Yoast SEO 25.0

Does Yoast SEO work with WordPress 6.8.1 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
1PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 1.08 MiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.211 seconds
The average page load time increased by this amount after activating the plugin.

Environment
WordPress version6.8.1
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 10,000,000+
WordPress.org page https://wordpress.org/plugins/wordpress-seo/
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Pages 15

‹ Test site — WordPress

Page screenshot: ‹ Test site — WordPress
URL /wp-admin/admin.php?page=wpseo_installation_successful_free
Requested URL /wp-admin/plugins.php?action=activate&plugin=wordpress-seo%2Fwp-seo.php&plugin_status=all&paged=1&s&_wpnonce=5dff645efe
Aspect after-activation
HTTP status 200
Load time 2.310 s
Memory usage 4.56 MiB
JS errors None
Resource errors None

Yoast SEO

Page screenshot: Yoast SEO
URL /wp-admin/admin.php?page=wpseo_dashboard
Aspect menu-item
HTTP status 200
Load time 1.393 s
Memory usage 4.54 MiB
JS errors None
Resource errors None

Yoast SEO → Settings

Page screenshot: Yoast SEO  → Settings
URL /wp-admin/admin.php?page=wpseo_page_settings
Aspect menu-item
HTTP status 200
Load time 0.999 s
Memory usage 4.55 MiB
JS errors None
Resource errors None

Yoast SEO → Integrations

Page screenshot: Yoast SEO  → Integrations
URL /wp-admin/admin.php?page=wpseo_integrations
Aspect menu-item
HTTP status 200
Load time 0.896 s
Memory usage 4.45 MiB
JS errors None
Resource errors None

Yoast SEO → Tools

Page screenshot: Yoast SEO  → Tools
URL /wp-admin/admin.php?page=wpseo_tools
Aspect menu-item
HTTP status 200
Load time 0.608 s
Memory usage 4.84 MiB
JS errors None
Resource errors None

Yoast SEO → Academy

Page screenshot: Yoast SEO  → Academy
URL /wp-admin/admin.php?page=wpseo_page_academy
Aspect menu-item
HTTP status 200
Load time 0.450 s
Memory usage 4.44 MiB
JS errors None
Resource errors None

Yoast SEO → Upgrades

Page screenshot: Yoast SEO  → Upgrades
URL /wp-admin/admin.php?page=wpseo_licenses
Aspect menu-item
HTTP status 200
Load time 0.687 s
Memory usage 4.63 MiB
JS errors None
Resource errors None

Yoast SEO → Workouts

Page screenshot: Yoast SEO  → Workouts
URL /wp-admin/admin.php?page=wpseo_workouts
Aspect menu-item
HTTP status 200
Load time 0.805 s
Memory usage 4.46 MiB
JS errors None
Resource errors None

Yoast SEO → Redirects

Page screenshot: Yoast SEO  → Redirects
URL /wp-admin/admin.php?page=wpseo_redirects
Aspect menu-item
HTTP status 200
Load time 0.510 s
Memory usage 4.5 MiB
JS errors None
Resource errors None

Yoast SEO → Redirects → Settings

Page screenshot: Yoast SEO  → Redirects  → 
					Settings
URL /wp-admin/admin.php?page=wpseo_redirects
Aspect menu-item-tab
HTTP status 200
Load time 0.469 s
Memory usage 4.44 MiB
JS errors None
Resource errors None

Yoast SEO → Support

Page screenshot: Yoast SEO  → Support
URL /wp-admin/admin.php?page=wpseo_page_support
Aspect menu-item
HTTP status 200
Load time 0.383 s
Memory usage 4.42 MiB
JS errors None
Resource errors None

Test site - Just another WordPress site

Page screenshot: Test site - Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.329 s
Memory usage 4.49 MiB
JS errors None
Resource errors None

Dashboard ‹ Test site — WordPress

Page screenshot: Dashboard ‹ Test site — WordPress
URL /wp-admin/index.php
Aspect new-meta-boxes
HTTP status 200
Load time 0.564 s
Memory usage 4.52 MiB
JS errors None
Resource errors None

Add Post ‹ Test site — WordPress

Page screenshot: Add Post ‹ Test site — WordPress
URL /wp-admin/post-new.php
Aspect new-meta-boxes
HTTP status 200
Load time 1.034 s
Memory usage 7.66 MiB
JS errors None
Resource errors None

Add Page ‹ Test site — WordPress

Page screenshot: Add Page ‹ Test site — WordPress
URL /wp-admin/post-new.php?post_type=page
Aspect new-meta-boxes
HTTP status 200
Load time 1.245 s
Memory usage 7.64 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.334 s0.669 s+0.335 s3.51 MiB4.52 MiB+ 1.01 MiB
/wp-admin/edit.php0.197 s0.347 s+0.150 s3.57 MiB4.72 MiB+ 1.14 MiB
/wp-admin/post-new.php1.031 s1.972 s+0.941 s6.06 MiB7.67 MiB+ 1.6 MiB
/wp-admin/upload.php0.563 s0.654 s+0.091 s3.52 MiB4.44 MiB+ 933.77 KiB
/wp-admin/options-writing.php0.225 s0.335 s+0.110 s3.5 MiB4.42 MiB+ 938.49 KiB
/wp-admin/media-new.php0.375 s0.246 s-0.129 s3.49 MiB4.42 MiB+ 948.1 KiB
/wp-admin/edit-tags.php?taxonomy=category0.203 s0.251 s+0.048 s3.5 MiB4.51 MiB+ 1 MiB
/wp-admin/post-new.php?post_type=page0.608 s1.247 s+0.639 s6.05 MiB7.64 MiB+ 1.59 MiB
/wp-admin/options-discussion.php0.433 s0.380 s-0.053 s3.5 MiB4.42 MiB+ 934.63 KiB
/wp-admin/edit-comments.php0.254 s0.253 s-0.001 s3.52 MiB4.46 MiB+ 961.68 KiB
/0.305 s0.497 s+0.192 s3.43 MiB4.36 MiB+ 944.09 KiB
Average 0.412 s0.623 s+0.211 s3.97 MiB5.05 MiB+ 1.08 MiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

PHP
Language % Lines of code Comment lines Files
PHP99.1%69,21260,8741,102
SVG0.4%288152
JSON0.2%14503
XSLT0.2%14501
XML0.1%4401
Markdown0.0%2401
Total 69,858 60,875 1,160

PHP Code Analysis | More results »

Lines of code 57,742
Total complexity 14,540
Median class complexity 6.0
Median method complexity 1.0
Most complex class Yoast\WP\SEO\Generated\Cached_Container
Most complex function WPSEO_Option_Titles::validate_option()
Classes 843
Methods 5,178
Functions 51

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Database Tables 5

Options wp_options 4

User Metadata wp_usermeta 2

Meta Boxes

{
    "dashboard": {
        "wpseo-dashboard-overview": {
            "title": "Yoast SEO Posts Overview",
            "context": "normal"
        },
        "wpseo-wincher-dashboard-overview": {
            "title": "Yoast SEO / Wincher: Top Keyphrases",
            "context": "normal"
        }
    },
    "post": {
        "wpseo_meta": {
            "title": "Yoast SEO",
            "context": "normal"
        }
    },
    "page": {
        "wpseo_meta": {
            "title": "Yoast SEO",
            "context": "normal"
        }
    }
}

Roles 2

ID Name
wpseo_managerSEO Manager
wpseo_editorSEO Editor

Capabilities 4

PHP Error Log 1 lines

[30-Apr-2025 17:41:56 UTC] PHP Deprecated:  strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /wp-admin/admin-header.php on line 41
See also: All tests for this plugin, How to Hide Yoast SEO Admin Menus and More