Antoine Guillou - Front-End Developer
Unclaimed profileFreelance front-end developer ✌️ Antoine Guillou
I'm a front-end developer from Paris, available for freelance work.
Web health
60/100
measured 23/10/2026
Issues found
25
on their own site
Reviews
0
from clients on Dr Urls
What Dr Urls found on antoineguillou.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.
- highMissing landmark elements
WCAG 1.3.1 requires that page structure is programmatically determinable.
- highPage contains no internal links
Pages without internal links prevent crawlers from discovering other content on your site and trap users with no way to continue navigating.
- 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.
- 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.
- mediumMissing skip-to-content navigation link
WCAG 2.4.1 requires a way to bypass blocks repeated on every page.
- mediumScripts without async or defer
Synchronous scripts halt HTML parsing while the browser downloads and executes them.
- mediumThin content (too few words)
Google's Helpful Content system explicitly targets thin, low-value pages.
- mediumUser scaling disabled in viewport
Disabling pinch-to-zoom prevents users with low vision from enlarging text and content to a readable size.
- lowBelow-the-fold images not lazy loaded
Loading all images immediately increases initial page weight and competes with critical resources for bandwidth.
- lowETag header missing on resources
Without ETags, browsers cannot efficiently validate whether cached resources have changed.
And 4 more. 7 security findings are not listed on this public page; the site's owner sees them in a full audit after claiming it.
Work with Antoine Guillou - Front-End Developer
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