THAT DESIGN LUX S.À R.L.
Unclaimed profileWerbeagentur Luxemburg
THAT DESIGN ist eine kreative Werbeagentur aus Luxemburg – spezialisiert auf Branding, Marketing, Webdesign, Social Media sowie Foto- und Videoproduktion. Als Full-Service-Agentur entwickeln wir maßgeschneiderte Konzepte für B2B- und B2C-Kunden. Der Fokus liegt auf starken Marken, klarer Kommunikation und digitaler Performance – für Lösungen, die wirken und Marken nachhaltig stärken.
Web health
68/100
measured 21/10/2026
Issues found
28
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on that-design.lu
From the audit of their public home page on 21/10/2026, worst first. Each links to what it means and how it is fixed.
- highContent wider than viewport on mobile
Horizontal scrolling on mobile is one of the most common mobile usability failures flagged by Google's Mobile-Friendly Test and Google Search Console.
- highSlow server response time (TTFB > 3s)
Page speed is a confirmed Google ranking factor, and TTFB is the foundational component.
- highTime to First Byte (TTFB) is slow
TTFB directly impacts all subsequent loading metrics.
- mediumDuplicate ID attributes found
Duplicate IDs cause label elements, aria-labelledby, aria-describedby, and fragment link targets to associate with the wrong element.
- mediumExcessive DOM size
A large DOM tree directly impacts Interaction to Next Paint (INP), a Core Web Vital.
- mediumImages missing width and height attributes
Missing image dimensions are the leading cause of Cumulative Layout Shift (CLS), a Core Web Vital and ranking factor.
- mediumScripts without async or defer
Synchronous scripts halt HTML parsing while the browser downloads and executes them.
- mediumStylesheets loaded in body
Stylesheets in the body block rendering of subsequent content and can cause visible layout shifts as styles are applied incrementally.
- lowBelow-the-fold images not lazy loaded
Loading all images immediately increases initial page weight and competes with critical resources for bandwidth.
- lowBroken heading hierarchy
Heading hierarchy provides a semantic outline of the page content.
- lowCSS files are not minified
Unminified CSS files are larger than necessary, increasing download time and delaying rendering.
- lowExcessive DOM nesting depth
Deeply nested DOM trees increase the complexity of CSS selector matching and layout calculations.
And 6 more. 7 security findings are not listed on this public page; the site's owner sees them in a full audit after claiming it.
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Figures on this page come from Dr Urls crawling that-design.lu's public pages. Nothing here is taken from third-party listings.