diff --git a/features/article.yml b/features/article.yml
index 89da866c28b..5fac9bb3c4a 100644
--- a/features/article.yml
+++ b/features/article.yml
@@ -2,5 +2,7 @@ name: <article>
 description: The `<article>` element represents self-contained content, which is intended to be independently distributable or reusable, such as a comment, a blog post, or news article.
 spec: https://html.spec.whatwg.org/multipage/sections.html#the-article-element
 group: html-elements
+# Note: <article> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.article
diff --git a/features/aside.yml b/features/aside.yml
index e7e09df10cb..3e0fb530377 100644
--- a/features/aside.yml
+++ b/features/aside.yml
@@ -2,5 +2,7 @@ name: <aside>
 description: The `<aside>` element represents a portion of a document whose content is only indirectly related to the document's main content.
 spec: https://html.spec.whatwg.org/multipage/sections.html#the-aside-element
 group: html-elements
+# Note: <aside> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.aside
diff --git a/features/figure.yml b/features/figure.yml
index 3de20002d2a..f43b54c3835 100644
--- a/features/figure.yml
+++ b/features/figure.yml
@@ -4,6 +4,8 @@ spec:
   - https://html.spec.whatwg.org/multipage/grouping-content.html#the-figure-element
   - https://html.spec.whatwg.org/multipage/grouping-content.html#the-figcaption-element
 group: html-elements
+# Note: <figure> and <figcaption> are part of https://caniuse.com/html5semantic
+# but that covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.figcaption
   - html.elements.figure
diff --git a/features/header-footer.yml b/features/header-footer.yml
index 53a3a1ebed1..a20bb67bdbc 100644
--- a/features/header-footer.yml
+++ b/features/header-footer.yml
@@ -4,6 +4,8 @@ spec:
   - https://html.spec.whatwg.org/multipage/sections.html#the-header-element
   - https://html.spec.whatwg.org/multipage/sections.html#the-footer-element
 group: html-elements
+# Note: <header> and <footer> are part of https://caniuse.com/html5semantic but
+# that feature covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.footer
   - html.elements.header
diff --git a/features/main.yml b/features/main.yml
index ecfb25c575e..921f9c5f7d4 100644
--- a/features/main.yml
+++ b/features/main.yml
@@ -2,5 +2,7 @@ name: <main>
 description: The `<main>` element represents the dominant content of a document. It is commonly used together with `<header>` and `<footer>`.
 spec: https://html.spec.whatwg.org/multipage/grouping-content.html#the-main-element
 group: html-elements
+# Note: <main> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.main
diff --git a/features/mark.yml b/features/mark.yml
index 013c5477c51..45dae90fe3b 100644
--- a/features/mark.yml
+++ b/features/mark.yml
@@ -2,5 +2,7 @@ name: <mark>
 description: The `<mark>` element represents text which is marked or highlighted for reference or notation purposes.
 spec: https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-mark-element
 group: html-elements
+# Note: <mark> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.mark
diff --git a/features/nav.yml b/features/nav.yml
index 7a3f30b8778..dc81a38a220 100644
--- a/features/nav.yml
+++ b/features/nav.yml
@@ -2,5 +2,7 @@ name: <nav>
 description: The `<nav>` element represents a section of a page whose purpose is to provide navigation links, either within the current document or to other documents.
 spec: https://html.spec.whatwg.org/multipage/sections.html#the-nav-element
 group: html-elements
+# Note: <nav> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.nav
diff --git a/features/section.yml b/features/section.yml
index 8b0ff439d4a..e827e90af2b 100644
--- a/features/section.yml
+++ b/features/section.yml
@@ -2,5 +2,7 @@ name: <section>
 description: The `<section>` element is a generic standalone section of a document, which doesn't have a more specific semantic element to represent it.
 spec: https://html.spec.whatwg.org/multipage/sections.html#the-section-element
 group: html-elements
+# Note: <section> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - html.elements.section
diff --git a/features/time.yml b/features/time.yml
index bc925ea1b81..f1174bb6a75 100644
--- a/features/time.yml
+++ b/features/time.yml
@@ -2,6 +2,8 @@ name: <time>
 description: The `<time>` HTML element represents a time, such as a calendar date, clock time, or duration. It may include the `datetime` attribute to translate dates into machine-readable format.
 spec: https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-time-element
 group: html-elements
+# Note: <time> is part of https://caniuse.com/html5semantic but that feature
+# covers many unrelated elements and is therefore not linked here.
 compat_features:
   - api.HTMLTimeElement
   - api.HTMLTimeElement.dateTime