Unlimited PHP Workers

Websites hosted on a Bolt in the Servebolt Cloud come with unlimited PHP Workers. This means that your website can scale freely, without running into a limited amount of PHP workers. Other hosting companies often use the number of PHP workers as a differentiator in their pricing model. Even on […]

Environment Information (beta)

The environment file contains information about the context of your hosting environment, and is located in the home directory – if the feature is enabled in the Control Panel. The files are named environment.ini and/or environment.json. The files are identical in content, but formatted differently. Both the ini and json […]


Redis is an in-memory key-value store which can be used as a performance enhancer to speed up web applications. There are plugins available for CMSes and E-commerce most frameworks that are usually easy to set up and configure. Magento comes with built-in support, and for WordPress you’ll need a plugin. […]

Automatic version parameter to asset URLs

In Servebolt Optimizer for WordPress, under Servebolt Optimizer -> Settings, you will find a setting named Add automatic version parameter to asset URLs. This feature adds a timestamp query string to all static assets which results in automatic cache busting. This way you will immediately see new versions of static […]

Cloudflare Image Resize support

In Servebolt Optimizer for WordPress we include a feature which implements the necessary filters in WordPress to make use of Cloudflare’s Image Resize feature. The Image Resize feature in Cloudflare dynamically and automatically resizes your images based on the fly. This feature, in combination with the srcset parameter on <img> […]

Development mode

You can set the site in Development Mode in the site’s settings in our control panel. What this does it bypass all cache allowing for instant updates when files change. Development mode is automatically disabled for production sites (sites with domains added).

Filters and PHP constants

The Servebolt Optimizer plugin and its behavior can be altered by using filters and PHP constants. Usage and examples The concept of using filters and PHP constants are very similar – they are used to change values and behaviors. But they do have their differences. Please see below for an […]

Servebolt Optimizer for WordPress

The Servebolt Optimizer plugin for WordPress adds functionality to implement Servebolt’s best practices for WordPress. This includes database optimizations, log review, automatic cache purge and more. Features Database optimization – Convert tables to InnoDB Database optimization – Add performance improving indexes Automatic Cloudflare cache purge Cloudflare Image Resize-support (beta feature) Cloudflare […]


Magerun is the swiss army knife for managing Magento on the command line (CLI). The command magerun2 is available, and works for Magento 2 installations. It largely replaces and extends most functionality of bin/magento and allows you to manage all parts of Magento from the command line interface (CLI). We’re […]


Elasticsearch is an open-source product that enables you to take data from any source, any format, and search and visualize it in real time. Elasticsearch performs quick and advanced searches on products in the product catalog. Elasticsearch Analyzers support multiple languages, stop words, and synonyms. Servebolt provides managed Elasticsearch instances […]


Access settings can be found in the site settings. This controls what access types are enabled. Enable SSH access enables or disables SSH access to the site. If this setting is off you will not be able to connect using SSH. Enable SFTP access enables or disables SFTP access to […]

PHP Memory limit

The PHP Memory limit setting in the control panel controls how much memory in RAM one PHP process is allowed to use. This setting should be as low as possible for the application running. One PHP process is usually a page view.

Load balancing

Load balancing is a technique that can be used to scale website traffic. Distribute traffic across multiple servers in a cluster or multiple geographical origins. Load balancing for performance Let’s use our own website as an example. We are load balancing our inbound traffic, based on geography. Servebolt.com is running […]


Redirects are an important part of any website. They help users to automatically end up at the correct content if a web resource is moved to another location or protocol. Redirects come in two flavors; 301 and 302. 301 means “Moved Permanently” and should be used when a resource is […]

HTTP/2 Push

The HTTP/2 Push function is activated by default for all our customers. With push, you can pre-load content to your visitors before they even request it themselves!

Gzip Compression

Gzip Compression can reduce the size of a website by more than 50%, thus making it much faster to download over the internet. Compression is automatically enabled, and handled correctly by the Servebolt hosting stack. That means, that the internet-facing webserver is compressing HTML, CSS, JavaScript, JSON, etc on-the-fly. It […]

Image optimization

We are experts at image management and optimization! Our optimization techniques usually cut the size of websites in half! Learn more about our Image Resize options as well as our article on how to optimize for faster images in WordPress.


We make it easy to set up sites for development, staging and production environments. Every Bolt includes support for multiple sites, along with pre-installed server tools for easy site duplication. Unified server environment With Servebolt you don’t need to setup a separate server environment when developing and testing new features, […]