uniqure.com website review

Your mobile performance score is 75. Pages that score under 90 lose visitors before the first paint.

About 174 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 750 ms faster on a phone.

1 image could be 59 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 300 ms faster on a phone.

craft.cloud costs a phone 40 ms of main-thread work and 418 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

5 third-party services load with your homepage (juicer.io, Google Tag Manager and craft.cloud and others), adding 798 KiB and 213 ms of main-thread time.

About 32 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 190 ms faster on a phone.

4 files are served with short cache lifetimes, so returning visitors download them again (25 KiB).

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 150 ms.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 100 ms).

1 long task block the main thread while loading, the longest for 72 ms. During a long task the page ignores taps.

Polyfills for old browsers add 6 KiB JavaScript that modern phones do not need.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

Your largest element takes 5.3 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Home hero advocate sophia 2”.

Real visitors wait 274 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.1 s to 1.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Visually, the page fills in at 5.4 s (Speed Index). Good is under 3.4 s.

The page becomes fully interactive after 5.3 s. Good is under 3.8 s.

The first text or image appears after 2.0 s on a phone. Good is under 1.8 s.

3 images have no width and height attributes, so the layout jumps as each one loads.

By the Sustainable Web Design model, a visit to your homepage emits about 0.23 g of CO₂e: 27.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

Elements with visible text labels do not have matching accessible names. (2 elements).

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

Your meta description is 163 characters; Google truncates after about 160, so the end of your pitch is cut.

No twitter:card tag. X falls back to Open Graph, which is set, so this is minor.

The homepage links to 48 pages on uniqure.com and 13 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

There is no https://www.uniqure.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

https://www.uniqure.com/pioneers-leaders, https://www.uniqure.com/pioneers-leaders/our-story, https://www.uniqure.com/pioneers-leaders/leadership, https://www.uniqure.com/pioneers-leaders/our-values, https://www.uniqure.com/pioneers-leaders/partnerships and https://www.uniqure.com/patients-families and 9 others use the same meta description. A description written for each page earns more clicks.

We fetched 15 pages linked from your homepage (of 38 found) and read each the way a search engine does.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

There is no form on the homepage, so every lead has to click through to another page first.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 510 words of visible text.

Before a visitor clicks anything, the page loads Google Analytics and Google Tag Manager (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 5 cookies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 5 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.