How can I improve my website’s loading time?

Step 1: Measure loading time and know the target values

Before you change anything, you need baseline values. Use Google PageSpeed Insights to measure at least the home page and two important subpages, each for mobile devices. The tool shows two kinds of data: field data from real visitors, where enough exists, and lab data from a simulated test. The field data is decisive, and you also find it in the Google Search Console in the Core Web Vitals report. Write down the values so you can prove progress.

The three metrics set the bar: LCP measures when the largest visible content has loaded, INP how quickly the page responds to clicks and input, and CLS how much content shifts while loading. In each case the 75th percentile of visits is assessed. A high score in the lab test is a hint but not proof; what matters more is whether real visitors on real devices experience fast pages.

• LCP (largest visible content): good up to 2.5 seconds
• INP (response to input): good up to 200 milliseconds
• CLS (layout shifts): good up to 0.1
• Measure on mobile, separately for home page, service page and contact page

Step 2: Slim down images and videos

Images are the biggest lever on many websites. Photos are often uploaded at original size even though they are displayed small. Scale images to the actual display size, compress them and deliver modern formats such as WebP or AVIF. With several sizes per image, a smartphone loads only the small version. Also specify width and height so the space is reserved and the page does not jump while loading.

Load images below the visible area with a delay, but the main image at the top immediately and with high priority – this image is often the LCP element. Videos should not load automatically. Embedded videos from platforms can be set up so that only a preview image appears and the player loads after a click. This saves data and also fits the requirements of data protection.

Step 3: Check server, hosting and caching

A website cannot appear faster than the server responds. Check the server response time in the measurement tools: if it is permanently high, the cause is often overloaded cheap hosting, outdated server software or a website that recalculates every page on every request. Switch to a current PHP version if your system uses PHP, and clarify with your host whether the plan matches your visitor volume.

Caching avoids unnecessary work: a page cache serves finished pages, browser caching lets returning visitors reuse files locally, a content delivery network brings files closer to the visitor. Also enable compression of the transfer, for example with Brotli or gzip. With WordPress it is also worth looking into the database, where revisions and leftovers accumulate that can slow down every request.

• Check server response time in the measurement tools
• Review hosting plan and PHP version
• Set up page cache and browser caching
• Enable compression of the transfer
• Consider a content delivery network for an international audience

Step 4: Slim down code – CSS, JavaScript and fonts

Every script and every stylesheet has to be loaded and processed. Remove what you do not need: unused libraries, duplicate functions, superfluous plugins. Files can be minified and combined; JavaScript that is not needed for the first display should load later or deferred. Themes and page builders that ship a lot of code for features your site never uses are a particular drag.

Fonts cost time too. Use only the font weights that actually appear, load them in the compact WOFF2 format and serve them from your own server instead of calling external services – that is usually faster and more privacy-friendly. With a suitable setting, a fallback font is shown first so text is readable immediately. For every plugin, check whether its benefit justifies the loading effort.

Step 5: Keep third-party scripts under control

Analytics, advertising pixels, chat windows, maps, social media embeds and cookie banners come from external servers and run outside your control. Each of these services costs loading time, burdens the page’s responsiveness and is also a data protection issue. List all integrated services and remove what has no clear benefit. Old tags in the tag manager are a frequent find.

What remains should be loaded as late and as conditionally as possible: scripts that require visitor consent only after the decision, maps and videos only after a click, chat widgets after the first interaction. That relieves the important first impression, and your privacy solution works cleanly. For legal questions about consent, please seek expert advice; this does not replace legal advice.

Step 6: Improve layout shifts and respon­sive­ness

A high CLS value arises when content shifts during loading because space is missing: images without size information, banners that load late, embeds or fonts that change size on swap. Reserve space for such elements and make sure notice bars do not push the content down. This can often be fixed with a few layout adjustments and improves the impression immediately.

A poor INP value shows that the page shows nothing for too long after a click – usually because heavy scripts block the browser. Less and leaner JavaScript, splitting long tasks and doing without elaborate effects help here. Test on a simple, older smartphone and not only on your fast work device, because that is where weaknesses become visible that your visitors experience every day.

Step 7: Stay on it – measurement, budget and editorial rules

A fast website does not stay fast on its own. Every new plugin, every large image and every additional script gradually worsens the values. Set limits, such as maximum image sizes for the editorial team and a check before new services are integrated. Measure again after larger changes and updates and watch the Core Web Vitals report in the Search Console, because it shows bad trends early.

Sometimes the adjustments are not enough: if the theme, page builder or system architecture itself is the drag, a technical rebuild or relaunch is the more economical solution. Speed is one factor among many for visibility but does not replace good content; above all it improves your visitors’ experience. We analyze your website, implement the measures and set up monitoring so the values stay good in the long term.