radisnoir
Unclaimed profileAgence de communication scientifique · Paris Nice Marseille
Communication scientifique et institutionnelle depuis 2003 : sites web, identité visuelle, SEO et communication responsable. Paris, Nice, Marseille.
Web health
54/100
measured 21/10/2026
Issues found
29
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on radisnoir.com
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.
- 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.
- 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.
- mediumOpen Graph og:image tag missing
Social media posts with images receive significantly more engagement than text-only posts.
- mediumRender-blocking CSS or JavaScript
Render-blocking resources directly impact First Contentful Paint (FCP) and Largest Contentful Paint (LCP), both Core Web Vitals metrics.
- mediumScripts without async or defer
Synchronous scripts halt HTML parsing while the browser downloads and executes them.
- mediumToo many external CSS stylesheets
Multiple CSS files multiply HTTP requests and increase the total blocking time before the page can render.
- lowDuplicate heading text on same page
Duplicate headings reduce the uniqueness and semantic clarity of the page structure.
- lowImages missing responsive srcset
Without srcset, a 1200px wide image is downloaded on a 375px wide mobile screen, wasting bandwidth and slowing load times.
- lowLink is named for screen readers but has no anchor text
Nothing is broken for users.
And 7 more. 3 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 radisnoir.com's public pages. Nothing here is taken from third-party listings.