The Project Company
Unclaimed profileAgence tech & produit à Nantes & Paris · Grinn
Agence tech & produit à Nantes & Paris, Grinn conçoit et développe vos sites, apps mobiles et solutions IA. Du design à la performance. Agréée CII.
Web health
54/100
measured 22/10/2026
Issues found
32
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on grinn.tech
From the audit of their public home page on 22/10/2026, worst first. Each links to what it means and how it is fixed.
- highMissing landmark elements
WCAG 1.3.1 requires that page structure is programmatically determinable.
- 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.
- mediumCache-Control header missing
Proper caching prevents browsers from re-downloading unchanged resources, dramatically improving repeat visit performance.
- mediumFont size too small for mobile
Small text forces mobile users to pinch-to-zoom to read content, creating a poor experience.
- 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.
- mediumToo many external CSS stylesheets
Multiple CSS files multiply HTTP requests and increase the total blocking time before the page can render.
- 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.
And 12 more. 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 grinn.tech's public pages. Nothing here is taken from third-party listings.