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1blog.cz

HTTPS HTTP/2 Gzip Crawled in 34,784ms · June 27, 2026 21:41 UTC

1blog.cz Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of 1blog.cz on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 25232ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 27 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 15/100 (poor). The following security headers are properly configured: Referrer-Policy. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), 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 4 technologies across 4 categories powering 1blog.cz. The detected stack includes Google Analytics 4, Google AdSense, jQuery 3.5.1., and Font Awesome. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, 1blog.cz receives an overall trust score of 55/100, classified as "Caution Advised".
55
/ 100
Trust Score
15
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time25232ms
ProtocolHTTP/2
Page Size27 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerApache/2.4.41 (Ubuntu)
Total Requests83
3rd Party Domains9
Redirect1 hop(s)
Detected Technologies (4)
📊 Google Analytics 4 📢 Google AdSense 📦 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
Set ✓
Permissions-Policy
Not set
SSL Certificate
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=YR2
SubjectcommonName=1blog.cz
Type
TLS VersionTLS 1.2
Cipher SuiteECDHE-RSA-AES256-GCM-SHA384
Algorithm
Issued
Expires— (? days)
SANs

1blog.cz Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, 1blog.cz receives a trust score of 55/100, 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 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), 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 1blog.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.
55
/ 100
Caution Advised
Trust Signals
Valid HTTPS
DNSSEC enabled
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
Blacklist Checks (8/8 clean)
Google Safe Browsing clean
Phishtank clean
Urlhaus clean
Openphish clean
Dnsfilter clean
Spamhaus Dbl clean
Surbl clean
Virustotal clean

1blog.cz Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned 1blog.cz and identified 4 distinct technologies across 4 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 1blog.cz. Advertising: Google AdSense — handles advertising pixel tracking and conversion measurement for 1blog.cz. JavaScript Library: jQuery (version 3.5.1.) — provides utility functions and DOM manipulation for 1blog.cz. Icon Set: Font Awesome — provides additional functionality for 1blog.cz.
Analytics
📊 Google Analytics 4(95%)
Advertising
📢 Google AdSense(95%)
JavaScript Library
📦 jQuery 3.5.1.(100%)
Icon Set
🎯 Font Awesome(95%)

1blog.cz Performance, Speed & Core Web Vitals

🤖 AI Summary
1blog.cz delivers its homepage in 25232ms (server response time), which is considered slow by industry standards. The total page weight is 27 KB, and we detected 83 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: 1 out of 5 CSS files and 1 out of 10 JavaScript files are minified. Minifying the remaining 13 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 1blog.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 27 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 1blog.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 Size27 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests83
3rd Party Domains9
CSS Minified1/5
JS Minified1/10

1blog.cz DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
1blog.cz resolves to the IPv4 address 185.119.98.112, 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 3 name servers: ns1.tele3.cz, ns2.tele3.cz, and ns3.tele3.eu. 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 1blog.cz is handled by dc3.cz with 1 MX records configured: mail.dc3.cz. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server. 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 enabled for 1blog.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 25 active subdomains for 1blog.cz: admin.1blog.cz, api.1blog.cz, app.1blog.cz, apps.1blog.cz, blog.1blog.cz, cdn.1blog.cz, community.1blog.cz, and dev.1blog.cz. 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
185.119.98.112
NS
ns1.tele3.cz
ns2.tele3.cz
ns3.tele3.eu
MX
mail.dc3.cz
Email & Authentication
SPF
DMARC p=—
DKIM
DNSSEC
MX Providerdc3.cz
Registrar
Organisation
Country
Contact
Registered
Expires
Domain Age
IPv6 SupportNo
Subdomains (25 found)
admin.1blog.cz api.1blog.cz app.1blog.cz apps.1blog.cz blog.1blog.cz cdn.1blog.cz community.1blog.cz dev.1blog.cz developers.1blog.cz docs.1blog.cz ftp.1blog.cz help.1blog.cz m.1blog.cz mail.1blog.cz partners.1blog.cz portal.1blog.cz shop.1blog.cz smtp.1blog.cz staging.1blog.cz static.1blog.cz status.1blog.cz store.1blog.cz support.1blog.cz webmail.1blog.cz www.1blog.cz

1blog.cz Page Content, Images & Accessibility

🤖 AI Summary
The homepage of 1blog.cz contains 218 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, 2 H3 headings, 0 H4 headings. The page includes 4 images. All images have proper alt text attributes ✓, which is excellent for both accessibility (screen readers) and SEO (search engines can understand image content). The link structure consists of 51 internal links pointing to other pages on the same domain and 7 external links pointing to third-party websites. There are 10 external JavaScript files, 5 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: RSS feed for content syndication. Notable missing features: XML Sitemap, robots.txt, and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
218
Words
4
Images
100%
Alt Text Score
27
Page Size (KB)
Content Structure
H11blog.cz
H2 Tags1
H3 Tags2
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links51
External Links7
Assets & Features
JavaScript Files10
JS Minified1/10
CSS Files5
CSS Minified1/5
Iframes0
Images4
Missing Alt0
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedYes ✓

1blog.cz SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for 1blog.cz is good at 15 characters: "Úvod - 1blog.cz". The length is acceptable, though it may be slightly truncated in some search result displays. No meta description is configured for 1blog.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 cs-cz. No Open Graph tags are configured. When someone shares a link to 1blog.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
Úvod - 1blog.cz
https://1blog.cz
Meta Tags
TitleÚvod - 1blog.cz...
Title Length15 chars
Meta Desc Length0 chars
H11blog.cz
Languagecs-cz
Canonical
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types
OG Type
OG ImageNot set
Twitter Card
FaviconNot set