centrsna.by Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of centrsna.by on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 2138ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 1296 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 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 7 technologies across 7 categories powering centrsna.by. The detected stack includes Bootstrap, Vite, Google Tag Manager, reCAPTCHA v3, Google Fonts, jQuery 2.2.4., and Font Awesome.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, centrsna.by receives an overall trust score of 59/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time2138ms
ProtocolHTTP/2
Page Size1296 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Servernginx
Total Requests1596
3rd Party Domains9
RedirectNone
Detected Technologies (7)
🎨 Bootstrap
🔨 Vite
🏷️ Google Tag Manager
🔒 reCAPTCHA v3
🔤 Google Fonts
📦 jQuery
🎯 Font Awesome
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not set
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=YR2
SubjectcommonName=centrsna.by
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
centrsna.by Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, centrsna.by receives a trust score of 59/100, 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 DMARC email authentication with a quarantine 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 centrsna.by 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.
Trust Signals
✅ Valid HTTPS
✅ SPF configured
✅ DMARC configured (p=quarantine)
⚠️ DNSSEC not enabled
✅ Sitemap.xml found
✅ Robots.txt found
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
⚠️ Missing Referrer-Policy
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
centrsna.by Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned centrsna.by and identified 7 distinct technologies across 7 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
CSS Framework: Bootstrap — provides the styling and responsive layout system for centrsna.by.
Build Tool: Vite — bundles and optimizes the JavaScript and CSS assets for centrsna.by.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for centrsna.by.
Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for centrsna.by.
Fonts: Google Fonts — delivers web fonts for typography for centrsna.by.
JavaScript Library: jQuery (version 2.2.4.) — provides utility functions and DOM manipulation for centrsna.by.
Icon Set: Font Awesome — provides additional functionality for centrsna.by.
We also extracted the following tracking identifiers: Google Tag Manager container GTM-MMQM249. These IDs can be used to identify other websites operated by the same organization.
CSS Framework
Build Tool
Tag Manager
🏷️ Google Tag Manager(95%)
Security
Fonts
JavaScript Library
Icon Set
Tracking IDs
centrsna.by Performance, Speed & Core Web Vitals
🤖 AI Summary
centrsna.by delivers its homepage in 2138ms (server response time), which is considered slow by industry standards. The total page weight is 1296 KB, and we detected 1596 resource requests loading assets from 9 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: 2 out of 5 CSS files and 3 out of 6 JavaScript files are minified. Minifying the remaining 6 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 centrsna.by produces approximately 0.63g of CO₂, earning a carbon rating of F. The website's carbon footprint could be reduced by optimizing images, enabling compression, reducing third-party scripts, and leveraging caching. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 1296 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for centrsna.by. 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.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.63g
RatingF
Page Weight & Optimization
HTML Size1296 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests1596
3rd Party Domains9
CSS Minified2/5
JS Minified3/6
centrsna.by DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
centrsna.by resolves to the IPv4 address 93.125.99.135, 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: u1.hoster.by and u2.hoster.by. 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 centrsna.by is handled by hoster.by with 1 MX records configured: mailbe06.hoster.by. 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 quarantine policy — a moderate setting, directing unauthorized emails to spam/junk folders. 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 centrsna.by. 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 2 active subdomains for centrsna.by: mail.centrsna.by and www.centrsna.by. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
Email & Authentication
MX Providerhoster.by
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (2 found)
mail.centrsna.by www.centrsna.by
centrsna.by Page Content, Images & Accessibility
🤖 AI Summary
The homepage of centrsna.by contains 4,638 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, 0 H3 headings, 0 H4 headings.
The page includes 120 images. 9 images (8%) 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 92% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 1,468 internal links pointing to other pages on the same domain and 18 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 6 external JavaScript files, 5 CSS stylesheets, and 0 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 (AggregateRating, Product, and WebSite).
We detected the following payment methods accepted on centrsna.by: Visa and JCB. 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 (@centrsnaby), Instagram (@centrsnaby), and Youtube (@UC3aGPGXaJYDcUwppx6Szotw). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1Медицинский центр
H2 Tags7
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links1468
External Links18
Assets & Features
JavaScript Files6
JS Minified3/6
CSS Files5
CSS Minified2/5
Iframes0
Images120
Missing Alt9
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Schema.org Types
AggregateRatingProductWebSite
Payment Methods Detected
Social Media Presence
Facebook: @centrsnabyInstagram: @centrsnabyYoutube: @UC3aGPGXaJYDcUwppx6Szotw
centrsna.by SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for centrsna.by is good at 65 characters: "Медицинский центр «Центр здорового сна». Частный платный медцентр". The length is acceptable, though it may be slightly truncated in some search result displays.
The meta description is 164 characters (slightly long): "В многопрофильном частном медицинском центре «Центр здорового сна» в Минске работают высококвалифицированные специалисты...". 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 page language is declared as ru and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Медицинский центр «Центр здорового сна». Частный платный мед..."), OG description, OG image (social sharing thumbnail), 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.
The site implements Schema.org structured data with the following types: AggregateRating, Product, 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.
The meta keywords tag contains 6 terms including медицинский центр, медицинские услуги, медицинская клиника, частный медицинский центр, and платные медицинские услуги. Note: Google has officially confirmed that it does not use the meta keywords tag as a ranking signal. However, some other search engines (Bing, Yandex) may still reference it.
Google SERP Preview
Медицинский центр «Центр здорового сна». Частный платный медцентр
https://centrsna.by
В многопрофильном частном медицинском центре «Центр здорового сна» в Минске работают высококвалифицированные специалисты. ✔Индивидуальный подход в платном медцентре
Meta Tags
TitleМедицинский центр «Центр здорового сна». Частный платный мед...
Title Length65 chars
Meta Desc Length164 chars
H1Медицинский центр
Languageru
Canonical—
Meta Robotsnot set
Meta Keywordsмедицинский центр, медицинские услуги, медицинская клиника, ...
Schema.org & Social
Schema TypesAggregateRating, Product, WebSite
OG Typearticle
OG ImageSet ✓
Twitter Card—
FaviconSet ✓
Open Graph Preview
centrsna.by
Медицинский центр «Центр здорового сна». Частный платный медцентр
В многопрофильном частном медицинском центре «Центр здорового сна» в Минске работают высококвалифицированные специалисты. ✔Индивидуальный подход в платном медце