rijnijssel.nl Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of rijnijssel.nl on 2026-06-28. The website returned an HTTP 200 status code with a server response time of 25990ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 170 KB.
Warning: The website does not have a valid SSL certificate. Visitors may see security warnings in their browser, and data transmitted to and from this website is not encrypted.
The security headers analysis reveals a score of 65/100 (moderate). The following security headers are properly configured: Strict-Transport-Security (HSTS), X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. However, the site is missing Content-Security-Policy and X-Frame-Options, which could expose the site and its users to cross-site scripting (XSS), clickjacking, and other web-based attacks.
Our technology detection scan identified 3 technologies across 3 categories powering rijnijssel.nl. The detected stack includes Next.js css, React, and Webpack. The site uses Next.js as its primary framework (version css). The UI is built with React.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, rijnijssel.nl receives an overall trust score of 77/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time25990ms
ProtocolHTTP/2
Page Size170 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerNetlify
Total Requests187
3rd Party Domains8
Redirect1 hop(s)
Detected Technologies (3)
🔧 Next.js
⚛️ React
🔨 Webpack
Security Headers
✗
Content-Security-Policy
Not set
✓
Strict-Transport-Security (HSTS)
Set ✓
✗
X-Frame-Options
Not set
✓
X-Content-Type-Options
Set ✓
✓
Permissions-Policy
Set ✓
SSL Certificate
IssuerHellenic Academic and Research Institutions CA
Issuer FullcountryName=GR, organizationName=Hellenic Academic and Research Institutions CA, commonName=GEANT TLS RSA 1
SubjectcountryName=NL, localityName=Arnhem, organizationName=Stichting Regionaal Opleidingen Centrum Arnhem, commonName=rijnijssel.nl
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_128_GCM_SHA256
Algorithm—
Issued—
Expires— (? days)
SANs—
rijnijssel.nl Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, rijnijssel.nl receives a trust score of 77/100, which places it in the "Likely Safe" category. This score is calculated by evaluating multiple factors including SSL certificate validity, domain registration history, email authentication protocols, security header configuration, and blacklist status across major threat intelligence databases.
The analysis identified several positive trust signals: a valid HTTPS connection protecting data in transit, HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a quarantine policy, DKIM (DomainKeys Identified Mail) providing cryptographic email verification, and DNSSEC providing authenticated DNS responses.
Areas of concern include: the absence of a Content-Security-Policy header, which leaves the site more vulnerable to cross-site scripting (XSS) attacks, no X-Frame-Options header, which could allow the site to be embedded in malicious iframes (clickjacking), and the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved.
We checked rijnijssel.nl against 8 major blacklist databases including Google Safe Browsing, Phishtank, Urlhaus, Openphish, Dnsfilter, Spamhaus Dbl, Surbl, and Virustotal. The domain passed all 8 checks with a clean status, meaning it has not been flagged for phishing, malware distribution, spam, or other malicious activities by any of the tested threat intelligence providers.
Trust Signals
✅ Valid HTTPS
✅ HSTS enabled
✅ SPF configured
✅ DMARC configured (p=quarantine)
✅ DKIM configured
✅ DNSSEC enabled
✅ Sitemap.xml found
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
rijnijssel.nl Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned rijnijssel.nl and identified 3 distinct technologies across 3 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
Framework: Next.js (version css) — provides the application framework and routing for rijnijssel.nl.
UI Library: React — handles the user interface rendering and component management for rijnijssel.nl.
Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for rijnijssel.nl.
Framework
UI Library
Build Tool
rijnijssel.nl Performance, Speed & Core Web Vitals
🤖 AI Summary
rijnijssel.nl delivers its homepage in 25990ms (server response time), which is considered slow by industry standards. The total page weight is 170 KB, and we detected 187 resource requests loading assets from 8 third-party domains. A high number of third-party domains can significantly impact page load time due to additional DNS lookups and TLS handshakes required for each domain.
The website uses Gzip compression for text-based assets, achieving an estimated 60.0% reduction in transfer size. This reduces bandwidth usage and improves page load times, especially for visitors on slower connections.
Asset minification status: 0 out of 2 CSS files and 0 out of 22 JavaScript files are minified. Minifying the remaining 24 unminified file(s) could further reduce page weight by 10-30% for those assets. Minification is a best practice that reduces download sizes without affecting functionality.
From an environmental perspective, each page view of rijnijssel.nl produces approximately 0.08g of CO₂, earning a carbon rating of A. This places the website among the cleanest on the web, demonstrating efficient use of server resources and optimized content delivery. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 170 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for rijnijssel.nl. This typically means the site doesn't have enough real-world Chrome user traffic to generate statistically significant field data, or the domain is not included in the CrUX dataset. Core Web Vitals (LCP, INP, CLS) are important Google ranking factors that measure real user experience.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.08g
RatingA
Page Weight & Optimization
HTML Size170 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests187
3rd Party Domains8
CSS Minified0/2
JS Minified0/22
rijnijssel.nl DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
rijnijssel.nl resolves to the IPv4 address 75.2.60.5, but does not support IPv6. IPv6 adoption is increasingly important as IPv4 address space becomes exhausted, and some ISPs and regions are transitioning to IPv6-only connectivity. The domain has 1 A record(s) configured.
The domain name system is managed by 4 name servers: ns1.surfnet.nl, ns1.zurich.surf.net, ns2.surfnet.nl, and ns3.surfnet.nl. Having 4 name servers provides good redundancy — if one fails, the others can continue serving DNS queries. The choice of name servers often indicates the DNS hosting provider or CDN service being used.
Email for rijnijssel.nl is handled by Microsoft 365 with 1 MX records configured: rijnijssel-nl.h-v1.mx.microsoft. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server.
SPF (Sender Policy Framework) is configured, which specifies which mail servers are authorized to send email on behalf of this domain. This helps prevent email spoofing and improves email deliverability. DMARC (Domain-based Message Authentication, Reporting and Conformance) is configured with a quarantine policy — a moderate setting, directing unauthorized emails to spam/junk folders. DKIM (DomainKeys Identified Mail) is configured, adding a cryptographic signature to outgoing emails that receiving servers can verify to confirm the email hasn't been tampered with in transit.
DNSSEC is enabled for rijnijssel.nl, providing an additional layer of security by cryptographically signing DNS records. This prevents DNS cache poisoning and man-in-the-middle attacks that could redirect visitors to malicious websites.
Our subdomain enumeration scan discovered 2 active subdomains for rijnijssel.nl: apps.rijnijssel.nl and www.rijnijssel.nl. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
ns1.surfnet.nl
ns1.zurich.surf.net
ns2.surfnet.nl
ns3.surfnet.nl
MX
rijnijssel-nl.h-v1.mx.microsoft
Email & Authentication
MX ProviderMicrosoft 365
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (2 found)
apps.rijnijssel.nl www.rijnijssel.nl
rijnijssel.nl Page Content, Images & Accessibility
🤖 AI Summary
The homepage of rijnijssel.nl contains 577 words of visible text content. This is a moderate amount of content. The page is structured with 9 H2 headings, 15 H3 headings, 0 H4 headings.
The page includes 20 images. 15 images (75%) are missing alt text attributes, which is a significant concern for both accessibility and SEO. Screen readers rely on alt text to describe images to visually impaired users, and search engines use alt text to understand image content. Only 25% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 125 internal links pointing to other pages on the same domain and 11 external links pointing to third-party websites. The high number of internal links suggests a well-interconnected site structure, which helps search engines discover and crawl all pages efficiently. There are 22 external JavaScript files, 2 CSS stylesheets, and 0 iframes on the page.
The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages) and Progressive Web App (PWA) manifest (enabling app-like installation).
Notable missing features: robots.txt and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
The website has social media presence across 3 platforms: Facebook (@rijnijssel), Twitter (@rijnijssel), and Instagram (@rijnijssel). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1Jouw weg vooruit!
H2 Tags9
H3 Tags15
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links125
External Links11
Assets & Features
JavaScript Files22
JS Minified0/22
CSS Files2
CSS Minified0/2
Iframes0
Images20
Missing Alt15
SitemapYes ✓
Robots.txtNo
PWAYes ✓
AMPNo
RSS FeedNo
Social Media Presence
Facebook: @rijnijsselTwitter: @rijnijsselInstagram: @rijnijssel
rijnijssel.nl SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for rijnijssel.nl is well-optimized at 59 characters: "150+ mbo-opleidingen in Arnhem en Wageningen! | Rijn IJssel". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 115 characters (well-optimized): "Mbo-opleiding volgen? Rijn IJssel heeft opleidingen in de economie, zorg, horeca en meer ✅ Ontdek onze opleidingen!". Google typically displays up to 155-160 characters of the meta description in search results. A compelling meta description with a clear call-to-action can significantly improve click-through rates from search results.
The canonical url is correctly set to https://www.rijnijssel.nl, preventing duplicate content issues, the page language is declared as nl, the meta robots directive is set to index, follow, and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("150+ mbo-opleidingen in Arnhem en Wageningen! | Rijn IJssel..."), OG description, OG image (social sharing thumbnail), OG type (website). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol.
A Twitter Card of type summary_large_image is configured, which controls how links appear when shared on Twitter/X. The "summary_large_image" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
The meta keywords tag contains 15 terms including rijnijssel, opleiding, MBO, BOL, and BBL. Note: Google has officially confirmed that it does not use the meta keywords tag as a ranking signal. However, some other search engines (Bing, Yandex) may still reference it.
Google SERP Preview
150+ mbo-opleidingen in Arnhem en Wageningen! | Rijn IJssel
https://rijnijssel.nl
Mbo-opleiding volgen? Rijn IJssel heeft opleidingen in de economie, zorg, horeca en meer ✅ Ontdek onze opleidingen!
Meta Tags
Title150+ mbo-opleidingen in Arnhem en Wageningen! | Rijn IJssel...
Title Length59 chars
Meta Desc Length115 chars
H1Jouw weg vooruit!
Languagenl
Canonicalhttps://www.rijnijssel.nl
Meta Robotsindex, follow
Meta Keywordsrijnijssel, opleiding, MBO, BOL, BBL, mbo opleidingen, nivea...
Schema.org & Social
Schema Types—
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
rijnijssel.nl
150+ mbo-opleidingen in Arnhem en Wageningen! | Rijn IJssel
Mbo-opleiding volgen? Rijn IJssel heeft opleidingen in de economie, zorg, horeca en meer ✅ Ontdek onze opleidingen!
rijnijssel.nl Data Breaches, History, Green Hosting & Mobile Apps
🤖 AI Summary
This section shows additional intelligence about rijnijssel.nl including data breach history (via HaveIBeenPwned), web archive history (Wayback Machine), green/eco-friendly hosting status, and mobile app presence in the iOS App Store.
✅No Data Breaches Found
This domain has not appeared in any known data breaches.