Foglift
delftvrij.nl — Website Report
Scored 46/100 · Scanned with Foglift
F
Fixing "Missing HSTS header" would move delftvrij.nl from 46 to 66.
6 critical10 warnings19 total issues
Quick wins
~121 min total fix time1Missing HSTS header~2m
2Missing X-Content-Type-Options header~2m
3Missing X-Frame-Options header~2m
https://delftvrij.nl/ · 4/16/2026, 9:47:19 AM
Scanned with Foglift · SEO + AI Visibility analysis
AI Search Readiness Risk
Your AI Readiness score of 43/100 means AI assistants like ChatGPT and Perplexity may not recommend your site. Monitor your AI visibility →
AI Action Plan
Website Analysis for https://delftvrij.nl Your site scores 46/100, but AI search engines can barely find you. AI Visibility: 36/100. When customers ask ChatGPT or Perplexity about your industry, you're likely not in the answer. We found 6 critical issues and 10 warnings. Here's your prioritized action plan:
FIX FIRST (Critical): 1. Missing HSTS header — Enable HTTP Strict Transport Security to force HTTPS connections.
2. Missing Content Security Policy header — Add a Content-Security-Policy header to prevent XSS and injection attacks. 3. Missing page title — Your page has no <title> tag. This is critical for SEO — it's what appears in search results. 4. Missing meta description — No meta description found. Search engines use this as the snippet in results. Add one for better CTR. 5. Slow server response — Server responded in 4.7s. Aim for under 200ms Time to First Byte (TTFB). Check your server configuration,
15 more critical fixes + quick wins in your full report
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AI Visibility
How likely AI assistants like ChatGPT, Perplexity, and Gemini are to cite your brand
36F
50
Brand Mentions
Found 5+ web mentions of "delftvrij"
8
Domain Authority
PageRank: 0.0/10, 2+ external references
23
Content Freshness
16 pages in sitemap but none updated recently
62
Technical Readiness
Moderate technical readiness — some improvements possible
Technical Issues
No FAQ section foundwarning~15 min fix
AI assistants love Q&A content — it's the easiest format for them to extract and quote. Add a Frequently Asked Questions section to your page, and you'll significantly increase your chances of being cited in AI-generated answers.
Quick Fix
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [{
"@type": "Question",
"name": "What does your company do?",
"acceptedAnswer": {
"@type": "Answer",
"text": "We provide [your service]. Our solution helps..."
}
}]
}
</script>AI models frequently cite FAQ content. Add FAQPage schema to boost your chances of appearing in AI-generated answers.
Pro tip: The biggest drivers of AI visibility are brand mentions and domain authority — not just technical setup. Set up AI visibility monitoring →
How does AI see Delftvrij?
When users ask AI about your industry, are you recommended?
G
C
P
Ge
A
See how ChatGPT, Claude, Perplexity, and Gemini talk about Delftvrij
SEO & Technical Issues (18)
Missing HSTS headercriticalSecurity~2 min fix
Enable HTTP Strict Transport Security to force HTTPS connections.
Quick Fix
# Nginx:
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
# Apache (.htaccess):
Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains"
# Next.js (next.config.js headers):
{ key: 'Strict-Transport-Security', value: 'max-age=31536000; includeSubDomains' }HSTS forces browsers to use HTTPS, preventing downgrade attacks and cookie hijacking.
Missing Content Security Policy headercriticalSecurity~5 min fix
Add a Content-Security-Policy header to prevent XSS and injection attacks.
Quick Fix
# Nginx:
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline';" always;
# Apache (.htaccess):
Header set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline';"
# Next.js (next.config.js headers):
{ key: 'Content-Security-Policy', value: "default-src 'self'; script-src 'self' 'unsafe-inline'" }Content-Security-Policy prevents XSS attacks by controlling which resources the browser can load.
Missing page titlecriticalSEO~3 min fix
Your page has no <title> tag. This is critical for SEO — it's what appears in search results.
Quick Fix
<head>
<title>Your Page Title — Brand Name</title>
</head>The title tag is the most important on-page SEO element. Keep it under 60 characters and include your primary keyword.
Missing meta descriptioncriticalSEO~5 min fix
No meta description found. Search engines use this as the snippet in results. Add one for better CTR.
Quick Fix
<meta name="description" content="Clear, compelling description of your page in 120-160 characters. Include your main keyword naturally.">Meta descriptions appear in search results. A good one improves click-through rate by 5-10%.
Slow server responsecriticalPerformance
Server responded in 4.7s. Aim for under 200ms Time to First Byte (TTFB). Check your server configuration, database queries, and hosting performance.
8 render-blocking scriptscriticalPerformance
8 scripts without async or defer attributes. These block page rendering. Add defer or async to non-critical scripts.
Missing X-Content-Type-Options headerwarningSecurity~2 min fix
Set X-Content-Type-Options: nosniff to prevent MIME-type sniffing.
Quick Fix
# Nginx:
add_header X-Content-Type-Options "nosniff" always;
# Next.js (next.config.js headers):
{ key: 'X-Content-Type-Options', value: 'nosniff' }Prevents browsers from MIME-type sniffing, which can lead to security vulnerabilities.
Missing X-Frame-Options headerwarningSecurity~2 min fix
Set X-Frame-Options to prevent clickjacking attacks.
Quick Fix
# Nginx:
add_header X-Frame-Options "SAMEORIGIN" always;
# Next.js (next.config.js headers):
{ key: 'X-Frame-Options', value: 'SAMEORIGIN' }X-Frame-Options prevents clickjacking by controlling who can embed your page in an iframe.
Missing Referrer Policy headerwarningSecurity~2 min fix
Add a Referrer-Policy header to control information leakage.
Quick Fix
# Nginx:
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
# Next.js (next.config.js headers):
{ key: 'Referrer-Policy', value: 'strict-origin-when-cross-origin' }Controls how much referrer information is sent with requests, protecting user privacy.
Missing Permissions Policy headerwarningSecurity~2 min fix
Add a Permissions-Policy header to control browser feature access.
Quick Fix
# Nginx:
add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;
# Next.js (next.config.js headers):
{ key: 'Permissions-Policy', value: 'camera=(), microphone=(), geolocation=()' }Permissions-Policy restricts which browser features your site can use, reducing attack surface.
Missing Open Graph tagswarningSEO~10 min fix
Missing og:title, og:description, og:image. Add these for better social media sharing previews on Facebook, LinkedIn, and Twitter.
Quick Fix
<meta property="og:title" content="Your Page Title">
<meta property="og:description" content="Description for social sharing">
<meta property="og:image" content="https://yoursite.com/og-image.jpg">
<meta property="og:url" content="https://yoursite.com/page">
<meta property="og:type" content="website">Open Graph tags control how your page looks when shared on Facebook, LinkedIn, and other social platforms.
Skipped heading levelwarningAccessibility
Heading hierarchy jumps from H2 to H4. Don't skip heading levels — this confuses screen readers and assistive technology.
Potential low contrast textwarningAccessibility
Some text appears to use light colors that may not have sufficient contrast against the background. WCAG requires a minimum 4.5:1 contrast ratio.
9 external stylesheetswarningPerformance
Loading 9 CSS files. Each blocks rendering. Consider combining stylesheets or inlining critical CSS.
4 images without lazy loadingwarningPerformance
4 images don't use loading="lazy". Add lazy loading to below-the-fold images to improve initial page load.
Missing Twitter Card tagsinfoSEO~5 min fix
Add twitter:card meta tags for optimized appearance when your pages are shared on Twitter/X.
Quick Fix
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Your Page Title">
<meta name="twitter:description" content="A compelling description">
<meta name="twitter:image" content="https://yoursite.com/twitter-image.jpg">Twitter Card tags control how your page appears when shared on Twitter/X.
No main landmarkinfoAccessibility~3 min fix
Add a <main> element to identify the primary content area. Screen reader users use this to skip navigation.
Quick Fix
<!-- Wrap your primary content in a <main> element -->
<main id="main-content">
<h1>Page Title</h1>
<p>Your primary content here...</p>
</main>The <main> element identifies the primary content area, letting screen reader users skip to it directly.
No resource hintsinfoPerformance~5 min fix
Add <link rel='preconnect'> for critical third-party domains to reduce connection setup time.
Quick Fix
<!-- Add to <head> for your critical third-party domains -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="dns-prefetch" href="https://cdn.example.com">Preconnect and DNS-prefetch reduce connection time to third-party domains by starting the handshake early.
Your Potential Score
46
Now
74
Potential
+28 points possible by fixing 19 issues
That moves you from F to C — above average
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Industry Benchmark
SEO
Avg: 62+0On par
AI Readiness
Avg: 35+8On par
Performance
Avg: 55-10Behind
Security
Avg: 40-40At risk
Accessibility
Avg: 68+17Ahead
Based on 120+ websites scanned across industries. See full benchmark report →
What This Score Means for You
SEO issues — Your site may be losing 20-40% of potential Google traffic due to missing meta tags, broken structure, or indexing problems.
Security gaps — Missing security headers may flag your site as unsafe in browsers, hurting trust and conversions.
Slow loading — Sites loading in 3+ seconds lose 53% of mobile visitors (Google data).
Most of these issues have simple, copy-paste fixes. Check the code snippets above for quick solutions.
Security score: 0/100
Most security issues are 5-minute fixes — adding HTTP headers to your server config. Check the code fixes above for the exact headers to add — we include copy-paste code for Nginx, Apache, Vercel, and Netlify.
Score of 0 means your site has no security headers at all. Browsers may show security warnings to visitors.