inmail.cz

HTTPS HTTP/2 HSTS Gzip StackPath Crawled in 38,006ms · June 27, 2026 21:12 UTC

inmail.cz Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of inmail.cz on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 7785ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 20 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 20/100 (poor). The following security headers are properly configured: Strict-Transport-Security (HSTS). However, the site is missing Content-Security-Policy, 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 5 technologies across 5 categories powering inmail.cz. The detected stack includes Bootstrap, reCAPTCHA v3, StackPath, jQuery 1.11.1., and Font Awesome. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, inmail.cz receives an overall trust score of 67/100, classified as "Likely Safe".
67
/ 100
Trust Score
20
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time7785ms
ProtocolHTTP/2
Page Size20 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Servernginx
Total Requests60
3rd Party Domains10
Redirect1 hop(s)
Detected Technologies (5)
🎨 Bootstrap 🔒 reCAPTCHA v3 ☁️ StackPath 📦 jQuery 🎯 Font Awesome
Security Headers
Content-Security-Policy
Not set
Strict-Transport-Security (HSTS)
Set ✓
X-Frame-Options
Not set
X-Content-Type-Options
Not set
Referrer-Policy
Not set
Permissions-Policy
Not set
SSL Certificate
IssuerDigiCert Inc
Issuer FullcountryName=US, organizationName=DigiCert Inc, organizationalUnitName=www.digicert.com, commonName=Thawte TLS RSA CA G1
SubjectcommonName=www.inmail.cz
Type
TLS VersionTLS 1.2
Cipher SuiteECDHE-ECDSA-CHACHA20-POLY1305
Algorithm
Issued
Expires— (? days)
SANs

inmail.cz Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, inmail.cz receives a trust score of 67/100, 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a reject policy — the strongest available setting, 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, 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, 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 inmail.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.
67
/ 100
Likely Safe
Trust Signals
Valid HTTPS
HSTS enabled
SPF configured
DMARC configured (p=reject)
DNSSEC 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

inmail.cz Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned inmail.cz and identified 5 distinct technologies across 5 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 inmail.cz. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for inmail.cz. CDN: StackPath — accelerates content delivery by caching assets at edge locations worldwide for inmail.cz. JavaScript Library: jQuery (version 1.11.1.) — provides utility functions and DOM manipulation for inmail.cz. Icon Set: Font Awesome — provides additional functionality for inmail.cz.
CSS Framework
🎨 Bootstrap(95%)
Security
🔒 reCAPTCHA v3(95%)
CDN
☁️ StackPath(95%)
JavaScript Library
📦 jQuery 1.11.1.(100%)
Icon Set
🎯 Font Awesome(95%)

inmail.cz Performance, Speed & Core Web Vitals

🤖 AI Summary
inmail.cz delivers its homepage in 7785ms (server response time), which is considered slow by industry standards. The total page weight is 20 KB, and we detected 60 resource requests loading assets from 10 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 4 CSS files and 2 out of 4 JavaScript files are minified. Minifying the remaining 4 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 inmail.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 20 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for inmail.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 view0.01g
RatingA
Page Weight & Optimization
HTML Size20 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests60
3rd Party Domains10
CSS Minified2/4
JS Minified2/4

inmail.cz DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
inmail.cz resolves to the IPv4 address 217.198.120.14 and also supports IPv6 (2a00:19a0:3:78:0:d9c6:780e:1), demonstrating modern network infrastructure readiness. The domain has 1 A record(s) configured. The domain name system is managed by 3 name servers: ns1.regzone.cz, ns1.regzone.de, and ns1.regzone.info. Having 3 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 inmail.cz is handled by zoner.com with 3 MX records configured: relay.zoner.com, 10mx.zoner.com, and 15mx.zoner.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 reject policy — the strongest setting, instructing receiving servers to reject unauthorized emails entirely. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is enabled for inmail.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. Our subdomain enumeration scan discovered 3 active subdomains for inmail.cz: dev.inmail.cz, smtp.inmail.cz, and www.inmail.cz. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
217.198.120.14
AAAA
2a00:19a0:3:78:0:d9c6:780e:1
NS
ns1.regzone.cz
ns1.regzone.de
ns1.regzone.info
MX
relay.zoner.com
10mx.zoner.com
15mx.zoner.com
Email & Authentication
SPF
DMARC p=reject
DKIM
DNSSEC
MX Providerzoner.com
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportYes ✓
Subdomains (3 found)
dev.inmail.cz smtp.inmail.cz www.inmail.cz

inmail.cz Page Content, Images & Accessibility

🤖 AI Summary
The homepage of inmail.cz contains 754 words of visible text content. This is a moderate amount of content. The page is structured with 2 H2 headings, 7 H3 headings, 0 H4 headings. The page includes 15 images. 3 images (20%) 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 80% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 7 internal links pointing to other pages on the same domain and 23 external links pointing to third-party websites. There are 4 external JavaScript files, 4 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.
754
Words
15
Images
80%
Alt Text Score
20
Page Size (KB)
Content Structure
H1
H2 Tags2
H3 Tags7
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links7
External Links23
Assets & Features
JavaScript Files4
JS Minified2/4
CSS Files4
CSS Minified2/4
Iframes0
Images15
Missing Alt3
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo

inmail.cz SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for inmail.cz is good at 22 characters: "Přihlášení | inMail.cz". The length is acceptable, though it may be slightly truncated in some search result displays. No meta description is configured for inmail.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 en and a favicon is configured. No Open Graph tags are configured. When someone shares a link to inmail.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
Přihlášení | inMail.cz
https://inmail.cz
Meta Tags
TitlePřihlášení | inMail.cz...
Title Length22 chars
Meta Desc Length0 chars
H1
Languageen
Canonical
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types
OG Type
OG ImageNot set
Twitter Card
FaviconSet ✓