> ## Documentation Index > Fetch the complete documentation index at: https://citodocs.prostack.host/llms.txt > Use this file to discover all available pages before exploring further. # IP Blocking > Block specific IP addresses or ranges from accessing your site IP blocking allows you to deny specific IP addresses (or a range of IPs) from visiting your site. This can be found under Site settings by clicking the 'Security' menu option. You'll see a list of existing IP blocks and their annotations. You can also edit or delete existing IP blocks. IP Block List ## Adding a new IP block Click the 'Add IP block' button. You'll be prompted to enter the IP you want to block, as well as an optional annotation. IP Block Add You can specify individual IPs or a range in CIDR notation. ## A note on Cloudflare If you use Cloudflare or another security service we will automatically detect the real visitor IP behind this service.