uvconcept.com website review

The page has 5,528 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

A phone's processor spends 4.1 s on main-thread work while loading, 1.3 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Your mobile performance score is 66. Pages that score under 90 lose visitors before the first paint.

About 369 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 450 ms faster on a phone.

8 third-party services load with your homepage (Shopify, Google Tag Manager and Trusted Shops and others), adding 1.5 MB and 577 ms of main-thread time.

9 files block the first paint until they finish downloading. Deferring or inlining them could save about 450 ms.

Shopify costs a phone 301 ms of main-thread work and 985 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.

Google Tag Manager costs a phone 233 ms of main-thread work and 341 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 images could be 127 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

8 files are served with short cache lifetimes, so returning visitors download them again (41 KiB).

About 30 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

5 long tasks block the main thread while loading, the longest for 115 ms. During a long task the page ignores taps.

12 KiB could be saved by minifying JavaScript.

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

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

Your largest element takes 8.6 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “UV Concept GmbH”.

The page becomes fully interactive after 14.2 s. Good is under 3.8 s.

Visually, the page fills in at 6.7 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 2.4 s on a phone. Good is under 1.8 s.

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

Your homepage downloads 4.1 MB in 440 requests on a phone: other files 1.5 MB (244), scripts 1.2 MB (96) and images 1.0 MB (57). Under 2 MB keeps phones on slow connections fast.

Firefly.png is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

By the Sustainable Web Design model, a visit to your homepage emits about 1.18 g of CO₂e: 141.1 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

8 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

Scrollable region must have keyboard access: 2 elements on the page fail this check, rated serious by axe-core.

All page content should be contained by landmarks: 7 elements on the page fail this check, rated moderate by axe-core.

Heading levels should only increase by one: 1 element on the page fails this check, rated moderate by axe-core.

4 visible links have no text or label, so screen readers cannot say where they go.

Headings should not be empty: 5 elements on the page fail this check, rated minor by axe-core.

Elements with visible text labels do not have matching accessible names. (1 element).

No meta description, so Google writes its own snippet from whatever text it finds.

Your title is only 28 characters: “UV Concept – UV Concept GmbH”. Between 30 and 65 characters leaves room to say what you do and for whom.

No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

Your <h1> is empty.

The homepage links to 237 pages on uvconcept.com and 2 external pages.

/collections/trinkwasser-1, /collections/trinkwasser_nach-dvgw-und-o-norm-zertifizierte-uvc-anlagen, /collections/trinkwasser_einfamilienhaus, /collections/trinkwasser_mehrfamilienhaus, /collections/trinkwasser_legionellen-pravention-mit-uvc-anlagen-fur-hotels and /collections/trinkwasser_autarke-versorgung and 8 others have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 102 found) and read each the way a search engine does.

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 1,474 words of visible text.

The page uses urgency cues (a countdown or limited-time wording).

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 9 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 15 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.