22zsplzen.cz

We performed a comprehensive analysis of 22zsplzen.cz on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 28266ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 263 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 15/100 (poor). The following security headers are properly configured: X-Content-Type-Options. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-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 8 technologies across 8 categories powering 22zsplzen.cz. The detected stack includes WordPress 6.8.5, WooCommerce, React, Webpack, Google Analytics 4, Google Fonts, 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, 22zsplzen.cz receives an overall trust score of 58/100, classified as "Caution Advised".

After conducting a thorough safety and legitimacy analysis, 22zsplzen.cz receives a trust score of 58/100, which places it in the "Caution Advised" 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification. 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 22zsplzen.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 22zsplzen.cz and identified 8 distinct technologies across 8 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 6.8.5) — manages the content and page structure for 22zsplzen.cz. Ecommerce: WooCommerce — powers the online store and shopping functionality for 22zsplzen.cz. UI Library: React — handles the user interface rendering and component management for 22zsplzen.cz. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for 22zsplzen.cz. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for 22zsplzen.cz. Fonts: Google Fonts — delivers web fonts for typography for 22zsplzen.cz. JavaScript Library: jQuery — provides utility functions and DOM manipulation for 22zsplzen.cz. Icon Set: Font Awesome — provides additional functionality for 22zsplzen.cz.

22zsplzen.cz delivers its homepage in 28266ms (server response time), which is considered slow by industry standards. The total page weight is 263 KB, and we detected 366 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: 23 out of 50 CSS files and 59 out of 76 JavaScript files are minified. Minifying the remaining 44 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 22zsplzen.cz 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 263 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 22zsplzen.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.

22zsplzen.cz resolves to the IPv4 address 85.10.206.208, 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 2 name servers: ns.m2hosting.cz and ns2.m2hosting.cz. 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. Email for 22zsplzen.cz is handled by Google Workspace with 5 MX records configured: aspmx.l.google.com, alt1.aspmx.l.google.com, and alt2.aspmx.l.google.com and 2 more. 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 is not configured, leaving the domain vulnerable to email spoofing and phishing attacks that impersonate this domain. 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 not enabled for 22zsplzen.cz. 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. Our subdomain enumeration scan discovered 25 active subdomains for 22zsplzen.cz: admin.22zsplzen.cz, api.22zsplzen.cz, app.22zsplzen.cz, apps.22zsplzen.cz, blog.22zsplzen.cz, cdn.22zsplzen.cz, community.22zsplzen.cz, and dev.22zsplzen.cz. Plus 17 additional subdomains. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

The homepage of 22zsplzen.cz contains 761 words of visible text content. This is a moderate amount of content. The page is structured with 4 H2 headings, 6 H3 headings, 10 H4 headings, 3 H5, and 0 H6 headings. The page includes 23 images. 14 images (61%) 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 39% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 160 internal links pointing to other pages on the same domain and 37 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 76 external JavaScript files, 50 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: RSS feed for content syndication. Notable missing features: XML Sitemap, 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 1 platforms: Instagram (@22.zsplzen). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for 22zsplzen.cz is good at 12 characters: "22. ZŠ Plzeň". The length is acceptable, though it may be slightly truncated in some search result displays. No meta description is configured for 22zsplzen.cz. 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 canonical url is correctly set to https://www.22zsplzen.cz/, preventing duplicate content issues, the page language is declared as cs, the meta robots directive is set to max-image-preview:large, and a favicon is configured. No Open Graph tags are configured. When someone shares a link to 22zsplzen.cz on social media, the platform will have to guess the title, description, and image — often producing unattractive or inaccurate previews. Adding OG tags is essential for social media marketing.