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Stop phishing from web addresses that look like yours

Criminals register a domain such as yourcompany-bookings.com, put up a fake booking, payment or login page, and send your customers or staff to it. We find those domains and get the ones used against you taken down. In our software-group case, a copy of the group’s website was offline before any customer was known to have used it.

Fake site already live?

Report a live attack

Free to report. No account needed. One of our team calls you back, usually the same working day.

Check for lookalike domains

Checks 150+ lookalikes of your domain in a couple of minutes and shows which are registered or can send email. No account, no card. We email the report to a work address, not Gmail or Outlook.com.

Out of hours, email security@defenddomain.com.

A lookalike that is not in use yet is not harmless.

A lookalike is often registered before anything is put on it, and a fake page can go up on a parked one in minutes. We watch each one from the day it appears, so it is caught when it is switched on, not when the first customer reports it.

Three kinds of phishing, and the one we cover

Phishing is any message or page that pretends to be someone you trust, to get money, passwords or card details. Only one kind runs on an address made to look like yours.

Not covered

Someone fakes your exact address

Email is sent as @yourcompany.com without your permission, to your customers or staff.

Stopped by your DMARC setting.

Not covered

General phishing sent to your staff

Phishing emails from unrelated addresses that land in your staff's inboxes.

Your email filter and staff training are the defence here.

Where we help

A web address like yours

A fake page or mail server on an address made to look like yours, whether it is aimed at customers, staff or suppliers and however the link reaches them.

Covered whichever registrar sold the address and wherever it is hosted.

Phishing we find

Each of these runs on a web address made to look like the real company's.

  • Fake websites

    Fake booking and payment pages

    yourcompany-bookings.com

    Your booking or checkout page copied onto a lookalike domain, reached from an email or text about a booking, a refund or an unpaid balance.

  • Fake logins

    Fake login pages

    yourcompany-login.com

    A copy of your login page on a lookalike of your domain, used to collect passwords.

  • Fake websites

    Fake help and support pages

    yourcompany-support.com

    A copy of your support page that tells customers to call a fake number or install remote-access software.

  • Text messages

    Links sent by text message

    yourcompany-delivery.com

    A text that sends people to a lookalike of your domain, as the fake recruiters in our recruitment-scam case did by SMS and WhatsApp. We cannot stop the text; we go after the site it points to.

Who in your company this helps

  • Marketing and customer teams

    Know when a fake site uses your name

    You hear when a lookalike of your domain shows a copy of your site, so you can warn customers and point them to the real one.

  • IT and security

    No more checking reported links by hand

    Each alert shows the lookalike, what it is doing and the evidence pack, so you can confirm it and approve a takedown.

  • Owners and directors

    One person can run it

    On Pro, someone on your side reads each alert and approves takedowns with one click. On Enterprise, our analysts do it for you.

  • Risk and compliance

    A record of what was found and done

    Each threat keeps its status, notes and evidence from first alert to offline, so you can show your board or insurer what happened.

What your current tools do not see

Each of these is worth having. None of them watches a web address that a criminal owns.

“We have DMARC and SPF”

Good. They stop criminals sending email as your exact domain. A criminal who registers a lookalike sets up DMARC and SPF for that domain too, so its email passes those checks. We watch the lookalikes, and check DMARC, SPF and DKIM on your own domains every day.

What DMARC does not cover

“We use an email filter”

It checks mail coming into your company. It does not see a fake page sent to your customers by text, by an ad or to their personal email. We find the page however its link reached them, and get it taken down.

What email filters miss

“Our staff are trained”

Training helps. But a padlock does not mean a site is genuine, and a phone often hides most of the web address. A good copy fools careful people. We report the copy to the browser warning lists, which put a red warning in front of anyone who taps the link, and to its registrar and host.

What the padlock really means

“We already bought similar domains”

Worth doing for the obvious ones. There are 240+ domain endings and endless word combinations, so nobody can buy them all. We watch the ones you have not bought.

Why buying lookalike domains is not enough

How we find a phishing site and get it taken down

Give us your domains. Watching lookalikes and certificates needs nothing else; the website marker is optional.

Step 1

We list the likely fakes

Around 500 web addresses per domain: typos, your name plus a word such as -login or -bookings, letters that look alike, and other endings such as .co or .net.

Step 2

We re-check them every hour

Every lookalike on your list, parked or not. We also watch 100+ public certificate logs as entries appear, for new certificates on names that look like yours. In our software-group case, the certificate for the copied site was matched within seconds of being logged.

Step 3

We look for copies of your site

We search the web for copies of your site’s wording. The website marker (optional) is a small script or a 1×1 image on pages you choose, which tells us when a copy of the page loads somewhere else.

Step 4

You confirm, we report and follow up

You approve with one click. We send the evidence to up to 12 places at once, including the registrar, the host, blocklists, browser warning lists and search engines, then chase them automatically.

What a phishing alert shows you

The lookalike, when it was registered, whether it shows a website or can send email, and a screenshot of the page. The evidence pack adds who registered the domain, where it is hosted and who handles its email, each with the time it was captured.

Under the evidence are two buttons: take it down, or mark it as yours. We check every hour whether it is still online and tell you when it goes down. After that we keep watching and alert you if it comes back.

Alerts arrive by email, or in Slack, Microsoft Teams, SMS or a webhook. IT teams can also send them to Splunk, Microsoft Sentinel or Wazuh.

New threat
CriticalExample
yourcompany-bookings.com

Impersonating yourcompany.com

Copies your booking page.

Threat signals

Name built to deceive
Your name plus “bookings”
Copies your website
Your booking page and logo
Certificate issued
Public certificate logs
Take it downThis is ours

What our software-group case looked like

Case study, early 2026

Cloned website taken down

A European software and AI services group, backed by a private equity firm and buying other companies. This is a copied-website case, the nearest we have published to a phishing site. No follow-up was needed after the takedown.

Read the case study
What happened
Offline
  1. Weeks after an acquisition was announcedIts exact name registered on another ending, with a near-identical copy of the site
  2. Flagged at registration; the certificate was matched within seconds of being logged
  3. One-click takedown: the evidence went to ten places
  4. Offline before any customer was known to use it

From the case. Names changed.

Questions about phishing protection

Usually within the hour of a page or mail server appearing on it.

Some of them. Copies of your site or its wording are found wherever they load: in our consultancy case, a full copy of the company’s website sat on a free hosting subdomain with no lookalike domain behind it, and was found by the certificate logs, a search for its wording and the website marker. A fake page on an unrelated address that does not copy your site is much harder for us to find.

See what we would find for your domains

In a 30-minute demo we show you the lookalikes of your domain that exist today.

  • Which lookalikes of your domain exist now, and which show a website or can send email
  • What an alert looks like and who on your side would read it
  • A clear annual price for your domains

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