diff --git a/docs/setup/server/security/index.md b/docs/setup/server/security/index.md
index 25255921..c27273ea 100644
--- a/docs/setup/server/security/index.md
+++ b/docs/setup/server/security/index.md
@@ -9,3 +9,5 @@ There are various security measures available to instance owners.
 ## [Registration Tokens](regTokens.md)
 
 ## [Rate Limits](limits.md)
+
+## [Blocking Proxies/VPN](ipanalysis.md)
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diff --git a/docs/setup/server/security/ipanalysis.md b/docs/setup/server/security/ipanalysis.md
new file mode 100644
index 00000000..8831d6c0
--- /dev/null
+++ b/docs/setup/server/security/ipanalysis.md
@@ -0,0 +1,15 @@
+# Blocking Proxies/VPNs
+
+Fosscord supports scanning the IP addresses of users who register in order to block proxies, VPNs, hosting providers, and various 'bad IPs'.
+Fosscord uses [GetIPIntel](https://getipintel.net/)'s free API to do so. You can read more about how it works there.
+
+You can enable this by setting, in your instance [config](../configuration/index.md):
+
+* `register_blockProxies` to `true`.
+* `general_correspondenceEmail` to a valid email address which can send and receive email. This is sent to GetIPIntel.
+
+!!! warning
+
+	GetIPIntel is a free service, and to prevent abuse has very tight request limits.
+	At the time of writing, you are allowed to make 500 requests per day, and no more than 15 requests per minute.
+	If you expect to exceed this with your instance we recommend not enabling it.
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