martenso.com website review

About 222 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 900 ms faster on a phone.

Your mobile performance score is 70. Pages that score under 90 lose visitors before the first paint.

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 500 ms.

Klaviyo costs a phone 206 ms of main-thread work and 317 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 2.2 s on main-thread work while loading, 1.1 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

7 third-party services load with your homepage (Klaviyo, Google Tag Manager and Shopify and others), adding 646 KiB and 360 ms of main-thread time.

About 42 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.

6 long tasks block the main thread while loading, the longest for 152 ms. During a long task the page ignores taps.

Polyfills for old browsers add 19 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 50 ms faster on a phone.

5 files are served with short cache lifetimes, so returning visitors download them again (11 KiB).

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 8.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.

The page becomes fully interactive after 9.2 s. Good is under 3.8 s.

Visually, the page fills in at 4.6 s (Speed Index). Good is under 3.4 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 2.1 MB in 203 requests on a phone: other files 817 KiB (118), scripts 770 KiB (65) and images 300 KiB (9). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 0.58 g of CO₂e: 69.7 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

ARIA input fields must have an accessible name: 2 elements on the page fail this check, rated serious by axe-core.

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

Interactive controls must not be nested: 1 element on the page fails this check, rated serious by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 2 elements on the page fail this check, rated moderate by axe-core.

Banner landmark should not be contained in another landmark: 1 element on the page fails this check, rated moderate by axe-core.

Document should not have more than one banner landmark: 1 element on the page fails this check, rated moderate by axe-core.

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

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

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.

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

Your <h1> is empty.

Open Graph is missing og:title and og:description, so shared links fall back to guesses.

No twitter:card tag. X falls back to Open Graph, which is incomplete here.

The homepage links to 157 pages on martenso.com and 8 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.

/, https://www.martenso.com/collections/nieuw, https://www.martenso.com/collections/shop, https://www.martenso.com/collections/jeans, https://www.martenso.com/collections/skinny-broeken and https://www.martenso.com/collections/slim-broeken and 9 others 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://www.martenso.com/collections/nieuw, https://www.martenso.com/collections/shop, https://www.martenso.com/collections/jeans, https://www.martenso.com/collections/skinny-broeken, https://www.martenso.com/collections/slim-broeken and https://www.martenso.com/collections/straight-broeken and 8 others have no meta description, so Google writes the search snippet from whatever text it finds.

Your homepage links to 1 page by a URL that isn't its canonical one, for example https://www.martenso.com/collections/broeken, whose canonical is https://www.martenso.com/collections/pasvormen. Linking straight to the canonical URL saves crawlers a detour and keeps ranking signals on one address.

We fetched 15 pages linked from your homepage (of 71 found) and read each the way a search engine does.

13 of 58 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

The homepage has only about 164 words of visible text; thin pages give Google and first-time buyers little to go on.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

Before a visitor clicks anything, the page loads Google Tag Manager, Klaviyo and Pinterest Tag (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 10 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 16 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.