Page Speed Optimizer: HTTP/2 Push, Async JavaScript, and Defer CSS

79 Quality Score

Active Installs

17/30

Moderate traction with 6,000 active installs and a popularity score above baseline suggests a loyal niche audience rather than mainstream awareness.

Update Freshness

25/25

A perfect score here, with the plugin updated just days ago and tested against WordPress 7.0.1, signals an actively maintained codebase.

User Rating

14/15

A 94 out of 100 across 64 ratings is exceptional and indicates strong real-world satisfaction from users who took the time to review it.

Support Health

8/15

Zero support threads resolved out of zero opened is a neutral signal at best and could mean either silent users or an absent support channel.

WP Compatibility

15/15

Tested with the latest WordPress release and requiring PHP 7.4 or higher, this scores full marks on the compatibility front.

Scores higher than 68% of indexed plugins

About

HTTP2 Server push, Async JavaScript, Defer Render Blocking CSS, with fine rule set to control js and css on different page types,

Active Installs 6k+

Rating ★★★★½ 4.7/5

Last Updated 2026-08-31 12:29pm GMT

Requires WordPress 4.0+

Tested Up To 7.1

Requires PHP 7.4+

✓ No known vulnerabilities

What It Does

Page Speed Optimizer tackles one of WordPress's biggest performance headaches: render-blocking CSS and JavaScript. It defers non-critical stylesheets, adds async or defer attributes to scripts, and pushes key assets early via HTTP/2 server push. The fine-grained rule set lets you target specific page types, post types, or URLs rather than applying a blanket policy.

Who It's For

This plugin suits developers and site owners running on HTTP/2-enabled hosts who want surgical control over per-page asset loading without manually editing theme code. It is especially useful for content-heavy sites with diverse page templates where a one-size-fits-all defer policy would break layouts or feature functionality. Small business owners comfortable editing PHP or working with staging environments will get the most out of it.

Who Should Skip It

If your site already runs on a managed host like Kinsta, WP Engine, or Pressable, those platforms ship optimized HTTP/2 delivery and you can usually achieve the same result with a lighter tool. Beginners who do not understand what render-blocking actually means should look at Perfmatters or a caching plugin instead, since misconfigured defer rules will silently break scripts.

The Bottom Line

Page Speed Optimizer is a high-quality, actively maintained tool with outstanding user ratings and modern compatibility, making it a safe choice for HTTP/2-enabled sites. The lack of support thread activity is a minor concern, but the recency of updates and breadth of testing compensate. It earns its 78.52 quality score, though anyone on a managed host or uncomfortable with script-loading nuances will be better served elsewhere.

Pick this if you want a similar feature set but prefer an interface with a slightly different rule structure and a more modest install base.