Check it before you reply, pay or ship.

What you can do here

Paste a message, phone number or email into the scam check and get a caution level, the warning signs we found and what to do next. Sellers can check payment emails and buyer messages for the tricks fake buyers use. Anyone can report a scam number or text, and the guides explain the most common scams step by step. It’s free, and you don’t need an account.

Where the information comes from

• The message itself. AI reads the wording and any links for the patterns scam messages share, such as pressure, look-alike links and requests for codes or payment.
• Public sources. The check looks for public mentions of the number or email and lists the sources so you can open them yourself.
• Community reports. People report scam calls and texts here. A person reviews every report before it’s published, and we show the scam type and number of reports, never who reported it.
• FTC complaint data. We count complaints in the FTC’s public Do Not Call data. The FTC doesn’t verify these complaints.

How we write the guides

ContactCheckup writes its own guides and links to the FTC, FBI and other primary sources behind specific advice. Each guide shows when it was last updated. If you spot a mistake, tell us through the support form and we’ll correct it.

Know the limits

A caution level is an estimate, not proof. Scammers fake caller ID, so a reported number may belong to someone who wasn’t involved, and a brand-new scam number may have no reports at all. When money or account access is involved, contact the company through an app or a number you already trust.

Who runs ContactCheckup

ContactCheckup is operated by Asahi Management LLC. Questions, corrections and privacy requests go through our support form.