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Look-alike domains: how criminals copy your company's address
By Trusterity · Updated 14 November 2026
Most invoice fraud and phishing starts with a domain that is almost yours. One changed letter is enough to fool a busy reader.
The common tricks
- Look-alike characters: 0 for o, 1 for l, rn for m.
- Typos: a missing, doubled or swapped letter.
- Other endings: .co instead of .com, or a country ending.
- Extra words: yourcompany-support.com, secure-yourcompany.com.
Why email matters most
A look-alike that can send email (it has MX records) is ready for fake invoices and CEO fraud. One with only a website is usually a phishing or fake shop page.
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.
Add T-Frame to Chrome — free
T-Frame works on your computer, in Chrome.