CDN image indexing and Yoast SEO

To ensure images are being indexed properly by Google Search Console when using the Yoast SEO plugin and a CDN, you should add a small snippet of code to the top of the functions.php file. This code will allow Yoast SEO to properly generate the sitemap for your WordPress website.

1. Modify the functions.php file by adding this snippet of code to the top of the file, and replacing example.com in both URLs with your own.

   function wpseo_cdn_filter($uri) {
     return str_replace('https://www.example.com', 'https://secureservercdn.net/example.com/', $uri);
   }
   
   add_filter( 'wpseo_xml_sitemap_img_src', 'wpseo_cdn_filter' );
       

2. Save the changes.
3. Go to the Yoast SEO Sitemap settings and regenerate the sitemap.

The sitemap will now use the CDN URL to reference the images. After this change it could take several days for the images to re-index in your Google Search Console.

Next steps

• Log in to the Google Search Console with your Google login.

More Info

• What is a CDN?