Help articles General Questions

A description of the Flywheel technology stack

The technology that powers WordPress sites on Flywheel, and makes them fast and secure is multi-layered and complex. Hopefully we can shed a little light on the parts and pieces that make up the Flywheel server infrastructure.

Caching Layer The Flywheel caching is powered by the Varnish cache server. Varnish is an incredibly fast memory-based HTTP accelerator, that we’ve customized with rules specific to WordPress and our environment.
Web Server Layer We use the Nginx web server to serve up static files, and act as a reverse proxy to the processes that run PHP. Nginx also handles all of the rewrite rules associated with serving up WordPress websites.
PHP Layer We run chrooted PHP-FPM instances to execute the PHP code that runs the WordPress code. This PHP is optimized with things like APC.
Database Layer MySQL powers the database. Pretty straightforward installation, with a performance tuned configuration.

Of course these are just the major components that power a site on Flywheel. In addition to these there are myriad other services and processes that provide enhanced security, performance, manageability, and reliability. Together these systems comprise the Flywheel platform, which enables your sites to run incredibly fast and be incredibly secure.

Have other questions? We’re happy to answer questions related to our technology stack. Contact support and we’d love to chat!


  • Organizations

    Everything you need to know about managing your team with our Organizations feature.

    8 Articles
  • Blueprints

    Learn everything there is to know about what Blueprints are, how to create them and how to make the best use of them.

    5 Articles
  • Simple SSL

    All there is to know about our free, automatically installed and activated SSL certificates.

    8 Articles
  • Staging

    How to get the most out of Staging, which allows you to duplicate a site, make changes, and then push those changes to the live site.

    6 Articles
  • Local by Flywheel

    Everything you need to know about our amazing, free local WordPress development software for Mac and PC.

    5 Articles
  • White Label

    Everything you need to know about our Whitelabel subscriptions for branding and reselling Flywheel.

    4 Articles
  • Getting started

    Everything you need to know to get your first Flywheel site up and running.

    8 Articles
  • Frequently Asked

    The most commonly asked questions, and a few we just think you should know.

    24 Articles
  • General Questions

    Questions that don't fit elsewhere, or those about Flywheel in general.

    56 Articles
  • Billing & Accounts

    Questions relating to payments, billing and managing your account on Flywheel.

    12 Articles
  • Domain Names

    Details about how to manage DNS and point your domain names at Flywheel.

    10 Articles
  • Database

    How to access your WordPress database to make changes and update content.

    3 Articles
  • Security

    Details about everything Flywheel does to makes your site so secure.

    12 Articles
  • Plugins

    Which plugins work best, which plugins work worst, and everything in between.

    7 Articles

Get in touch with us

Standard support hours are M-F 9am-5pm CDT and 24/7 emergency support.

WordPress experts

Try it yourself. It's free & takes less than 60 seconds. Sign up

× How to manage 50+ WordPress Sites

Here's a free ebook!

How to manage 50+ WordPress Sites