ulcerozni-kolitida.cz

We performed a comprehensive analysis of ulcerozni-kolitida.cz on 2026-07-05. The website returned an HTTP 200 status code with a server response time of 12346ms. The page is served over HTTP/2 protocol, however no compression (Gzip or Brotli) is enabled, which means the page is transferred at its full uncompressed size. The total page weight is 29 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 2026-08-11, which is 37 days from now. The security headers analysis reveals a score of 60/100 (moderate). The following security headers are properly configured: X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. However, the site is missing Content-Security-Policy and Strict-Transport-Security (HSTS), which could expose the site and its users to cross-site scripting (XSS), clickjacking, and other web-based attacks. Our technology detection scan identified 3 technologies across 3 categories powering ulcerozni-kolitida.cz. The detected stack includes Google Tag Manager, Meta Pixel, and jQuery. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, ulcerozni-kolitida.cz receives an overall trust score of 72/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, ulcerozni-kolitida.cz receives a trust score of 72/100, 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 37 days until expiration, 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 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 ulcerozni-kolitida.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 ulcerozni-kolitida.cz and identified 3 distinct technologies across 3 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for ulcerozni-kolitida.cz. Advertising: Meta Pixel — handles advertising pixel tracking and conversion measurement for ulcerozni-kolitida.cz. JavaScript Library: jQuery — provides utility functions and DOM manipulation for ulcerozni-kolitida.cz. We also extracted the following tracking identifiers: Google Tag Manager container GTM-MFNSZ2F and Meta (Facebook) Pixel ID 2566964356832039. These IDs can be used to identify other websites operated by the same organization.

ulcerozni-kolitida.cz delivers its homepage in 12346ms (server response time), which is considered slow by industry standards. The total page weight is 29 KB, and we detected 22 resource requests loading assets from 5 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. No compression is currently enabled on ulcerozni-kolitida.cz. Enabling Brotli or Gzip compression could reduce page size by 60-80% for text-based assets (HTML, CSS, JavaScript), significantly improving load times and reducing bandwidth costs. This is one of the simplest and most impactful performance optimizations available. Asset minification status: 1 out of 1 CSS files and 1 out of 1 JavaScript files are minified. All assets are properly minified, reducing file sizes by removing whitespace, comments, and shortening variable names. Minification is a best practice that reduces download sizes without affecting functionality. From an environmental perspective, each page view of ulcerozni-kolitida.cz produces approximately 0.01g 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 29 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for ulcerozni-kolitida.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.

ulcerozni-kolitida.cz resolves to the IPv4 address 88.198.166.17 and also supports IPv6 (2a01:4f8:c17:82::2), demonstrating modern network infrastructure readiness. The domain has 1 A record(s) configured. The domain name system is managed by 4 name servers: ns.wedos.com, ns.wedos.cz, ns.wedos.eu, and ns.wedos.net. 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. SPF is not configured, meaning any server could potentially send emails pretending to be from this domain. This is a significant email security concern. DMARC is not configured, leaving the domain vulnerable to email spoofing and phishing attacks that impersonate this domain. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is enabled for ulcerozni-kolitida.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 ulcerozni-kolitida.cz contains 2,028 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 7 H2 headings, 1 H3 headings, 1 H4 headings. The page includes 2 images. All images have proper alt text attributes ✓, which is excellent for both accessibility (screen readers) and SEO (search engines can understand image content). The link structure consists of 12 internal links pointing to other pages on the same domain and 4 external links pointing to third-party websites. There are 1 external JavaScript files, 1 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 Schema.org structured data (Page and WebPage). Notable missing features: robots.txt. Adding these could improve search engine discoverability and rich result eligibility.

The title tag for ulcerozni-kolitida.cz is well-optimized at 42 characters: "Ulcerózní kolitida - ulcerozni-kolitida.cz". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. No meta description is configured for ulcerozni-kolitida.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 page language is declared as cs and the meta robots directive is set to noindex,nofollow. No Open Graph tags are configured. When someone shares a link to ulcerozni-kolitida.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. The site implements Schema.org structured data with the following types: Page and WebPage. 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.