How to improve your website speed in 5 steps

Every extra second your website takes to load has a real cost. Visitors who leave before seeing the content, customers who abandon halfway through a purchase, Google positions that took months of work to earn. Website speed stopped being a technical detail and became a business variable.

The problem is that most companies only notice this when they are already paying the price — falling traffic, low conversion rates, and a website that seems to work but is in practice working against results.

Why website speed matters so much

Google made speed an official ranking factor through metrics called Core Web Vitals. These are three indicators that measure the real experience of a user loading a page: loading speed of the main content, how quickly the site responds to interactions, and visual stability during loading.

A website classified as "Poor" on these metrics is at a direct disadvantage against competitors — even if the content is better. Google rewards user experience, and speed is a central part of that equation.

Beyond SEO, there is a direct impact on visitor behaviour. Slow pages increase bounce rate, reduce time on site, and negatively affect conversion across forms, e-commerce checkouts, and any other digital touchpoint.

How to know if your site has a speed problem

Before taking any action, you need to measure. The most accessible tool is Google PageSpeed Insights, free and available for any URL. It assigns a score from 0 to 100 for both mobile and desktop, and identifies the issues with the highest impact on performance.

A score below 80 is already a signal that there is work to be done. Below 50, the problem is serious enough to be actively hurting results.

The 5 steps to improve website speed

Step 1 — Diagnose before acting

The first mistake is trying to fix things without understanding what is slow. A website can have a low score for very different reasons — heavy images, excessive code, a slow server, third-party scripts blocking the load. Each cause has a different solution, and treating the wrong symptom is a waste of time and money.

The right diagnosis starts with PageSpeed Insights and, for a deeper analysis, with Google Search Console, which shows real performance across all pages of the site over time.

Step 2 — Fix the image problem

Unoptimised images are the most common cause of slow websites. A high-resolution photo loaded directly without processing can weigh dozens of times more than necessary to be displayed on screen.

The solution involves converting images to modern formats, reducing file size without visible quality loss, and configuring loading so that images outside the visible area are only loaded when the user scrolls to them. The impact of this step is often the most visible in the final result.

Step 3 — Clean up code and remove what is not needed

Websites that have grown over time accumulate code. Plugins installed and forgotten, scripts from tools no longer in use, CSS written for elements that no longer exist. All of this continues to be loaded by the browser every time someone visits the site.

Identifying and removing this dead weight — and ensuring the remaining code is structured efficiently — has a direct impact on site response speed, especially on mobile devices with slower connections.

Step 4 — Review the hosting infrastructure

A well-built website on a slow server will still be slow. The quality of web hosting defines the initial response time before anything else loads. Low-cost shared hosting — where the same server serves hundreds or thousands of sites simultaneously — is one of the most underestimated causes of poor performance.

The right infrastructure for each stage of the business makes a measurable difference to results. For sites with significant traffic, the presence of a content delivery network (CDN) that serves files from servers geographically close to the visitor is another important factor.

Step 5 — Ensure stability and continuous monitoring

Improving speed is not a one-time task. New content, platform updates, integrations with external tools — all of these can introduce performance regressions over time. A site that was fast in January may be slow by June if there is no ongoing monitoring.

Setting up alerts, periodic performance reviews, and a clear process for evaluating the impact of each change to the site is what separates a site that stays fast from one that silently degrades.

What to do when the problem is in the site's structure

There are cases where optimisation fixes have limited impact because the problem is in the foundation — the platform chosen, the code architecture, or technical decisions made when the site was built that were not designed with performance in mind.

When this happens, the most effective solution is not to keep adding fixes on top of a weak structure. It is to approach the site with performance as a starting point, not as an afterthought.

Next step

If your website has a low PageSpeed Insights score, or if you suspect that speed is costing you customers and Google positions, the most direct path is a technical analysis that identifies exactly what is happening.

Lanoar builds and optimises websites for Portuguese and European companies with technical performance integrated from the ground up — not as an afterthought. If your website needs to be faster, talk to us and we will analyse what is holding your results back.