WordPress plugin comparison
Speed Optimizer vs Website Carbon Calculator
Speed Optimizer
by SiteGround
1M+ installs4.2
Website Carbon Calculator
by Sustainable Web Dev
20+ installs
At a glance
- Speed Optimizer has more active installs: 1M+, against 20+ for Website Carbon Calculator.
- On a typical day, Speed Optimizer is downloaded about 5,525 times, Website Carbon Calculator about 4.
- Website Carbon Calculator has no reviews yet.
- Speed Optimizer was updated more recently: Nov 2, 2026, against Apr 13, 2026 for Website Carbon Calculator.
- Speed Optimizer is tested with a newer WordPress: 7.1.4, against 6.9.11 for Website Carbon Calculator.
- Speed Optimizer has been around longer: since 2014, against 2025 for Website Carbon Calculator.
Line by line
Speed Optimizer leads on 6 of 6 comparable lines.
| Metric | Speed Optimizer | Website Carbon Calculator |
|---|---|---|
| Popular rank | #44 | #27,408 |
| Active installs | 1M+ | 20+ |
| Downloads, last 30 days | 3.5M | 110 |
| Rating | 4.2(641) | No ratings |
| Support threads resolved | 57% | – |
| Tested up to | 7.1.4 | 6.9.11 |
| Search multiplier | ×2.73 | ×0.14 |
| Last release | 8 days ago | 7 months ago |
| Requires PHP | 7.0 | 7.1 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
Tags they share
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