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Web health
74/100
measured 21/10/2026
Issues found
20
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on undefined.de
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.
- highTime to First Byte (TTFB) is slow
TTFB directly impacts all subsequent loading metrics.
- mediumData table missing header cells
Screen readers rely on <th> elements to announce column and row headers as users navigate table cells.
- mediumDuplicate ID attributes found
Duplicate IDs cause label elements, aria-labelledby, aria-describedby, and fragment link targets to associate with the wrong element.
- mediumIcon-only button missing aria-label
Icon-only buttons are extremely common in modern UIs (hamburger menus, close buttons, search icons), but without aria-labels, they are completely opaque to screen reader users.
- mediumImage file too large (>500 KB)
Images typically account for 50-75% of a page's total weight.
- 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.
- mediumWeb font uses font-display: block
font-display: block hides text for up to 3 seconds while the web font downloads.
- lowETag header missing on resources
Without ETags, browsers cannot efficiently validate whether cached resources have changed.
- lowKey resources not preloaded
Without preloading, the browser discovers critical resources late in the parsing process, delaying their download.
- lowLink is named for screen readers but has no anchor text
Nothing is broken for users.
6 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 undefined.de's public pages. Nothing here is taken from third-party listings.