diff --git a/src/crawl.rs b/src/crawl.rs
index f7833fd..018ee4f 100644
--- a/src/crawl.rs
+++ b/src/crawl.rs
@@ -1,6 +1,6 @@
 use crate::federated_instances::GetSiteResponse;
 use crate::node_info::NodeInfo;
-use crate::REQUEST_TIMEOUT;
+use crate::{EXCLUDE_INSTANCES, REQUEST_TIMEOUT};
 use anyhow::anyhow;
 use anyhow::Error;
 use futures::try_join;
@@ -21,7 +21,9 @@ pub async fn crawl(
     let mut failed_instances = 0;
     while let Some(current_instance) = pending_instances.pop_back() {
         crawled_instances.push(current_instance.domain.clone());
-        if current_instance.depth > max_depth {
+        if current_instance.depth > max_depth
+            || EXCLUDE_INSTANCES.contains(&&**&current_instance.domain)
+        {
             continue;
         }
         match fetch_instance_details(&current_instance.domain).await {
diff --git a/src/lib.rs b/src/lib.rs
index bf7e6e8..ac7af40 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,3 +7,9 @@ pub mod node_info;
 pub const REQUEST_TIMEOUT: Duration = Duration::from_secs(10);
 pub const DEFAULT_START_INSTANCES: &str = "lemmy.ml";
 pub const DEFAULT_MAX_CRAWL_DEPTH: &str = "1";
+pub const EXCLUDE_INSTANCES: &'static [&str] = &[
+    "ds9.lemmy.ml",
+    "enterprise.lemmy.ml",
+    "voyager.lemmy.ml",
+    "test.lemmy.ml",
+];