diff --git a/bin/archiver.py b/bin/archiver.py
index dbb157c1..fac00b04 100755
--- a/bin/archiver.py
+++ b/bin/archiver.py
@@ -129,7 +129,7 @@ class Archiver(AbstractManager):
         for index in self.archived_captures_dir.rglob('index'):
             with index.open('r') as _f:
                 for uuid, dirname in csv.reader(_f):
-                    for har in (index.parent / dirname).glob('*.har'):
+                    for har in (index.parent / dirname).rglob('*.har'):
                         if not har.exists():
                             continue
                         with har.open('rb') as f_in:
diff --git a/bin/background_indexer.py b/bin/background_indexer.py
index b5689f23..638542d7 100755
--- a/bin/background_indexer.py
+++ b/bin/background_indexer.py
@@ -30,7 +30,9 @@ class BackgroundIndexer(AbstractManager):
 
     def _build_missing_pickles(self):
         for uuid_path in sorted(self.lookyloo.capture_dir.glob('**/uuid'), reverse=True):
-            if (uuid_path.parent / 'tree.pickle').exists() or not list(uuid_path.parent.rglob('*.har')):
+            if ((uuid_path.parent / 'tree.pickle').exists()
+                    or not list(uuid_path.parent.rglob('*.har'))
+                    or not list(uuid_path.parent.rglob('*.har.gz'))):
                 continue
             lock_file = uuid_path.parent / 'lock'
             if lock_file.exists():
diff --git a/lookyloo/capturecache.py b/lookyloo/capturecache.py
index bcc6d032..a19b7f32 100644
--- a/lookyloo/capturecache.py
+++ b/lookyloo/capturecache.py
@@ -89,7 +89,7 @@ def load_pickle_tree(capture_dir: Path, last_mod_time: int) -> CrawledTree:
                 remove_pickle_tree(capture_dir)
             except Exception:
                 remove_pickle_tree(capture_dir)
-    if list(capture_dir.rglob('*.har')):
+    if list(capture_dir.rglob('*.har')) or list(capture_dir.rglob('*.har.gz')):
         raise TreeNeedsRebuild('We have HAR files and need to rebuild the tree.')
     # The tree doesn't need to be rebuilt if there are no HAR files.
     raise NoValidHarFile("Couldn't find HAR files")
@@ -208,7 +208,8 @@ class CapturesIndex(Mapping):
                 time.sleep(5)
             return load_pickle_tree(capture_dir, capture_dir.stat().st_mtime)
 
-        har_files = sorted(capture_dir.glob('*.har'))
+        if not (har_files := sorted(capture_dir.glob('*.har'))):
+            har_files = sorted(capture_dir.glob('*.har.gz'))
         try:
             tree = CrawledTree(har_files, uuid)
             self.__resolve_dns(tree)
@@ -269,7 +270,9 @@ class CapturesIndex(Mapping):
                     error_to_cache = content
                 cache['error'] = f'The capture {capture_dir.name} has an error: {error_to_cache}'
 
-        if (har_files := sorted(capture_dir.rglob('*.har'))):
+        if not (har_files := sorted(capture_dir.rglob('*.har'))):
+            har_files = sorted(capture_dir.rglob('*.har.gz'))
+        if har_files:
             try:
                 har = HarFile(har_files[0], uuid)
                 cache['title'] = har.initial_title