classmarker.com Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of classmarker.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 14223ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 154 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 85/100 (good). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, and Referrer-Policy. However, the site is missing 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 classmarker.com. The detected stack includes Webpack, Google Tag Manager, New Relic, YouTube Embed, and jQuery 3.6.0..
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, classmarker.com receives an overall trust score of 79/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time14223ms
ProtocolHTTP/2
Page Size154 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests158
3rd Party Domains5
Redirect1 hop(s)
Detected Technologies (5)
🔨 Webpack
🏷️ Google Tag Manager
📡 New Relic
🎬 YouTube Embed
📦 jQuery
Security Headers
✓
Content-Security-Policy
Set ✓
✓
Strict-Transport-Security (HSTS)
Set ✓
✓
X-Content-Type-Options
Set ✓
✗
Permissions-Policy
Not set
SSL Certificate
IssuerGlobalSign nv-sa
Issuer FullcountryName=BE, organizationName=GlobalSign nv-sa, commonName=GlobalSign GCC R3 DV TLS CA 2020
SubjectcommonName=*.classmarker.com
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
classmarker.com Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, classmarker.com receives a trust score of 79/100, 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, DKIM (DomainKeys Identified Mail) providing cryptographic email verification, and DNSSEC providing authenticated DNS responses.
Areas of concern include: 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 classmarker.com 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=reject)
✅ DKIM configured
✅ DNSSEC enabled
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
classmarker.com Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned classmarker.com 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.
Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for classmarker.com.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for classmarker.com.
Monitoring: New Relic — monitors application performance and errors for classmarker.com.
Video: YouTube Embed — provides video hosting and playback for classmarker.com.
JavaScript Library: jQuery (version 3.6.0.) — provides utility functions and DOM manipulation for classmarker.com.
We also extracted the following tracking identifiers: Google Tag Manager container GTM-5DGG58D. These IDs can be used to identify other websites operated by the same organization.
Build Tool
Tag Manager
🏷️ Google Tag Manager(95%)
Monitoring
Video
JavaScript Library
Tracking IDs
classmarker.com Performance, Speed & Core Web Vitals
🤖 AI Summary
classmarker.com delivers its homepage in 14223ms (server response time), which is considered slow by industry standards. The total page weight is 154 KB, and we detected 158 resource requests loading assets from 5 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 2 CSS files and 1 out of 5 JavaScript files are minified. Minifying the remaining 6 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 classmarker.com produces approximately 0.08g 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 154 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for classmarker.com. 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 view0.08g
RatingA
Page Weight & Optimization
HTML Size154 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests158
3rd Party Domains5
CSS Minified0/2
JS Minified1/5
classmarker.com DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
classmarker.com resolves to the IPv4 address 172.66.151.20 and also supports IPv6 (2606:4700:10::ac42:9714), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: gwen.ns.cloudflare.com and kevin.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 classmarker.com is handled by Google Workspace with 1 MX records configured: smtp.google.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 (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 enabled for classmarker.com, 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 4 active subdomains for classmarker.com: api.classmarker.com, ftp.classmarker.com, mail.classmarker.com, and www.classmarker.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
172.66.151.20
104.20.19.11
NS
gwen.ns.cloudflare.com
kevin.ns.cloudflare.com
Email & Authentication
MX ProviderGoogle Workspace
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (4 found)
api.classmarker.com ftp.classmarker.com mail.classmarker.com www.classmarker.com
classmarker.com Page Content, Images & Accessibility
🤖 AI Summary
The homepage of classmarker.com contains 956 words of visible text content. This is a moderate amount of content. The page is structured with 17 H2 headings, 9 H3 headings, 0 H4 headings.
The page includes 52 images. 3 images (6%) 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 94% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 89 internal links pointing to other pages on the same domain and 4 external links pointing to third-party websites. There are 5 external JavaScript files, 2 CSS stylesheets, and 4 iframes on the page.
The site implements the following web standards and features: Schema.org structured data (Organization).
Notable missing features: XML Sitemap and robots.txt. Adding these could improve search engine discoverability and rich result eligibility.
We detected the following payment methods accepted on classmarker.com: Discover. 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 5 platforms: Facebook (@ClassMarker), Twitter (@ClassMarker), Instagram (@classmarker), Linkedin (@classmarker-pty-ltd), and Github (@newrelic). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1The Best Exam Maker for Business & Training
H2 Tags17
H3 Tags9
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links89
External Links4
Assets & Features
JavaScript Files5
JS Minified1/5
CSS Files2
CSS Minified0/2
Iframes4
Images52
Missing Alt3
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
Schema.org Types
Payment Methods Detected
Social Media Presence
Facebook: @ClassMarkerTwitter: @ClassMarkerInstagram: @classmarkerLinkedin: @classmarker-pty-ltdGithub: @newrelic
classmarker.com SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for classmarker.com is well-optimized at 56 characters: "The Professional Online Exam Maker - Create Online Tests". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 193 characters (slightly long): "The ClassMarker online testing website, is a professional, easy to use, online quiz maker that marks your tests and quiz...". 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.classmarker.com/, preventing duplicate content issues, the page language is declared as en, and a favicon is configured.
Open Graph meta tags are configured with 4/4 recommended fields: OG title ("The Professional Online Exam Maker - Create Online Tests..."), 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: Organization. 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.
The meta keywords tag contains 18 terms including Online testing, Create online quizzes, quiz maker, web based tests, and online quiz maker. Note: Google has officially confirmed that it does not use the meta keywords tag as a ranking signal. However, some other search engines (Bing, Yandex) may still reference it.
Google SERP Preview
The Professional Online Exam Maker - Create Online Tests
https://classmarker.com
The ClassMarker online testing website, is a professional, easy to use, online quiz maker that marks your tests and quizzes for you. Create professional online exams for business and education.
Meta Tags
TitleThe Professional Online Exam Maker - Create Online Tests...
Title Length56 chars
Meta Desc Length193 chars
H1The Best Exam Maker for Business & Training
Languageen
Canonicalhttps://www.classmarker.com/
Meta Robotsnot set
Meta KeywordsOnline testing, Create online quizzes, quiz maker, web based...
Schema.org & Social
Schema TypesOrganization
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
classmarker.com
The Professional Online Exam Maker - Create Online Tests
The ClassMarker online testing website, is a professional, easy to use, online quiz maker that marks your tests and quizzes for you. Create professional online