FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
Article Id 189464

The URL filter is configured to allow only a specific website which in the example is All other websites would be blocked as the filter is configured with a * and type as 'wildcard'.

The article highlights that if a specific website is allowed by using URL filter, the websites may load correctly but the contents of that website may not work correctly.


The access to the website itself works as in the image below for but as can be seen, it may be difficult to load the contents of that specific website which in this case would be videos and images etc.
These are usually loaded from other sites, content delivery networks (CDN), so different FQDNs that are as above configured, blocked.




Some web sites have inside contents on the other sites such as videos on Youtube are in the domain
Try to access the web site then check on web filter log (WEBGUI -> Log & Report -> Web Filter) to see which URLs were blocked then allow them.



Also check on developer tools on web browser to see which sites are required when desired website is accessed.






In this example, allow other URLs as below screenshot (tested on Sep 2020) to make access and see contents as expected. \

Note that if there is some change on the destination website such as domain name of the content site was changed, correct URL filter again is necessary.