Add canonical links

In case there are duplicate pages at different URLs, these links tell search engines which URL is the canonical one.
pbrucla · Dec 31, 2023 · a0f17d2 · a0f17d2
1 parent ee5e4f0
commit a0f17d2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/_includes/head.html b/_includes/head.html
@@ -15,6 +15,7 @@
     <meta property="og:image" content="{% if page.image %}{{ page.image | absolute_url }}{% else %}{{ site.image | absolute_url }}{% endif %}">
     <meta name="twitter:card" content="summary_large_image">
     <meta name="theme-color" content="#FFBD3F" />
+	<link rel="canonical" href="{% if page.canonical %}{{ page.canonical }}{% else %}{{ page.url | absolute_url }}{% endif %}" />
 
     <!-- KaTeX -->
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.css" integrity="sha384-AfEj0r4/OFrOo5t7NnNe46zW/tFgW6x/bCJG8FqQCEo3+Aro6EYUG4+cU+KJWu/X" crossorigin="anonymous">