Quadra: our custom-designed, fully managed Ultra High Availability (HA), self-healing web hosting platform – designed to be 100% reliable, secure and insanely fast
With over 25 years experience in managing our own network and web hosting for thousands of websites, we’ve invested passionately into developing and perfecting a unique platform to deliver the fastest website speeds – especially from power-hungry CMS’s like WordPress – and the highest reliability. High availability (HA) web hosting at its very best… and possibly the fastest web hosting on the planet!
Our goal was to create the kind of highly redundant hosting platform which large enterprises use for their sites, but without the hefty price tag usually accompanying such a service. But much more than that we wanted it to have multilayer security built-in and with automated backup and restore.
When combined with our QFAST TURBO CACHE – which stores optimised versions of static pages and images in RAM right on the edge of our network – you can achieve at least 200% speed increase. The sub-100ms TTFB (Time to First Byte) that this creates for uses is also very much appreciated by search engines like Google – getting your site high up the rankings as it’ll be tagged as a fast and reliable site.
Load balancing for HA Reliability
One of the key features of the Quadra architecture is our bank of load balancers. Three of these work in unison for automatic failover protection with a 1 second switchover. On our Webmate Pro with Qfast Turbo Boost package, we run ultra-high-performance load balancers which also perform hardware caching of website pages in RAM to make your site the fastest it can be for every device that connects.
These load balancers distribute web requests to the best web server – usually distributing evenly to maintain load but also intelligently monitoring for high traffic to any particular site and isolating or maximising its visitors to maintain speeds for all websites in the cluster. Not only that, these also perform advanced security filtering and DDoS protection. Insane amounts of RAM used on these servers, typically 256GB per server.
Web Servers
Our bank of Web Servers do the heavy lifting work of building pages for visitors from storage and SQL clusters. These are our most powerful servers and feature one “dumb” cluster node which handles primary admin, FTP and runs security sentries – and typically 3 web nodes per cluster to create 4 potentially live servers. Each Web Cluster also features a semi-air-gapped backup node that sits there just in case there’s a major failure. This backup is a bare metal machine with its own storage and SQL which does very little work for the vast majority of time but is on hand if there’s a problem or we need to perform maintenance on all three web servers in the cluster.
Web servers need lots of cores to dedicate to each visitor where possible, typically 48 cores per node. They also need lots of RAM, typically 96GB per node.
Clustered SQLs
Often, much of the “load” in a web server environment is in fetching data from databases – particularly on modern sites which heavily depend on databases like WordPress.
A “family” of SQL servers work together in Multi Master-Master replication to share the load whilst remaining perfectly in sync – so uptime is greatly improved. Often, most downtime with other ISPs during “scheduled maintenance” which needs to happen sometimes daily – with a clustered SQL, that can be performed without any downtime at all – scheduled or not.
These servers are heavy in RAM in order to serve as much data from fast memory as possible. As they are heavy in compute functions too, fast CPUs are essential.
Backups. Then Backups of Backups.
If there’s one thing we’ve learnt over our 25 years of hosting websites is that you can never have enough backups. Server failure is a fact of life – and happens all the time. The key is having the backups and platform that can cope with those outages without breaking a sweat.
But to ensure that we cover all bases, and are prepared for extreme outages or security issues, we keep backups, a lot of them – and at no extra cost to you! Snap-shotting of virtual server images, duplicating those between NAS storage engines and offsite, having scheduled 90 day backups of all sites (and duplicating those to multiple locations) and 4-hourly backups of SQLs are just some of the ways we ensure we’re prepared for any eventuality. It also allows you to revert to any website state in the last 90 days effortlessly – so you won’t need those backup plugins or offsite backup services that clog up your WordPress even more.
Possibly the fastest self-healing, High-Availability hosting platform on the planet
Enjoy a better hosting experience without even having to think about it with our WebMate Pro hosting plans and our uniquely powerful and reliable Quadra Platform: An award-winning enterprise-grade web hosting solution, meticulously designed and managed in-house by our experienced systems team with three simple goals: Fastest Speeds, ultimate reliability and the best value.