lab701.nl website review

7 images could be 3.5 MB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.6 s faster on a phone.

43 files are served with short cache lifetimes, so returning visitors download them again (772 KiB).

About 347 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.9 s faster on a phone.

10 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.8 s.

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

The page has 1,584 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

8 third-party services load with your homepage (Hubspot, Hotjar and leadinfo.net and others), adding 620 KiB and 351 ms of main-thread time.

Polyfills for old browsers add 59 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

7 long tasks block the main thread while loading, the longest for 133 ms. During a long task the page ignores taps.

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 22.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Maximaliseer jouw Sales met Online en Inbound Marketing: Ge…”.

The page becomes fully interactive after 23.4 s. Good is under 3.8 s.

Visually, the page fills in at 5.8 s (Speed Index). Good is under 3.4 s.

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

Scripts block taps and scrolling for 237 ms in total while the page loads. Good is under 200 ms.

The first text or image appears after 1.9 s on a phone. Good is under 1.8 s.

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 5.4 MB in 87 requests on a phone: images 4.2 MB (28), scripts 968 KiB (21) and fonts 115 KiB (6). Under 2 MB keeps phones on slow connections fast.

1 image further down the page (59 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 1.52 g of CO₂e: 182.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

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.

Headings skip levels (h1 → h6, h3 → h6 and h3 → h6), which makes the page harder to scan with a screen reader.

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

Your meta description is 178 characters; Google truncates after about 160, so the end of your pitch is cut.

The homepage links to 52 pages on lab701.nl and 24 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.

The HTML your server sends has 1,188 of the 3,383 words a browser shows. AI crawlers don't run JavaScript, so they miss the rest.

There is no https://www.lab701.nl/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.lab701.nl/nl/scan-je-website-om-deze-te-verbeteren has under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

We fetched 15 pages linked from your homepage (of 28 found) and read each the way a search engine does.

4 of 19 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

Large scripts ship without source maps.

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

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 3,383 words of visible text.

Before a visitor clicks anything, the page loads Google Tag Manager, Hotjar and HubSpot (measured from a US location before any click). A consent tool (HubSpot cookie banner) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 11 cookies, 7 of them by other companies (measured from a US location before any click).

Loading the homepage contacts 24 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.