posterindeklas.nl

We performed a comprehensive analysis of posterindeklas.nl on 2026-07-04. The website returned an HTTP 200 status code with a server response time of 6002ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 267 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by GoGetSSL (DV type). The connection is encrypted using TLS 1.3 with the TLS_AES_256_GCM_SHA384 cipher suite and ECDSA-SHA256 signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2026-11-02, which is 121 days from now. The security headers analysis reveals a score of 0/100 (poor). No security headers are configured, which is a significant security concern. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy, which could expose the site and its users to cross-site scripting (XSS), clickjacking, and other web-based attacks. Our technology detection scan identified 12 technologies across 11 categories powering posterindeklas.nl. The detected stack includes WordPress 6.9.4, WooCommerce, React, Bootstrap, Webpack, Vite, Google Analytics 4, Google Tag Manager, Meta Pixel, reCAPTCHA v3, jQuery, and Font Awesome. The primary e-commerce platform is WooCommerce. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, posterindeklas.nl receives an overall trust score of 66/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, posterindeklas.nl receives a trust score of 66/100, 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, a valid SSL certificate issued by GoGetSSL with 121 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DMARC email authentication with a none policy. 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, the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity, and DNSSEC is not enabled, leaving DNS queries vulnerable to spoofing attacks. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved. We checked posterindeklas.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.

Our technology detection engine scanned posterindeklas.nl and identified 12 distinct technologies across 11 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. CMS: WordPress (version 6.9.4) — manages the content and page structure for posterindeklas.nl. Ecommerce: WooCommerce — powers the online store and shopping functionality for posterindeklas.nl. UI Library: React — handles the user interface rendering and component management for posterindeklas.nl. CSS Framework: Bootstrap — provides the styling and responsive layout system for posterindeklas.nl. Build Tool: Webpack and Vite — bundles and optimizes the JavaScript and CSS assets for posterindeklas.nl. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for posterindeklas.nl. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for posterindeklas.nl. Advertising: Meta Pixel — handles advertising pixel tracking and conversion measurement for posterindeklas.nl. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for posterindeklas.nl. JavaScript Library: jQuery — provides utility functions and DOM manipulation for posterindeklas.nl. Icon Set: Font Awesome — provides additional functionality for posterindeklas.nl. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-1V9X47NDNX, Google Tag Manager container GTM-PPL8B4J, and Meta (Facebook) Pixel ID 220496339378003. These IDs can be used to identify other websites operated by the same organization.

posterindeklas.nl delivers its homepage in 6002ms (server response time), which is considered slow by industry standards. The total page weight is 267 KB, and we detected 276 resource requests loading assets from 16 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: 35 out of 60 CSS files and 56 out of 73 JavaScript files are minified. Minifying the remaining 42 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 posterindeklas.nl produces approximately 0.13g 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 267 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for posterindeklas.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.

posterindeklas.nl resolves to the IPv4 address 195.149.119.81 and also supports IPv6 (2a0b:8bc7:1:b6a::10), demonstrating modern network infrastructure readiness. The domain has 1 A record(s) configured. The domain name system is managed by 4 name servers: ns1.netaffairs.nl, ns2.netaffairs.com, ns3.netaffairs.com, and ns4.netaffairs.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 posterindeklas.nl is handled by Microsoft 365 with 1 MX records configured: posterindeklas-nl.mail.protection.outlook.com. 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 none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is not enabled for posterindeklas.nl. While not critical for most websites, DNSSEC adds an important security layer by ensuring DNS responses haven't been tampered with during transit. Enabling DNSSEC is recommended for domains handling sensitive data or financial transactions.

The homepage of posterindeklas.nl contains 1,060 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 5 H2 headings, 3 H3 headings, 20 H4 headings, 0 H5, and 8 H6 headings. The page includes 17 images. 3 images (18%) 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 82% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 90 internal links pointing to other pages on the same domain and 9 external links pointing to third-party websites. There are 73 external JavaScript files, 60 CSS stylesheets, and 2 iframes on the page. The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages), robots.txt (controls search engine crawling behavior), Schema.org structured data (BreadcrumbList, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, WebPage, and WebSite), and RSS feed for content syndication. We detected the following payment methods accepted on posterindeklas.nl: Visa, Mastercard, and Klarna. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates. The website has social media presence across 3 platforms: Facebook (@Posterindeklas), Instagram (@posterindeklas), and Pinterest (@posterindeklas). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for posterindeklas.nl is good at 65 characters: "Educatieve posters voor in de klas of thuis van Poster in de klas". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 133 characters (well-optimized): "Educatieve lesposters voor in de klas of thuis, zoals posters voor metriek stelsel, rekenen, lezen, taal, spelling, huis...". 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://posterindeklas.nl/, preventing duplicate content issues, the page language is declared as nl-nl, the meta robots directive is set to index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1, and a favicon is configured. Open Graph meta tags are configured with 3/4 recommended fields: OG title ("Educatieve posters voor in de klas of thuis van Poster in de..."), OG description, 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: BreadcrumbList, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, WebPage, 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.