openline.nl website review

37 files are served with short cache lifetimes, so returning visitors download them again (679 KiB).

9 files block the first paint until they finish downloading. Deferring or inlining them could save about 2.5 s.

7 images could be 419 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 1.0 s faster on a phone.

Your mobile performance score is 64. Pages that score under 90 lose visitors before the first paint.

About 82 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 750 ms faster on a phone.

About 122 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 300 ms faster on a phone.

Polyfills for old browsers add 11 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 250 ms faster on a phone.

4 long tasks block the main thread while loading, the longest for 176 ms. During a long task the page ignores taps.

22 KiB could be saved by minifying JavaScript.

17 KiB could be saved by minifying CSS.

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.

1 third-party service load with your homepage (Google Fonts), adding 37 KiB and 0 ms of main-thread time.

Your largest element takes 7.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The first text or image appears after 4.1 s on a phone. Good is under 1.8 s.

The page becomes fully interactive after 8.0 s. Good is under 3.8 s.

Visually, the page fills in at 5.0 s (Speed Index). Good is under 3.4 s.

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

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 80 ms to 87 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

7 images (749 KiB) 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 (604 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

2 images are downloaded at several times the size a phone draws them, for example DSC_0348.jpg at 1,920 px wide, shown at 390 px. Resized copies would save about 219 KiB.

By the Sustainable Web Design model, a visit to your homepage emits about 0.40 g of CO₂e: 48.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Links must have discernible text: 4 elements on the page fail this check, rated serious by axe-core.

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

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

1 link inside paragraphs relies on colour alone to stand out.

Headings skip levels (h2 → h5), 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.

There are 2 <h1> headlines (“Uw outsourcings-partner” and “Titel”). One clear main headline is easier for people and search engines.

The homepage links to 51 pages on openline.nl and 2 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://openline.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://openline.nl/over-open-line, https://openline.nl/onze-diensten, https://openline.nl/onze-diensten/managed-cloud-services, https://openline.nl/onze-diensten/managed-cloud-services/cloud-services, https://openline.nl/onze-diensten/managed-cloud-services/managed-workspace and https://openline.nl/onze-diensten/managed-cloud-services/security and 9 others have no meta description, so Google writes the search snippet from whatever text it finds.

We fetched 15 pages linked from your homepage (of 29 found) and read each the way a search engine does.

2 errors were logged to the browser console while the page loaded, for example “The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.”.

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 analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

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 390 words of visible text.

Opening the homepage sets 18 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 2 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.