cerascreen.de Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of cerascreen.de on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 10995ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 839 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 70/100 (good). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, and X-Content-Type-Options. However, the site is missing 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 8 technologies across 8 categories powering cerascreen.de. The detected stack includes Shopify, Vite, Google Tag Manager, Klaviyo, Shop Pay, reCAPTCHA v3, Amazon CloudFront, and jQuery. The primary e-commerce platform is Shopify.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, cerascreen.de receives an overall trust score of 73/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time10995ms
ProtocolHTTP/2
Page Size839 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests383
3rd Party Domains19
Redirect1 hop(s)
Detected Technologies (8)
🛒 Shopify
🔨 Vite
🏷️ Google Tag Manager
📧 Klaviyo
💳 Shop Pay
🔒 reCAPTCHA v3
☁️ Amazon CloudFront
📦 jQuery
Security Headers
✓
Content-Security-Policy
Set ✓
✓
Strict-Transport-Security (HSTS)
Set ✓
✓
X-Content-Type-Options
Set ✓
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=YE1
SubjectcommonName=cerascreen.de
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
cerascreen.de Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, cerascreen.de receives a trust score of 73/100, 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, and DMARC email authentication with a none policy.
Areas of concern include: 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 cerascreen.de 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
✅ HSTS enabled
✅ SPF configured
✅ DMARC configured (p=none)
⚠️ DNSSEC not enabled
✅ Sitemap.xml found
✅ Robots.txt found
⚠️ 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
cerascreen.de Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned cerascreen.de and identified 8 distinct technologies across 8 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
Ecommerce: Shopify — powers the online store and shopping functionality for cerascreen.de.
Build Tool: Vite — bundles and optimizes the JavaScript and CSS assets for cerascreen.de.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for cerascreen.de.
Email Marketing: Klaviyo — manages email campaigns and subscriber lists for cerascreen.de.
Payments: Shop Pay — processes payment transactions for cerascreen.de.
Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for cerascreen.de.
CDN: Amazon CloudFront — accelerates content delivery by caching assets at edge locations worldwide for cerascreen.de.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for cerascreen.de.
We also extracted the following tracking identifiers: Google Tag Manager container GTM-5VKQP9S. These IDs can be used to identify other websites operated by the same organization.
Ecommerce
Build Tool
Tag Manager
🏷️ Google Tag Manager(95%)
Email Marketing
Payments
Security
CDN
☁️ Amazon CloudFront(95%)
JavaScript Library
Tracking IDs
cerascreen.de Performance, Speed & Core Web Vitals
🤖 AI Summary
cerascreen.de delivers its homepage in 10995ms (server response time), which is considered slow by industry standards. The total page weight is 839 KB, and we detected 383 resource requests loading assets from 19 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 3 CSS files and 5 out of 13 JavaScript files are minified. Minifying the remaining 11 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 cerascreen.de produces approximately 0.41g of CO₂, earning a carbon rating of D. 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 839 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for cerascreen.de. 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 view0.41g
RatingD
Page Weight & Optimization
HTML Size839 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests383
3rd Party Domains19
CSS Minified0/3
JS Minified5/13
cerascreen.de DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
cerascreen.de resolves to the IPv4 address 23.227.38.32, 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: ns51.domaincontrol.com and ns52.domaincontrol.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 cerascreen.de is handled by Google Workspace with 5 MX records configured: aspmx.l.google.com, alt1.aspmx.l.google.com, and alt2.aspmx.l.google.com and 2 more. 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 none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. 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 cerascreen.de. 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 5 active subdomains for cerascreen.de: help.cerascreen.de, mail.cerascreen.de, staging.cerascreen.de, support.cerascreen.de, and www.cerascreen.de. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
ns51.domaincontrol.com
ns52.domaincontrol.com
MX
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
Email & Authentication
MX ProviderGoogle Workspace
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (5 found)
help.cerascreen.de mail.cerascreen.de staging.cerascreen.de support.cerascreen.de www.cerascreen.de
cerascreen.de Page Content, Images & Accessibility
🤖 AI Summary
The homepage of cerascreen.de contains 1,359 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 9 H2 headings, 10 H3 headings, 0 H4 headings, 0 H5, and 1 H6 headings.
The page includes 83 images. 17 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 249 internal links pointing to other pages on the same domain and 10 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 13 external JavaScript files, 3 CSS stylesheets, and 1 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 (ContactPoint, EntryPoint, ImageObject, Organization, SearchAction, and WebSite).
We detected the following payment methods accepted on cerascreen.de: Visa, Mastercard, American Express, UnionPay, Apple Pay, Shop Pay, and Klarna. 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 (@cerascreenDACH), Instagram (@cerascreen.de), and Youtube (@CerascreenDe). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1Moderne Laboranalyse.Klarheit für deine Gesundheit.
H2 Tags9
H3 Tags10
H4 Tags0
H5 Tags0
H6 Tags1
Internal Links249
External Links10
Assets & Features
JavaScript Files13
JS Minified5/13
CSS Files3
CSS Minified0/3
Iframes1
Images83
Missing Alt17
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Schema.org Types
ContactPointEntryPointImageObjectOrganizationSearchActionWebSite
Payment Methods Detected
💳 Visa💳 Mastercard💳 American Express💳 UnionPay💳 Apple Pay💳 Shop Pay💳 Klarna
Social Media Presence
Facebook: @cerascreenDACHInstagram: @cerascreen.deYoutube: @CerascreenDe
cerascreen.de SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for cerascreen.de is well-optimized at 41 characters: "Teste dich – gesund leben mit cerascreen®". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 140 characters (well-optimized): "Selbsttests für Zuhause (Mangelerscheinung, Allergie & Intoleranz erkennen) ✓ ausgewählte Nahrungsergänzungsmittel ✓ Ges...". 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 canonical url is correctly set to https://www.cerascreen.de/, preventing duplicate content issues, the page language is declared as de, and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Teste dich – gesund leben mit cerascreen®..."), OG description, OG image (social sharing thumbnail), OG type (website). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol.
A Twitter Card of type summary_large_image is configured, which controls how links appear when shared on Twitter/X. The "summary_large_image" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
The site implements Schema.org structured data with the following types: ContactPoint, EntryPoint, ImageObject, Organization, SearchAction, 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.
Google SERP Preview
Teste dich – gesund leben mit cerascreen®
https://cerascreen.de
Selbsttests für Zuhause (Mangelerscheinung, Allergie & Intoleranz erkennen) ✓ ausgewählte Nahrungsergänzungsmittel ✓ Gesundheits-Coachings ✓
Meta Tags
TitleTeste dich – gesund leben mit cerascreen®...
Title Length41 chars
Meta Desc Length140 chars
H1Moderne Laboranalyse.Klarheit für deine Gesundheit.
Languagede
Canonicalhttps://www.cerascreen.de/
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema TypesContactPoint, EntryPoint, ImageObject, Organization, SearchAction, WebSite
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
cerascreen.de
Teste dich – gesund leben mit cerascreen®
Selbsttests für Zuhause (Mangelerscheinung, Allergie & Intoleranz erkennen) ✓ ausgewählte Nahrungsergänzungsmittel ✓ Gesundheits-Coachings ✓