenario →Romance06
Should I send this person money?
Detect emotional leverage, emergency stories, secrecy, and irreversible payment methods.
Check this scenario →Human signals matter
Scams often look normal until the payment request.
That is why SignalCheck reads the conversation, not just the domain. It looks for urgency, impersonation, secrecy, unusual payment methods, and attempts to move you away from platform protection.
- Explains the phrase that triggered each warning
- Separates verified facts from unknowns
- Gives a safer way to verify independently
Simple protection
Pause a bad payment before it happens.
Start free. Upgrade when you need more checks or want to protect family.
Already subscribed? Sign in with the same email used at checkout to unlock unlimited checks.
Free
For the moment that makes you pause.
$0forever
- 3 basic checks every day
- Links and pasted text
- Evidence-based result
Personal
For frequent shopping, messaging, and payments.
$6.99per month
- Unlimited links and text
- Screenshot analysis
- Saved check history
Family
A simple safety net for the people you care about.
$39per year
- Invite up to 5 people
- Shared scam alerts
- Family safety digest
Business API
Decision evidence inside your own workflow.
$79from / month
- Commercial risk API
- Usage dashboard
- Email support
Important context
What a scam checker can—and cannot—tell you.
Can SignalCheck guarantee something is safe?
No. A low-risk result means no strong warning signals were found in the available evidence. It is not a guarantee, and high-value payments should still be verified independently.
What happens to uploaded screenshots?
Images are sent only for the requested analysis, are not stored by SignalCheck, and the result identifies the AI provider involved. Remove passwords, account numbers, and other unnecessary personal data before uploading.
Why not show one trust score?
A single number hides uncertainty. SignalCheck shows which facts are known, which signals are suspicious, and which checks still require verification.
What data sources does the live beta use?
Authoritative RDAP registration data, live redirect and response inspection, HTTPS and URL structure signals, deterministic social-engineering rules, and—when configured—Google Web Risk and AI screenshot analysis.
If something feels off, check before you act.
Paste the message, link, or request. Get the evidence in seconds.
Check it free