carstens.com website review

About 308 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 130 ms faster on a phone.

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 350 ms.

Shopify costs a phone 166 ms of main-thread work and 324 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.

8 third-party services load with your homepage (Shopify, reamaze.com and Cloudflare CDN and others), adding 592 KiB and 312 ms of main-thread time.

8 files are served with short cache lifetimes, so returning visitors download them again (231 KiB).

3 long tasks block the main thread while loading, the longest for 143 ms. During a long task the page ignores taps.

About 70 KiB of CSS is downloaded but never applied on this page.

2 images could be 38 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

6 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.

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

For real visitors the layout shifts by 0.76 (75th percentile). Good is under 0.1.

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

Visually, the page fills in at 5.9 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 2.0 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 86 ms to 89 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' largest content (lcp) went from 2.0 s to 1.9 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

2 images weigh 1.1 MB together. On a phone connection a single image that size takes seconds.

Your homepage downloads 2.4 MB in 188 requests on a phone: images 833 KiB (30), other files 808 KiB (111) and scripts 717 KiB (39). Under 2 MB keeps phones on slow connections fast.

2 images (1.1 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.

Binder_Case_Pack_Banner_Mobile_6035eb8d-2ab8-4766-aeb2-4d36e is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

By the Sustainable Web Design model, a visit to your homepage emits about 0.69 g of CO₂e: 83.3 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: 17 elements on the page fail this check, rated serious by axe-core.

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

1 tap target is too small or too close together to hit reliably with a finger.

The viewport tag blocks pinch-zoom, which low-vision visitors rely on.

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

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

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

2 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 223 pages on carstens.com and 1 external page.

Your Organization JSON-LD is missing sameAs (social profiles), description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

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

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

https://carstens.com/customer_authentication/redirect has no meta description, so Google writes the search snippet from whatever text it finds.

https://carstens.com/customer_authentication/redirect, https://carstens.com/pages/carepod-lite, https://carstens.com/pages/carepod-pro, https://carstens.com/pages/carepod, https://carstens.com/pages/carepod-locks and https://carstens.com/pages/carepod-catalog have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 15 pages linked from your homepage (of 95 found) and read each the way a search engine does.

11 of 49 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

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

Your homepage shows a street address but no LocalBusiness JSON-LD, so Google and AI assistants have to guess your address, hours and phone from the page text.

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

The homepage shows no opening hours. If customers visit or call, show when.

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

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 725 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics and Google Tag Manager (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 11 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.