omu.ac.jp

We performed a comprehensive analysis of omu.ac.jp on 2026-06-30. The website returned an HTTP 200 status code with a server response time of 12944ms. The page is served over HTTP/1.1 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 95 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by SECOM Trust Systems CO.,LTD. (DV type). The connection is encrypted using TLS 1.2 with the ECDHE-RSA-AES128-GCM-SHA256 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 6 domain(s) (Subject Alternative Names) and expires on 2026-12-22, which is 175 days from now. The security headers analysis reveals a score of 50/100 (moderate). The following security headers are properly configured: Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options. However, the site is missing Strict-Transport-Security (HSTS), 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 4 technologies across 4 categories powering omu.ac.jp. The detected stack includes Google Analytics 4, Google Tag Manager, jQuery, and Font Awesome. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, omu.ac.jp receives an overall trust score of 71/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, omu.ac.jp receives a trust score of 71/100, 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, a valid SSL certificate issued by SECOM Trust Systems CO.,LTD. with 175 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DMARC email authentication with a quarantine policy. Areas of concern include: 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 omu.ac.jp 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.

Our technology detection engine scanned omu.ac.jp 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. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for omu.ac.jp. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for omu.ac.jp. JavaScript Library: jQuery — provides utility functions and DOM manipulation for omu.ac.jp. Icon Set: Font Awesome — provides additional functionality for omu.ac.jp. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-5756VLRSV6 and Google Tag Manager container GTM-MG7M58S. These IDs can be used to identify other websites operated by the same organization.

omu.ac.jp delivers its homepage in 12944ms (server response time), which is considered slow by industry standards. The total page weight is 95 KB, and we detected 361 resource requests loading assets from 7 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 omu.ac.jp. 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: 2 out of 5 CSS files and 4 out of 8 JavaScript files are minified. Minifying the remaining 7 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. From an environmental perspective, each page view of omu.ac.jp produces approximately 0.05g 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 95 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for omu.ac.jp. 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.

omu.ac.jp resolves to the IPv4 address 163.226.193.31, 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 3 name servers: dns-x.sinet.ad.jp, ns1.omu.ac.jp, and ns2.omu.ac.jp. Having 3 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 omu.ac.jp is handled by ac.jp with 3 MX records configured: mgw1.omu.ac.jp, mgw2.omu.ac.jp, and mgw3.omu.ac.jp. 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 not enabled for omu.ac.jp. 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 3 active subdomains for omu.ac.jp: app.omu.ac.jp, mail.omu.ac.jp, and www.omu.ac.jp. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

The homepage of omu.ac.jp contains 424 words of visible text content. This is a moderate amount of content. The page is structured with 7 H2 headings, 0 H3 headings, 0 H4 headings. The page includes 75 images. 21 images (28%) 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 72% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 253 internal links pointing to other pages on the same domain and 23 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 8 external JavaScript files, 5 CSS stylesheets, and 1 iframes on the page. The site implements the following web standards and features: Schema.org structured data (BreadcrumbList, EducationalOrganization, and ListItem). Notable missing features: XML Sitemap and robots.txt. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on omu.ac.jp: 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 2 platforms: Twitter (@OsakaMetUniv) and Instagram (@osakametuniv). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for omu.ac.jp is good at 6 characters: "大阪公立大学". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 61 characters (acceptable): "大阪公立大学の公式Webサイト。2022年4月に大阪市立大学と大阪府立大学が統合し開学した国内最大規模の公立総合大学です。". 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 ja and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("大阪公立大学..."), OG description, OG image (social sharing thumbnail), OG type (article). 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: BreadcrumbList, EducationalOrganization, and ListItem. 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.