diff --git a/archivebox/core/admin.py b/archivebox/core/admin.py
index ea51f668..bacc53c0 100644
--- a/archivebox/core/admin.py
+++ b/archivebox/core/admin.py
@@ -106,6 +106,7 @@ class SnapshotAdmin(SearchResultsAdminMixin, admin.ModelAdmin):
     actions = [delete_snapshots, overwrite_snapshots, update_snapshots, update_titles, verify_snapshots]
     actions_template = 'admin/actions_as_select.html'
     form = SnapshotAdminForm
+    list_per_page = 40
 
     def get_urls(self):
         urls = super().get_urls()
diff --git a/archivebox/index/html.py b/archivebox/index/html.py
index 5eba0959..d97c6595 100644
--- a/archivebox/index/html.py
+++ b/archivebox/index/html.py
@@ -118,6 +118,8 @@ def render_django_template(template: str, context: Mapping[str, str]) -> str:
 def snapshot_icons(snapshot) -> str:
     from core.models import EXTRACTORS
 
+    # start = datetime.now()
+
     archive_results = snapshot.archiveresult_set.filter(status="succeeded")
     link = snapshot.as_link()
     path = link.archive_path
@@ -169,4 +171,7 @@ def snapshot_icons(snapshot) -> str:
             output += '<a href="{}" class="exists-{}" title="{}">{}</a> '.format(canon["archive_org_path"], str(exists),
                                                                                         "archive_org", icons.get("archive_org", "?"))
 
-    return format_html('<span class="files-icons" style="font-size: 1.1em; opacity: 0.8; min-width: 240px; display: inline-block">{}<span>', mark_safe(output))
+    result = format_html('<span class="files-icons" style="font-size: 1.1em; opacity: 0.8; min-width: 240px; display: inline-block">{}<span>', mark_safe(output))
+    # end = datetime.now()
+    # print(((end - start).total_seconds()*1000) // 1, 'ms')
+    return result
diff --git a/archivebox/templates/core/snapshot.html b/archivebox/templates/core/snapshot.html
index ebf2385a..839df05c 100644
--- a/archivebox/templates/core/snapshot.html
+++ b/archivebox/templates/core/snapshot.html
@@ -484,7 +484,7 @@
                 </div>
             </div>
         </header>
-        <iframe sandbox="allow-same-origin allow-scripts allow-forms" class="full-page-iframe" src="{{singlefile_url}}" name="preview"></iframe>
+        <iframe sandbox="allow-same-origin allow-scripts allow-forms" class="full-page-iframe" src="{{singlefile_path}}" name="preview"></iframe>
     
         <script
               src="https://code.jquery.com/jquery-3.2.1.slim.min.js"