longchangchemical.com

We performed a comprehensive analysis of longchangchemical.com on 2026-07-01. The website returned an HTTP 200 status code with a server response time of 20964ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 712 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by Let's Encrypt (DV type). The connection is encrypted using TLS 1.3 with the TLS_AES_256_GCM_SHA384 cipher suite and ECDSA-SHA384 signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2026-09-18, which is 79 days from now. The security headers analysis reveals a score of 20/100 (poor). The following security headers are properly configured: Content-Security-Policy. However, the site is missing 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 14 technologies across 12 categories powering longchangchemical.com. The detected stack includes WordPress 6.7.5, WooCommerce, React, Bootstrap, Google Analytics 4, Microsoft Clarity, Google Tag Manager, Google Ads, reCAPTCHA v3, Cloudflare, StackPath, Google Fonts, jQuery, and WP Rocket. The primary e-commerce platform is WooCommerce. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, longchangchemical.com receives an overall trust score of 63/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, longchangchemical.com receives a trust score of 63/100, 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 Let's Encrypt with 79 days until expiration, and SPF (Sender Policy Framework) email authentication preventing email spoofing. Areas of concern include: 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 longchangchemical.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 longchangchemical.com and identified 14 distinct technologies across 12 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 (version 6.7.5) — manages the content and page structure for longchangchemical.com. Ecommerce: WooCommerce — powers the online store and shopping functionality for longchangchemical.com. UI Library: React — handles the user interface rendering and component management for longchangchemical.com. CSS Framework: Bootstrap — provides the styling and responsive layout system for longchangchemical.com. Analytics: Google Analytics 4 and Microsoft Clarity — tracks visitor behavior and provides traffic insights for longchangchemical.com. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for longchangchemical.com. Advertising: Google Ads — handles advertising pixel tracking and conversion measurement for longchangchemical.com. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for longchangchemical.com. CDN: Cloudflare and StackPath — accelerates content delivery by caching assets at edge locations worldwide for longchangchemical.com. Fonts: Google Fonts — delivers web fonts for typography for longchangchemical.com. JavaScript Library: jQuery — provides utility functions and DOM manipulation for longchangchemical.com. Performance: WP Rocket — optimizes page loading speed and performance for longchangchemical.com. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-FCZ06LCRYF and Google Tag Manager container GTM-PVBTS56. These IDs can be used to identify other websites operated by the same organization.

longchangchemical.com delivers its homepage in 20964ms (server response time), which is considered slow by industry standards. The total page weight is 712 KB, and we detected 362 resource requests loading assets from 15 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: 8 out of 20 CSS files and 20 out of 26 JavaScript files are minified. Minifying the remaining 18 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 longchangchemical.com produces approximately 0.35g of CO₂, earning a carbon rating of C. This is an average carbon footprint. Optimizing images and reducing unnecessary scripts could further improve this score. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 712 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for longchangchemical.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.

longchangchemical.com resolves to the IPv4 address 194.36.187.123, 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: dns3.hichina.com and dns4.hichina.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 longchangchemical.com is handled by mxhichina.com with 2 MX records configured: mxn.mxhichina.com and mxw.mxhichina.com. 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 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 longchangchemical.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 longchangchemical.com contains 1,098 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 35 H2 headings, 9 H3 headings, 1 H4 headings. The page includes 70 images. 9 images (13%) 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 87% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 140 internal links pointing to other pages on the same domain and 6 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 26 external JavaScript files, 20 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), robots.txt (controls search engine crawling behavior), Schema.org structured data (BreadcrumbList, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, WebPage, and WebSite), and RSS feed for content syndication. We detected the following payment methods accepted on longchangchemical.com: Visa, Mastercard, American Express, Discover, JCB, and Diners Club. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates.

The title tag for longchangchemical.com is too long at 92 characters: "China Chemical Manufacturer and Supplier for UV Materials, Additives and Special...". At 92 characters, the title will likely be truncated in Google search results (recommended: 50-60 characters). Consider shortening it while keeping the most important keywords at the beginning. The meta description is 160 characters (acceptable): "Longchang Chemical supplies UV monomers, photoinitiators, antioxidants, additives and specialty chemicals with formulati...". 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://longchangchemical.com/, preventing duplicate content issues, the page language is declared as en-us, the meta robots directive is set to index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("China Chemical Manufacturer and Supplier for UV Materials, A..."), 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. 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, EntryPoint, ImageObject, ListItem, Organization, PropertyValueSpecification, ReadAction, SearchAction, WebPage, and WebSite. 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.