muTum-Website
Unclaimed profileÉcoconception web et création de site internet à Nantes
Écoconception web et création de site internet à Nantes. Site web professionnel et performant, durable et responsable, pour votre projet digital.
Web health
66/100
measured 23/10/2026
Issues found
19
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on mutumwebsite.fr
From the audit of their public home page on 23/10/2026, worst first. Each links to what it means and how it is fixed.
- mediumDuplicate ID attributes found
Duplicate IDs cause label elements, aria-labelledby, aria-describedby, and fragment link targets to associate with the wrong element.
- mediumLink has empty anchor text
Anchor text is one of the strongest signals search engines use to understand the content of the linked page.
- 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.
- lowBelow-the-fold images not lazy loaded
Loading all images immediately increases initial page weight and competes with critical resources for bandwidth.
- lowCSS files are not minified
Unminified CSS files are larger than necessary, increasing download time and delaying rendering.
- lowDuplicate heading text on same page
Duplicate headings reduce the uniqueness and semantic clarity of the page structure.
- lowExcessive inline CSS
Inline CSS cannot be cached separately by the browser, so it is re-downloaded with every page load.
- lowImages not using modern format
WebP images are 25-35% smaller than equivalent JPEG images, and AVIF offers even greater savings.
- lowMissing preconnect hints for critical origins
Each new origin connection requires DNS resolution, TCP handshake, and TLS negotiation, adding 100-300ms of latency.
- lowSocial media preview is incomplete
Incomplete social previews reduce the visual appeal and click-through rate of shared links.
And 1 more. 3 security findings are not listed on this public page; the site's owner sees them in a full audit after claiming it.
Work with muTum-Website
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Claim this page with an email address at mutumwebsite.fr and it becomes yours to edit — with two months of Dr Urls included. Or ask us to take it down, no reason needed: same proof, one click, immediate.
Figures on this page come from Dr Urls crawling mutumwebsite.fr's public pages. Nothing here is taken from third-party listings.