Head-to-head · October 2026
LiteSpeed Cache vs Output Optimizer
LiteSpeed Cache comes out ahead, winning 6 of 7 head-to-head checks against Output Optimizer.
LiteSpeed Cache
LiteSpeed Cache for WordPress (LSCWP) is an all-in-one site acceleration plugin, featuring an exclusive…
Output Optimizer
Removes line-breaks, tabs, double space, html comments and wordpress head-data from html output.
| Metric | LiteSpeed Cache | Output Optimizer |
|---|---|---|
| Active installs | 7M+ | 10+ |
| Downloads (30 days) | 909.9K | 46 |
| Download trend | -63.7% | +64.3% |
| Rating | 4.8/5 | — |
| Reviews | 2,776 | 0 |
| Health score | 88/100 | 23/100 |
| Last updated | 1 month ago | 14 years ago |
| Tested up to | WP 7.1.3 | WP 3.4.2 |
| Support resolved | 53% | — |
| Requires PHP | 7.4+ | Any |
| First released | Jan 2016 | Feb 2012 |
Daily downloads, last 90 days
LiteSpeed CacheOutput Optimizer
Choose LiteSpeed Cache if…
You care most about active installs, downloads (30 days) and reviews.
- One of the most-used plugins on the web — 7M+ active sites
- Loved by users — 4.8/5 from 2,776 reviews
- Tested with the latest WordPress (7.1)
Choose Output Optimizer if…
You care most about download trend.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 13 years
- Only tested up to WordPress 3.4 (latest is 7.1)
Both compete in: Optimize
FAQ
LiteSpeed Cache vs Output Optimizer: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 10, 2026
Which is better, LiteSpeed Cache or Output Optimizer?
LiteSpeed Cache comes out ahead, winning 6 of 7 head-to-head checks against Output Optimizer. Choose LiteSpeed Cache if you care most about active installs, downloads (30 days) and reviews. Choose Output Optimizer if you care most about download trend.
Is LiteSpeed Cache more popular than Output Optimizer?
LiteSpeed Cache is the more popular of the two with 7M+ active installs, compared with 10+ for Output Optimizer.
Can I use LiteSpeed Cache and Output Optimizer together?
Both plugins cover Optimize, so most sites only need one. Running two plugins that do the same job can cause conflicts and slow your site down — pick the one that fits best and remove the other.
Are LiteSpeed Cache and Output Optimizer free?
Yes. Both are free to download from the official WordPress.org plugin directory. Either may also offer paid upgrades from its developer.
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