WordPress plugin comparison
Image Optimizer vs Site Speed Test
At a glance
- Image Optimizer has more active installs: 1M+, against 200+ for Site Speed Test.
- On a typical day, Image Optimizer is downloaded about 5,796 times, Site Speed Test about 5.
- Site Speed Test is rated higher: 5.0 out of 5 from 20 reviews, against 1.7 from 81 reviews.
- Image Optimizer was updated more recently: Sep 22, 2026, against Jul 12, 2024 for Site Speed Test.
- Image Optimizer is tested with a newer WordPress: 7.0.8, against 6.5.14 for Site Speed Test.
- Site Speed Test has been around longer: since 2018, against 2024 for Image Optimizer.
Line by line
Image Optimizer leads on 6 of 7 comparable lines.
| Metric |  Image Optimizer |  Site Speed Test |
|---|---|---|
| Popular rank | #58 | #12,630 |
| Active installs | 1M+ | 200+ |
| Downloads, last 30 days | 174.1K | 110 |
| Rating | 1.7(81) | 5.0(20) |
| Support threads resolved | 100% | – |
| Tested up to | 7.0.8 | 6.5.14 |
| Search multiplier | ×1.28 | ×0.07 |
| Last release | 1 month ago | 2 years ago |
| Requires PHP | 7.4 | 7.3.5 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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