czechy.mantica.net Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of czechy.mantica.net on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 12969ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 8 KB, and the site is served behind a CDN (Content Delivery Network).
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 2 technologies across 2 categories powering czechy.mantica.net. The detected stack includes Google Analytics 4 and jQuery 1.11.2..
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, czechy.mantica.net receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time12969ms
ProtocolHTTP/2
Page Size8 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests41
3rd Party Domains3
RedirectNone
Detected Technologies (2)
📊 Google Analytics 4
📦 jQuery
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
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=mantica.net
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
czechy.mantica.net Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, czechy.mantica.net receives a trust score of 53/100, 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.
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 czechy.mantica.net 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
⚠️ DNSSEC not enabled
⚠️ 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
czechy.mantica.net Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned czechy.mantica.net and identified 2 distinct technologies across 2 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for czechy.mantica.net.
JavaScript Library: jQuery (version 1.11.2.) — provides utility functions and DOM manipulation for czechy.mantica.net.
Analytics
📊 Google Analytics 4(95%)
JavaScript Library
czechy.mantica.net Performance, Speed & Core Web Vitals
🤖 AI Summary
czechy.mantica.net delivers its homepage in 12969ms (server response time), which is considered slow by industry standards. The total page weight is 8 KB, and we detected 41 resource requests loading assets from 3 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 11 CSS files and 2 out of 18 JavaScript files are minified. Minifying the remaining 27 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.
The site is served through a Content Delivery Network (CDN), which caches static assets at edge servers around the world. This means visitors from different geographic regions receive content from the nearest edge server, significantly reducing latency. CDN usage is particularly important for websites with a global audience, as it can reduce page load times by 40-60% for distant visitors.
From an environmental perspective, each page view of czechy.mantica.net produces approximately 0.0g 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 8 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for czechy.mantica.net. 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 view0.0g
RatingA
Page Weight & Optimization
HTML Size8 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests41
3rd Party Domains3
CSS Minified0/11
JS Minified2/18
czechy.mantica.net DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
czechy.mantica.net resolves to the IPv4 address 104.21.65.243 and also supports IPv6 (2606:4700:3036::6815:41f3), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
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 not enabled for czechy.mantica.net. 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 czechy.mantica.net: admin.czechy.mantica.net, api.czechy.mantica.net, app.czechy.mantica.net, apps.czechy.mantica.net, blog.czechy.mantica.net, cdn.czechy.mantica.net, community.czechy.mantica.net, and dev.czechy.mantica.net. Plus 17 additional subdomains. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
104.21.65.243
172.67.195.84
AAAA
2606:4700:3036::6815:41f3
Email & Authentication
MX Provider—
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (25 found)
admin.czechy.mantica.net api.czechy.mantica.net app.czechy.mantica.net apps.czechy.mantica.net blog.czechy.mantica.net cdn.czechy.mantica.net community.czechy.mantica.net dev.czechy.mantica.net developers.czechy.mantica.net docs.czechy.mantica.net ftp.czechy.mantica.net help.czechy.mantica.net m.czechy.mantica.net mail.czechy.mantica.net partners.czechy.mantica.net portal.czechy.mantica.net shop.czechy.mantica.net smtp.czechy.mantica.net staging.czechy.mantica.net static.czechy.mantica.net status.czechy.mantica.net store.czechy.mantica.net support.czechy.mantica.net webmail.czechy.mantica.net www.czechy.mantica.net
czechy.mantica.net Page Content, Images & Accessibility
🤖 AI Summary
The homepage of czechy.mantica.net contains 18 words of visible text content. This is a relatively short page — adding more descriptive content could improve search engine visibility. The page is structured with 0 H2 headings, 0 H3 headings, 0 H4 headings.
The page includes 2 images. 2 images (100%) 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 0% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 0 internal links pointing to other pages on the same domain and 1 external link pointing to third-party websites. There are 18 external JavaScript files, 11 CSS stylesheets, and 0 iframes on the page.
Notable missing features: XML Sitemap, robots.txt, and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
Content Structure
H1—
H2 Tags0
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links0
External Links1
Assets & Features
JavaScript Files18
JS Minified2/18
CSS Files11
CSS Minified0/11
Iframes0
Images2
Missing Alt2
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
czechy.mantica.net SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for czechy.mantica.net is well-optimized at 34 characters: "Dziennik elektroniczny mantica.net". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 100 characters (well-optimized): "Dziennik elektroniczny. System kontroli frekwencji i postępów w nauce. Darmowe drukowanie świadectw.". 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 meta robots directive is set to index, follow and a favicon is configured.
No Open Graph tags are configured. When someone shares a link to czechy.mantica.net 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 meta keywords tag contains 15 terms including internetowy, dziennik, lekcyjny, edziennik, and e-dziennik. 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
Dziennik elektroniczny mantica.net
https://czechy.mantica.net
Dziennik elektroniczny. System kontroli frekwencji i postępów w nauce. Darmowe drukowanie świadectw.
Meta Tags
TitleDziennik elektroniczny mantica.net...
Title Length34 chars
Meta Desc Length100 chars
H1—
Language—
Canonical—
Meta Robotsindex, follow
Meta Keywordsinternetowy, dziennik, lekcyjny, edziennik, e-dziennik, idzi...
Schema.org & Social
Schema Types—
OG Type—
OG ImageNot set
Twitter Card—
FaviconSet ✓