Rapport SEO : chello.nl
Généré le 28 avril 2026 · 25 constatations · 8.5s
Les sites institutionnels privilégient l'accessibilité, la sécurité et une indexation rigoureuse pour permettre aux citoyens et usagers d'accéder facilement à l'information.
Détail des scores
Score moyen Général : 50
Projection du score
Amélioration estimée sur la base des constatations identifiées dans ce rapport
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Détail par module
Toutes les constatations (21)
Critique (4)
- highsitemap
Invalid sitemap format
Sitemap does not appear to be valid XML
Ensure sitemap.xml is properly formatted XML
- highsitemap
Empty sitemap
Sitemap contains no URLs
Add URLs to the sitemap
- highpage experience
Intrusive interstitials detected
Found 3 potential popup/overlay elements
Reduce intrusive interstitials — they hurt mobile experience and can trigger Google penalties
- highindexing checker
Canonical points to different domain
Canonical: https://www.ziggo.nl/ points to ziggo.nl
Ensure the canonical URL points to the same domain unless cross-domain canonicalization is intended
Moyen (7)
- mediumheaders
CORS allows all origins
Access-Control-Allow-Origin: * allows any website to make requests
Restrict CORS to specific trusted origins if the page handles sensitive data
- mediumstructured data
Missing @type in schema
A structured data object has no @type
Add a @type property (e.g. Organization, WebSite)
- mediumrobots
Important resources blocked
robots.txt blocks /assets/ — search engines can't render the page properly
Allow crawlers to access CSS, JS, and image resources
- mediumtechnology
Render-blocking scripts
7 scripts load synchronously without async/defer
Add async or defer to non-critical scripts to improve page load speed
- mediumtechnology
Mixed content detected
2 resources loaded over HTTP on an HTTPS page
Update all resource URLs to use HTTPS
- mediumcontent
Very low text-to-HTML ratio
Text/HTML ratio is 2% (recommended: >5%)
Increase meaningful text content relative to HTML markup
- mediumcrawl budget
Potential crawl traps
Found 2 URLs with faceted/pagination patterns
Consider blocking these URL patterns via robots.txt to preserve crawl budget
Faible (10)
- lowheaders
Missing referrer-policy
Referrer-Policy is not set. Full URLs may leak to third parties.
Add Referrer-Policy: strict-origin-when-cross-origin
- lowstructured data
Missing Organization schema
No Organization or LocalBusiness structured data found
Add Organization schema with name, logo, and contact info
- lowstructured data
Missing WebSite schema
No WebSite structured data found
Add WebSite schema with SearchAction for sitelinks search box
- lowtechnology
Many third-party domains
19 external domains — may impact performance and privacy
Reduce third-party dependencies or self-host critical resources
- lowmobile
Unresponsive images
18 images lack srcset or responsive sizing
Use srcset and sizes attributes for responsive images
- lowrate limits
No rate limiting detected
No explicit rate-limit headers or 429 responses detected. AWS CloudFront WAF provides platform-level protection.
Implement rate limiting (e.g., 429 Too Many Requests) to protect against brute-force attacks
- lownews mentions
No press or news presence
No press pages found on the site and no external news mentions detected
Create a /news or /press page with company updates — this builds authority and earns links
- lowbrand checker
No web app manifest
No manifest.json linked — PWA features unavailable
Add a web app manifest for installability and brand customization
- lowbrand checker
Missing og:site_name
Open Graph site name is not set
Add og:site_name meta tag for consistent social sharing
- lowpage experience
No lazy loading on images
22 images without lazy loading
Add loading="lazy" to below-the-fold images for faster initial page load
AI Fix Prompt
Copiez ce prompt dans ChatGPT ou Claude pour obtenir des instructions de correction détaillées étape par étape
Fix all SEO issues found in the audit of chello.nl.
Prioritize high-severity issues first, then medium. For each fix, make the actual code change — don't just describe what to do.
```json
{
"domain": "chello.nl",
"scores": {
"overall": 90,
"performance": 0,
"seo": 81,
"accessibility": 100,
"bestPractices": 90,
"security": 95
},
"findings": [
{
"module": "headers",
"severity": "medium",
"title": "CORS allows all origins",
"description": "Access-Control-Allow-Origin: * allows any website to make requests",
"recommendation": "Restrict CORS to specific trusted origins if the page handles sensitive data"
},
{
"module": "structured-data",
"severity": "medium",
"title": "Missing @type in schema",
"description": "A structured data object has no @type",
"recommendation": "Add a @type property (e.g. Organization, WebSite)"
},
{
"module": "robots",
"severity": "medium",
"title": "Important resources blocked",
"description": "robots.txt blocks /assets/ — search engines can't render the page properly",
"recommendation": "Allow crawlers to access CSS, JS, and image resources"
},
{
"module": "sitemap",
"severity": "high",
"title": "Invalid sitemap format",
"description": "Sitemap does not appear to be valid XML",
"recommendation": "Ensure sitemap.xml is properly formatted XML"
},
{
"module": "sitemap",
"severity": "high",
"title": "Empty sitemap",
"description": "Sitemap contains no URLs",
"recommendation": "Add URLs to the sitemap"
},
{
"module": "technology",
"severity": "medium",
"title": "Render-blocking scripts",
"description": "7 scripts load synchronously without async/defer",
"recommendation": "Add async or defer to non-critical scripts to improve page load speed"
},
{
"module": "technology",
"severity": "medium",
"title": "Mixed content detected",
"description": "2 resources loaded over HTTP on an HTTPS page",
"recommendation": "Update all resource URLs to use HTTPS"
},
{
"module": "content",
"severity": "medium",
"title": "Very low text-to-HTML ratio",
"description": "Text/HTML ratio is 2% (recommended: >5%)",
"recommendation": "Increase meaningful text content relative to HTML markup"
},
{
"module": "crawl-budget",
"severity": "medium",
"title": "Potential crawl traps",
"description": "Found 2 URLs with faceted/pagination patterns",
"recommendation": "Consider blocking these URL patterns via robots.txt to preserve crawl budget"
},
{
"module": "page-experience",
"severity": "high",
"title": "Intrusive interstitials detected",
"description": "Found 3 potential popup/overlay elements",
"recommendation": "Reduce intrusive interstitials — they hurt mobile experience and can trigger Google penalties"
},
{
"module": "indexing-checker",
"severity": "high",
"title": "Canonical points to different domain",
"description": "Canonical: https://www.ziggo.nl/ points to ziggo.nl",
"recommendation": "Ensure the canonical URL points to the same domain unless cross-domain canonicalization is intended"
}
]
}
```Recommandations pour votre secteur
- 1Assurer la conformité aux normes d'accessibilité WCAG 2.1 AA
- 2Mettre en place tous les en-têtes de sécurité recommandés
- 3Vérifier que le sitemap couvre toutes les pages clés
- 4Optimiser le temps de chargement des pages à moins de 2 secondes
- 5Garantir un affichage parfaitement responsive sur toutes les pages
Liste de contrôle SEO pour Général
Conseils pour les sites de type Mixte
- →Créez des pages de destination ciblées pour chaque audience
- →Appliquez des métadonnées distinctes par groupe de pages
- →Segmentez votre sitemap par typologie de contenu
Contexte SEO local
Les Pays-Bas constituent l'un des marchés les plus matures d'Europe, avec un usage mobile très fort.
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