sigmastudyonline.com

🤖 AI Summary

After conducting a thorough safety and legitimacy analysis, sigmastudyonline.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 sigmastudyonline.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.

🤖 AI Summary

Our technology detection engine scanned sigmastudyonline.com and identified 4 distinct technologies across 4 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. CSS Framework: Tailwind CSS — provides the styling and responsive layout system for sigmastudyonline.com. CDN: Cloudflare — accelerates content delivery by caching assets at edge locations worldwide for sigmastudyonline.com. Icon Set: Font Awesome — provides additional functionality for sigmastudyonline.com. Performance: WP Rocket — optimizes page loading speed and performance for sigmastudyonline.com.

🤖 AI Summary

sigmastudyonline.com delivers its homepage in 22474ms (server response time), which is considered slow by industry standards. The total page weight is 78 KB, and we detected 97 resource requests loading assets from 16 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: 1 out of 1 CSS files and 15 out of 17 JavaScript files are minified. Minifying the remaining 2 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 sigmastudyonline.com produces approximately 0.04g 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 78 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for sigmastudyonline.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.

🤖 AI Summary

sigmastudyonline.com resolves to the IPv4 address 104.21.57.191 and also supports IPv6 (2606:4700:3033::6815:39bf), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured. The domain name system is managed by 2 name servers: buck.ns.cloudflare.com and itzel.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 sigmastudyonline.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 sigmastudyonline.com: www.sigmastudyonline.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

🤖 AI Summary

The homepage of sigmastudyonline.com contains 740 words of visible text content. This is a moderate amount of content. The page is structured with 4 H2 headings, 15 H3 headings, 0 H4 headings. The page includes 31 images. 21 images (68%) 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 32% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 31 internal links pointing to other pages on the same domain and 8 external links pointing to third-party websites. There are 17 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 (AggregateRating, Answer, Article, BreadcrumbList, CollectionPage, EntryPoint, FAQPage, Game, ImageObject, ListItem, Offer, Organization, Person, Question, ReadAction, SearchAction, SoftwareApplication, and WebSite), and AMP (Accelerated Mobile Pages) version. Notable missing features: XML Sitemap. Adding these could improve search engine discoverability and rich result eligibility.

🤖 AI Summary

The title tag for sigmastudyonline.com is well-optimized at 47 characters: "BUAS33 – Seni Tato sebagai Bentuk Ekspresi Diri". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 68 characters (acceptable): "Mengenal tato sebagai media ekspresi diri yang unik dan penuh makna.". 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.inklegendztattoos.com/, preventing duplicate content issues, the meta robots directive is set to index, follow, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("BUAS33 – Seni Tato sebagai Bentuk Ekspresi Diri..."), OG description, OG image (social sharing thumbnail), OG type (product). 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 product is configured, which controls how links appear when shared on Twitter/X. The "product" 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: AggregateRating, Answer, Article, BreadcrumbList, CollectionPage, EntryPoint, FAQPage, Game, ImageObject, ListItem, Offer, Organization, Person, Question, ReadAction, SearchAction, SoftwareApplication, 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 1 terms including BUAS33. 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.

🤖 AI Summary

Related domain discovery works by finding other websites that share the same IP address, Google Tag Manager container ID, Google Analytics property, or advertising pixel IDs with sigmastudyonline.com. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. No tracking IDs were detected on this page that could be used for cross-domain matching.

🤖 AI Summary

This section shows additional intelligence about sigmastudyonline.com including data breach history (via HaveIBeenPwned), web archive history (Wayback Machine), green/eco-friendly hosting status, and mobile app presence in the iOS App Store.