adac.theorie24.de Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of adac.theorie24.de on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 28136ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 212 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 9 technologies across 9 categories powering adac.theorie24.de. The detected stack includes WordPress 6.9.4, Google Analytics 4, Google Tag Manager, Google AdSense, reCAPTCHA v3, Cloudflare, Google Fonts, jQuery, and Font Awesome.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, adac.theorie24.de receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time28136ms
ProtocolHTTP/2
Page Size212 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerApache
Total Requests280
3rd Party Domains9
Redirect2 hop(s)
Detected Technologies (9)
• WordPress
📊 Google Analytics 4
🏷️ Google Tag Manager
📢 Google AdSense
🔒 reCAPTCHA v3
☁️ Cloudflare
🔤 Google Fonts
📦 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
✗
Permissions-Policy
Not set
SSL Certificate
IssuerDigiCert Inc
Issuer FullcountryName=US, organizationName=DigiCert Inc, organizationalUnitName=www.digicert.com, commonName=Encryption Everywhere DV TLS CA - G2
SubjectcommonName=adac.theorie24.de
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
adac.theorie24.de Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, adac.theorie24.de 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), 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 adac.theorie24.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
⚠️ DNSSEC not enabled
✅ Robots.txt found
⚠️ 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
adac.theorie24.de Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned adac.theorie24.de and identified 9 distinct technologies across 9 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
CMS: WordPress (version 6.9.4) — manages the content and page structure for adac.theorie24.de.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for adac.theorie24.de.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for adac.theorie24.de.
Advertising: Google AdSense — handles advertising pixel tracking and conversion measurement for adac.theorie24.de.
Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for adac.theorie24.de.
CDN: Cloudflare — accelerates content delivery by caching assets at edge locations worldwide for adac.theorie24.de.
Fonts: Google Fonts — delivers web fonts for typography for adac.theorie24.de.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for adac.theorie24.de.
Icon Set: Font Awesome — provides additional functionality for adac.theorie24.de.
We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-GM6RKVGR28. These IDs can be used to identify other websites operated by the same organization.
CMS
Analytics
📊 Google Analytics 4(95%)
Tag Manager
🏷️ Google Tag Manager(95%)
Advertising
Security
CDN
Fonts
JavaScript Library
Icon Set
Tracking IDs
adac.theorie24.de Performance, Speed & Core Web Vitals
🤖 AI Summary
adac.theorie24.de delivers its homepage in 28136ms (server response time), which is considered slow by industry standards. The total page weight is 212 KB, and we detected 280 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: 0 out of 1 CSS files and 2 out of 26 JavaScript files are minified. Minifying the remaining 25 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 adac.theorie24.de produces approximately 0.1g 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 212 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for adac.theorie24.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 view0.1g
RatingA
Page Weight & Optimization
HTML Size212 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests280
3rd Party Domains9
CSS Minified0/1
JS Minified2/26
adac.theorie24.de DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
adac.theorie24.de resolves to the IPv4 address 78.46.220.208 and also supports IPv6 (2a01:4f8:d0a:41f3::2), demonstrating modern network infrastructure readiness. The domain has 1 A record(s) configured.
Email for adac.theorie24.de is handled by your-server.de with 1 MX records configured: dedi2798.your-server.de. 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 not enabled for adac.theorie24.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.
Email & Authentication
MX Provideryour-server.de
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
adac.theorie24.de Page Content, Images & Accessibility
🤖 AI Summary
The homepage of adac.theorie24.de contains 828 words of visible text content. This is a moderate amount of content. The page is structured with 6 H2 headings, 4 H3 headings, 3 H4 headings.
The page includes 73 images. 70 images (96%) 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 4% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 118 internal links pointing to other pages on the same domain and 29 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 26 external JavaScript files, 1 CSS stylesheets, and 0 iframes on the page.
The site implements the following web standards and features: robots.txt (controls search engine crawling behavior), Schema.org structured data (BreadcrumbList, EntryPoint, ImageObject, ListItem, PropertyValueSpecification, ReadAction, SearchAction, WebPage, and WebSite), and RSS feed for content syndication.
Notable missing features: XML Sitemap. Adding these could improve search engine discoverability and rich result eligibility.
Content Structure
H1WARUM IST THEORIE24FÜHRERSCHEIN APP DIE BESTE VORBEREITUNG?
H2 Tags6
H3 Tags4
H4 Tags3
H5 Tags0
H6 Tags0
Internal Links118
External Links29
Assets & Features
JavaScript Files26
JS Minified2/26
CSS Files1
CSS Minified0/1
Iframes0
Images73
Missing Alt70
SitemapNo
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedYes ✓
Schema.org Types
BreadcrumbListEntryPointImageObjectListItemPropertyValueSpecificationReadActionSearchActionWebPageWebSite
adac.theorie24.de SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for adac.theorie24.de is well-optimized at 45 characters: "Startseite - Die Führerschein App | THEORIE24". 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): "Die Theorie24 Führerschein App ist die perfekte Vorbereitung für die Theorieprüfung. Alle Fragen - Alle Videos - Alle Bi...". 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.theorie24.de/, preventing duplicate content issues, the page language is declared as de, the meta robots directive is set to index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1, and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Startseite - Die Führerschein App | THEORIE24..."), 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: BreadcrumbList, EntryPoint, ImageObject, ListItem, PropertyValueSpecification, ReadAction, SearchAction, WebPage, 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
Startseite - Die Führerschein App | THEORIE24
https://adac.theorie24.de
Die Theorie24 Führerschein App ist die perfekte Vorbereitung für die Theorieprüfung. Alle Fragen - Alle Videos - Alle Bilder - Alle Klasse !
Meta Tags
TitleStartseite - Die Führerschein App | THEORIE24...
Title Length45 chars
Meta Desc Length140 chars
H1WARUM IST THEORIE24FÜHRERSCHEIN APP DIE BESTE VORBEREITUNG?
Languagede
Canonicalhttps://www.theorie24.de/
Meta Robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Meta Keywordsnot set
Schema.org & Social
Schema TypesBreadcrumbList, EntryPoint, ImageObject, ListItem, PropertyValueSpecification, ReadAction, SearchAction, WebPage, WebSite
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
adac.theorie24.de
Startseite - Die Führerschein App | THEORIE24
Die Theorie24 Führerschein App ist die perfekte Vorbereitung für die Theorieprüfung. Alle Fragen - Alle Videos - Alle Bilder - Alle Klasse !