Lookalike Domain Checker / Guides
How to protect your brand from impersonation
By Trusterity · Updated 14 November 2026
Criminals don't need to hack you to steal from your customers and suppliers. They just need to look like you.
Five steps
- Know your look-alikes. Check your domain and repeat regularly.
- Lock down email. Publish SPF, DKIM and a DMARC policy so your own domain is hard to spoof.
- Register the obvious ones. Key typos and endings of your main brand are cheap insurance.
- Train the people who pay and answer. Finance and support teams see these first — try the Invoice Fraud Test.
- Monitor and take down. Domains are one layer; fake social profiles, support numbers and phishing pages are others.
Want it done for you?
Trusterity monitors impersonation across domains, social networks and messengers.
Now catch them in your inbox.
T-Frame is a free Chrome extension for Gmail, Outlook and WhatsApp Web. It shows the risk of each message and why, and warns you before you open a dangerous link.
Free. Install, sign up with your email, done.
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T-Frame works on your computer, in Chrome.