LYONDEV | Agence Web
Unclaimed profileAgence Communication & Web Lyon · Designer Sites Vitrine
Agence communication Lyon : designer site web, création vitrine & e-commerce. Marketing digital sur-mesure. 15 ans d'expertise. Devis gratuit ✓
Web health
52/100
measured 21/10/2026
Issues found
42
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on lyondev.fr
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.
- highLinks implemented with JavaScript only
While Google can execute JavaScript, it does not always follow JavaScript-based navigation.
- highTime to First Byte (TTFB) is slow
TTFB directly impacts all subsequent loading metrics.
- mediumAbove-fold images not prioritized
The Largest Contentful Paint (LCP) element is often a hero image.
- mediumCache-Control header missing
Proper caching prevents browsers from re-downloading unchanged resources, dramatically improving repeat visit performance.
- mediumExcessive DOM size
A large DOM tree directly impacts Interaction to Next Paint (INP), a Core Web Vital.
- mediumForm inputs missing associated labels
Unlabelled form fields are unusable for screen reader users, who represent a significant portion of potential customers.
- mediumForm inputs missing autocomplete attribute
WCAG 1.3.5 requires input purpose to be programmatically determined for inputs collecting user information.
- 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.
- 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.
- mediumLink has empty anchor text
Anchor text is one of the strongest signals search engines use to understand the content of the linked page.
- mediumLink has malformed or empty href
Malformed links cannot pass link equity and waste crawl budget when search engines attempt to follow them.
- mediumScripts without async or defer
Synchronous scripts halt HTML parsing while the browser downloads and executes them.
And 18 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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