Is LH Add Headers free?

Yes, LH Add Headers is free to use. It is available as a free plugin on WordPress.org.

How many websites use LH Add Headers?

LH Add Headers has 10 active installations as tracked by WordPress.org.

What are the best LH Add Headers alternatives?

Popular alternatives to LH Add Headers include LiteSpeed Cache, Speed Optimizer – The All-In-One…, WP-Optimize – Cache, Compress images…. You can compare them side-by-side on our comparison pages.

Does LH Add Headers work with the latest WordPress?

LH Add Headers has been tested up to WordPress 4.8.28. It requires WordPress 3.1.0+ and PHP false+.

PluginSift

LH Add Headers

Name: LH Add Headers
Author: shawfactor

Adds the ETag, Last-Modified, and if appropriate 304 headers to HTTP responses generated by WordPress for more efficient caching.

By shawfactor·Caching·Free

·10 active installs·Updated 8 years ago

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As of April 2026, LH Add Headers is a WordPress caching plugin with 10 active installations and a 0/5 rating0. It has been downloaded 2.4K+ times in total. Requires WordPress 3.1.0+ and PHP false+. Available on WordPress.org since 2016. Last updated 8 years ago — may have compatibility concerns. Top alternative: LiteSpeed Cache.

0/5Rating

10active installs

2.4K+total downloads

10 yearssince 2016

Overview

A 304 Not Modified HTTP Header tells your visitors that nothing has changed since their last visit. This is important as without this header visitors may be downloading your webpages from scratch each time, slowing down their experience and your site.

Generally if you do not pass 304 Not Modified HTTP Header through your HTTP header, crawlers will fetch your whole website and then compare the content of your site with the already indexed content to check whether anything new has been updated on your website or not. But this process consumes a lot of your server resource and bandwidth.

You can know more about it here.