A file is missing for the website.
What does this mean?
Either a file which the website needs is missing, or a webpage is incorrectly saying it needs a file that it does not.
Because the user’s browser will attempt to download the missing file, these can slow down a website – sometimes significantly.
How do we do this?
Identify whether the file is missing and needs to be uploaded, or whether the pages using it are incorrect and fix them.
To view a page with the missing file on it, click on the number in the Pages column (the number should be a link).
If you have trouble finding the broken file in your page, we recommend using Google Chrome, and following these steps:
- View the page with the missing file(s)
- Right click anywhere on the page
- Click Inspect element
- Click Resources at the top of the new window which appears
- You may be asked to confirm whether you wish to enable resource tracking the first time. Do so if necessary.
- All resources used by the page will appear. If you view the list on the left hand side, missing resources are highlighted with a red circle next to them.
Why does a broken file have a size?
Downloading a broken file still requires some transfer time, typically to download a page containing an error message. As this does affect the load time for the page, it is counted towards the size of the page.