Do Ad Blockers Remove UTM Tracking Codes?
16 September 2025

Do Ad Blockers Remove UTM Tracking Codes?

You’re clicking around the internet, reading blogs, shopping online, and maybe even checking out memes. Have you ever noticed the weird stuff at the end of some URLs?

It might look like this:

https://www.shoestore.com/sale?utm_source=newsletter&utm_medium=email&utm_campaign=summer_deals

That jumble of words and symbols? It’s called a UTM tracking code. Marketers use it to figure out where you came from before clicking that link.

But what happens if you’re using an ad blocker? Do those codes disappear? Let’s take a fun look at what’s really going on.

What Are UTM Codes, Anyway?

First, let’s break it down. UTM stands for Urchin Tracking Module. Sounds like a sea creature, right?

But it’s actually a way for tools like Google Analytics to track how people found your site. These codes are completely safe and don’t do anything shady by themselves.

Here’s how they work:

  • utm_source tells you where the traffic came from (like “facebook” or “newsletter”)
  • utm_medium tells the type of traffic (like “email” or “cpc”)
  • utm_campaign is the specific promotion or campaign that brought the visitor

These bits help websites understand what’s working in their marketing.

What Do Ad Blockers Actually Block?

Today’s ad blockers do more than block flashy banner ads. They also fight trackers, pop-ups, autoplay videos, and finger-printing scripts. That means they’re all about privacy and performance.

Popular blockers include:

  • uBlock Origin
  • AdBlock Plus
  • Ghostery
  • Privacy Badger

These tools work by using filter lists. If a site matches a rule on the list, it gets blocked. Think of it like a bouncer at a club, letting in the good stuff, and kicking out the creepy trackers.

So… Do They Remove UTM Codes?

This is where it gets interesting. The short answer is: sometimes — but not always.

Most basic ad blockers do not remove UTM codes. That’s because UTM parameters are not trackers by themselves. They’re just text in a URL. They don’t send any data until the page loads and the site reads it.

But some more advanced privacy tools do remove them. Let’s meet them.

The Privacy Pros That Remove UTMs

Here are some tools that clean up tracking codes, including UTMs:

  • Brave Browser: A privacy-focused browser that strips a variety of tracking links, including common UTM labels.
  • ClearURLs: A browser extension that removes known tracking parameters from URLs, including UTM codes and more.
  • Privacy Badger: Maintains a lightweight approach but may strip or block elements if they are considered trackers.

These tools aim to keep your links clean and your browsing private.

Imagine clicking on a link from your email, and when the page loads, all the extra UTM code is magically gone. That’s what these privacy tools do — like digital janitors. They clean the web without you even noticing.

Why Would You Want to Remove UTMs?

You might wonder — why bother?

Here are some reasons people want to clean their URLs:

  • Privacy: UTM codes can reveal where you came from and what email or ad campaign you clicked.
  • Clean URLs: Long, messy URLs full of tracking code are hard to read or share.
  • Cloning Links: If you send that same URL to a friend, the tracker keeps tracking — now their visit is mixed into your data!

People who care about privacy or just love tidy links often use these extensions to erase the clutter.

What About Site Owners?

From a website owner’s point of view, UTM codes are gold. They help understand where traffic comes from and which ads are paying off.

If privacy tools strip out UTMs, marketers lose that data. It’s like trying to solve a mystery without any clues.

But don’t worry — marketers still have other ways to track performance without knowing exactly which user clicked what. Tools like Google Analytics, cookies, and custom landing pages still offer insights — though less precise.

Do You Need to Worry?

Not really. If you’re a casual browser, UTM codes don’t harm your computer. They’re not viruses. They’re not even active trackers unless the website uses them that way.

But if you’re into privacy, using something like Brave or ClearURLs can help you feel a bit more secure online.

How Can You Tell If UTM Codes Are Being Removed?

It’s easy! Try this simple experiment:

  1. Open a private browser tab
  2. Paste a link that includes UTM parameters, like
    https://example.com?utm_source=twitter
  3. Open it and watch the URL bar
  4. If the “utm_source=twitter” part vanishes — your tool is cleaning it!

You can also play around with extensions like ClearURLs and check their logs to see what they removed.

The Bottom Line

So, do ad blockers remove UTM tracking codes?

Simple answer: Not usually. But some privacy-focused tools do.

Here’s a quick recap:

  • UTM codes are used for tracking where you came from
  • Most ad blockers do not remove UTM codes
  • Some privacy tools like ClearURLs or Brave do remove them
  • It’s not dangerous to leave them in, but some people prefer cleaner links

Should You Use a UTM Cleaner?

It depends on your level of privacy concern. If you don’t mind marketers knowing where you clicked from, there’s no need.

But if you’re a digital minimalist or privacy nerd, using a privacy tool can be a nice way to tidy things up.

It’s your web — clean it however you like!

And hey, next time you see “?utm_source=newsletter” at the end of a link, you’ll know exactly what it’s doing there.

Happy browsing — clean or messy!

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