brainstellar.com

HTTPS HTTP/2 Gzip Gatsby Crawled in 71,075ms · June 27, 2026 15:58 UTC

brainstellar.com Website Overview & Technology Report

🤖 AI Summary
We performed a comprehensive analysis of brainstellar.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 10824ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 166 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 0/100 (poor). No security headers are configured, which is a significant security concern. However, the site is missing Content-Security-Policy, 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. Our technology detection scan identified 3 technologies across 3 categories powering brainstellar.com. The detected stack includes Gatsby, React, and Webpack. The site uses Gatsby as its primary framework. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, brainstellar.com receives an overall trust score of 66/100, classified as "Likely Safe". The domain has been registered for 11.9 years, which is a strong positive indicator of legitimacy and stability.
66
/ 100
Trust Score
0
/ 100
Security Headers
HTTP Response
Status200 OK
Response Time10824ms
ProtocolHTTP/2
Page Size166 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests139
3rd Party Domains3
Redirect1 hop(s)
Detected Technologies (3)
🔧 Gatsby ⚛️ React 🔨 Webpack
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
Not set
Permissions-Policy
Not set
SSL Certificate
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=brainstellar.com
Type
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm
Issued
Expires— (? days)
SANs

brainstellar.com Trust Score & Safety Analysis

🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, brainstellar.com receives a trust score of 66/100, 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, and a well-established domain registered for over 11.9 years, indicating long-term commitment and legitimacy. 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), missing Referrer-Policy, potentially leaking URL information to third parties, 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 brainstellar.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. The domain is registered through Cloudflare, Inc., with a registration date of 2014-08-03 and expiration date of 2026-08-03.
66
/ 100
Likely Safe
Trust Signals
Valid HTTPS
SPF configured
⚠️ DNSSEC not enabled
Domain age: 11.9 years
Sitemap.xml found
Robots.txt found
⚠️ Missing Content-Security-Policy
⚠️ 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

brainstellar.com Technology Stack & Detected Technologies

🤖 AI Summary
Our technology detection engine scanned brainstellar.com and identified 3 distinct technologies across 3 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. Framework: Gatsby — provides the application framework and routing for brainstellar.com. UI Library: React — handles the user interface rendering and component management for brainstellar.com. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for brainstellar.com.
Framework
🔧 Gatsby(95%)
UI Library
⚛️ React(95%)
Build Tool
🔨 Webpack(95%)

brainstellar.com Performance, Speed & Core Web Vitals

🤖 AI Summary
brainstellar.com delivers its homepage in 10824ms (server response time), which is considered slow by industry standards. The total page weight is 166 KB, and we detected 139 resource requests loading assets from 3 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 3 JavaScript files are minified. Minifying the remaining 3 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 brainstellar.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 166 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for brainstellar.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 Size166 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests139
3rd Party Domains3
CSS Minified0/0
JS Minified0/3

brainstellar.com DNS Records, Email Authentication & Domain Registration

🤖 AI Summary
brainstellar.com resolves to the IPv4 address 172.67.196.50 and also supports IPv6 (2606:4700:3032::ac43:c432), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured. The domain name system is managed by 2 name servers: anuj.ns.cloudflare.com and mary.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 brainstellar.com is handled by mailgun.org with 2 MX records configured: mxa.mailgun.org and mxb.mailgun.org. 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 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 brainstellar.com. 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. The domain is registered through Cloudflare, Inc.. It was first registered on 2014-08-03 and is set to expire on 2026-08-03, making it 11.9 years old. The registrar abuse contact email is registrar-abuse@cloudflare.com. Our subdomain enumeration scan discovered 1 active subdomains for brainstellar.com: www.brainstellar.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
172.67.196.50
104.21.49.242
AAAA
2606:4700:3032::ac43:c432
NS
anuj.ns.cloudflare.com
mary.ns.cloudflare.com
MX
mxa.mailgun.org
mxb.mailgun.org
Email & Authentication
SPF
DMARC p=—
DKIM
DNSSEC
MX Providermailgun.org
RegistrarCloudflare, Inc.
Organisation
Country
Contactregistrar-abuse@cloudflare.com
Registered2014-08-03
Expires2026-08-03
Domain Age11.9 years
IPv6 SupportYes ✓
Subdomains (1 found)
www.brainstellar.com

brainstellar.com Page Content, Images & Accessibility

🤖 AI Summary
The homepage of brainstellar.com contains 445 words of visible text content. This is a moderate amount of content. The page is structured with 2 H2 headings, 2 H3 headings, 0 H4 headings. The page includes 9 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 113 internal links pointing to other pages on the same domain and 3 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 3 external JavaScript files, 0 CSS stylesheets, and 0 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 Progressive Web App (PWA) manifest (enabling app-like installation). Notable missing features: Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on brainstellar.com: Visa and JCB. 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 2 platforms: Facebook (@BrainStellarPuzzles) and Github (@varun-seth). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
445
Words
9
Images
100%
Alt Text Score
166
Page Size (KB)
Content Structure
H1
H2 Tags2
H3 Tags2
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links113
External Links3
Assets & Features
JavaScript Files3
JS Minified0/3
CSS Files0
CSS Minified0/0
Iframes0
Images9
Missing Alt0
SitemapYes ✓
Robots.txtYes ✓
PWAYes ✓
AMPNo
RSS FeedNo
Payment Methods Detected
💳 Visa💳 JCB
Social Media Presence
Facebook: @BrainStellarPuzzlesGithub: @varun-seth

brainstellar.com SEO Analysis, Meta Tags & Open Graph

🤖 AI Summary
The title tag for brainstellar.com is well-optimized at 42 characters: "Brainstellar Puzzles from Quant Interviews". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 29 characters (acceptable): "Puzzles from Quant Interviews". 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 page language is declared as en and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Home..."), 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 is configured, which controls how links appear when shared on Twitter/X. The "summary" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
Google SERP Preview
Brainstellar Puzzles from Quant Interviews
https://brainstellar.com
Puzzles from Quant Interviews
Meta Tags
TitleBrainstellar Puzzles from Quant Interviews...
Title Length42 chars
Meta Desc Length29 chars
H1
Languageen
Canonical
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary
FaviconSet ✓
Open Graph Preview
brainstellar.com
Home
Puzzles from Quant Interviews