euroallergy.com website review

15 images could be 514 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.7 s faster on a phone.

The page has 5,612 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Your mobile performance score is 68. Pages that score under 90 lose visitors before the first paint.

8 third-party services load with your homepage (Shopify, Klaviyo and Google Tag Manager and others), adding 1.6 MB and 541 ms of main-thread time.

11 files block the first paint until they finish downloading. Deferring or inlining them could save about 600 ms.

About 405 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 150 ms faster on a phone.

Shopify costs a phone 316 ms of main-thread work and 969 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.

A phone's processor spends 3.8 s on main-thread work while loading, 1.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

Klaviyo costs a phone 104 ms of main-thread work and 309 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 long tasks block the main thread while loading, the longest for 101 ms. During a long task the page ignores taps.

17 files are served with short cache lifetimes, so returning visitors download them again (69 KiB).

Polyfills for old browsers add 19 KiB JavaScript that modern phones do not need.

About 12 KiB of CSS is downloaded but never applied on this page.

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.

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 7.1 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Funda Colchón Antiácaros Certificada ECARF - EuroAllergy”.

The page becomes fully interactive after 14.7 s. Good is under 3.8 s.

Visually, the page fills in at 7.3 s (Speed Index). Good is under 3.4 s.

Real visitors wait 232 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

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

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 211 ms to 232 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 1.6 s to 1.5 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.9 MB in 426 requests on a phone: scripts 1.4 MB (151), other files 1.0 MB (183) and images 965 KiB (41). Under 2 MB keeps phones on slow connections fast.

1 image is downloaded at several times the size a phone draws it, for example euroallergy-fundas-antiacaros-antialergicas-45-x-45-cm-funda at 1,600 px wide, shown at 360 px. Resized copies would save about 92 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 1.12 g of CO₂e: 133.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Documents must have <title> element to aid in navigation: 1 element on the page fails this check, rated serious by axe-core.

4 images have no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 20 elements on the page fail this check, rated moderate by axe-core.

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

Alternative text of images should not be repeated as text: 3 elements on the page fail this check, rated minor by axe-core.

Headings should not be empty: 1 element on the page fails this check, rated minor by axe-core.

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

Your title is only 16 characters: “American Express”. Between 30 and 65 characters leaves room to say what you do and for whom.

There are 2 <h1> headlines (“” and “Terminator - Antiácaros Eléctrico por Ultrasonidos”). One clear main headline is easier for people and search engines.

The homepage links to 178 pages on euroallergy.com and 9 external pages.

https://euroallergy.com/collections/all and https://euroallergy.com/customer_authentication/redirect have no <title>, so Google invents the link text in results.

https://euroallergy.com/customer_authentication/redirect is marked noindex but linked from your homepage. If it is meant to be found, remove the noindex.

/, https://euroallergy.com/policies/shipping-policy, https://euroallergy.com/collections/fundas-almohada-antiacaros, https://euroallergy.com/collections/fundas-colchon-antiacaros and https://euroallergy.com/collections/fundas-nordicos-antiacaros all use the title “American Express”. Search engines can't tell which page to show for a search, so each competes with the others.

https://euroallergy.com/collections/all, https://euroallergy.com/customer_authentication/redirect, https://euroallergy.com/policies/shipping-policy, https://euroallergy.com/collections/fundas-almohada-antiacaros, https://euroallergy.com/collections/fundas-colchon-antiacaros and https://euroallergy.com/collections/fundas-nordicos-antiacaros have no meta description, so Google writes the search snippet from whatever text it finds.

https://euroallergy.com/customer_authentication/redirect has no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 60 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.

We found no call-to-action buttons or links (such as “Book a demo” or “Get a quote”) anywhere on the homepage.

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

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 2,205 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics, Google Tag Manager, Klaviyo and Meta Pixel (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 14 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 28 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.