What is ad hijacking? How a brand's ad gets copiedWhat is ad hijacking? How a brand's ad gets copied

If you've searched for “ad hijacking”, you've probably seen something like this. A search for your own name shows an ad headed “Yourbrand® Official Site | Free UK Delivery”, with yourbrand.example beneath it. It reads like yours. It leads to your shop. And your paid-search team says it isn't theirs.

This page uses the word because it's the one people search for. Everywhere else, Godotoro describes what was seen: an ad showing your address under another advertiser. Whether any particular ad is outside what your terms allow is a question for your records and your network, and often the answer is ordinary.

What the term describes

• An ad on searches for a brand's name, often with the brand's own headline or something very close to it.
• The brand's web address as its display URL, because its final URL really is the brand's site.
• An affiliate's tracking behind it, so a sale through the ad is credited to a publisher and carries commission.
• An account that isn't the brand's, which About this advertiser and the Ads Transparency Center will name.
• Often, timing or placing that keeps it away from the brand's own checks: evenings, weekends, other cities, phones.

In the trade it's a kind of direct linking: an ad whose click goes straight to the brand's site, not to a page of the publisher's own. Direct linking itself is common and often permitted. “Hijacking” is what people call it when the brand didn't agree, when the ad copies the brand's own, and when the brand's ad loses its place.

How it works

Every Google Ads text ad has a final URL, the page a click lands on. The display URL isn't typed in: Google takes its domain from the final URL, and only the path after it, such as /official, is free text. So an advertiser whose final URL is https://yourbrand.example/ shows yourbrand.example. Nothing is disguised. The ad really does lead to your shop.

The affiliate's network link goes in the tracking template: an address Google calls when the ad is clicked, with the ValueTrack parameter {lpurl} standing in for the final URL. It might read https://trk.network.example/c?pid=41207&url={lpurl}. Google's Destination requirements ask that the display domain match the final URL, that the final URL not redirect to another domain, and that the tracking template lead to the same content. A template that ends on your page meets all three, so the ad can pass review.

Under parallel tracking, mandatory on Search since 30 October 2018, the shopper goes straight to your page while the tracking template loads in the background. The address bar shows your shop and a gclid. The network can still credit the sale, typically through its tag on your page reading the gclid or identifiers in the ad's final URL suffix.

Then the auction. Since 14 April 2025 Google runs the top and bottom ad locations as separate auctions, and in each it shows one ad per business or site. Google says its rule against several ads leading to the same or similar pages applies particularly to affiliates and resellers. An affiliate's ad leading to your shop competes with your own ad for the same place. If it wins the top, yours can be the one left out of it.

What it costs

Imagine fifty orders like it in a month: £130 in commission and fees on people already searching for your name. And your own price can rise. Your actual CPC is the least you need to beat the ad ranked below yours, so another strong bidder on your name raises it with nothing changed in your account.

Where it shows in your own data

• Google Ads, on your exact brand keywords: Search lost IS (rank) rising, Search abs. top IS falling, and Avg. CPC climbing while Change history shows no change of yours.
• GA4: once every Google Ads account of yours is linked, google / cpc sessions whose Google Ads campaign is (not set), landing on brand pages with a gclid beside parameters your team never set, such as pid=41207.
• Your network: a publisher whose sales follow searches for your name, very short times from click to order, and landing URLs carrying a gclid.
• The Ads Transparency Center: advertisers whose ads point to your address that you can't match to your own accounts, agency or partners.

What Google's policies say

Trademarks. Google doesn't restrict trade marks used as keywords, or in the domain of a display URL. A complaint can restrict a mark in ad text, for advertisers you identify by their URLs. That can take “Yourbrand®” out of the headline. It can't stop the bidding, and the trade mark complaint guide covers what it can and can't change.

Unfair advantage. Among what it doesn't allow, this policy lists affiliates advertising on Google Ads against the rules of the affiliate programme they're in, and trying to show more than one ad for the same business in one ad location. Google warns at least seven days before suspending an account under it. It's the policy that fits, and it rests on your terms: they have to exist, say what's not allowed, and have reached the publisher.

Misrepresentation. Where an ad's text implies it's the brand itself, Google's Misleading representation policy covers implying an affiliation with another brand without its knowledge or consent.

How to look into it, step by step

1. Rule out your own side first: list every Google Ads account your company and agency run, and link each to GA4.
2. Record the sighting without clicking: the date and time with the time zone, the search, the place, the device, the ad as it read and its position. Open About this advertiser from the ad's three-dot icon and note the name and country.
3. Search your web address in the Ads Transparency Center with the region set to United Kingdom, and note each advertiser's AR id and its ads' Last shown dates.
4. Read your brand campaign's Search lost IS (rank), Search abs. top IS and Avg. CPC by week, beside Change history.
5. In GA4, list the google / cpc sessions with campaign (not set) on brand landing pages, with their full landing URLs.
6. Line those up with your network's commissioned orders on the same days, by order reference.
7. Check your terms say what you think they say about direct linking, your domain as a display URL and bidding on your name.
8. Send your network the sighting, the advertiser Google names, the order references and the clause, before the validation window on those sales closes.

The ordinary explanations

• Your own second Google Ads account, an old one never closed, or one another team at your company runs.
• Your agency, testing a campaign or running one everyone forgot about.
• An approved partner allowed to link directly or to bid on your name, perhaps agreed before your time.
• A publisher that was never sent your terms, or terms that never mentioned direct linking.
• A sub-network's publisher who didn't know your rules.
• A campaign still running after the arrangement behind it ended, or a final URL pasted into the wrong ad.

If none of those fits, Google's routes are the next step, and the guide to reporting an ad goes through them. Looks like yours covers the same mechanics as a lesson, with the film.