What Is a Stack?

In hosting, a stack is a system of software designed to run on a server and support a website. It consists of an operating system, a web server, a database, and a programming language.

Why Use a Stack?

Without a stack, you wouldn’t be able to support and serve a website. A stack is one of the fundamental mechanisms underlying modern web development.

Customize Your Nexcess Cloud Stack

You can configure your PHP version through the Client Portal. Get in touch and our team will help you to get started.

The Nexcess Application Stack

Built to Scale

Grow with an open-source platform built on OpenStack and designed from the ground up. The Nexcess Cloud is reliable, redundant, and scalable to customer solutions of all sizes.

OpenStack, Kolla, Ansible, Docker

Deploy Near-Instant Asset Caching

Deliver assets near-instantly to your end-users with NGINX: an open-source, high-performance HTTP server. Positioned in front of your applications, NGINX is configured to perform short-lived, in-memory caching of frequently used assets.

Nginx with SSL termination, HTTP/2, Gzip compression & Bad bot management

Engineered for Better Application Performance

Combine industry standard application compatibility and increased performance with a lower memory footprint, by using the latest version of the Apache web server for application delivery.

Apache 2.4 with PageSpeed

Powered by Server Side Scripting

Seamlessly switch between PHP versions for testing and upgrades.

We support the latest versions of PHP using RedHat’s Software Collections (SCL). We can also serve requirements for scripting languages such as NodeJS, Python and Ruby.

PHP 5.6, 7.0, 7.1, 7.2 & 7.3
NodeJS 8 & 10
Python 2.7, 3.4 & 3.6
Ruby 2.2, 2.3, 2.5

Backend Application Caching

Utilize a memory-backed data store that can be used as an application cache and message broker. The Nexcess Cloud includes a carefully tuned Redis instance designed for application caching and acceleration.

Redis 3, private Redis instance with multiple database support for each Nexcess Cloud account

A High-Performance Database

Run a carefully tuned and tested configuration of MariaDB: an open-source enhanced version of MySQL database server, written by the original creators of MySQL.

MariaDB 10.2

Cloud Containers

We know that requirements change as your business grows. Our on-demand Container services layer lets you add services to your Cloud accounts, including as ElasticSearch, Apache Solr, and Varnish.

These cloud Containers live inside the Nexcess Cloud adjacent to your existing services. They can be deployed in seconds, are fully managed by our beyond management team, and are accessible over a secure cloud-only container network.

Docker, Swarm, Mesh Networking, ElasticSearch, Solr, Varnish

Improved Scalability

Cutting-edge software improves auto scaling performance.

Superior Performance

Application compatibility and server stability mean quicker load times.


Up-to-date software keeps your site safe and secure.

Discover Nexcess cloud solutions

Find the right solution for your site with flexible upgrades and easy to understand pricing.