How to speed up an Umbraco website and improve load times

Umbraco

Today's audiences have extremely high expectations and search engines like Google reward sites that meet them. Slow loading times mean frustrated users, higher bounce rates, lower conversions and poorer search performance.

If you're asking "how do I speed up my Umbraco website?", you're asking a question that goes straight to business outcomes: better visibility, happier users, and more ROI from your digital channels.

Thankfully, because Umbraco is a flexible and scalable platform, you're already starting from a strong foundation. But like any engine built for performance, fine‑tuning will deliver the best results.

Why site speed is a business priority

Fast sites aren't just technically impressive, they directly influence your organisation's performance:

Search visibility: Google's Core Web Vitals is a set of metrics that measure user experience and reward faster pages with better rankings. A quicker site isn't just nicer to use, it's more discoverable.
User experience: Faster loading means lower bounce rates and more engaged visitors, which is essential when every second on page counts.
Conversions & campaigns: Whether you're running ads or encouraging donations/enquiries, every fraction of a second you shave off load times improves conversion rates and campaign ROI.

This is why performance optimisation isn't something "nice to do later", it's foundational to digital success.

Three pillars of performance for Umbraco

Here are the core areas we focus on when optimising an Umbraco site for speed.

1. Smart caching for immediate impact

One of the most effective ways to boost performance is through intelligent caching. Think of caching as creating a pre‑assembled version of your pages that can be served instantly when a user lands on them. Without caching, your server has to reconstruct pages from scratch every time which takes precious time.

With Umbraco's caching mechanisms configured effectively, your site can serve up pages faster, handle more visitors without slowing down, and deliver consistent performance even during peak traffic.

If your site currently feels sluggish or struggles under load, this is often the first place to look and the first place users see noticeable improvements.

2. Optimising images & assets

It's surprising how often large images and bulky code slow sites down. Many organisations don't realise their media is costing them performance.

Umbraco includes media tools that intelligently resize and crop images and convert them into optimised next-gen formats like WebP. This means your site delivers smaller, faster loading files without sacrificing image quality making it perfect for mobile users and high-traffic pages.

Combined with techniques like minifying CSS and JavaScript, this makes your pages significantly lighter and faster to load.

3. Lazy loading

Lazy loading is a clever technique that delays loading elements (like images) until they're actually needed, usually when the visitor scrolls to them. Instead of loading everything at once, your site loads the essentials first (the content users see immediately), which makes the initial experience feel faster.

This can dramatically improve key metrics like "time to interactive," meaning users can engage with your site sooner and that's another factor search engines care about.

The SEO advantage: performance equals rankings

Google's Core Web Vitals put a number on user experience, and site speed is a major component. When your pages load faster, search engines view your site as more user‑friendly and are more likely to rank it higher for relevant queries.

For SEO managers and heads of marketing, this means site speed isn't just about technical performance, it's about visibility, traffic, and lead generation. Faster sites tend to perform better in organic search, creating a cycle of improved engagement and rankings.

If you'd like to explore how speed ties into your wider SEO strategy, our SEO team at Yoyo Design can help design a performance driven plan aligned with your business goals.

Why Umbraco (and why Yoyo)

Umbraco is known for being flexible, user‑friendly, and highly customisable, which means you aren't locked into rigid templates or restrictive tech. It scales with your organisation as it grows, supports complex integrations, and gives content teams the control they need without sacrificing performance.

At Yoyo, we're proud to be an Umbraco Gold Partner, meaning our team has the expertise to build, optimise and maintain sites that are both beautiful and high performing. We combine design, performance, and strategic thinking so your website isn't just fast, it delivers real business impact.

What next?

The first step to boosting performance is knowing where your site stands today and what can be improved.

Whether you need a performance audit, ongoing optimisation support, or a full refresh of your digital presence, talk to our team at Yoyo, we'd love to help you turn speed into measurable results.