sdsys.ru

We performed a comprehensive analysis of sdsys.ru on 2026-06-29. The website returned an HTTP 200 status code with a server response time of 5698ms. The page is served over HTTP/1.1 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 149 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 1.2 with the ECDHE-RSA-AES256-GCM-SHA384 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2026-09-21, which is 84 days from now. The security headers analysis reveals a score of 35/100 (below average). The following security headers are properly configured: Strict-Transport-Security (HSTS) and Referrer-Policy. However, the site is missing Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, 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 9 technologies across 9 categories powering sdsys.ru. The detected stack includes WordPress, WooCommerce, Google Analytics 4, reCAPTCHA v3, Cloudflare, Google Fonts, YouTube Embed, jQuery, and Font Awesome. The primary e-commerce platform is WooCommerce. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, sdsys.ru receives an overall trust score of 75/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, sdsys.ru receives a trust score of 75/100, 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, HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks, a valid SSL certificate issued by Let's Encrypt with 84 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), 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 sdsys.ru 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 sdsys.ru and identified 9 distinct technologies across 9 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 — manages the content and page structure for sdsys.ru. Ecommerce: WooCommerce — powers the online store and shopping functionality for sdsys.ru. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for sdsys.ru. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for sdsys.ru. CDN: Cloudflare — accelerates content delivery by caching assets at edge locations worldwide for sdsys.ru. Fonts: Google Fonts — delivers web fonts for typography for sdsys.ru. Video: YouTube Embed — provides video hosting and playback for sdsys.ru. JavaScript Library: jQuery — provides utility functions and DOM manipulation for sdsys.ru. Icon Set: Font Awesome — provides additional functionality for sdsys.ru. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-1429546. These IDs can be used to identify other websites operated by the same organization.

sdsys.ru delivers its homepage in 5698ms (server response time), which is considered slow by industry standards. The total page weight is 149 KB, and we detected 167 resource requests loading assets from 13 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 0 out of 1 JavaScript files are minified. Minifying the remaining 3 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 sdsys.ru produces approximately 0.07g 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 149 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for sdsys.ru. 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.

sdsys.ru resolves to the IPv4 address 87.239.109.179, 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 6 name servers: ns1.sdsys.ru, ns3-l2.nic.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru, ns8-cloud.nic.ru, and ns8-l2.nic.ru. Having 6 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 sdsys.ru is handled by sdsys.ru with 2 MX records configured: mail.sdsys.ru and mail2.sdsys.ru. 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 sdsys.ru. 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 sdsys.ru contains 575 words of visible text content. This is a moderate amount of content. The page is structured with 4 H2 headings, 7 H3 headings, 18 H4 headings, 0 H5, and 4 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 92 internal links pointing to other pages on the same domain and 3 external links pointing to third-party websites. There are 1 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), robots.txt (controls search engine crawling behavior), and Schema.org structured data (BreadcrumbList, ListItem, Organization, WebPage, and WebSite). The website has social media presence across 1 platforms: Youtube (@UCFlOt0Zof8YelphbIXRfGXg). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for sdsys.ru is too long at 103 characters: "Автоматизация клиник в Москве – МИС Инфоклиника, телемедицина, интеграция с ЕГИС...". At 103 characters, the title will likely be truncated in Google search results (recommended: 50-60 characters). Consider shortening it while keeping the most important keywords at the beginning. The meta description is 235 characters (slightly long): "Медицинские информационные системы (МИС) для клиник, стоматологий и лабораторий в Москве. Автоматизация работы, телемеди...". 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://sdsys.ru/, preventing duplicate content issues, the page language is declared as ru-ru, the meta robots directive is set to max-image-preview:large, and a favicon is configured. Open Graph meta tags are configured with 3/4 recommended fields: OG title ("Автоматизация клиник в Москве – МИС Инфоклиника, телемедицин..."), OG description, OG type (article). 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 is configured, which controls how links appear when shared on Twitter/X. The "summary" 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, ListItem, Organization, 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.