Hi there @Markp1, you'll need to login to your plusnet member centre and change your settings within safeguard.
You can find safeguard by selecting 'My Perks' and then the 'Stay Safe Online' header.
Or alternatively via this direct link
Certain categories are set blocked as default but on safeguard you can remove them or add others to a blocked list.
In addition you can also add specific trusted sites or blacklist others by URL.
Hope this helps.
