SEO Report: zorgwijzer.nl
Generated April 30, 2026 · 41 findings · 3.4s
Institutional websites prioritize accessibility, security, and proper indexing — citizens and stakeholders need easy access to relevant information.
Score Breakdown
Average General score: 50
Score Projection
Estimated improvement based on the findings in this report
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Module Breakdown
All Findings (38)
Critical (4)
- highheaders
Missing strict-transport-security
HSTS header is missing. The site may be vulnerable to downgrade attacks.
Add Strict-Transport-Security header with max-age of at least 31536000
- highcontent
Images missing alt text
26 image(s) have no alt attribute
Add descriptive alt text to all images for accessibility and SEO
- highaccessibility
26 images missing alt attribute
Images without alt text are inaccessible to screen readers
Add descriptive alt text to all informational images, or alt="" for decorative ones
- highaccessibility
3 form fields without labels
Form inputs without associated labels are inaccessible
Use <label for="id"> or aria-label on every form field
Medium (19)
- mediumdns
SPF uses neutral policy (?all)
The SPF record uses a neutral policy (?all), which provides no protection against spoofing.
Change ?all to ~all (softfail) or -all (hardfail)
- mediumdns
Missing DMARC record
No DMARC policy found at _dmarc subdomain.
Add a DMARC TXT record to prevent email spoofing
- mediumdns
No DKIM record found
None of the common DKIM selectors returned a valid key. Email authentication may be incomplete.
Configure DKIM signing with your email provider and publish the public key in DNS
- mediumheaders
Missing content-security-policy
CSP header is missing. The site may be vulnerable to XSS attacks.
Add a Content-Security-Policy header to restrict resource loading
- mediumheaders
Missing x-content-type-options
X-Content-Type-Options is missing. MIME-sniffing attacks are possible.
Add X-Content-Type-Options: nosniff header
- mediumheaders
Missing x-frame-options
X-Frame-Options is missing. The site may be vulnerable to clickjacking.
Add X-Frame-Options: DENY or SAMEORIGIN header
- mediummeta
Missing og:image
No Open Graph image set. Social shares will lack a preview image.
Add og:image meta tag (1200x630px recommended)
- mediumstructured data
Missing @type in schema
A structured data object has no @type
Add a @type property (e.g. Organization, WebSite)
- mediumrobots
No sitemap in robots.txt
robots.txt does not reference a sitemap
Add Sitemap: https://yourdomain.com/sitemap.xml to robots.txt
- mediumtechnology
Render-blocking scripts
11 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
Multiple H1 tags
Found 2 H1 tags (recommended: exactly 1)
Use only one H1 per page; use H2-H6 for subsections
- mediumcontent
External links without noopener
3 external links with target="_blank" lack rel="noopener"
Add rel="noopener noreferrer" to all target="_blank" links
- mediummobile
Zoom disabled
Viewport prevents user zoom — accessibility issue
Remove maximum-scale=1 and user-scalable=no to allow pinch-to-zoom
- mediumaccessibility
Missing main landmark
No <main> element or role="main" found
Wrap primary content in a <main> element for screen reader navigation
- mediumaccessibility
No skip navigation link
No skip-to-content link at the top of the page
Add a visually hidden skip link as the first focusable element
- mediumrate limits
No rate limiting detected
10 rapid requests all succeeded without any rate-limit headers or 429 responses. The site may be vulnerable to abuse.
Implement rate limiting (e.g., 429 Too Many Requests) to protect against brute-force attacks
- mediumsocial checker
Missing og:image
No social sharing image set — posts will lack visual appeal
Add og:image meta tag (1200x630px recommended)
- mediumsocial checker
Missing Twitter Card
No twitter:card meta tag — Twitter/X will use default preview
Add twitter:card meta tag (e.g., "summary_large_image")
Low (15)
- lowdns
No IPv6 (AAAA) records
The domain has no AAAA records for IPv6 connectivity
Add AAAA DNS records for IPv6 support
- lowheaders
Missing referrer-policy
Referrer-Policy is not set. Full URLs may leak to third parties.
Add Referrer-Policy: strict-origin-when-cross-origin
- lowheaders
Missing permissions-policy
Permissions-Policy is missing.
Add Permissions-Policy to restrict browser feature access
- lowheaders
Missing Cache-Control header
No Cache-Control header — browser caching is undefined
Add Cache-Control with appropriate max-age for static and dynamic resources
- lowmeta
Missing Twitter Card
No twitter:card meta tag
Add twitter:card meta tag for Twitter sharing
- 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
- lowcontent
Empty anchor links
4 links point to "#" or "javascript:void(0)"
Use proper URLs or button elements instead of empty anchors
- lowaccessibility
Missing navigation landmark
No <nav> element or role="navigation" found
Wrap navigation links in a <nav> element
- lowrate limits
No WAF detected
No Web Application Firewall (Cloudflare, AWS, Akamai, Vercel, Sucuri, Fastly) was detected in response headers.
Consider using a WAF to protect against common web attacks (XSS, SQL injection, DDoS)
- lowrate limits
No bot protection detected
No CAPTCHA, challenge page, or bot detection was triggered during rapid requests.
Consider implementing bot protection (e.g., Cloudflare Turnstile, hCaptcha) for sensitive endpoints
- 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
- lowpage experience
Popup elements detected
Found 1 popup/overlay element(s) — likely consent banners
Ensure popups don't cover main content excessively, especially on mobile
- lowpage experience
No lazy loading on images
57 images without lazy loading
Add loading="lazy" to below-the-fold images for faster initial page load
AI Fix Prompt
Copy this prompt into ChatGPT or Claude to get step-by-step fix instructions
Fix all SEO issues found in the audit of zorgwijzer.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": "zorgwijzer.nl",
"scores": {
"overall": 74,
"performance": 0,
"seo": 86,
"accessibility": 51,
"bestPractices": 89,
"security": 68
},
"findings": [
{
"module": "dns",
"severity": "medium",
"title": "SPF uses neutral policy (?all)",
"description": "The SPF record uses a neutral policy (?all), which provides no protection against spoofing.",
"recommendation": "Change ?all to ~all (softfail) or -all (hardfail)"
},
{
"module": "dns",
"severity": "medium",
"title": "Missing DMARC record",
"description": "No DMARC policy found at _dmarc subdomain.",
"recommendation": "Add a DMARC TXT record to prevent email spoofing"
},
{
"module": "dns",
"severity": "medium",
"title": "No DKIM record found",
"description": "None of the common DKIM selectors returned a valid key. Email authentication may be incomplete.",
"recommendation": "Configure DKIM signing with your email provider and publish the public key in DNS"
},
{
"module": "headers",
"severity": "high",
"title": "Missing strict-transport-security",
"description": "HSTS header is missing. The site may be vulnerable to downgrade attacks.",
"recommendation": "Add Strict-Transport-Security header with max-age of at least 31536000"
},
{
"module": "headers",
"severity": "medium",
"title": "Missing content-security-policy",
"description": "CSP header is missing. The site may be vulnerable to XSS attacks.",
"recommendation": "Add a Content-Security-Policy header to restrict resource loading"
},
{
"module": "headers",
"severity": "medium",
"title": "Missing x-content-type-options",
"description": "X-Content-Type-Options is missing. MIME-sniffing attacks are possible.",
"recommendation": "Add X-Content-Type-Options: nosniff header"
},
{
"module": "headers",
"severity": "medium",
"title": "Missing x-frame-options",
"description": "X-Frame-Options is missing. The site may be vulnerable to clickjacking.",
"recommendation": "Add X-Frame-Options: DENY or SAMEORIGIN header"
},
{
"module": "meta",
"severity": "medium",
"title": "Missing og:image",
"description": "No Open Graph image set. Social shares will lack a preview image.",
"recommendation": "Add og:image meta tag (1200x630px recommended)"
},
{
"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": "No sitemap in robots.txt",
"description": "robots.txt does not reference a sitemap",
"recommendation": "Add Sitemap: https://yourdomain.com/sitemap.xml to robots.txt"
},
{
"module": "technology",
"severity": "medium",
"title": "Render-blocking scripts",
"description": "11 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": "Multiple H1 tags",
"description": "Found 2 H1 tags (recommended: exactly 1)",
"recommendation": "Use only one H1 per page; use H2-H6 for subsections"
},
{
"module": "content",
"severity": "high",
"title": "Images missing alt text",
"description": "26 image(s) have no alt attribute",
"recommendation": "Add descriptive alt text to all images for accessibility and SEO"
},
{
"module": "content",
"severity": "medium",
"title": "External links without noopener",
"description": "3 external links with target=\"_blank\" lack rel=\"noopener\"",
"recommendation": "Add rel=\"noopener noreferrer\" to all target=\"_blank\" links"
},
{
"module": "mobile",
"severity": "medium",
"title": "Zoom disabled",
"description": "Viewport prevents user zoom — accessibility issue",
"recommendation": "Remove maximum-scale=1 and user-scalable=no to allow pinch-to-zoom"
},
{
"module": "accessibility",
"severity": "high",
"title": "26 images missing alt attribute",
"description": "Images without alt text are inaccessible to screen readers",
"recommendation": "Add descriptive alt text to all informational images, or alt=\"\" for decorative ones"
},
{
"module": "accessibility",
"severity": "high",
"title": "3 form fields without labels",
"description": "Form inputs without associated labels are inaccessible",
"recommendation": "Use <label for=\"id\"> or aria-label on every form field"
},
{
"module": "accessibility",
"severity": "medium",
"title": "Missing main landmark",
"description": "No <main> element or role=\"main\" found",
"recommendation": "Wrap primary content in a <main> element for screen reader navigation"
},
{
"module": "accessibility",
"severity": "medium",
"title": "No skip navigation link",
"description": "No skip-to-content link at the top of the page",
"recommendation": "Add a visually hidden skip link as the first focusable element"
},
{
"module": "rate-limits",
"severity": "medium",
"title": "No rate limiting detected",
"description": "10 rapid requests all succeeded without any rate-limit headers or 429 responses. The site may be vulnerable to abuse.",
"recommendation": "Implement rate limiting (e.g., 429 Too Many Requests) to protect against brute-force attacks"
},
{
"module": "social-checker",
"severity": "medium",
"title": "Missing og:image",
"description": "No social sharing image set — posts will lack visual appeal",
"recommendation": "Add og:image meta tag (1200x630px recommended)"
},
{
"module": "social-checker",
"severity": "medium",
"title": "Missing Twitter Card",
"description": "No twitter:card meta tag — Twitter/X will use default preview",
"recommendation": "Add twitter:card meta tag (e.g., \"summary_large_image\")"
}
]
}
```Recommendations for your industry
- 1Ensure WCAG 2.1 AA compliance
- 2Implement all recommended security headers
- 3Ensure sitemap covers all important pages
- 4Optimize page load time to under 2 seconds
- 5Ensure responsive design on all pages
SEO Checklist for General
Tips for Mixed websites
- →Define clear landing pages for each segment
- →Use different meta strategies per page group
- →Segment sitemap by content type
Local SEO Context
The Netherlands is one of Europe's most digitally mature markets with high mobile share.