diff --git a/Libraries/LibWeb/CSS/StyleComputer.cpp b/Libraries/LibWeb/CSS/StyleComputer.cpp
index a96a11e32f2..df94b01a5e9 100644
--- a/Libraries/LibWeb/CSS/StyleComputer.cpp
+++ b/Libraries/LibWeb/CSS/StyleComputer.cpp
@@ -2530,7 +2530,7 @@ GC::Ref<ComputedProperties> StyleComputer::compute_properties(DOM::Element& elem
 
 void StyleComputer::build_rule_cache_if_needed() const
 {
-    if (m_author_rule_cache && m_user_rule_cache && m_user_agent_rule_cache)
+    if (has_valid_rule_cache())
         return;
     const_cast<StyleComputer&>(*this).build_rule_cache();
 }
@@ -3077,19 +3077,19 @@ size_t StyleComputer::number_of_css_font_faces_with_loading_in_progress() const
     return count;
 }
 
-bool StyleComputer::has_has_selectors() const
+bool StyleComputer::may_have_has_selectors() const
 {
-    if (!document().is_active())
-        return false;
+    if (!has_valid_rule_cache())
+        return true;
 
     build_rule_cache_if_needed();
     return m_selector_insights->has_has_selectors;
 }
 
-bool StyleComputer::has_defined_selectors() const
+bool StyleComputer::may_have_defined_selectors() const
 {
-    if (!document().is_active())
-        return false;
+    if (!has_valid_rule_cache())
+        return true;
 
     build_rule_cache_if_needed();
     return m_selector_insights->has_defined_selectors;
diff --git a/Libraries/LibWeb/CSS/StyleComputer.h b/Libraries/LibWeb/CSS/StyleComputer.h
index fccc7b58b10..37909461fd3 100644
--- a/Libraries/LibWeb/CSS/StyleComputer.h
+++ b/Libraries/LibWeb/CSS/StyleComputer.h
@@ -153,6 +153,7 @@ public:
     InvalidationSet invalidation_set_for_properties(Vector<InvalidationSet::Property> const&) const;
     bool invalidation_property_used_in_has_selector(InvalidationSet::Property const&) const;
 
+    [[nodiscard]] bool has_valid_rule_cache() const { return m_author_rule_cache; }
     void invalidate_rule_cache();
 
     Gfx::Font const& initial_font() const;
@@ -176,8 +177,8 @@ public:
     };
     void collect_animation_into(DOM::Element&, Optional<CSS::Selector::PseudoElement::Type>, GC::Ref<Animations::KeyframeEffect> animation, ComputedProperties&, AnimationRefresh = AnimationRefresh::No) const;
 
-    [[nodiscard]] bool has_has_selectors() const;
-    [[nodiscard]] bool has_defined_selectors() const;
+    [[nodiscard]] bool may_have_has_selectors() const;
+    [[nodiscard]] bool may_have_defined_selectors() const;
 
     size_t number_of_css_font_faces_with_loading_in_progress() const;
 
diff --git a/Libraries/LibWeb/DOM/Document.cpp b/Libraries/LibWeb/DOM/Document.cpp
index 1ebdc2e687c..260525ae944 100644
--- a/Libraries/LibWeb/DOM/Document.cpp
+++ b/Libraries/LibWeb/DOM/Document.cpp
@@ -1617,7 +1617,7 @@ void Document::invalidate_style_for_elements_affected_by_hover_change(Node& old_
         return;
 
     auto& invalidation_root = [&] -> Node& {
-        if (style_computer().has_has_selectors())
+        if (style_computer().may_have_has_selectors())
             return old_new_hovered_common_ancestor;
         return old_new_hovered_common_ancestor;
     }();
diff --git a/Libraries/LibWeb/DOM/Element.cpp b/Libraries/LibWeb/DOM/Element.cpp
index cee6a5a7129..d61245d81b5 100644
--- a/Libraries/LibWeb/DOM/Element.cpp
+++ b/Libraries/LibWeb/DOM/Element.cpp
@@ -2328,7 +2328,7 @@ void Element::set_custom_element_state(CustomElementState state)
         return;
     m_custom_element_state = state;
 
-    if (document().style_computer().has_defined_selectors())
+    if (document().style_computer().may_have_defined_selectors())
         invalidate_style(StyleInvalidationReason::CustomElementStateChange);
 }
 
diff --git a/Libraries/LibWeb/DOM/Node.cpp b/Libraries/LibWeb/DOM/Node.cpp
index 224772e9728..4817e7251a3 100644
--- a/Libraries/LibWeb/DOM/Node.cpp
+++ b/Libraries/LibWeb/DOM/Node.cpp
@@ -408,7 +408,7 @@ void Node::invalidate_style(StyleInvalidationReason reason)
 
     // FIXME: This is very not optimal! We should figure out a smaller set of elements to invalidate,
     //        but right now the :has() selector means we have to invalidate everything.
-    if (!is_document() && document().style_computer().has_has_selectors()) {
+    if (!is_document() && document().style_computer().may_have_has_selectors()) {
         document().invalidate_style(reason);
         return;
     }