How hosting affects speed

You can optimize every image (and, on WordPress, install every speed plugin), and your site will still be slow if it is sitting on a bad server. Hosting is the foundation of performance, and one of the most overlooked factors. On WordPress and other self-hosted sites, you choose the host. On Squarespace, Shopify, Webflow and Wix, hosting is built into the platform.

What hosting has to do with speed

Your web host is the server (or set of servers) that stores your website files and sends them to visitors. Speed is affected by:

How powerful the server hardware is
How many other websites share the same server
How close the server is to your visitors
Whether the server has caching and a CDN built in
How well the server software is configured

All of these vary widely between hosting providers and plans. On Squarespace, Shopify, Webflow and Wix, the platform looks after them for you: see On a hosted platform.

The problem with cheap shared hosting

This applies if you choose your own host, as most WordPress sites do. Shared hosting puts many websites on a single server: WordPress's own documentation describes it as your site living "on a server along with many others", with very little control over the server settings. Your site competes for the same processor, memory, and network bandwidth as all those neighbours.

When a neighbor site gets a spike in traffic, your site slows down. When the server is under load, your Time to First Byte (TTFB), the time before any data arrives at a visitor's browser, can creep up to several seconds before any page content even starts loading.

A slow TTFB is like a car that takes ten seconds to start before it can move. No amount of acceleration helps.

This does not mean shared hosting is always bad. Some providers run tight, well-managed shared environments. But the cheapest plans from the cheapest providers are often a real performance drag.

What managed WordPress hosting offers

Managed WordPress hosting (like Flywheel, WP Engine, and Kinsta) is configured specifically for WordPress sites. It typically includes:

Server-side caching built in, no need for a separate caching plugin. WP Engine calls theirs EverCache and Flywheel calls theirs FlyCache; both list it as standard on their plans
A CDN to serve files from locations near your visitors. Flywheel's runs on Fastly; WP Engine's and Kinsta's run on Cloudflare, and Kinsta turns theirs on by default for new sites
Faster hardware and storage
Fewer neighbours per server, or an isolated environment per site
Automatic updates and security monitoring

The result is noticeably faster Time to First Byte and a better foundation for the rest of your performance optimizations to build on.

Cheap shared hosting

Neighbours

Many sites share one server and compete for its processor, memory and bandwidth.

Caching and CDN

Not built in on the cheapest plans.

Time to First Byte

Can creep up to several seconds when the server is under load.

Cost

The lowest.

✓

Managed WordPress hosting

Neighbours

Fewer per server, or an isolated environment per site.

Caching and CDN

Server-side caching and a CDN built in.

Time to First Byte

Noticeably faster.

Cost

Usually several times a basic shared plan.

We recommend managed WordPress hosting for most clients

If your WordPress site is on budget shared hosting and speed is a concern, migrating to a managed host is often the single biggest improvement we can make. Talk to us about whether it makes sense for your site.

On Squarespace, Shopify, Webflow and Wix, hosting comes with the platform, so changing host means changing platform. That's a rebuild rather than a hosting move, so talk to us before going down that road.

On a hosted platform

On Squarespace, Shopify, Webflow and Wix, the platform runs the servers. What's left to you is what you put on the site:

Platform	The platform handles	What you control
Squarespace	Hosting on Squarespace's own servers, which it says can support significantly high amounts of traffic	Page size (Squarespace suggests keeping pages under 5 MB), large images, fonts (no more than two is its general rule), custom code and third-party embeds, and the number of URL redirects
Shopify	Fast global servers with no bandwidth limit, a Cloudflare CDN, and server-level settings that are already optimized	Your theme, the apps you've installed, and any third-party code you've added, including tag managers
Webflow	Hosting, with your site delivered through Cloudflare's network	Image sizes (large images are the most common cause of slow loading), linked assets, third-party integrations, interactions and animations, and embedded content
Wix	A CDN, and automatic compression of images under 25MB	Large images or videos, heavy animations, third-party apps, and inefficient custom code. Content from third-party apps and iFrames comes from other servers, so Wix can't optimize it

On Shopify, your theme, your apps and any third-party code are the biggest factors Shopify names: see Shopify apps explained. For images on any platform, see images and speed.

Custom-coded sites: speed depends on the host your developer chose and how the site was built. Ask your developer.

Time to First Byte (TTFB)

TTFB is the time between a visitor's browser sending a request and receiving the first byte of data back from your server. It is a direct measure of server responsiveness.

TTFB	Status
800 ms or less	Good
More than 800 ms, up to 1,800 ms	Needs improvement
Over 1,800 ms	Poor

PageSpeed Insights reports TTFB alongside your real-visitor data, though Google labels it an experimental metric rather than a Core Web Vital. A poor TTFB points directly at your hosting setup, not your images or plugins. On a hosted platform, the server side is the platform's job: Shopify, for example, says server-level settings are already optimized by its infrastructure. Wix collects TTFB along with Core Web Vitals, and you can view your site's speed metrics from your dashboard. If your TTFB looks poor on a hosted platform, tell us. See measuring your speed.

Server location

Your server's physical location matters. If your audience is primarily in the US and your server is in Frankfurt, Germany, every request has to cross the Atlantic and back, and that round trip is added to every single file the page needs.

If you choose your own host, most hosting providers let you choose a data center region when setting up. For most US-based businesses, a US server is the right choice. A CDN can offset much of the location disadvantage for global audiences. Shopify, Webflow and Wix deliver your site through a CDN that's part of the platform.

The honest tradeoff

If you choose your own host, better hosting costs more, usually several times what a basic shared plan costs. Check the host's own pricing page for current rates, since plans and prices change often. It is a real cost, but it should be weighed against:

The value of a faster user experience
The SEO benefit of better Core Web Vitals
The time saved on support issues caused by slow or unreliable hosting
The security and maintenance features included

For a business website, we consider good hosting a baseline investment, not a luxury.

Common questions

Can I improve my speed without changing hosts?

Yes, image optimization, caching plugins (on WordPress), and reducing third-party scripts all help regardless of host. But if your TTFB is in the poor range (over 1.8 seconds) on a site where you choose the host, no amount of front-end optimization will fully fix the problem. Both layers matter. On Squarespace, Shopify, Webflow and Wix, you can't change host without changing platform, so focus on what you control: see On a hosted platform.

My host says they offer SSD storage and fast servers. Why is my site slow?

Marketing claims about server specs do not always reflect real-world performance. The number of sites sharing your server, the quality of caching, and how WordPress is configured all matter more than raw hardware specs. Test your TTFB with PageSpeed Insights to see the actual server response time. It is also worth checking your plugins: WordPress's own documentation notes that the number of plugins and how well they perform has a big impact, and that deleting the ones you do not need is a significant improvement in itself.

Does WordPress VPS hosting help?

A VPS (Virtual Private Server) gives your site its own allocated resources. You are not competing for CPU and memory with all the other sites on a shared server. This can improve TTFB significantly over shared hosting. Managed WordPress hosting tends to be better configured than generic VPS, but a well-configured VPS is a step up from shared hosting.