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Async JS and CSS vs Site Scripts & Speed Manager (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Async JS and CSS

Async JS and CSS

4.2(51)

800 active installs

Free

Updated 8 years ago
View Async JS and CSS
VS
Site Scripts & Speed Manager

Site Scripts & Speed Manager

0(0)

0 active installs

Free

Updated 3 days ago
View Site Scripts & Speed Manager

Quick Verdict

As of April 2026, Async JS and CSS has a higher user rating (4.2/5 from 51 reviews) and leads in active installations (800 vs 0). Both are free WordPress plugins. Async JS and CSS has accumulated 114K+ total downloads while Site Scripts & Speed Manager has 48.

Detailed Comparison

Rating
4.2/5Async JS and CSS
◄
Site Scripts & Speed ManagerN/A
Total Reviews
51Async JS and CSS
◄
Site Scripts & Speed Manager0
Active Installs
800Async JS and CSS
◄
Site Scripts & Speed Manager0
Total Downloads
114K+Async JS and CSS
◄
Site Scripts & Speed Manager48
Support Resolution
N/AAsync JS and CSS
Site Scripts & Speed ManagerN/A
Last Updated
8 years agoAsync JS and CSS
►
Site Scripts & Speed Manager3 days ago
First Released
2013Async JS and CSS
Site Scripts & Speed Manager2026
Age
13 yearsAsync JS and CSS
Site Scripts & Speed Manager1 month
WP Requires
2.6+Async JS and CSS
Site Scripts & Speed Manager5.8+
PHP Requires
false+Async JS and CSS
Site Scripts & Speed Manager7.4+
Business Model
FreeAsync JS and CSS
Site Scripts & Speed ManagerFree
Latest Version
1.7.13Async JS and CSS
Site Scripts & Speed Manager2.3.0

Rating Breakdown

Async JS and CSS

4.2/5(51 reviews)
5
71%
4
6%
3
6%
2
4%
1
14%

Site Scripts & Speed Manager

0/5(0 reviews)
5
0%
4
0%
3
0%
2
0%
1
0%

Frequently Asked Questions

Is Async JS and CSS or Site Scripts & Speed Manager more popular?
Async JS and CSS has 800 active installations while Site Scripts & Speed Manager has 0. Async JS and CSS is the more widely-used plugin as of April 2026.
Which has better ratings — Async JS and CSS or Site Scripts & Speed Manager?
Async JS and CSS has a 4.2/5 rating from 51 reviews, while Site Scripts & Speed Manager has a 0/5 rating from 0 reviews.
Are Async JS and CSS and Site Scripts & Speed Manager free?
Async JS and CSS is free and Site Scripts & Speed Manager is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Async JS and CSS or Site Scripts & Speed Manager?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Async JS and CSS was last updated 8 years ago and Site Scripts & Speed Manager was last updated 3 days ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.