> For the complete documentation index, see [llms.txt](https://browsify.gitbook.io/browsify-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://browsify.gitbook.io/browsify-docs/understanding-key-terms/what-is-an-isp.md).

# What is an ISP?

An **ISP** (*Internet Service Provider*) is a company that provides internet access (e.g., AT\&T, Viettel). **Browsify** allows you to block specific ISPs known for fraudulent activity, such as those associated with bot farms.