diff --git a/Userland/Libraries/LibWeb/DOM/Node.h b/Userland/Libraries/LibWeb/DOM/Node.h
index 6018284edc..f9be9fc584 100644
--- a/Userland/Libraries/LibWeb/DOM/Node.h
+++ b/Userland/Libraries/LibWeb/DOM/Node.h
@@ -95,6 +95,10 @@ public:
     virtual bool is_html_progress_element() const { return false; }
     virtual bool is_html_script_element() const { return false; }
     virtual bool is_html_template_element() const { return false; }
+    virtual bool is_html_table_element() const { return false; }
+    virtual bool is_html_table_section_element() const { return false; }
+    virtual bool is_html_table_row_element() const { return false; }
+    virtual bool is_html_table_cell_element() const { return false; }
     virtual bool is_navigable_container() const { return false; }
 
     WebIDL::ExceptionOr<JS::NonnullGCPtr<Node>> pre_insert(JS::NonnullGCPtr<Node>, JS::GCPtr<Node>);
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.h b/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.h
index 3eb91d7be4..f389070a2d 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableCellElement.h
@@ -27,8 +27,15 @@ public:
 private:
     HTMLTableCellElement(DOM::Document&, DOM::QualifiedName);
 
+    virtual bool is_html_table_cell_element() const override { return true; }
+
     virtual void initialize(JS::Realm&) override;
     virtual void apply_presentational_hints(CSS::StyleProperties&) const override;
 };
 
 }
+
+namespace Web::DOM {
+template<>
+inline bool Node::fast_is<HTML::HTMLTableCellElement>() const { return is_html_table_cell_element(); }
+}
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableElement.h b/Userland/Libraries/LibWeb/HTML/HTMLTableElement.h
index f90d7b63b6..eae2e24cf2 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableElement.h
@@ -48,6 +48,8 @@ public:
 private:
     HTMLTableElement(DOM::Document&, DOM::QualifiedName);
 
+    virtual bool is_html_table_element() const override { return true; }
+
     virtual void initialize(JS::Realm&) override;
     virtual void visit_edges(Cell::Visitor&) override;
 
@@ -58,3 +60,8 @@ private:
 };
 
 }
+
+namespace Web::DOM {
+template<>
+inline bool Node::fast_is<HTML::HTMLTableElement>() const { return is_html_table_element(); }
+}
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.h b/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.h
index 496535d33e..a9888e5db7 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableRowElement.h
@@ -30,6 +30,8 @@ public:
 private:
     HTMLTableRowElement(DOM::Document&, DOM::QualifiedName);
 
+    virtual bool is_html_table_row_element() const override { return true; }
+
     virtual void initialize(JS::Realm&) override;
     virtual void visit_edges(Cell::Visitor&) override;
     virtual void apply_presentational_hints(CSS::StyleProperties&) const override;
@@ -38,3 +40,8 @@ private:
 };
 
 }
+
+namespace Web::DOM {
+template<>
+inline bool Node::fast_is<HTML::HTMLTableRowElement>() const { return is_html_table_row_element(); }
+}
diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.h b/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.h
index 9dc389acc1..7fd1c651f0 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.h
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.h
@@ -30,6 +30,8 @@ public:
 private:
     HTMLTableSectionElement(DOM::Document&, DOM::QualifiedName);
 
+    virtual bool is_html_table_section_element() const override { return true; }
+
     virtual void initialize(JS::Realm&) override;
     virtual void visit_edges(Cell::Visitor&) override;
 
@@ -37,3 +39,8 @@ private:
 };
 
 }
+
+namespace Web::DOM {
+template<>
+inline bool Node::fast_is<HTML::HTMLTableSectionElement>() const { return is_html_table_section_element(); }
+}