Click Fraud in Affiliate Marketing: Top Prevention Tips

6 min read
June 6, 2021
Article Illustration - affiliate marketing

A recent report from Adobe says 28% of web traffic comes from non-human sources. Non-human traffic is accountable for most of click fraud.

The reputation of search engines suffers significantly because of it, so search engines like Google are constantly working on measures to suppress illegal actions of click fraud.

This search engine can control several indicators at once: the IP address from which the ad was clicked, double-clicking, “winding up” clicks in a short period.

Unfortunately, only a few click frauds are found, since fraudulent methods are regularly updated.

Already familiar with click fraud? Skip to the main must-read parts: click fraud prevention tips for affiliate marketers or TL;DR Infographic. 

What is Click Fraud?

Click Fraud is one of the most deleterious phenomena for digital advertisers. 
Its action is multiple and carried out with malicious intent.

Click fraud is when a person, computer program, or generated script attacks advertisers by repeatedly clicking on a PPC ad to increase ad spend, lower conversion rates, and distort performance data (eventually, it also negatively impacts the ROI).

How does Click Fraud work?

Click fraud is clicking on an online ad, usually with malicious intent. 
This could be due to “draining” the advertiser’s budget in an attempt to remove ads from search results or redirect ad spend to third parties or scammers.

These fake clicks on your paid ads can cost anywhere from a few pennies to over a hundred dollars, depending on the CPC (cost per click) of your ad.
Click fraud can affect any form of paid advertising, including paid search results, banner ads, video ads, or native ad content.

How to detect fraudulent clicks?

Have a careful look at your website metrics. When you see a spike in traffic, check your analytics right away.
You will probably see something like this: irregular difference between current and average values. You might have been attacked, if you see one or few of these signs:

Click Fraud in Affiliate Marketing

It’s a fast-growing and hard to control problem.
Fake leads and bot scams significantly affect many factors, from cost per click to search engine reputation.

Scammers have expanded their reach a lot over the past few years, creating fake installations of software and mobile apps, and even automating the submission of fake user information in CPL lead generation campaigns.

Click fraud has been increasing the impact on advertising every year.
In percentage terms, invalid clicks can reach from 20% to 60% of all clicks on your ads, significantly affecting your ROI.

Click Fraud Types and Who is Doing It

Blog Illustration - who is sending the Fraud?
Here are some possible sources of fraudulent clicks.

Who needs this?

Typically, the main scammers can be divided into four different categories.


You might be attacked by competitors who target your same keywords. click for more info
Since they understand that advertisers have to pay for every click they receive, a common tactic for some competitors is to click on other companies' ads and spend their money.


Many websites advertise for profit through networks like Google Adsense. click for more info
Since publishers earn interest on every click on their client's ads, many have an incentive to click on their ads to increase their earnings and income.


Not all clients, when clicking on ads, do it with a good intent.
click for more info
Some disgruntled shoppers deliberately click on a company's ads to get revenge on them for poor service, poor support, or a substandard product.

Fraud "rings"

In recent years, entire schemes have been built around click fraud. click for more info
Using multiple IP addresses, scammers click on the same ads repeatedly, spending the advertisers' budget. On a large scale, this can be very beneficial and cost advertisers millions.

How to Prevent Click Fraud in Affiliate Marketing

Although click fraud is a rapidly growing problem, there are several ways to avoid fraud and protect your advertising.

Use specific and highly relevant search terms. Scammers usually don’t do good keyword research and use the most basic and popular search terms for clicks. Using well-defined specific keywords (including long-tail keywords) is your assistant in the fight against fraudsters.

Use specific countries for the target. Some countries have a bad reputation for click fraud. There is a list of countries that are not recommended for launching ads, as there the click-fraud percentage is several times higher. Therefore, it’s best to limit your targeting by location and exclude those countries that are more likely to waste your budget.

Track your competitors. As we wrote earlier, one of the primary sources of click fraud can be your competitors’ ads. Therefore, if you are sure that the clicks are coming from competitors’ offices, then the easiest way to stop them is to use geolocation exclusion.

Use software to protect your ads from Click Fraud. There is software that detects fraud, blocks it, saves your money, and improves your ROI. PPC Shield has an advanced filter to detect click frauds; after detecting, the algorithm can restrict malicious IP addresses from accessing your advertisements and thereby save your budget.

2024 Best Protection Practices for Affiliates

Illustration: how analytic tools help to protect ads from Click Fraud
You can protect your ads by monitoring these parameters.

To prevent click fraud, it is necessary to improve the monitoring system for campaigns using web analytics tools.
Services should analyze questionable clicks and adapt to new fraud methods based on the following criteria:

Yellow & Green time icon

User’s time on site – transitions, where the user left the page immediately after clicking on the link or banner, fall under the status of doubtful.

Green Icon - choosing an option

The number of clicks from one IP address. The more such clicks, the more likely it is to be a scam.


Session cookie. Scammers do not work with programs that use cookies, in order to not leave trace of their fraudulent activities.

User icon

User actions on site, such as mouse movements and page scrolling. With the help of video monitoring tools, you can observe user’s behavior on the site and, in case of the absence of human-like behavior, classify such situation as click fraud.

The Best Click Fraud Monitoring Tools

The easiest way to stop click fraud is to use fraud prevention software. Acting as protection against fraud, it stops intruders and detects suspicious activity that you can check through software. This is the most cost-effective solution, especially if you spend more than a few hundred thousand dollars a month on PPC ads.

PPC Shield click fraud prevention software is easy to use, actively prevents your paid ads from being clicked by fraudsters, and provides you with real-time data.

Summary: What You Need To Know as an Affiliate

Unfortunately, click fraud will continue to evolve.

Don’t worry! Here are our tips to stop click fraud:

Monitor your ad traffic and watch for unexpected traffic spikes, high bounce rates, and low conversions.

Remove bids for keywords that attract high traffic and low conversions.

Add IP addresses to the blacklist and experiment with the timing of your ads.

Use negative keywords to prevent your ad from showing on numerous low converting searches.

Automate click-fraud prevention with the industry-leading protection software, PPC Shield. Upon signing up, you will be able to see the number of click fraud attempts on your ads and make better data-driven decisions for your future PPC campaigns.

TL;DR Infographic

Save it and share with fellow affiliates who also need to know about click fraud.

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