nuhs.edu.sg

We performed a comprehensive analysis of nuhs.edu.sg on 2026-07-01. The website returned an HTTP 200 status code with a server response time of 12685ms. The page is served over HTTP/2 protocol, however no compression (Gzip or Brotli) is enabled, which means the page is transferred at its full uncompressed size. The total page weight is 92 KB, and the site is served behind a CDN (Content Delivery Network). The website uses a secure HTTPS connection with a valid SSL certificate issued by GlobalSign nv-sa (OV type). The connection is encrypted using TLS 1.3 with the TLS_AES_256_GCM_SHA384 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2027-01-05, which is 188 days from now. The security headers analysis reveals a score of 100/100 (excellent). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. All recommended security headers are in place, providing comprehensive protection against common web attacks. Our technology detection scan identified 5 technologies across 5 categories powering nuhs.edu.sg. The detected stack includes Bootstrap, Google Analytics 4, Google Tag Manager, Meta Pixel, and jQuery. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, nuhs.edu.sg receives an overall trust score of 82/100, classified as "Very Likely Safe".

After conducting a thorough safety and legitimacy analysis, nuhs.edu.sg receives a trust score of 82/100, which places it in the "Very 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, a valid SSL certificate issued by GlobalSign nv-sa with 188 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a quarantine policy, DNSSEC providing authenticated DNS responses, and a well-established domain registered for over 18.3 years, indicating long-term commitment and legitimacy. 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 nuhs.edu.sg 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 Singnet Pte Ltd based in CA, with a registration date of 2008-03-12 and expiration date of 2028-03-12.

Our technology detection engine scanned nuhs.edu.sg 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. CSS Framework: Bootstrap — provides the styling and responsive layout system for nuhs.edu.sg. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for nuhs.edu.sg. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for nuhs.edu.sg. Advertising: Meta Pixel — handles advertising pixel tracking and conversion measurement for nuhs.edu.sg. JavaScript Library: jQuery — provides utility functions and DOM manipulation for nuhs.edu.sg. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-N1TQ5W5CLL and Google Tag Manager container GTM-KNT68RG9. These IDs can be used to identify other websites operated by the same organization.

nuhs.edu.sg delivers its homepage in 12685ms (server response time), which is considered slow by industry standards. The total page weight is 92 KB, and we detected 329 resource requests loading assets from 34 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. No compression is currently enabled on nuhs.edu.sg. Enabling Brotli or Gzip compression could reduce page size by 60-80% for text-based assets (HTML, CSS, JavaScript), significantly improving load times and reducing bandwidth costs. This is one of the simplest and most impactful performance optimizations available. Asset minification status: 3 out of 4 CSS files and 4 out of 13 JavaScript files are minified. Minifying the remaining 10 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 nuhs.edu.sg 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 92 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for nuhs.edu.sg. 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.

nuhs.edu.sg resolves to the IPv4 address 104.16.212.134, but does not support IPv6. IPv6 adoption is increasingly important as IPv4 address space becomes exhausted, and some ISPs and regions are transitioning to IPv6-only connectivity. The domain has 1 A record(s) configured. The domain name system is managed by 2 name servers: bart.ns.cloudflare.com and teresa.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 nuhs.edu.sg is handled by hmail.sg with 2 MX records configured: mail11.hmail.sg and mail21.hmail.sg. 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 quarantine policy — a moderate setting, directing unauthorized emails to spam/junk folders. DKIM was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is enabled for nuhs.edu.sg, 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. The domain is registered through Singnet Pte Ltd (CA). It was first registered on 2008-03-12 and is set to expire on 2028-03-12, making it 18.3 years old. Our subdomain enumeration scan discovered 1 active subdomains for nuhs.edu.sg: www.nuhs.edu.sg. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

The homepage of nuhs.edu.sg contains 1,460 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 10 H2 headings, 7 H3 headings, 0 H4 headings. The page includes 54 images. 1 images (2%) 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 98% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 202 internal links pointing to other pages on the same domain and 51 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 13 external JavaScript files, 4 CSS stylesheets, and 1 iframes on the page. The site implements the following web standards and features: robots.txt (controls search engine crawling behavior) and Schema.org structured data (Organization). Notable missing features: XML Sitemap. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on nuhs.edu.sg: 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 4 platforms: Facebook (@NationalUniversityHealthSystem), Instagram (@nuhsofficial), Linkedin (@national-university-health-system), and Tiktok (@nuhsofficial). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for nuhs.edu.sg is good at 70 characters: "National University Health System | Singapore's Academic Health System". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 164 characters (slightly long): "The National University Health System (NUHS) is an integrated Academic Health System in Singapore that delivers value-dr...". 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.nuhs.edu.sg, preventing duplicate content issues and the page language is declared as en. Open Graph meta tags are configured with 3/4 recommended fields: OG title ("National University Health System | Singapore's Academic Hea..."), OG description, 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. 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.