DiagnoSEO – Fast and Automated On-page SEO
Powerful and lightweight SEO plugin for WordPress. The best solution on the market in 2026.
5(9 reviews)
·100 active installs·Updated 1 week agoAs of April 2026, DiagnoSEO is a WordPress AI plugin with 100 active installations and a 5/5 rating from 9 reviews. It has been downloaded 12K+ times in total. Requires WordPress 4.7+ and PHP 7.2+. Available on WordPress.org since 2022. Actively maintained — updated within the last month. Top alternative: SEOPress – On-site SEO & Analytics.
5/59 reviews
100active installs
12K+total downloads
4 yearssince 2022
Overview
DiagnoSEO is a performance-first SEO plugin for WordPress users who want full control without bloat.
DiagnoSEO is the lowest memory WordPress SEO plugin, confirmed by independent performance tests on WP Hive and Plugin Tests.
Built for speed, scalability, and real SEO work, DiagnoSEO stays fast even on large and complex websites. It uses minimal memory, optimized code (less than 100KB of a ZIP file), and a clean architecture designed with Core Web Vitals in mind.
This is not a plugin that adds features at the cost of performance. DiagnoSEO is built for websites where speed, control, and SEO quality actually matter.
You get predictable performance backed by 17+ years of real-world SEO experience, and a plugin especially valued by experienced SEO specialists who need advanced SEO control, p…
Screenshots
Ratings & Reviews
59 reviews
5 ★
9
4 ★
0
3 ★
0
2 ★
0
1 ★
0
Compatibility
| WordPress | 4.7+ requiredTested up to 6.9.4 |
| PHP | 7.2+ required |
Top Alternatives to DiagnoSEO – Fast and Automated On-page…
Frequently Asked Questions
Changelog
1.0
- Plugin created.
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.