Rank Math SEO 1.0.258

Does Rank Math SEO work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
4PHP deprecation warnings
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 236.74 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment
WordPress version6.9
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 3,000,000+
WordPress.org page https://wordpress.org/plugins/seo-by-rank-math/
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Pages 4

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=seo-by-rank-math%2Frank-math.php&plugin_status=all&paged=1&s&_wpnonce=58c84e5af5
Aspect after-activation
HTTP status 200
Load time 0.622 s
Memory usage 3.95 MiB
JS errors None
Resource errors None

Tools → Scheduled Actions

Page screenshot: Tools → Scheduled Actions
URL /wp-admin/tools.php?page=action-scheduler
Aspect menu-item
HTTP status 200
Load time 0.285 s
Memory usage 3.97 MiB
JS errors None
Resource errors None

Rank Math SEO

Page screenshot: Rank Math SEO
URL /wp-admin/admin.php?page=rank-math-registration
Aspect menu-item
HTTP status 200
Load time 0.556 s
Memory usage N/A
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 0.175 s
Memory usage 4.29 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.367 s0.350 s-0.017 s3.77 MiB4 MiB+ 231.65 KiB
/wp-admin/edit.php0.341 s0.405 s+0.064 s3.78 MiB4.05 MiB+ 276.4 KiB
/wp-admin/post-new.php0.823 s0.802 s-0.021 s6.3 MiB6.59 MiB+ 297.54 KiB
/wp-admin/upload.php0.610 s0.399 s-0.211 s3.74 MiB3.94 MiB+ 213.5 KiB
/wp-admin/options-writing.php0.314 s0.290 s-0.024 s3.71 MiB3.92 MiB+ 216.87 KiB
/wp-admin/media-new.php0.467 s0.325 s-0.142 s3.7 MiB3.92 MiB+ 225.06 KiB
/wp-admin/edit-tags.php?taxonomy=category0.313 s0.309 s-0.004 s3.71 MiB3.94 MiB+ 230.23 KiB
/wp-admin/post-new.php?post_type=page0.802 s0.682 s-0.120 s6.29 MiB6.58 MiB+ 291.05 KiB
/wp-admin/options-discussion.php0.326 s0.374 s+0.048 s3.71 MiB3.92 MiB+ 213.37 KiB
/wp-admin/edit-comments.php0.311 s0.310 s-0.001 s3.73 MiB3.94 MiB+ 212.87 KiB
/0.263 s0.181 s-0.082 s4.1 MiB4.29 MiB+ 195.57 KiB
Average 0.449 s0.402 s-0.046 s4.23 MiB4.46 MiB+ 236.74 KiB

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
PHP95.2%50,63126,320430
JavaScript3.4%1,82735476
Sass0.5%26465
JSON0.4%23405
SVG0.2%11405
XML0.1%7601
CSS0.1%327232
Total 53,178 26,752 554

PHP Code Analysis | More results »

Lines of code 45,015
Total complexity 9,548
Median class complexity 21.0
Median method complexity 2.0
Most complex class RankMath\Admin\Importers\AIOSEO
Most complex function RankMath\Tools\Yoast_Local_Converter::get_attributes()
Classes 296
Methods 2,770
Functions 50

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 2

Options wp_options 13

Custom Post Types 1

ID Name
scheduled-actionScheduled Actions

Capabilities 17

PHP Error Log 4 lines

[02-Dec-2025 20:55:16 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 20:55:16 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 20:55:24 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
[02-Dec-2025 20:55:24 UTC] PHP Deprecated:  Function WP_Dependencies-&gt;add_data() was called with an argument that is <strong>deprecated</strong> since version 6.9.0! IE conditional comments are ignored by all supported browsers. in /wp-includes/functions.php on line 6131
See also: All tests for this plugin, How to Hide Rank Math SEO Admin Menus