diff --git a/.env.example b/.env.example
index 092855e..6a4ca57 100644
--- a/.env.example
+++ b/.env.example
@@ -5,3 +5,4 @@ PLAUSIBLE_API_KEY="api_key_goes_here" # your plausible API key
 ALLOWED_ORIGINS="https://example.com" # allowed CORS origins
 RATE_LIMIT_MINUTES=15 # the amount of time in minutes to rate limit
 RATE_LIMIT_REQUESTS=100 # amount of max. requests
+NUM_PROXY_TRUST=1 # amount of proxies to trust, set 0 to disable
diff --git a/README.md b/README.md
index 66fd5bb..9897806 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ PLAUSIBLE_API_KEY="api_key_goes_here" # your plausible API key
 ALLOWED_ORIGINS="https://example.com" # allowed CORS origins
 RATE_LIMIT_MINUTES=15 # the amount of time in minutes to rate limit
 RATE_LIMIT_REQUESTS=100 # amount of max. requests
+NUM_PROXY_TRUST=1 # amount of proxies to trust, set 0 to disable
 ```
 
 Don't change the `PORT` and `METRICS_PORT` values when running in a Docker Container.
diff --git a/main.js b/main.js
index 683a003..260c741 100644
--- a/main.js
+++ b/main.js
@@ -69,6 +69,16 @@ app.use(
 );
 
 // Rate limiting
+
+const NUM_PROXY_TRUST = parseInt(process.env.NUM_PROXY_TRUST, 10) || 1;
+
+if (NUM_PROXY_TRUST > 0) {
+  app.set("trust proxy", NUM_PROXY_TRUST);
+} else {
+  // Do not set proxy trust if NUM_PROXY_TRUST is 0
+  return;
+}
+
 const RATE_LIMIT_MINUTES = parseInt(process.env.RATE_LIMIT_MINUTES, 10) || 15;
 const RATE_LIMIT_REQUESTS =
   parseInt(process.env.RATE_LIMIT_REQUESTS, 10) || 100;