How to block referrer spam referrer spam

You’re probably wondering what block is and how you’re getting so much referral traffic from them. I’m here to answer both questions. is a domain name owned by uses the domain name to spam your Google Analytics reports with fake referral traffic, a type of traffic known as ghost traffic.

The reason why you’re getting referral traffic from is simple. Semalt promotes their website and services by getting your attention and persuading you to visit the URL in your browser. This is how the questionable online business promotes themselves.

If you visit you will be forwarded to another site such as This new site allows you to submit your own website for a report. If you do so, you will be forwarded to[search term]&ref=test2 and then to[project ID].

Semalt has been fully engulfed in using the referrer spam indexing method as a way to advertise themselves for many years. The company is notorious for spamming Google Analytics with fake data and they don’t seem to be slowing down any time soon.

Is referrer spam harmful?

Referrer spam may seem harmless or simply a nuisance but it can actually ruin your Google Analytics data by filling it with fraudulent information. For example, fake visitors from appear to visit only one page on your site and leave your site from the same page. This creates a 100% bounce rate and measures to 1 page per session. Visitors also average 00:00:00 length of a session, among other changes to various site metrics.

How to create a filter

Here’s how to create a campaign source filter to block all referral traffic in Google Analytics.

  1. Open your Google Analytics account and go to Admin > Filters (on the right side in the VIEW section).
  2. Click the + ADD FILTER button.
  3. Create a Filter Name such as “ filter” or “Semalt filter.”
  4. Select the Custom Filter Type.
  5. In Filter Field, find and select Campaign Source.
  6. In the Filter Pattern text box, add and click the blue Save button on the bottom of the web page.

To add multiple domain names to the same filter you can make a Filter Pattern similar to this with a | between each URL: | Example\.com |

Sean Doyle

Sean Doyle is a tech author and engineer with over 20 years of experience in cybersecurity, privacy, malware, Google Analytics, online marketing, and other topics. Sean's content has been featured in numerous publications.

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.