diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/Aria.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/api/accessibility/Aria.java
similarity index 98%
rename from sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/Aria.java
rename to sonar-html-plugin/src/main/java/org/sonar/plugins/html/api/accessibility/Aria.java
index 15adaa6f3..2f9d7b16e 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/Aria.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/api/accessibility/Aria.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.sonar.plugins.html.checks.accessibility;
+package org.sonar.plugins.html.api.accessibility;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -80,7 +80,7 @@ public class Aria {
     ARIA_PROPERTIES.put("aria-valuetext", new AriaProperty("aria-valuetext", AriaPropertyType.STRING));
   }
 
-  static class AriaProperty {
+  public static class AriaProperty {
     private final String name;
     private final AriaPropertyType type;
     private final Optional<Boolean> allowUndefined;
@@ -114,7 +114,7 @@ public Set<String> getValues() {
     }
   }
 
-  enum AriaPropertyType {
+  public enum AriaPropertyType {
     BOOLEAN("boolean"),
     STRING("string"),
     TOKEN("token"),
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/AriaProptypesCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/AriaProptypesCheck.java
index 840b3ba5e..9551b1330 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/AriaProptypesCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/AriaProptypesCheck.java
@@ -23,11 +23,11 @@
 import java.util.stream.Collectors;
 import org.sonar.check.Rule;
 import org.sonar.plugins.html.checks.AbstractPageCheck;
-import org.sonar.plugins.html.checks.accessibility.Aria.AriaProperty;
-import org.sonar.plugins.html.checks.accessibility.Aria.AriaPropertyType;
+import org.sonar.plugins.html.api.accessibility.Aria.AriaProperty;
+import org.sonar.plugins.html.api.accessibility.Aria.AriaPropertyType;
 import org.sonar.plugins.html.node.TagNode;
 
-import static org.sonar.plugins.html.checks.accessibility.Aria.ARIA_PROPERTIES;
+import static org.sonar.plugins.html.api.accessibility.Aria.ARIA_PROPERTIES;
 
 @Rule(key = "S6793")
 public class AriaProptypesCheck extends AbstractPageCheck {
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/HeadingHasAccessibleContentCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/HeadingHasAccessibleContentCheck.java
index 0611a5566..fc9722f10 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/HeadingHasAccessibleContentCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/HeadingHasAccessibleContentCheck.java
@@ -20,7 +20,6 @@
 import org.sonar.check.Rule;
 import org.sonar.plugins.html.api.Helpers;
 import org.sonar.plugins.html.api.BufferStack;
-import org.sonar.plugins.html.api.HtmlConstants;
 import org.sonar.plugins.html.checks.AbstractPageCheck;
 import org.sonar.plugins.html.node.DirectiveNode;
 import org.sonar.plugins.html.node.ExpressionNode;
@@ -32,6 +31,8 @@
 import java.util.Deque;
 import java.util.List;
 
+import static org.sonar.plugins.html.api.HtmlConstants.hasKnownHTMLTag;
+
 @Rule(key = "S6850")
 public class HeadingHasAccessibleContentCheck extends AbstractPageCheck {
   private final List<String> invalidAttributes = List.of(
@@ -60,7 +61,7 @@ public void startElement(TagNode node) {
       String nodeName = node.getNodeName();
 
       // tags that are not part of the known HTML tags list are considered as content
-      if (!HtmlConstants.KNOWN_HTML_TAGS.contains(nodeName)) {
+      if (!hasKnownHTMLTag(node)) {
         bufferStack.write(nodeName);
       }
     }
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoInteractiveElementToNoninteractiveRoleCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoInteractiveElementToNoninteractiveRoleCheck.java
index 469d4141b..d8c7386ce 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoInteractiveElementToNoninteractiveRoleCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoInteractiveElementToNoninteractiveRoleCheck.java
@@ -17,15 +17,14 @@
  */
 package org.sonar.plugins.html.checks.accessibility;
 
-import java.util.Locale;
 import org.sonar.check.Rule;
 import org.sonar.plugins.html.checks.AbstractPageCheck;
 import org.sonar.plugins.html.node.TagNode;
 
-import static org.sonar.plugins.html.api.HtmlConstants.INTERACTIVE_ELEMENTS;
-import static org.sonar.plugins.html.api.HtmlConstants.KNOWN_HTML_TAGS;
-import static org.sonar.plugins.html.api.HtmlConstants.NON_INTERACTIVE_ROLES;
-import static org.sonar.plugins.html.api.HtmlConstants.PRESENTATION_ROLES;
+import static org.sonar.plugins.html.api.HtmlConstants.hasKnownHTMLTag;
+import static org.sonar.plugins.html.api.HtmlConstants.hasNonInteractiveRole;
+import static org.sonar.plugins.html.api.HtmlConstants.hasPresentationRole;
+import static org.sonar.plugins.html.api.HtmlConstants.isInteractiveElement;
 
 @Rule(key = "S6843")
 public class NoInteractiveElementToNoninteractiveRoleCheck extends AbstractPageCheck {
@@ -34,13 +33,10 @@ public class NoInteractiveElementToNoninteractiveRoleCheck extends AbstractPageC
 
   @Override
   public void startElement(TagNode node) {
-    var role = node.getPropertyValue("role");
-    var tagName = node.getNodeName().toLowerCase(Locale.ROOT);
     if (
-      role != null &&
-      KNOWN_HTML_TAGS.contains(tagName) &&
-      INTERACTIVE_ELEMENTS.contains(tagName) &&
-      (NON_INTERACTIVE_ROLES.contains(role) || PRESENTATION_ROLES.contains(role))
+      hasKnownHTMLTag(node) &&
+      isInteractiveElement(node) &&
+      (hasNonInteractiveRole(node) || hasPresentationRole(node))
     ) {
       createViolation(node, MESSAGE);
     }
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNonInteractiveElementsWithHandlersCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNonInteractiveElementsWithHandlersCheck.java
index 659f224cb..566c33d82 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNonInteractiveElementsWithHandlersCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNonInteractiveElementsWithHandlersCheck.java
@@ -17,8 +17,8 @@
  */
 package org.sonar.plugins.html.checks.accessibility;
 
-import static org.sonar.plugins.html.api.HtmlConstants.KNOWN_HTML_TAGS;
 import static org.sonar.plugins.html.api.HtmlConstants.hasAbstractRole;
+import static org.sonar.plugins.html.api.HtmlConstants.hasKnownHTMLTag;
 import static org.sonar.plugins.html.api.HtmlConstants.isInteractiveElement;
 import static org.sonar.plugins.html.api.HtmlConstants.hasInteractiveRole;
 import static org.sonar.plugins.html.api.HtmlConstants.isNonInteractiveElement;
@@ -47,8 +47,7 @@ public class NoNonInteractiveElementsWithHandlersCheck extends AbstractPageCheck
 
   @Override
   public void startElement(TagNode element) {
-    var tagName = element.getNodeName();
-    if (!KNOWN_HTML_TAGS.contains(tagName)) {
+    if (!hasKnownHTMLTag(element)) {
       return;
     }
 
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveElementToInteractiveRoleCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveElementToInteractiveRoleCheck.java
index ffc3c6d66..02ae7a72d 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveElementToInteractiveRoleCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveElementToInteractiveRoleCheck.java
@@ -17,9 +17,9 @@
  */
 package org.sonar.plugins.html.checks.accessibility;
 
-import static org.sonar.plugins.html.api.HtmlConstants.INTERACTIVE_ROLES;
-import static org.sonar.plugins.html.api.HtmlConstants.KNOWN_HTML_TAGS;
-import static org.sonar.plugins.html.api.HtmlConstants.NON_INTERACTIVE_ELEMENTS;
+import static org.sonar.plugins.html.api.HtmlConstants.hasInteractiveRole;
+import static org.sonar.plugins.html.api.HtmlConstants.hasKnownHTMLTag;
+import static org.sonar.plugins.html.api.HtmlConstants.isNonInteractiveElement;
 
 import java.util.Locale;
 import org.sonar.check.Rule;
@@ -33,13 +33,10 @@ public class NoNoninteractiveElementToInteractiveRoleCheck extends AbstractPageC
 
   @Override
   public void startElement(TagNode node) {
-    var role = node.getPropertyValue("role");
-    var tagName = node.getNodeName().toLowerCase(Locale.ROOT);
     if (
-      role != null &&
-      KNOWN_HTML_TAGS.contains(tagName) &&
-      NON_INTERACTIVE_ELEMENTS.contains(tagName) &&
-      INTERACTIVE_ROLES.contains(role)
+      hasKnownHTMLTag(node) &&
+      isNonInteractiveElement(node) &&
+      hasInteractiveRole(node)
     ) {
       createViolation(node, MESSAGE);
     }
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveTabIndexCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveTabIndexCheck.java
index 032469cc2..b5ba6eabd 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveTabIndexCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoNoninteractiveTabIndexCheck.java
@@ -17,9 +17,9 @@
  */
 package org.sonar.plugins.html.checks.accessibility;
 
-import static org.sonar.plugins.html.api.HtmlConstants.INTERACTIVE_ELEMENTS;
-import static org.sonar.plugins.html.api.HtmlConstants.INTERACTIVE_ROLES;
-import static org.sonar.plugins.html.api.HtmlConstants.KNOWN_HTML_TAGS;
+import static org.sonar.plugins.html.api.HtmlConstants.hasInteractiveRole;
+import static org.sonar.plugins.html.api.HtmlConstants.hasKnownHTMLTag;
+import static org.sonar.plugins.html.api.HtmlConstants.isInteractiveElement;
 
 import org.sonar.check.Rule;
 import org.sonar.plugins.html.checks.AbstractPageCheck;
@@ -32,7 +32,7 @@ public class NoNoninteractiveTabIndexCheck extends AbstractPageCheck {
 
   @Override
   public void startElement(TagNode node) {
-    if (!isHTMLTag(node) || isInteractiveElement(node) || hasInteractiveRole(node)) {
+    if (!hasKnownHTMLTag(node) || isInteractiveElement(node) || hasInteractiveRole(node)) {
       return;
     }
 
@@ -50,19 +50,4 @@ public void startElement(TagNode node) {
       // ignore
     }
   }
-
-  private static boolean isHTMLTag(TagNode element) {
-    var tagName = element.getNodeName();
-    return KNOWN_HTML_TAGS.stream().anyMatch(tagName::equalsIgnoreCase);
-  }
-
-  private static boolean isInteractiveElement(TagNode element) {
-    var tagName = element.getNodeName();
-    return INTERACTIVE_ELEMENTS.stream().anyMatch(tagName::equalsIgnoreCase);
-  }
-
-  private static boolean hasInteractiveRole(TagNode element) {
-    var role = element.getAttribute("role");
-    return role != null && INTERACTIVE_ROLES.stream().anyMatch(role::equalsIgnoreCase);
-  }
 }
diff --git a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoStaticElementInteractionsCheck.java b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoStaticElementInteractionsCheck.java
index 73b38fd3d..542e4cdc1 100644
--- a/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoStaticElementInteractionsCheck.java
+++ b/sonar-html-plugin/src/main/java/org/sonar/plugins/html/checks/accessibility/NoStaticElementInteractionsCheck.java
@@ -17,8 +17,8 @@
  */
 package org.sonar.plugins.html.checks.accessibility;
 
-import static org.sonar.plugins.html.api.HtmlConstants.KNOWN_HTML_TAGS;
 import static org.sonar.plugins.html.api.HtmlConstants.hasAbstractRole;
+import static org.sonar.plugins.html.api.HtmlConstants.hasKnownHTMLTag;
 import static org.sonar.plugins.html.api.HtmlConstants.isInteractiveElement;
 import static org.sonar.plugins.html.api.HtmlConstants.hasInteractiveRole;
 import static org.sonar.plugins.html.api.HtmlConstants.isNonInteractiveElement;
@@ -47,9 +47,7 @@ public class NoStaticElementInteractionsCheck extends AbstractPageCheck {
 
   @Override
   public void startElement(TagNode element) {
-    var tagName = element.getNodeName();
-
-    if (!KNOWN_HTML_TAGS.contains(tagName)) {
+    if (!hasKnownHTMLTag(element)) {
       return;
     }
 
diff --git a/sonar-html-plugin/src/test/resources/checks/NoInteractiveElementToNoninteractiveRoleCheck/valid.html b/sonar-html-plugin/src/test/resources/checks/NoInteractiveElementToNoninteractiveRoleCheck/valid.html
index 76bd66275..e6c6aa6a0 100644
--- a/sonar-html-plugin/src/test/resources/checks/NoInteractiveElementToNoninteractiveRoleCheck/valid.html
+++ b/sonar-html-plugin/src/test/resources/checks/NoInteractiveElementToNoninteractiveRoleCheck/valid.html
@@ -107,7 +107,7 @@
 <ruby role="button" />
 <s role="button" />
 <samp role="button" />
-<script role="button" />
+<script role="button" ></script>
 <section role="button" />
 <small role="button" />
 <source role="button" />