chance.cz Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of chance.cz on 2026-06-27. The website returned an HTTP 403 status code with a server response time of 390ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 73 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 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 2 technologies across 2 categories powering chance.cz. The detected stack includes Google Tag Manager and StackPath.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, chance.cz receives an overall trust score of 71/100, classified as "Likely Safe".
HTTP Response
Status403
Response Time390ms
ProtocolHTTP/2
Page Size73 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests6
3rd Party Domains2
RedirectNone
Detected Technologies (2)
🏷️ Google Tag Manager
☁️ StackPath
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not set
✓
X-Content-Type-Options
Set ✓
✓
Permissions-Policy
Set ✓
SSL Certificate
IssuerSectigo Limited
Issuer FullcountryName=GB, organizationName=Sectigo Limited, commonName=Sectigo Public Server Authentication CA DV R36
SubjectcommonName=*.chance.cz
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
chance.cz Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, chance.cz receives a trust score of 71/100, 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a quarantine policy, 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, 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 chance.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.
Trust Signals
✅ Valid HTTPS
✅ SPF configured
✅ DMARC configured (p=quarantine)
✅ DKIM configured
⚠️ DNSSEC not enabled
⚠️ Missing Content-Security-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
chance.cz Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned chance.cz 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.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for chance.cz.
CDN: StackPath — accelerates content delivery by caching assets at edge locations worldwide for chance.cz.
We also extracted the following tracking identifiers: Google Tag Manager container GTM-PNN7QP. These IDs can be used to identify other websites operated by the same organization.
Tag Manager
🏷️ Google Tag Manager(95%)
CDN
Tracking IDs
chance.cz Performance, Speed & Core Web Vitals
🤖 AI Summary
chance.cz delivers its homepage in 390ms (server response time), which is considered fast by industry standards. The total page weight is 73 KB, and we detected 6 resource requests loading assets from 2 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.
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 chance.cz produces approximately 0.04g 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 73 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for chance.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.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.04g
RatingA
Page Weight & Optimization
HTML Size73 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests6
3rd Party Domains2
CSS Minified0/0
JS Minified0/0
chance.cz DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
chance.cz resolves to the IPv4 address 172.64.147.137 and also supports IPv6 (2606:4700:440d::6812:2877), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: charles.ns.cloudflare.com and roxy.ns.cloudflare.com. 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 chance.cz is handled by Microsoft 365 with 1 MX records configured: chance-cz.mail.protection.outlook.com. 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 (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 chance.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 3 active subdomains for chance.cz: m.chance.cz, partners.chance.cz, and www.chance.cz. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
172.64.147.137
104.18.40.119
AAAA
2606:4700:440d::6812:2877
NS
charles.ns.cloudflare.com
roxy.ns.cloudflare.com
MX
chance-cz.mail.protection.outlook.com
Email & Authentication
MX ProviderMicrosoft 365
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (3 found)
m.chance.cz partners.chance.cz www.chance.cz
chance.cz Page Content, Images & Accessibility
🤖 AI Summary
The homepage of chance.cz contains 35 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 1 H2 headings, 0 H3 headings, 0 H4 headings.
The link structure consists of 2 internal links pointing to other pages on the same domain and 0 external links pointing to third-party websites. There are 0 external JavaScript files, 0 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.
We detected the following payment methods accepted on chance.cz: JCB. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates.
Content Structure
H1Ověření
H2 Tags1
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links2
External Links0
Assets & Features
JavaScript Files0
JS Minified0/0
CSS Files0
CSS Minified0/0
Iframes0
Images0
Missing Alt0
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
Payment Methods Detected
chance.cz SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for chance.cz is good at 7 characters: "Ověření". The length is acceptable, though it may be slightly truncated in some search result displays.
No meta description is configured for chance.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.
A favicon is configured.
No Open Graph tags are configured. When someone shares a link to chance.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.
Google SERP Preview
Ověření
https://chance.cz
Meta Tags
TitleOvěření...
Title Length7 chars
Meta Desc Length0 chars
H1Ověření
Language—
Canonical—
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Type—
OG ImageNot set
Twitter Card—
FaviconSet ✓
chance.cz Related Domains & Cross-References
🤖 AI Summary
Related domain discovery works by finding other websites that share the same IP address, Google Tag Manager container ID, Google Analytics property, or advertising pixel IDs with chance.cz. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. We extracted the following tracking IDs that can be used for cross-referencing: gtm_id: GTM-PNN7QP.
Tracking IDs for Cross-Referencing
Related Domains
Related domain data requires database (populated after batch crawl)