How to block referrer spam in Google Analytics referrer spam tutorial referrer spam targets your Google Analytics account with fake referral traffic in order to grab your attention and make you curious enough to visit the address in your browser. Visitors measured to be referred from do not actually step foot on your website’s server or visit a page on your site since referral traffic from is fake. It will only appear in your Google Analytics data. referrer spam in google analytics

The domain name is owned by who owns other domain names they use in a similar manner. is a questionable online marketing website who purchases a new domain name each business day and uses it to spam Google Analytics accounts around the world with fake referral in order to ‘promote’ themselves.

The downside to this is that it can have negative implications on your site’s Google Analytics data. Referral traffic from will create a 100% bounce rate and be referred to your website from a page that doesn’t exist either. If you visit you will be forwarded to another website such as,,,, or other. The page you are forwarded to contains a text field where you can submit your website for an audit and if you submit your site you will be forwarded to[search term]&ref=test2 and then to[project ID].

We recommend that you avoid providing Semalt with your email address or a way to contact you because you will receive a large number of deceptive spam messages from Semalt each day.

Is referrer spam harmful?

Referrer spam may seem harmless or somewhat of a nuisance but it can actually ruin your Google Analytics data by manufacturing incorrect 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.

Also, keep in mind that no one was actually referred to your website from No one used your bandwidth or took a step onto your site’s server, so referral traffic is just filling your reports with false information.

Create a filter to block

  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.

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