As a digital marketer, one of the most important things you need to do is measure and track traffic. With the right analytics tools, you can easily see which sources are sending you the most visitors and how they’re interacting with your content. But what if you have multiple subdomains? Do you have to set up separate tracking for each one? Fortunately, Google Analytics 3 (GA3) has made it easy to track traffic across subdomains. In this blog post, we will look at how to set up tracking for any number of subdomains using GA3 and some other helpful tips for getting the most out of your tracking data.

Step 1: Enable Referral Exclusion List

• If you have a referral exclusion list set up in Google Analytics, traffic from certain sites will not be tracked. This can be useful if you want to exclude traffic from your own site, or if you have a partner site that you don't want to track traffic from.
• To set up a referral exclusion list, go to the Admin section of Google Analytics and click on Tracking Info. Then, click on Referral Exclusion List. Here, you can add the domains that you want to exclude from referral tracking.

Step 2: Set up a Filter in Google Analytics

• If you want to track traffic from subdomains in Google Analytics, you'll need to set up a filter. To do this, log in to your Google Analytics account and go to the Admin section. In the View column, click on Filters. Then, click + New Filter.
• In the Filter Name field, enter a name for your filter (e.g., 'Subdomain Tracking'). In the Filter Type drop-down menu, select Custom filter > Advanced.
• In the Field A -> Extract A field, enter hostname . In the Field B -> Extract B field, enter (.*) . This will extract the root domain from any subdomain URL (e.g., blog.example.com). Make sure that the Output To > Field A -> Constructor field is set to Request URI .
• Click Save at the bottom of the page and you're all set! From now on, Google Analytics will track traffic from subdomains separately from traffic from your root domain.

Step 3: View Your Subdomain Traffic in Google Analytics

• Viewing your subdomain traffic in Google Analytics is easy. Simply login to your Google Analytics account and click 'All Traffic' in the left sidebar. Then, select 'Subdomains' from the dropdown menu.
• This will bring up a list of all the subdomains that are generating traffic to your main domain. You can then click on any of these subdomains to see detailed traffic information, including pageviews, unique visitors, average time on site, and more.
• Monitoring your subdomain traffic using Google Analytics is a great way to track the performance of your website and ensure that your visitors are having a positive experience.

In conclusion, tracking traffic in subdomains using Google Analytics 3 can be a powerful way to gain insights into your website's structure and performance. Whether you're looking for detailed data about users' behavior on different subdomains or want to compare two versions of the same page, GA3's filters and reports make it easy to gather relevant information. With the help of this article, we hope that you have a better understanding of how to track traffic in subdomains using Google Analytics 3 so that you can use it effectively for your own websites.