diff --git a/docker/routlin-dash/app/factory.py b/docker/routlin-dash/app/factory.py
index 57040e5..64dc205 100644
--- a/docker/routlin-dash/app/factory.py
+++ b/docker/routlin-dash/app/factory.py
@@ -1003,10 +1003,11 @@ def build_table_cell(value, render_fn, col_class='', field='', row_idx=None,
                 mini  = s[0] if s else ''
             if not s:
                 return ''
+            tip_attr = f' data-tooltip="{e(tooltip)}"' if tooltip else ''
             if prefer_short:
-                return f'<span class="tag" data-tooltip="{e(tooltip)}">{e(short)}</span>'
+                return f'<span class="tag"{tip_attr}>{e(short)}</span>'
             return (
-                f'<span class="tag" data-tooltip="{e(tooltip)}">'
+                f'<span class="tag"{tip_attr}>'
                 f'<span class="tl-full">{e(s)}</span>'
                 f'<span class="tl-short">{e(short)}</span>'
                 f'<span class="tl-min">{e(mini)}</span>'
diff --git a/docker/routlin-dash/app/pages/dnsblocking/content.json b/docker/routlin-dash/app/pages/dnsblocking/content.json
index 0117ca8..4c0dfcb 100644
--- a/docker/routlin-dash/app/pages/dnsblocking/content.json
+++ b/docker/routlin-dash/app/pages/dnsblocking/content.json
@@ -38,7 +38,7 @@
           "class": "col-mono"
         },
         {
-          "label": "Used By",
+          "label": "Used By VLAN(s)",
           "field": "used_by",
           "render": "tag_list"
         }
diff --git a/docker/routlin-dash/app/pages/dnsblocking/view.py b/docker/routlin-dash/app/pages/dnsblocking/view.py
index 8461c65..ac5985f 100644
--- a/docker/routlin-dash/app/pages/dnsblocking/view.py
+++ b/docker/routlin-dash/app/pages/dnsblocking/view.py
@@ -108,7 +108,7 @@ def collect_tokens(cfg):
         for v in vlans if v.get('name')
     )
     tokens['VLAN_USED_BY_CHECKBOXES'] = (
-        f'<div class="form-group"><label class="form-label">Used By</label>'
+        f'<div class="form-group"><label class="form-label">Used By VLAN(s)</label>'
         f'<div>{vlan_checkboxes}</div></div>'
     ) if vlan_checkboxes else ''
     content = factory.load_json(f'{factory.PAGES_DIR}/dnsblocking/content.json')