acon.fi website review

12 images could be 673 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 900 ms faster on a phone.

8 third-party services load with your homepage (ZenDesk, Yotpo and Clarity and others), adding 2.2 MB and 820 ms of main-thread time.

Your mobile performance score is 62. Pages that score under 90 lose visitors before the first paint.

About 581 KiB of JavaScript is downloaded but never used on this page.

4 files block the first paint until they finish downloading. Deferring or inlining them could save about 450 ms.

A phone's processor spends 3.5 s on main-thread work while loading, 1.8 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

ZenDesk costs a phone 215 ms of main-thread work and 435 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.

11 files are served with short cache lifetimes, so returning visitors download them again (256 KiB).

The page has 2,463 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Yotpo costs a phone 196 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.

Shopify costs a phone 115 ms of main-thread work and 1,017 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 long tasks block the main thread while loading, the longest for 133 ms. During a long task the page ignores taps.

Polyfills for old browsers add 18 KiB JavaScript that modern phones do not need.

About 16 KiB of CSS is downloaded but never applied on this page.

11 KiB JavaScript is shipped twice across bundles.

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.

3 KiB could be saved by minifying JavaScript.

Your largest element takes 10.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Kolme Halloween-asuihin pukeutunutta lasta istuu yhdessä AC…”.

The page becomes fully interactive after 21.0 s. Good is under 3.8 s.

Visually, the page fills in at 6.4 s (Speed Index). Good is under 3.4 s.

Scripts block taps and scrolling for 212 ms in total while the page loads. Good is under 200 ms.

The layout shifts by 0.104 while loading, so content jumps under the reader's thumb. Good is under 0.1.

2 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 108 ms to 119 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 1.1 s to 1.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 4.2 MB in 281 requests on a phone: scripts 1.5 MB (98), images 1.0 MB (21) and other files 811 KiB (129). Under 2 MB keeps phones on slow connections fast.

3 images (684 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.

1 image is downloaded at several times the size a phone draws it, for example sul-liikuntahanke.png at 2,500 px wide, shown at 366 px. Resized copies would save about 96 KiB.

2 images further down the page (291 KiB) 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 1.19 g of CO₂e: 142.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 button has no accessible name, so screen readers announce just “button”.

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

1 image has 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.

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

1 form field has no label, so screen readers announce an empty box and autofill guesses.

Headings skip levels (h2 → h4), 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, Organization and WebSite) but with 2 problems, for example “Organization: missing name”.

The homepage links to 141 pages on acon.fi and 42 external pages.

/customer_authentication/redirect has no <title>, so Google invents the link text in results.

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

/customer_authentication/redirect and /collections/acon-x-trampoliinit have no meta description, so Google writes the search snippet from whatever text it finds.

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

/customer_authentication/redirect and /collections/jaakiekko took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 59 found) and read each the way a search engine does.

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

The page uses 1 deprecated browser API that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

2 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://cdn-widget-assets.yotpo.com/ReviewsStarRatingsWidget/BsS8XFZBJ7Il5SORvyNyOlXAREHIY…”.

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

1 link go through two or more redirects, for example https://www.acon.fi/customer_authentication/redirect?locale=fi&region_country=FI.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

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 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 779 words of visible text.

DMARC is set to p=none, so mail pretending to be acon.fi is still delivered. Reports are on, so moving to quarantine is the next step.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Klaviyo and Microsoft Clarity (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 8 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 26 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.