diff --git a/crates/symbolicator-js/src/bundle_lookup.rs b/crates/symbolicator-js/src/bundle_lookup.rs
index e3a15b010..23196399c 100644
--- a/crates/symbolicator-js/src/bundle_lookup.rs
+++ b/crates/symbolicator-js/src/bundle_lookup.rs
@@ -4,9 +4,11 @@ use std::time::Duration;
 use symbolicator_service::caches::ByteViewString;
 use symbolicator_sources::RemoteFileUri;
 
+use crate::interface::ResolvedWith;
 use crate::lookup::{CachedFileEntry, FileKey};
 
-type FileInBundleCacheInner = moka::sync::Cache<(RemoteFileUri, FileKey), CachedFileEntry>;
+type FileInBundleCacheInner =
+    moka::sync::Cache<(RemoteFileUri, FileKey), (CachedFileEntry, ResolvedWith)>;
 
 /// A cache that memoizes looking up files in artifact bundles.
 #[derive(Clone)]
@@ -33,11 +35,11 @@ impl FileInBundleCache {
             .time_to_idle(Duration::from_secs(60 * 60))
             .name("file-in-bundle")
             .weigher(|_k, v| {
-                let content_size = v
-                    .entry
-                    .as_ref()
-                    .map(|cached_file| cached_file.contents.len())
-                    .unwrap_or_default();
+                let content_size =
+                    v.0.entry
+                        .as_ref()
+                        .map(|cached_file| cached_file.contents.len())
+                        .unwrap_or_default();
                 (std::mem::size_of_val(v) + content_size)
                     .try_into()
                     .unwrap_or(u32::MAX)
@@ -55,12 +57,12 @@ impl FileInBundleCache {
         &self,
         bundle_uris: impl Iterator<Item = RemoteFileUri>,
         mut key: FileKey,
-    ) -> Option<CachedFileEntry> {
+    ) -> Option<(RemoteFileUri, CachedFileEntry, ResolvedWith)> {
         for bundle_uri in bundle_uris {
             // XXX: this is a really horrible workaround for not being able to look up things via `(&A, &B)` instead of `&(A, B)`.
             let lookup_key = (bundle_uri, key);
-            if let Some(file_entry) = self.cache.get(&lookup_key) {
-                return Some(file_entry);
+            if let Some((file_entry, resolved_with)) = self.cache.get(&lookup_key) {
+                return Some((lookup_key.0, file_entry, resolved_with));
             }
             key = lookup_key.1;
         }
@@ -71,7 +73,13 @@ impl FileInBundleCache {
     ///
     /// Files are inserted under a specific bundle so that e.g. files with the same
     /// `abs_path` belonging to different events are disambiguated.
-    pub fn insert(&self, bundle_uri: &RemoteFileUri, key: &FileKey, file_entry: &CachedFileEntry) {
+    pub fn insert(
+        &self,
+        bundle_uri: &RemoteFileUri,
+        key: &FileKey,
+        resolved_with: ResolvedWith,
+        file_entry: &CachedFileEntry,
+    ) {
         let mut file_entry = file_entry.clone();
         if matches!(key, FileKey::SourceMap { .. }) {
             if let Ok(cached_file) = file_entry.entry.as_mut() {
@@ -80,6 +88,6 @@ impl FileInBundleCache {
             }
         }
         let key = (bundle_uri.clone(), key.clone());
-        self.cache.insert(key, file_entry)
+        self.cache.insert(key, (file_entry, resolved_with))
     }
 }
diff --git a/crates/symbolicator-js/src/lookup.rs b/crates/symbolicator-js/src/lookup.rs
index 8fcba4ffc..88d237383 100644
--- a/crates/symbolicator-js/src/lookup.rs
+++ b/crates/symbolicator-js/src/lookup.rs
@@ -967,10 +967,18 @@ impl ArtifactFetcher {
         }
 
         // First see if we have already cached this file for any of this event's bundles.
-        if let Some(file_entry) = self
+        if let Some((bundle_uri, file_entry, resolved_with)) = self
             .files_in_bundles
             .try_get(self.artifact_bundles.keys().rev().cloned(), key.clone())
         {
+            if let Some(Ok((_, bundle_resolved_with))) = self.artifact_bundles.get(&bundle_uri) {
+                self.metrics.record_file_found_in_bundle(
+                    key.as_type(),
+                    resolved_with,
+                    *bundle_resolved_with,
+                );
+            }
+
             return Some(file_entry);
         }
 
@@ -994,7 +1002,12 @@ impl ArtifactFetcher {
                         entry: CachedFile::from_descriptor(key.abs_path(), descriptor),
                         resolved_with: ResolvedWith::DebugId,
                     };
-                    self.files_in_bundles.insert(bundle_uri, key, &file_entry);
+                    self.files_in_bundles.insert(
+                        bundle_uri,
+                        key,
+                        ResolvedWith::DebugId,
+                        &file_entry,
+                    );
                     return Some(file_entry);
                 }
             }
@@ -1020,7 +1033,12 @@ impl ArtifactFetcher {
                             entry: CachedFile::from_descriptor(Some(abs_path), descriptor),
                             resolved_with: *resolved_with,
                         };
-                        self.files_in_bundles.insert(bundle_uri, key, &file_entry);
+                        self.files_in_bundles.insert(
+                            bundle_uri,
+                            key,
+                            ResolvedWith::Url,
+                            &file_entry,
+                        );
                         return Some(file_entry);
                     }
                 }