LH Add Headers
Adds the ETag, Last-Modified, and if appropriate 304 headers to HTTP responses generated by WordPress for more efficient caching.
Consider an alternative
LH Add Headers shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 9 years ago, and scores 23/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 9 years
- Only tested up to WordPress 4.8 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where LH Add Headers stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| cache-control | >100 |
| caching | >100 |
| expires | >100 |
| headers | >100 |
| last-modified | >100 |
Version adoption
Share of active sites per release.
About LH Add Headers
From the official readme · v1.04Description
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.
Before reading any further
Before reading any further it is important to understand this plugin uses output buffering, in fact the Etag sent by this plugin is a hash of the sites buffered content. If your site uses server side caching this plugin may break the caching functionality. Therefore I suggest that you please make sure you have studied the FAQ, before installation and activation.
Installation
- Upload the entire
lh-add-headersfolder to the/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress. That is it.
Changelog
1.00 April 15, 2016
Initial release.
1.01 May 05, 2016
Code improvement
1.02 May 19, 2016
Fixed customiser issue
1.03 June 22, 2016
Fixed documentation link
1.04 April 30, 2017
Added class check
1.05 May 10, 2017
Keep comments in outputted source
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best LH Add Headers alternatives
All cache-control plugins →FAQ
LH Add Headers: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 4, 2026
Is LH Add Headers free?
Yes. LH Add Headers is free to download and use from the official WordPress.org plugin directory.
Is LH Add Headers safe to use in 2026?
LH Add Headers shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 9 years ago, and scores 23/100 on our health check.
How many websites use LH Add Headers?
LH Add Headers is active on 10+ WordPress websites and has been downloaded 2,868 times since it launched in May 2016. It was downloaded 84 times in the last 30 days.
Does LH Add Headers work with WordPress 7.1?
LH Add Headers is officially tested up to WordPress 4.8.32, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was LH Add Headers last updated?
The latest version, 1.04, was released on May 2, 2017 (9 years ago).
Who makes LH Add Headers?
LH Add Headers is developed and maintained by shawfactor.
What are the best alternatives to LH Add Headers?
The most popular alternatives to LH Add Headers are Cache-Control (1K+ installs), Cache control by Cacholong (500+ installs) and Smart WordPress (20+ installs).
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