Technical SEO
Dive into the technical side of Yoast SEO features. This category covers crawling, indexing, schema, sitemaps, canonical URLs, redirects, and all the behind-the-scenes elements that help search engines properly understand your site.
Error: “If your robots.txt were writeable”
The Yoast SEO plugin (and thus your entire WordPress install) is not allowed to write to your robots.txt file. Please…
Error: Cannot redeclare yoast_breadcrumb()
Error: Cannot redeclare yoast_breadcrumb() If you’re getting a breadcrumb error that looks like this: Your theme or another plugin is…
Why does my sitemap have gray links?
Why does my sitemap have gray links? The gray links in your XML sitemap identify the URLs that your browser…
How to add an external sitemap to the index
How to add an external sitemap to the index Our Yoast SEO plugin creates sitemaps on the fly for the…
Add theme support for Yoast SEO breadcrumbs
Add theme support for Yoast SEO breadcrumbs If your theme declares support for yoast-seo-breadcrumbs, Yoast SEO will render breadcrumbs for…
Why am I not getting rich results for my content?
Why am I not getting rich results for my content? If you use Google, some content gets displayed as rich…
Images in XML sitemaps
Images in XML sitemaps Yoast SEO creates XML sitemaps, which by default include an entry for every public post and…
Missing or invalid date in XML Sitemap
Missing or invalid date in XML Sitemap Google Search Console may flag your sitemap for a missing or invalid date…
Plugin compatibility with paginated content
Plugin compatibility with paginated content Yoast SEO adds rel="next" and rel="prev" tags that let search engines know that they are on a paginated archive…
Yoast XML sitemaps on NGINX servers
Yoast XML sitemaps on NGINX servers Our plugin generates sitemaps dynamically when you enable the sitemap feature. In some cases,…
Page analysis has been disabled
Page analysis has been disabled The following message will appear when a theme or plugin developer turns off the functionality…
You should add [XYZ] to the httpd Config File
You should add [XYZ] to the httpd config file You may receive the following warning. As you’re on Apache, you…
How to fix white screen when activating or updating plugin
How to fix white screen when activating or updating plugin When a plugin and/or theme conflicts with other plugins and/or…
URL redirects with encoded characters
URL redirects with encoded characters Unusual looking URLs cause a lot of confusion as to the best practice for redirecting…
“Call to undefined function filter_input()” fatal error
“Call to undefined function filter_input()” fatal error If you’re getting the following error, it means that your hosting setup has…
Parse error: Unexpected T_FUNCTION
Parse error: Unexpected T_FUNCTION Do you see the following error? Parse error: syntax error, unexpected T_FUNCTION in/PATH_TO_WORDPRESS/wp-content/plugins/PATH_TO/file.php on line 41…
Why doesn’t Yoast SEO create a sitemap?
Why doesn’t Yoast SEO create a sitemap? Our sitemaps are created dynamically. If you’ve recently made changes to your site,…
Shortcodes not rendering
Shortcodes not rendering If you have shortcodes in your content that are not rendering, you could see, for instance, something…
Sitemap error: XML or text declaration not at start of entity
Sitemap error: XML or text declaration not at start of entity Are you seeing one of the following sitemap errors?…
I’m getting a “We’re unable to save the file .redirects” error
I’m getting a “We’re unable to save the file .redirects” error If you’re getting this error, it means that the…
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