Creating a custom domain filtering category using the Block List
Overview
The Block List is a feature of Cyber Shield Domain Filtering. The Block List enables you to block a defined list of domains, which results in a custom domain filtering category.
You can add domains to the Block List either individually or in batch using a text (.txt) file.
Just as you can disable (turn off) the blocking provided by a preset domain filtering category, you can disable the Block List.
Note: If you are using both Allow List and Block List, refer to the interaction between blocked and allowed domain names
Steps
- From the Shield page, click the pencil icon to access the Domain Filtering blocking settings.
- Click the Block List tab.
- Add blocked domains to the Block List.
- To add individual domains, click Add.
- Matching entries appear as you type.
- A warning appears if you specify a domain that exists in the Allow List.
- To batch add domains, upload a text file with multiple domains.
- The text file must be formatted to contain each domain in its own row.
- Domain names can’t contain asterisks.
- When domain validation fails on an uploaded text file, an error icon displays with the domain, along with a description of the validation failure. Failed validation domains aren’t added to the Block List and must be fixed manually.
- Any existing entries are overwritten by the entries in the uploaded file.
- To add individual domains, click Add.
- To download the domain names in the Block List as a text file, click the Download list hyperlink at the bottom right.