diff --git a/output/_layouts/default.html b/output/_layouts/default.html
index 8ff4c277..b12a1438 100644
--- a/output/_layouts/default.html
+++ b/output/_layouts/default.html
@@ -42,9 +42,14 @@
{% if site.data.meta.total_tweets == 0 %}
-
- Something’s gone wrong. There are currently no notes to show. We’re investigating.
-
+
+ Something’s gone wrong. There are currently no notes to show. We’re investigating.
+
+ {% elsif site.data.meta.total_fetched < site.data.meta.total_tweets %}
+ {% assign perc_fetched = site.data.meta.total_fetched | times: 100 | divided_by: site.data.meta.total_tweets %}
+
+ Warning: Only {{ perc_fetched }}% of tweets are currently indexed. Unindexed tweets are not included in search or filtering.
+
{% endif %}