But how do you tell if a blocked resource is important from a rendering perspective?
Basic
In most cases, it’s probably a good idea to simply ask your developer this question. They created your site, so they should know it well.
Obviously, if the name of the script is called content.js or productListing.js, then it is probably related and should not be blocked.
Unfortunately, so far, URL inspection does not inform you of the sweden mobile database severity of blocked JS files. Previously Google Fetch and Render had such an option:
Advanced
Now, we can use Chrome Developer Tools for this.
For educational purposes, we will examine the following URLs::botbenchmarkingomyoushallnotpass.html
Open the latest version of Chrome and go to Chrome Developer Tools. Then move to the "Network" tab and refresh the page.
Finally, select the desired resource in our case, YouShallNotPass.js, right-click, and select "Block Request URL".
Refresh the page and see if anything important disappears. If so, then you should consider removing the corresponding rules from your robotsxt file.
Step 3: Fix JavaScript Errors Using the URL Inspection Tool
If you see that Google Fetch and Render is not rendering the page correctly, this may be due to a JavaScript error occurring while rendering.
The shoes I had just taken off flew away in the wind, over the hill.