PluginSift

Async JavaScript vs Site Scripts & Speed Manager (2026)

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

Async JavaScript

Async JavaScript

4.7(102)

80K+ active installs

Free

Updated 2 years ago
View Async JavaScript
VS
Site Scripts & Speed Manager

Site Scripts & Speed Manager

0(0)

0 active installs

Free

Updated 2 days ago
View Site Scripts & Speed Manager

Quick Verdict

As of April 2026, Async JavaScript has a higher user rating (4.7/5 from 102 reviews) and leads in active installations (80K+ vs 0). Both are free WordPress plugins. Async JavaScript has accumulated 2.0M+ total downloads while Site Scripts & Speed Manager has 48.

Detailed Comparison

Rating
4.7/5Async JavaScript
◄
Site Scripts & Speed ManagerN/A
Total Reviews
102Async JavaScript
◄
Site Scripts & Speed Manager0
Active Installs
80K+Async JavaScript
◄
Site Scripts & Speed Manager0
Total Downloads
2.0M+Async JavaScript
◄
Site Scripts & Speed Manager48
Support Resolution
N/AAsync JavaScript
Site Scripts & Speed ManagerN/A
Last Updated
2 years agoAsync JavaScript
►
Site Scripts & Speed Manager2 days ago
First Released
2014Async JavaScript
Site Scripts & Speed Manager2026
Age
12 yearsAsync JavaScript
Site Scripts & Speed Manager1 month
WP Requires
4.6+Async JavaScript
Site Scripts & Speed Manager5.8+
PHP Requires
false+Async JavaScript
Site Scripts & Speed Manager7.4+
Business Model
FreeAsync JavaScript
Site Scripts & Speed ManagerFree
Latest Version
2.21.08.31Async JavaScript
Site Scripts & Speed Manager2.3.0

Rating Breakdown

Async JavaScript

4.7/5(102 reviews)
5
88%
4
4%
3
1%
2
2%
1
5%

Site Scripts & Speed Manager

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

Recent Reviews

Async JavaScript Reviews

by lockbench

Great plugin

A truly great plugin, does exactly what is describing. No extra stuff, great implementation and great support! Thank you!

by gaiusjaugustus

Great plugin and support

I’ve been using this plugin for several months after it was suggested to me by a colleague. The setup was simple, but also gives advanced options that I needed, such as excluding certain scripts. I ha

by W★

Performance promise delivered

Exemplary support, and the plugin does exactly what it promises. This is unfortunately not a given in a time when many other plugins try to cover more and more tasks and end up in dangerous waters. As

Site Scripts & Speed Manager Reviews

No reviews yet

Frequently Asked Questions

Is Async JavaScript or Site Scripts & Speed Manager more popular?
Async JavaScript has 80K+ active installations while Site Scripts & Speed Manager has 0. Async JavaScript is the more widely-used plugin as of April 2026.
Which has better ratings — Async JavaScript or Site Scripts & Speed Manager?
Async JavaScript has a 4.7/5 rating from 102 reviews, while Site Scripts & Speed Manager has a 0/5 rating from 0 reviews.
Are Async JavaScript and Site Scripts & Speed Manager free?
Async JavaScript 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 JavaScript 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 JavaScript was last updated 2 years ago and Site Scripts & Speed Manager was last updated 2 days ago.

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