What is a Page Not Found/404 page?
A Page Not Found/404 error occurs when a web server cannot find a web page at the provided URL.
This can happen if:
- The wrong page URL was used, e.g., it contains a typo
- The resource was deleted and it’s no longer available on the server
- The website owner has changed the URL (web address) to the resource
- The website was misconfigured and the server can’t find the resource
Quick Report for Page Not Found
- In Reports, drill down to Pages and Screens under Engagement.
Reports > Engagement > Pages and screens - Use Page title and screen name and Page path and screen class
At the top of the table, make sure Page title and screen name is listed. Use the drop-down arrow to select if Page title and screen name is not selected. For the second dimension, use the drop-down list to search for the Page path and screen class. - In the search field above the table add Page not Found
In the empty field, you’ll want to add the full-page title.
“Page not found | [your website name] | Washington State University”
Example: Page not found | Web Communication | Washington State University

GA4 Explore Report
How to identify and fix Page Not Found/404 pages

- Login in to your Google Analytics account
- Select your preferred GA4 account from the dropdown menu located in the top ribbon of your dashboard page
- Go to the Explore option in left hand menu

- Select Blank/New report

- Enter a title for your report under Exploration Name.
- Go down to the Dimensions and select the plus icon (+)
- Go to the settings section of the report
- Under Rows select the +Drop or select dimensions
- Select Page path and screen class and page referrer

- Go to the Values section
- Select +Drop or select metric
- Select Event count

- Go to the Filters section. You will create two separate filters.
- For the first filter, select +Drop or select dimension or metric
- Select Event Name
- Under conditions*, select exactly matches
- In the Enter Expression box, select page_view, then select apply
- For the second filter, select +Drop or select dimension or metric
- Select Page title
- Under Conditions*, select contains
- In the Enter Expression box, select page_view Page Not Found, then select Apply
- For the first filter, select +Drop or select dimension or metric


- Sharing the report (shares with anyone who has access to the GA4 account, but the only thing they’ll be able to change is the date range) or Export the data in Google Sheets, TSV, CSV, PDF, and/or PDF (all tabs).

Additional Resources
Export and share reports
Google’s information on exporting and sharing reports.
Looker Studio: Page Not Found Template
Make your own copy of this template.
