cang.com

We performed a comprehensive analysis of cang.com on 2026-06-30. The website returned an HTTP 200 status code with a server response time of 27175ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 882 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by Beijing Xinchacha Credit Management Co., Ltd. (DV type). The connection is encrypted using TLS 1.3 with the TLS_AES_128_GCM_SHA256 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2027-01-26, which is 210 days from now. The security headers analysis reveals a score of 0/100 (poor). No security headers are configured, which is a significant security concern. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, 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 3 technologies across 3 categories powering cang.com. The detected stack includes Next.js KxoCiHbL5CIzqmwbA0ZW6, Webpack, and Google Analytics 4. The site uses Next.js as its primary framework (version KxoCiHbL5CIzqmwbA0ZW6). Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, cang.com receives an overall trust score of 60/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, cang.com receives a trust score of 60/100, 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 and a valid SSL certificate issued by Beijing Xinchacha Credit Management Co., Ltd. with 210 days until expiration. 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 cang.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.

Our technology detection engine scanned cang.com and identified 3 distinct technologies across 3 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. Framework: Next.js (version KxoCiHbL5CIzqmwbA0ZW6) — provides the application framework and routing for cang.com. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for cang.com. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for cang.com. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-TUNG. These IDs can be used to identify other websites operated by the same organization.

cang.com delivers its homepage in 27175ms (server response time), which is considered slow by industry standards. The total page weight is 882 KB, and we detected 962 resource requests loading assets from 6 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 0 out of 6 JavaScript files are minified. Minifying the remaining 9 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 cang.com produces approximately 0.43g of CO₂, earning a carbon rating of D. The website's carbon footprint could be reduced by optimizing images, enabling compression, reducing third-party scripts, and leveraging caching. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 882 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for cang.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.

cang.com resolves to the IPv4 address 43.109.101.9, 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. 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 cang.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.

The homepage of cang.com contains 1,146 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 0 H2 headings, 6 H3 headings, 13 H4 headings, 53 H5, and 8 H6 headings. The page includes 43 images. 27 images (63%) 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 37% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 801 internal links pointing to other pages on the same domain and 13 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 6 external JavaScript files, 4 CSS stylesheets, and 0 iframes on the page. Notable missing features: XML Sitemap, robots.txt, and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.

The title tag for cang.com is well-optimized at 36 characters: "华夏收藏网是一家从事古玩收藏艺术品的在线交易鉴定拍卖一体的多元化收藏网站". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 117 characters (well-optimized): "华夏收藏网是一家从事古玩古董艺术品收藏的在线交易鉴定拍卖一体的多元化收藏网站，18年收藏行业专营，300万用户信任的网站，包含拍卖、直播、鉴定估价、地摊、古玩城等特色栏目，行家云集帮你鉴定估价，全平台承诺7天无理由退货，让您购物无忧。". 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 zh_cn and a favicon is configured. No Open Graph tags are configured. When someone shares a link to cang.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 10 terms including 收藏, 古玩, 古董, 在线拍卖, and 古董鉴定. 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.