All in One SEO vs SiteSEO - SEO Simplified
Two WordPress plugins head to head: ranking, active installs, downloads and ratings, from our daily tracking of the WordPress.org directory.
These aren’t all alternatives to each other — they do different jobs — so this page compares popularity only, not features.
At a glance
All in One SEO leads the WordPress.org popular list today at #21, ahead of SiteSEO - SEO Simplified at #129. All in One SEO has the largest install base, roughly 4× the next: 2M+ active installs against 500K+ for SiteSEO - SEO Simplified. Downloads this week: All in One SEO 117,328 and SiteSEO - SEO Simplified 7,594. Ratings: All in One SEO 4.7★ from 5,205 and SiteSEO - SEO Simplified 4★ from 9 reviews.
| Metric | All in One SEO | SiteSEO - SEO Simplified |
|---|---|---|
| Popular rank today | #21 ▬ | #129 ▬ |
| Active installs | 2M+ | 500K+ |
| Downloads, last 7 days | 117,328 | 7,594 |
| Rating | 4.7★ (5,205) | 4★ (9) |
| Last updated | Aug 28, 2026 | Aug 14, 2026 |
| Current version | 5.0.1.1 | 1.4.1 |
| Best rank on record | #21 | #129 |
| Days in the top 50 | 51 | 0 |
| On WordPress.org since | Mar 2007 | Dec 2023 |
| Sites detected by our detector | 22 | 0 |
Highlighted cells mark the strongest figure in each row. Rank and installs are from the latest WordPress.org capture; downloads are the last seven captured days.
Ranking history Lower is better
Active installs
Downloads per day
More comparisons
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- SiteSEO - SEO Simplified vs SmartCrawl SEO checker, analyzer & optimizer
- SiteSEO - SEO Simplified vs Rank Math SEO
- SiteSEO - SEO Simplified vs Slim SEO
Frequently asked questions
Which is more popular, All in One SEO or SiteSEO - SEO Simplified?
By active installs, All in One SEO: 2M+ sites run it against 500K+ for SiteSEO - SEO Simplified, according to WordPress.org figures captured on September 13, 2026.
Which ranks higher on WordPress.org, All in One SEO or SiteSEO - SEO Simplified?
All in One SEO, at #21 on the WordPress.org popular plugins list today, with SiteSEO - SEO Simplified at #129. The ranking reflects recent installs and moves daily, which is why this page shows the history rather than one snapshot.
Are All in One SEO or SiteSEO - SEO Simplified alternatives to each other?
Not all of them. Some of these plugins do different jobs and many sites run more than one. This page compares their popularity, not their features.
Where do these numbers come from?
WordPress.org publishes each plugin’s active install count and its position on the popular list. This site records both every day, along with per-day downloads and ratings, so the charts above show how the plugins have moved over time rather than a single day.