aucfan.com

🤖 AI Summary

After conducting a thorough safety and legitimacy analysis, aucfan.com receives a trust score of 61/100, 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a none policy, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification. 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 aucfan.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 aucfan.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. CMS: WordPress — manages the content and page structure for aucfan.com. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for aucfan.com. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for aucfan.com. JavaScript Library: jQuery — provides utility functions and DOM manipulation for aucfan.com. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-FRR90S1 and Google Tag Manager container GTM-VVXB. These IDs can be used to identify other websites operated by the same organization.

🤖 AI Summary

aucfan.com delivers its homepage in 2664ms (server response time), which is considered slow by industry standards. The total page weight is 201 KB, and we detected 327 resource requests loading assets from 17 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 4 CSS files and 11 out of 31 JavaScript files are minified. Minifying the remaining 23 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 aucfan.com produces approximately 0.1g 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 201 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for aucfan.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

aucfan.com resolves to the IPv4 address 57.181.61.29, 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 2 A record(s) configured. The domain name system is managed by 4 name servers: ns-1468.awsdns-55.org, ns-1876.awsdns-42.co.uk, ns-246.awsdns-30.com, and ns-538.awsdns-03.net. Having 4 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 aucfan.com is handled by Google Workspace with 5 MX records configured: aspmx.l.google.com, alt1.aspmx.l.google.com, and alt2.aspmx.l.google.com and 2 more. 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 none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. DKIM (DomainKeys Identified Mail) is configured, adding a cryptographic signature to outgoing emails that receiving servers can verify to confirm the email hasn't been tampered with in transit. DNSSEC is not enabled for aucfan.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 6 active subdomains for aucfan.com: api.aucfan.com, help.aucfan.com, mail.aucfan.com, portal.aucfan.com, support.aucfan.com, and www.aucfan.com. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

🤖 AI Summary

The homepage of aucfan.com contains 1,134 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 12 H2 headings, 1 H3 headings, 0 H4 headings. The page includes 81 images. 41 images (51%) 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 49% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 100 internal links pointing to other pages on the same domain and 107 external links pointing to third-party websites. There are 31 external JavaScript files, 4 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). Notable missing features: robots.txt and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 2 platforms: Facebook (@aucfan) and Twitter (@aucfan). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

🤖 AI Summary

The title tag for aucfan.com is well-optimized at 60 characters: "買うときも売るときもオークファン - Yahoo!オークション(旧ヤフオク!)や通販サイトの価格データで適切な相場を検索". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 119 characters (well-optimized): "Yahoo!オークション(旧ヤフオク!)・楽天・amazonそれぞれのオークションやショッピングの商品を比較・検討できる「オークファン」。過去10年間のオークション落札価格・情報を網羅。カンタン出品・落札ツールなど、便利な機能を多数搭載！". 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://aucfan.com/, preventing duplicate content issues, the page language is declared as ja, the meta robots directive is set to noydir,noodp, and a favicon is configured. No Open Graph tags are configured. When someone shares a link to aucfan.com on social media, the platform will have to guess the title, description, and image — often producing unattractive or inaccurate previews. Adding OG tags is essential for social media marketing. The meta keywords tag contains 12 terms including ネットオークション, 相場, 統計, 価格, and 比較. 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 aucfan.com. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. We extracted the following tracking IDs that can be used for cross-referencing: ga4_id: G-FRR90S1, gtm_id: GTM-VVXB.