matrixcalc.org Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of matrixcalc.org on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 12237ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 47 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 20/100 (poor). The following security headers are properly configured: Content-Security-Policy. However, the site is missing Strict-Transport-Security (HSTS), 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.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, matrixcalc.org receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time12237ms
ProtocolHTTP/2
Page Size47 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests92
3rd Party Domains11
RedirectNone
Detected Technologies (0)
Security Headers
✓
Content-Security-Policy
Set ✓
✗
Strict-Transport-Security (HSTS)
Not set
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=matrixcalc.org
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
matrixcalc.org Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, matrixcalc.org 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: 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, 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 matrixcalc.org 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 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
matrixcalc.org Technology Stack & Detected Technologies
🤖 AI Summary
Our automated technology detection scan was unable to identify specific technologies on matrixcalc.org. This could indicate that the site uses server-side rendering without client-side technology fingerprints, employs aggressive code obfuscation, or uses custom-built solutions that don't match known technology signatures.
matrixcalc.org Performance, Speed & Core Web Vitals
🤖 AI Summary
matrixcalc.org delivers its homepage in 12237ms (server response time), which is considered slow by industry standards. The total page weight is 47 KB, and we detected 92 resource requests loading assets from 11 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 0 CSS files and 0 out of 1 JavaScript files are minified. Minifying the remaining 1 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 matrixcalc.org produces approximately 0.02g 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 47 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for matrixcalc.org. 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 view0.02g
RatingA
Page Weight & Optimization
HTML Size47 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests92
3rd Party Domains11
CSS Minified0/0
JS Minified0/1
matrixcalc.org DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
matrixcalc.org resolves to the IPv4 address 104.21.73.94 and also supports IPv6 (2606:4700:3035::ac43:bd59), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: khloe.ns.cloudflare.com and rick.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.
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 matrixcalc.org. 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 1 active subdomains for matrixcalc.org: www.matrixcalc.org. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
104.21.73.94
172.67.189.89
AAAA
2606:4700:3035::ac43:bd59
NS
khloe.ns.cloudflare.com
rick.ns.cloudflare.com
Email & Authentication
MX Provider—
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (1 found)
matrixcalc.org Page Content, Images & Accessibility
🤖 AI Summary
The homepage of matrixcalc.org contains 495 words of visible text content. This is a moderate amount of content. The page is structured with 0 H2 headings, 0 H3 headings, 0 H4 headings.
The page includes 1 image. 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 40 internal links pointing to other pages on the same domain and 14 external links pointing to third-party websites. There are 1 external JavaScript files, 0 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 (LearningResource, MathSolver, and SolveMathAction), and Progressive Web App (PWA) manifest (enabling app-like installation).
Notable missing features: XML Sitemap. Adding these could improve search engine discoverability and rich result eligibility.
Content Structure
H1—
H2 Tags0
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links40
External Links14
Assets & Features
JavaScript Files1
JS Minified0/1
CSS Files0
CSS Minified0/0
Iframes0
Images1
Missing Alt0
SitemapNo
Robots.txtYes ✓
PWAYes ✓
AMPNo
RSS FeedNo
Schema.org Types
LearningResourceMathSolverSolveMathAction
matrixcalc.org SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for matrixcalc.org is good at 17 characters: "Matrix calculator". The length is acceptable, though it may be slightly truncated in some search result displays.
The meta description is 277 characters (slightly long): "Matrix addition, multiplication, inversion, determinant and rank calculation, transposing, bringing to diagonal, row ech...". 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://matrixcalc.org/, preventing duplicate content issues, the page language is declared as en, and a favicon is configured.
No Open Graph tags are configured. When someone shares a link to matrixcalc.org 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.
The site implements Schema.org structured data with the following types: LearningResource, MathSolver, and SolveMathAction. 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
Matrix calculator
https://matrixcalc.org
Matrix addition, multiplication, inversion, determinant and rank calculation, transposing, bringing to diagonal, row echelon form, exponentiation, LU Decomposition, QR-decomposition, Singular Value Decomposition (SVD), solving of systems of linear equations with solution steps
Meta Tags
TitleMatrix calculator...
Title Length17 chars
Meta Desc Length277 chars
H1—
Languageen
Canonicalhttps://matrixcalc.org/
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema TypesLearningResource, MathSolver, SolveMathAction
OG Type—
OG ImageNot set
Twitter Card—
FaviconSet ✓