daido.co.jp

We performed a comprehensive analysis of daido.co.jp on 2026-07-08. The website returned an HTTP 200 status code with a server response time of 3068ms. 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 75 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by DigiCert Inc (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 2027-01-02, which is 178 days from now. The security headers analysis reveals a score of 85/100 (good). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, and Permissions-Policy. However, the site is missing Referrer-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 6 technologies across 6 categories powering daido.co.jp. The detected stack includes WordPress, Vue.js, Google Analytics 4, Google Tag Manager, Google Fonts, and jQuery 3.7.1.. The UI is built with Vue.js. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, daido.co.jp receives an overall trust score of 77/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, daido.co.jp receives a trust score of 77/100, 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, HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks, a valid SSL certificate issued by DigiCert Inc with 178 days until expiration, and DMARC email authentication with a none 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 daido.co.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 daido.co.jp and identified 6 distinct technologies across 6 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. CMS: WordPress — manages the content and page structure for daido.co.jp. UI Library: Vue.js — handles the user interface rendering and component management for daido.co.jp. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for daido.co.jp. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for daido.co.jp. Fonts: Google Fonts — delivers web fonts for typography for daido.co.jp. JavaScript Library: jQuery (version 3.7.1.) — provides utility functions and DOM manipulation for daido.co.jp. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-Q9F8DTT8DH and Google Tag Manager container GTM-N3JVTZ8. These IDs can be used to identify other websites operated by the same organization.

daido.co.jp delivers its homepage in 3068ms (server response time), which is considered slow by industry standards. The total page weight is 75 KB, and we detected 280 resource requests loading assets from 10 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 daido.co.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: 3 out of 9 CSS files and 8 out of 15 JavaScript files are minified. Minifying the remaining 13 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 daido.co.jp 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 75 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for daido.co.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.

daido.co.jp resolves to the IPv4 address 153.120.92.226, 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 1 name servers: ns.daido.co.jp. Having only one name server creates a single point of failure. The choice of name servers often indicates the DNS hosting provider or CDN service being used. Email for daido.co.jp is handled by pphosted.com with 2 MX records configured: mxa-00a42001.gslb.pphosted.com and mxb-00a42001.gslb.pphosted.com. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server. 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 (Domain-based Message Authentication, Reporting and Conformance) is configured with a none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. 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 daido.co.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.

The homepage of daido.co.jp contains 396 words of visible text content. This is a moderate amount of content. The page is structured with 11 H2 headings, 35 H3 headings, 0 H4 headings. The page includes 43 images. 2 images (5%) 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 95% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 165 internal links pointing to other pages on the same domain and 26 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 15 external JavaScript files, 9 CSS stylesheets, and 1 iframes on the page. The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages) and robots.txt (controls search engine crawling behavior). Notable missing features: Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 3 platforms: Twitter (@daidosteel_pr), Instagram (@daidosteel_official), and Youtube (@daidosteeljp). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for daido.co.jp is good at 5 characters: "大同特殊鋼". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 73 characters (well-optimized): "「モノづくりは、未来づくり」大同特殊鋼のコーポレートサイトです。企業情報、製品情報、株主・投資家情報、社会・環境活動などの情報をご覧いただけます。". 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 ("大同特殊鋼..."), 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. The meta keywords tag contains 5 terms including 大同特殊鋼, 大同, daido steel, 大同製鋼, and 特殊鋼. 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.