Server Info – System Health & Diagnostics Suite

by Usman Ali Qureshi

Description

Server Info provides a practical dashboard for inspecting the hosting environment behind a WordPress site. It brings important WordPress, PHP, database, caching, certificate, and diagnostic details together without changing the public site.

All diagnostic features are free. The optional Support area offers one-time voluntary payments through Freemius; paying does not unlock or restrict plugin functionality.

Overview and diagnostics

Server hostname, IP address, protocol, operating system, web server, and resource usage.
SSL/TLS issuer, hostname, expiry date, and remaining days, with graceful unavailable states.
Optional domain registration expiry and registrar lookup, disabled by default.
PHP version, limits, extensions, configuration summary, and a detailed phpinfo view.
Database version, size, charset, collation, limits, and largest tables.
WordPress version, memory, debugging, permalinks, theme, and plugin status.
OPcache, Redis, Memcached, object cache, and output buffering detection.
Configuration, file permission, cron, and error-log diagnostics.

Administrator controls

Optional admin bar environment HUD.
Compact optional admin footer summary.
Display schemes and custom background/text colors.
Settings for external domain-expiry lookup and admin display elements.

The dashboard and HUD are available only to users with the manage_options capability.

External Services

Server Info includes the Freemius SDK for optional usage opt-in and voluntary one-time supporter payments. Freemius communication is subject to user consent where requested by the SDK. The checkout script is loaded from checkout.freemius.com only after an administrator selects a support amount. See the Freemius privacy policy and terms.

The optional domain-expiry setting is disabled by default. When enabled and an administrator opens the dashboard, the plugin sends the site’s registrable domain to an HTTPS RDAP service operated by the relevant registry or rdap.org. If RDAP cannot provide a result, it may query the relevant public WHOIS server over port 43. These services use the domain name to return public registration data. See the RDAP bootstrap service, RDAP.org, and the applicable registry’s terms and privacy policy.

The SSL/TLS certificate check connects from the WordPress server to the site’s own hostname on port 443 to read the public certificate. No visitor data is sent.

Installation

Install and activate Server Info from Plugins -> Add New.
Open Settings -> Server Info.
Review Settings before enabling the optional domain-expiry lookup.

Screenshots

Overview with server health, hosting, SSL/TLS, and optional domain-expiry details.
Database information, limits, and largest-table summary.
WordPress configuration and plugin status.
PHP configuration, limits, and extension summary.
Diagnostics with actionable health checks.
Settings for the admin HUD, footer, external lookup, and appearance.
Voluntary one-time support plans, with every feature remaining free.
Additional lightweight WordPress plugins from the author.

Faq

Does it change my frontend?

No. Server Info is an administrator diagnostic tool. The optional admin bar HUD can appear while an administrator views the frontend, but it is not shown to visitors.

Does the domain-expiry lookup run automatically?

No. It is disabled by default and can be enabled from the plugin’s Settings tab.

Does supporting the plugin unlock features?

No. Support payments are voluntary, one-time contributions. Every plugin feature remains available without payment.

Who can view Server Info?

Only users with the manage_options capability can access the dashboard and its server details.

Does it detect caching?

Yes. It checks for common signals from OPcache, Redis, Memcached, persistent object caching, and output buffering.

Reviews

excellent work

By Chris (liossis) on July 8, 2026

Very useful, with pro UI

Thanks Usman

Good work!

By M Hassan Raza (hassanraza) on December 9, 2024

Quick and easy. Thank you for the efforts. 😉

Unveiling Server Insights

By Muhammad Tariq (mtariqsmd) on July 12, 2023

The Server Info WordPress plugin offers valuable insights into your server environment. With comprehensive features, an intuitive interface, and efficient performance, it simplifies troubleshooting and optimization. A must-have for all WordPress site owners.

Server Info menu item missing on some sites

By David Favor (dfavor) on September 21, 2019

No indication of reason of problem. The "Server Info" menu item simply fails to appear on some sites.

Not worth the hassle

By hussong on May 4, 2019

Plugin asks to share data upon activation and requires to fill in a form before deactivating. Doesn't even show that much helpful data.

useful

By onico0 on April 24, 2019

nice after a migration, to know on which server we are

Essential website info - a must have...

By Bjarne Oldrup (oldrup) on March 18, 2019

Was I running PHP 5.6 og 7.1 on this website? How much memory is available. MariaDB or MySQL? When troubleshooting you always need this kind of info, and Server Info shows that. No bells and whistles, simple and clean.

Great for some needs, but not quite there for others...

By Roger Holman (flight750) on March 17, 2019

This plugin says that it "... will show you useful information about the hosting server you are using..." including Server OS. It does report SOME useful information about the server OS, but a key aspect NOT included is what OS distribution it is running (e.g. Debian, Ubuntu, Fedora, etc.) When I uninstalled it, it prompted with a question as to why I was uninstalling (I think this is also a good idea, BTW). I provided comments and links to potential locations the author might look to use that will help determine what the distribution is.

Crashed with Fatal Error

By paulswarthout on March 20, 2018

This is exactly what I needed. Unfortunately, it didn't work -- or rather, it crashed with two notices: Undefined index 'SERVER_ADDR' and undefined index 'SERVER_ADMIN' and one fatal error "Call to undefined function mysqli_connect()". In all fairness, I'm using version 4.9.4 of WordPress and the documentation shows that the Server Info plugin hasn't been tested with it. But I didn't expect a fatal error crash. This WordPress site is on a 3rd party shared hosting platform running IIS. I have a plugin that I am developing that works flawlessly on my other WordPress sites but fails on this one. I suspect an out-of-date component -- either PHP or MySQL or something unexpected. I was hopeful that the Server Info plugin would help me track down the culprit.

Works great

By Arcelius on September 7, 2017

I like that it shows info on the dashboard and more info on a separate page!

Changelog

1.1.0

Added SSL/TLS certificate issuer, hostname, expiry, and remaining-day information.
Added an optional domain registrar and expiry lookup, disabled by default.
Added display settings for the admin bar HUD and compact admin footer.
Added multiple appearance schemes and custom color controls.
Added more useful PHP configuration details and improved unavailable states.
Added voluntary one-time support plans through Freemius; all features remain free.
Added a More Plugins view and refreshed the administrator interface.
Improved privacy disclosures, checkout loading, responsive layout, and failure handling.

1.0.0

Initial release with the system dashboard, admin bar HUD, footer summary, and environment badges.