After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
How to block Rogerbot From Crawling UTM URLs
-
I am trying to block roger from crawling some UTM urls we have created, but having no luck. My robots.txt file looks like:
User-agent: rogerbot Disallow: /?utm_source* This does not seem to be working. Any ideas? -
Shoot! There may be something else going on. Give us a shout at help@moz.com and we'll see if we can figure it out!
-
FYI - I tried this and it did not work. Rogerbot is still picking up URL's we don't need. It's making my crawl report a mess!
-
The only difference there is the * wildchar. The string with that character will limit the crawler from accessing any URL with that string of characters in it.

-
What is the difference between Disallow: /*?utm_ and Disallow: /?utm_  ?
-
Hi there! Tawny from the Customer Support team here!
You should be able to add a disallow directive for that parameter and any others to block our crawler from accessing them. It would look something like this:
User-agent: Rogerbot
Disallow: ?utmetc., until you have blocked all of the parameters that may be causing these duplicate content errors. It looks like the _source* might be what's giving our tools some trouble. It looks like Logan Ray has made an excellent suggestion - give that formatting a try and see if it helps!

You can also use the wild card user-agent * in order to block all crawlers from those pages, if you prefer. Here is a great resource about the robots.txt file that might be helpful: https://moz.com/learn/seo/robotstxt We always recommend checking your robots.txt file with a handy Robots Checker Tool once you make changes to avoid any nasty surprises.

-
Skyler,
You're close, give this a shot:
Disallow: /*?utm_
This will be inclusive of all UTM tags regardless of what comes before the tag or what element you have first.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Explore more categories
-
Chat with the community about the Moz tools.
-
Discuss the SEO process with fellow marketers
-
Discuss industry events, jobs, and news!
-
Chat about tactics outside of SEO
-
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
-