curosleep.com website review

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 750 ms.

Google Tag Manager costs a phone 325 ms of main-thread work and 482 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 1 ms of main-thread work and 445 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 (Google Tag Manager, Clarity and bing.net and others), adding 994 KiB and 405 ms of main-thread time.

About 218 KiB of JavaScript is downloaded but never used on this page.

4 long tasks block the main thread while loading, the longest for 156 ms. During a long task the page ignores taps.

4 files are served with short cache lifetimes, so returning visitors download them again (29 KiB).

About 23 KiB of CSS is downloaded but never applied on this page.

2 images could be 11 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

The page becomes fully interactive after 9.5 s. Good is under 3.8 s.

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

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 181 ms to 179 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

1 image (29 KiB) is 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.

By the Sustainable Web Design model, a visit to your homepage emits about 0.36 g of CO₂e: 42.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

12 tap targets are too small or too close together to hit reliably with a finger.

Scrollable region must have keyboard access: 2 elements on the page fail this check, rated serious by axe-core.

All page content should be contained by landmarks: 2 elements on the page fail this check, rated moderate by axe-core.

Your meta description is only 40 characters: “Beliebte Marke für einen besseren Schlaf”. 70 to 160 characters is enough to sell the click.

The homepage links to 40 pages on curosleep.com and 4 external pages.

Your Organization JSON-LD is missing logo, 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.

There is no /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.

/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, /collections/alle-produkte and /collections/wohlsein-kollektion have no meta description, so Google writes the search snippet from whatever text it finds.

/customer_authentication/redirect, /collections/alle-produkte and /collections/wohlsein-kollektion have no <h1> headline, so visitors and search engines get no clear main topic.

/products/curosleep-ischias-linderung-paket took over 3 s to send its HTML from our server.

We fetched 15 pages linked from your homepage (of 21 found) and read each the way a search engine does.

7 of 26 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

1 error was logged to the browser console while the page loaded, for example “Shopify is not defined”.

2 links from your homepage to your own site are broken, for example https://curosleep.com/pages/uber-uns (network).

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://curosleep.com/customer_authentication/redirect?locale=de&region_country=DE.

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.

curosleep.com has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

curosleep.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

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 phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

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 364 words of visible text.

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

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

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 Google Ads, Google Analytics, Google Tag Manager, Klaviyo and Microsoft Ads and 1 more (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 12 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 17 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.