cdu.no

🤖 AI Summary

After conducting a thorough safety and legitimacy analysis, cdu.no receives a trust score of 67/100, 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 reject policy — the strongest available setting, 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), missing Referrer-Policy, potentially leaking URL information to third parties, 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 cdu.no 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.

🤖 AI Summary

Our technology detection engine scanned cdu.no and identified 5 distinct technologies across 5 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 media) — provides the application framework and routing for cdu.no. UI Library: React — handles the user interface rendering and component management for cdu.no. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for cdu.no. Hosting: Vercel — provides the server infrastructure for cdu.no. Fonts: Adobe Fonts — delivers web fonts for typography for cdu.no. We also extracted the following tracking identifiers: Google Tag Manager container GTM-WRLTDL. These IDs can be used to identify other websites operated by the same organization.

🤖 AI Summary

cdu.no delivers its homepage in 13540ms (server response time), which is considered slow by industry standards. The total page weight is 322 KB, and we detected 187 resource requests loading assets from 19 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 5 CSS files and 0 out of 38 JavaScript files are minified. Minifying the remaining 43 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 cdu.no produces approximately 0.16g of CO₂, earning a carbon rating of B. 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 322 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for cdu.no. 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.

🤖 AI Summary

cdu.no resolves to the IPv4 address 104.18.2.175 and also supports IPv6 (2606:4700::6812:2af), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured. The domain name system is managed by 2 name servers: lucy.ns.cloudflare.com and ned.ns.cloudflare.com. Having 2 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. 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 reject policy — the strongest setting, instructing receiving servers to reject unauthorized emails entirely. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is enabled for cdu.no, 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 1 active subdomains for cdu.no: www.cdu.no. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

🤖 AI Summary

The homepage of cdu.no contains 467 words of visible text content. This is a moderate amount of content. The page is structured with 4 H2 headings, 19 H3 headings, 4 H4 headings. The page includes 20 images. 14 images (70%) 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 30% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 97 internal links pointing to other pages on the same domain and 20 external links pointing to third-party websites. There are 38 external JavaScript files, 5 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: Schema.org structured data (DefinedRegion, MerchantReturnPolicy, MonetaryAmount, Offer, OfferShippingDetails, Organization, QuantitativeValue, SearchAction, ShippingConditions, ShippingDeliveryTime, and WebSite). Notable missing features: XML Sitemap and robots.txt. Adding these could improve search engine discoverability and rich result eligibility.

🤖 AI Summary

The title tag for cdu.no is good at 25 characters: "Utdanning | Cappelen Damm". The length is acceptable, though it may be slightly truncated in some search result displays. No meta description is configured for cdu.no. This is a critical SEO oversight — without a meta description, Google will auto-generate a snippet from page content, which may not accurately represent the page or entice users to click. Adding a unique, compelling meta description of 120-155 characters is strongly recommended. The page language is declared as nb-no and the meta robots directive is set to index. Open Graph meta tags are configured with 3/4 recommended fields: OG title ("Utdanning | Cappelen Damm..."), 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 site implements Schema.org structured data with the following types: DefinedRegion, MerchantReturnPolicy, MonetaryAmount, Offer, OfferShippingDetails, Organization, QuantitativeValue, SearchAction, ShippingConditions, ShippingDeliveryTime, and WebSite. Structured data helps search engines understand the page content and can enable rich results (featured snippets, knowledge panels, star ratings) in Google search results, which can significantly increase click-through rates.

🤖 AI Summary

Related domain discovery works by finding other websites that share the same IP address, Google Tag Manager container ID, Google Analytics property, or advertising pixel IDs with cdu.no. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. We extracted the following tracking IDs that can be used for cross-referencing: gtm_id: GTM-WRLTDL.