Yoast SEO is the standard for SEO optimization on WordPress. Once configured correctly, it automatically generates a sitemap, meta tags, and Schema markup.

Initial Setup (Setup Wizard)

SEO → General → Run the configuration wizard
Specify your site type: blog, business, shop
Enter your organization name and logo
Connect Google Search Console
Specify the main keyphrase for the homepage

Setting Up the XML Sitemap

SEO → General → Features → enable XML Sitemap
The sitemap is available at: yoursite.com/sitemap_index.xml
Add the sitemap to Google Search Console and Bing Webmaster Tools

Meta Tags for Each Page

In the editor for each page/post, the Yoast SEO block lets you set:

SEO Title — title for Google (50–60 characters)
Meta Description — description (150–160 characters)
Focus keyphrase — the target keyphrase; Yoast analyzes the text

SEO → Social → enable Facebook and Twitter/X
Upload a default OG image (1200×630px)

Breadcrumbs (SEO + UX)

// In the theme's functions.php:
add_theme_support('yoast-seo-breadcrumbs');

// In the template:
<?php if (function_exists('yoast_breadcrumb')) {
    yoast_breadcrumb('<nav class="breadcrumbs">', '</nav>');
} ?>

✅ Yoast's green indicator is a guide, not a goal. Write for humans. Good content scored "needs improvement" will outrank an SEO-optimized husk of a post.

Common Yoast SEO errors

The plugin becomes noticeable exactly when something goes wrong: the sitemap will not open, or the search snippet looks different from what was set.

Symptom	Cause	What to do
The sitemap returns 404 at /sitemap_index.xml	Permalink rules were not resaved after activating the plugin, or another SEO plugin conflicts on the same path	Go to Settings → Permalinks and click "Save Changes"
The meta description in Google search does not match what is set in Yoast	Google rewrites the snippet when it considers the description irrelevant to the query, or the page has not been reindexed yet	Check via Google Search Console → URL Inspection and request reindexing
There has been a critical error on this website after a Yoast update	Two SEO plugins are active at once and conflict over the same hooks	Keep only one SEO plugin active
Breadcrumbs do not show up on the front end	The theme does not call the yoast_breadcrumb() function automatically	Add the function call to the theme template manually

If a WooCommerce store is losing sales because of slow product pages, see the article on setting up WooCommerce.

When Yoast SEO alone is not enough

A multilingual site with hreflang markup — Yoast itself needs a separate multilingual plugin; it does not create language versions of pages
A large online store with faceted filtering — the number of meta tags Yoast generates will not fix duplicate URLs from filter parameters; separate canonical rules are needed
A technical SEO audit of crawling and broken links at scale — Yoast does not crawl the whole site; that needs a dedicated crawler
Local SEO with several physical locations — each location needs its own LocalBusiness Schema markup, not the plugin's shared settings
Sites with a very slow server response — Yoast's green indicator does not account for Core Web Vitals, and those increasingly affect search rankings

In these cases Yoast stays a useful base layer — meta tags, sitemap, basic Schema — but not the only tool in the SEO strategy.

For multilingual setup specifically, see the article on Polylang.

Advanced tuning through standard WordPress filters

Some fine-grained indexing control is not handled by Yoast itself but through the built-in WordPress core filter wp_robots, introduced in version 5.7:

add_filter('wp_robots', function ($robots) {
    $robots['max-image-preview'] = 'large';
    return $robots;
});

💡 This filter works regardless of which SEO plugin is installed, and does not break when Yoast is updated.

How to check that the SEO settings took effect

View the page source: the meta name="description" tag should match what is set in Yoast
Google Search Console → URL Inspection → Live Test shows the current version of the page
The Rich Results Test confirms the Schema markup is correct with no errors
The sitemap_index.xml file opens and contains an up-to-date URL list with no 404s or 500s
The Coverage section in Google Search Console shows no increase in errors after the latest Yoast settings change

curl -s https://example.com/ | grep -i 'meta name="description"'
curl -s https://example.com/sitemap_index.xml | head -20