Get a snapshot of carls.nu's online performance, security posture, and technology profile.
carls.nu Website Overview & Technology Report
A glance at carls.nu reveals a Danish e-commerce platform, specializing in sandpaper products. With a trust score of 63, it's likely a safe and reliable website, which aligns with our verdict. The website's 200 status code and 63ms response time indicate a well-optimized and efficient platform.
Evaluate trustworthiness based on age, SSL, email authentication, security headers, and blacklist status across 8 threat databases.
carls.nu Trust Score & Safety Analysis
As a domain with a trust score of 63, carls.nu demonstrates a strong foundation of trust. The presence of an SSL certificate issued by Google Trust Services and a TLS 1.3 protocol further reinforces this notion. Additionally, the website's SPF and DMARC records are in place, providing an extra layer of security against malicious activities.
Security Headers
Blacklist Checks 8/8 Clean ✓
Discover every technology powering this website — from CMS and frameworks to analytics, payments, and marketing tools.
carls.nu Technology Stack & Detected Technologies
A closer examination of carls.nu's technology stack reveals an impressive array of 9 technologies, including Bootstrap, Google Tag Manager, and Font Awesome. The use of Google Fonts and Vimeo suggests a focus on aesthetics and multimedia content. The presence of jQuery and YouTube Embed indicates a strong emphasis on interactivity and multimedia functionality.
Tracking IDs Detected
Response time, compression, CDN usage, Core Web Vitals, and environmental impact metrics for carls.nu.
carls.nu Performance & Web Vitals Report
carls.nu delivers its homepage in 62943ms (server response time), which is considered slow by industry standards. The total page weight is 204 KB, and we detected 236 resource requests loading assets from 6 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: 1 out of 3 CSS files and 3 out of 7 JavaScript files are minified. Minifying the remaining 6 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. The site is served through a Content Delivery Network (CDN), which caches static assets at edge servers around the world. This means visitors from different geographic regions receive content from the nearest edge server, significantly reducing latency. CDN usage is particularly important for websites with a global audience, as it can reduce page load times by 40-60% for distant visitors. From an environmental perspective, each page view of carls.nu produces approximately 0.1g 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 204 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for carls.nu. 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.
Complete DNS record analysis including email authentication (SPF, DMARC, DKIM), registrar details, and subdomain discovery.
carls.nu DNS Records, Email Authentication & Domain Registration
A look at carls.nu's infrastructure reveals an IP address of 104.26.8.141, which is registered to Microsoft 365. This suggests a strong reliance on Microsoft's cloud services. With a page size of 204KB, the website appears to be optimized for mobile devices, which is essential in today's fast-paced digital landscape.
Subdomains 4 found
TXT Records / Service Verifications 4
Content structure, media assets, cookie usage, payment methods, and social media presence for carls.nu.
carls.nu Page Content Analysis
The homepage of carls.nu contains 2,301 words of visible text content. This is a substantial amount of content that provides good opportunities for search engine indexing. The page is structured with 1 H2 headings, 2 H3 headings, 7 H4 headings, 4 H5, and 0 H6 headings. The page includes 71 images. 10 images (14%) 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 86% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 126 internal links pointing to other pages on the same domain and 1 external link 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 7 external JavaScript files, 3 CSS stylesheets, and 1 iframes on the page. The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages) and robots.txt (controls search engine crawling behavior). Notable missing features: Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 2 platforms: Facebook (@tr) and Github (@OwlCarousel2). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Social Media Presence 2 platforms
Evaluate on-page SEO factors including meta tags, Schema.org markup, content metrics, social presence, and environmental impact.
carls.nu SEO Analysis, Meta Tags & Content
With a word count of 2301 and 71 images, carls.nu's content is rich and visually appealing. The title "Køb Sandpapir online| Nordens største udvalg af sandpapir - HER!" is descriptive and attention-grabbing. However, with an SEO score of 0, there is room for improvement in terms of search engine optimization. Nonetheless, the website's strong content and technical foundation provide a solid foundation for further optimization efforts.
Google SERP Preview
META TAGS & SCHEMA.ORG
META TAGS
SCHEMA.ORG & SOCIAL
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