a40a.com Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of a40a.com on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 4288ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 38 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 2 technologies across 2 categories powering a40a.com. The detected stack includes React and Google Analytics 4. The UI is built with React.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, a40a.com receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time4288ms
ProtocolHTTP/2
Page Size38 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests38
3rd Party Domains1
RedirectNone
Detected Technologies (2)
⚛️ React
📊 Google Analytics 4
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=a40a.com
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
a40a.com Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, a40a.com 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), 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 a40a.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
⚠️ DNSSEC not enabled
✅ 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
a40a.com Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned a40a.com and identified 2 distinct technologies across 2 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
UI Library: React — handles the user interface rendering and component management for a40a.com.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for a40a.com.
We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-WEJ6BM79RW. These IDs can be used to identify other websites operated by the same organization.
UI Library
Analytics
📊 Google Analytics 4(95%)
Tracking IDs
a40a.com Performance, Speed & Core Web Vitals
🤖 AI Summary
a40a.com delivers its homepage in 4288ms (server response time), which is considered slow by industry standards. The total page weight is 38 KB, and we detected 38 resource requests loading assets from 1 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 0 out of 2 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 a40a.com 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 38 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for a40a.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 view0.02g
RatingA
Page Weight & Optimization
HTML Size38 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests38
3rd Party Domains1
CSS Minified0/1
JS Minified0/2
a40a.com DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
a40a.com resolves to the IPv4 address 104.21.22.252 and also supports IPv6 (2606:4700:3035::6815:16fc), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: ainsley.ns.cloudflare.com and ezra.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 a40a.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.
Our subdomain enumeration scan discovered 1 active subdomains for a40a.com: www.a40a.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
104.21.22.252
172.67.208.31
AAAA
2606:4700:3035::6815:16fc
NS
ainsley.ns.cloudflare.com
ezra.ns.cloudflare.com
Email & Authentication
MX Provider—
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (1 found)
a40a.com Page Content, Images & Accessibility
🤖 AI Summary
The homepage of a40a.com contains 1,476 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 5 H2 headings, 18 H3 headings, 8 H4 headings.
The page includes 10 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 22 internal links pointing to other pages on the same domain and 0 external links pointing to third-party websites. There are 2 external JavaScript files, 1 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 Schema.org structured data (ImageObject, Organization, and WebSite).
We detected the following payment methods accepted on a40a.com: Visa. 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 (@a40), Twitter (@a40), and Instagram (@a40). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1a40 app | A Plataforma de Cassino Confiável do Brasil
H2 Tags5
H3 Tags18
H4 Tags8
H5 Tags0
H6 Tags0
Internal Links22
External Links0
Assets & Features
JavaScript Files2
JS Minified0/2
CSS Files1
CSS Minified0/1
Iframes0
Images10
Missing Alt0
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Schema.org Types
ImageObjectOrganizationWebSite
Payment Methods Detected
Social Media Presence
Facebook: @a40Twitter: @a40Instagram: @a40
a40a.com SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for a40a.com is well-optimized at 53 characters: "a40 app | A Plataforma de Cassino Confiável do Brasil". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 118 characters (well-optimized): "Descubra a melhor plataforma de jogos online no Brasil, com um app exclusivo e bônus imperdíveis para novos jogadores.". 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://a40a.com/, preventing duplicate content issues, the page language is declared as pt-br, 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 ("a40 app | A Plataforma de Cassino Confiável do Brasil..."), 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: ImageObject, Organization, 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.
The meta keywords tag contains 9 terms including a40 app, apostas online, cassino, jogos, and PIX. 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
a40 app | A Plataforma de Cassino Confiável do Brasil
https://a40a.com
Descubra a melhor plataforma de jogos online no Brasil, com um app exclusivo e bônus imperdíveis para novos jogadores.
Meta Tags
Titlea40 app | A Plataforma de Cassino Confiável do Brasil...
Title Length53 chars
Meta Desc Length118 chars
H1a40 app | A Plataforma de Cassino Confiável do Brasil
Languagept-BR
Canonicalhttps://a40a.com/
Meta Robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Meta Keywordsa40 app, apostas online, cassino, jogos, PIX, Brasil, aposta...
Schema.org & Social
Schema TypesImageObject, Organization, WebSite
OG Typewebsite
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
a40a.com
a40 app | A Plataforma de Cassino Confiável do Brasil
Descubra a melhor plataforma de jogos online no Brasil, com um app exclusivo e bônus imperdíveis para novos jogadores.