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DefendDomain
Under attack?

Criminals impersonate you.We shut them down.

They register domains that look like yours to send fake invoices, clone your site, scam your customers and phish your staff. Our award-winning company finds them early and gets them taken down for you.

See who is impersonating youBook a demo
  • 6m+lookalike domains checked every month
  • 75m+new website certificates checked every day
  • 400k+visits to customer websites checked for copies every month

Don't be next. We protect PE & Growth companies across US, UK, EU and APAC

  • Atombit
  • SimplRent
  • Amplify Analytix
  • Profusion
  • Paymove
  • Matobo Learning
  • SimpleShop
  • Omniplex Learning
  • ITESS
  • Sinovoltaics
  • SATCO

How a fake web address is used against you

A convincing fake of your company now takes minutes to set up, and AI writes the emails. Your email filters and firewalls protect your own systems, not the web addresses (domains) criminals register in your name.

FromKaren Mitchellk.mitchell@yourcompany-invoices.com
Toaccounts@yourcustomer.com
SubjectUpdated remittance details for invoice INV-20418

Hi Sarah,

Further to our call last week, please note that we have moved our receivables to a new factoring arrangement. All previous remittance instructions are now void.

Invoice INV-20418 ($125,000.00, due 28th) should not be settled to the account on the original invoice. Please reply to this email and I will send over the verified banking details for the new account today.

Kind regards,
Karen Mitchell
Sales Director, Your Company Inc

  1. The domain. The real company uses yourcompany.com. The fake adds a word to the name. "Finance", "invoices" or the full registered company name all look more official, not less.
  2. The ask. No bank details, no link, no attachment, so there is nothing for a filter to catch. It asks the customer to reply, and the bank details arrive in the next email.
  3. The person. Karen is a real employee. Her name, job title and signature were copied from the company website or her LinkedIn profile in about a minute. Nothing had to be hacked.

The company, domain, people and figures in this example are made up.

How we find fake web addresses and get them taken down

We watch for domain names, websites, email set-ups and security certificates made to look like yours, and alert you with the evidence.

Web addresses made to look like yours

These are lookalike domains: a swapped letter, .co instead of .com, a word such as -invoices added, or a letter from another alphabet. Most people will not spot the difference. Criminals use them to send fake invoices, copy your website and get your staff to log in to fake pages.

How monitoring works
Seven ways to fake yourcompany.com

Examples

  • yourcompnay.comLetters swapped
  • yourcompany.coDifferent ending
  • your-company.comHyphen added
  • yourcompany-invoices.comWord added
  • yourcompany.com.attacker.exampleStarts like yours
  • yourcornpany.comrn in place of m
  • yourсompany.comRussian letter for c

We check every hour and sort what we find

Every lookalike we watch for you is re-checked every hour, and we watch public certificate logs as new entries appear. We flag one when it is registered, gets a website or is set up to send email. Findings are sorted automatically: threats are alerted, doubtful ones go on a watch list, and the rest are marked safe. Nothing is sent to anyone until you confirm.

Lookalikes of yourcompany.com
Re-checked every hourExample

Alerted

  • yourcompany-invoices.comCan send email as you, blocklisted

On your watch list

  • yourcompany.coRegistered, no website
  • yourcompany-shop.comParked page

Marked safe

  • yourcornpany.comNot registered
  • yourcompany-careers.comYours

Nothing is sent to anyone until you confirm.

When one is used against you, we get it taken down

Once it is confirmed as a live attack, one click sends the evidence to up to 12 places that can act on it, all at once: the registrar, the host, the email provider, blocklists that spam filters use, browser warning lists and search engines. If they do not act, we chase them on a set schedule and tell you when it is offline, or if it stalls. Most takedowns take between 2 and 96 hours.

How a takedown works
yourcompany-login.com
Evidence sentExample

Can switch it off

Registrar · Hosting provider · Email provider · Abuse-report networkSent

Blocklists and threat feeds

Spam blocklist · Abuse database · Phishing feedSent
Malware feedSkipped: no malware

Browser warnings and search

Browser warning lists (2) · Search engines (2)Sent

11 of the 12 places applied. If nothing happens, we chase at 48 and 96 hours.

What you get, and who does the work

You should not need a security team to know when someone is pretending to be you. You choose who approves each takedown: you, or our analysts.

  • Pro: you approve each takedown

    Annual plan. 5 domains included, add more any time.

    • Every lookalike of your domains re-checked every hour
    • Unlimited takedowns, each approved by you with one click
    • Automatic follow-ups to the host, registrar and registry
    See pricing

    We give you the price on a call.

  • Enterprise: our analysts run it

    Annual plan. Unlimited domains and brands.

    • Our analysts check every alert before it reaches you
    • We run the takedowns and follow-ups for you
    • A dedicated team on your account
    See pricing

    We give you the price on a call.

The attacks it stops, and who they hit

Attacks we got taken down

Awards in 2026

Cyber Security Start-up of the Year at the teiss Awards, and a finalist at three more.

The teiss judges are practising security leaders. Read what they saw.

Free scan. No account, no card details.

Find out what's already targeting your domain

We check 150+ lookalikes of your domain and email you a report you could hand straight to your IT team.

  • Typos, other endings and added words, such as yourcompany-invoices.com
  • Which ones are registered, and which are set up to send email as you
  • The report in your inbox, usually in a couple of minutes. No account, no card details, no sales call.

When the scan is done we ask for a work email to send the report to. Gmail, Outlook.com and other free addresses are not accepted.

Prefer a conversation? Book a demo. 30 minutes is enough for us to give you a clear annual price for your domains.

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