helendoron.cz

We performed a comprehensive analysis of helendoron.cz on 2026-06-30. The website returned an HTTP 200 status code with a server response time of 23208ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 790 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by Let's Encrypt (DV type). The connection is encrypted using TLS 1.3 with the TLS_AES_256_GCM_SHA384 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2026-09-18, which is 80 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 10 technologies across 10 categories powering helendoron.cz. The detected stack includes WordPress 7.0, WooCommerce, Webpack, Microsoft Clarity, Google Tag Manager, reCAPTCHA v3, YouTube Embed, jQuery, Font Awesome, and WP Rocket. The primary e-commerce platform is WooCommerce. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, helendoron.cz receives an overall trust score of 68/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, helendoron.cz receives a trust score of 68/100, 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 Let's Encrypt with 80 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a none policy, 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 helendoron.cz 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 helendoron.cz and identified 10 distinct technologies across 10 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 7.0) — manages the content and page structure for helendoron.cz. Ecommerce: WooCommerce — powers the online store and shopping functionality for helendoron.cz. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for helendoron.cz. Analytics: Microsoft Clarity — tracks visitor behavior and provides traffic insights for helendoron.cz. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for helendoron.cz. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for helendoron.cz. Video: YouTube Embed — provides video hosting and playback for helendoron.cz. JavaScript Library: jQuery — provides utility functions and DOM manipulation for helendoron.cz. Icon Set: Font Awesome — provides additional functionality for helendoron.cz. Performance: WP Rocket — optimizes page loading speed and performance for helendoron.cz. We also extracted the following tracking identifiers: Google Tag Manager container GTM-5W5VZR. These IDs can be used to identify other websites operated by the same organization.

helendoron.cz delivers its homepage in 23208ms (server response time), which is considered slow by industry standards. The total page weight is 790 KB, and we detected 442 resource requests loading assets from 11 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 0 CSS files and 54 out of 72 JavaScript files are minified. Minifying the remaining 18 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 helendoron.cz produces approximately 0.39g of CO₂, earning a carbon rating of C. This is an average carbon footprint. Optimizing images and reducing unnecessary scripts could further improve this score. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 790 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for helendoron.cz. 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.

helendoron.cz resolves to the IPv4 address 87.236.195.134, 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 3 name servers: ns1.next.exon.io, ns2.next.exon.io, and ns3.next.exon.io. Having 3 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 helendoron.cz is handled by exon.io with 1 MX records configured: mx.next01.exon.io. 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 enabled for helendoron.cz, 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.

The homepage of helendoron.cz contains 1,966 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 15 H2 headings, 32 H3 headings, 1 H4 headings. The page includes 82 images. 67 images (82%) 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 18% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 211 internal links pointing to other pages on the same domain and 21 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 72 external JavaScript files, 0 CSS stylesheets, and 2 iframes on the page. The site implements the following web standards and features: 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. Notable missing features: XML Sitemap. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 2 platforms: Facebook (@HelenDoronCZ) and Instagram (@helendoroncz). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for helendoron.cz is well-optimized at 36 characters: "Vítejte ve světě Helen Doron English". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 77 characters (well-optimized): "Angličtina pro děti od 3 měsíců až po teenagery osvědčenou a zábavnou metodou". 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://helendoron.cz/, preventing duplicate content issues, the page language is declared as cs, 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 4/4 recommended fields: OG title ("Vítejte ve světě Helen Doron English..."), 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 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.