molecule.se website review

13 images could be 361 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.1 s faster on a phone.

5 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.2 s.

8 third-party services load with your homepage (Hotjar, productfinder.app and Shopify and others), adding 1.6 MB and 944 ms of main-thread time.

Your mobile performance score is 65. Pages that score under 90 lose visitors before the first paint.

About 711 KiB of JavaScript is downloaded but never used on this page.

About 81 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 300 ms faster on a phone.

A phone's processor spends 3.6 s on main-thread work while loading, 1.4 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

10 long tasks block the main thread while loading, the longest for 297 ms. During a long task the page ignores taps.

productfinder.app costs a phone 230 ms of main-thread work and 491 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.

tidio.co costs a phone 92 ms of main-thread work and 515 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.

10 files are served with short cache lifetimes, so returning visitors download them again (143 KiB).

Polyfills for old browsers add 28 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.

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

4 KiB could be saved by minifying JavaScript.

Your largest element takes 8.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The page becomes fully interactive after 19.7 s. Good is under 3.8 s.

Visually, the page fills in at 5.7 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 264 ms in total while the page loads. Good is under 200 ms.

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

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 11.4 MB in 263 requests on a phone: media 6.6 MB (9), images 1.9 MB (47) and scripts 1.7 MB (80). Under 2 MB keeps phones on slow connections fast.

16 images (2.5 MB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.

6 images further down the page (1.1 MB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 3.23 g of CO₂e: 387.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

Headings skip levels (h3 → h5), which makes the page harder to scan with a screen reader.

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

Structured data found (BreadcrumbList, CollectionPage, ImageObject and Organization) but with 1 problem, for example “Organization: url points at a different host (https://molecule.dk)”.

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

The homepage links to 77 pages on molecule.se and 12 external pages.

We fetched 15 pages linked from your homepage (of 32 found) and read each the way a search engine does.

The page uses 1 deprecated browser API that will stop working in future browsers (“Authorization will not be covered by the wildcard symbol (*) in CORS `Access-Control-Allow-Headers`…”).

4 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

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 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.

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 300 words of visible text.

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

Before a visitor clicks anything, the page loads Google Ads, Google Tag Manager, Hotjar, 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 15 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 35 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.