3rvietnam.com.vn

We performed a comprehensive analysis of 3rvietnam.com.vn on 2026-06-28. The website returned an HTTP 200 status code with a server response time of 15837ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 119 KB. Warning: The website does not have a valid SSL certificate. Visitors may see security warnings in their browser, and data transmitted to and from this website is not encrypted. The security headers analysis reveals a score of 55/100 (moderate). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), and X-Content-Type-Options. However, the site is missing X-Frame-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 5 technologies across 5 categories powering 3rvietnam.com.vn. The detected stack includes Bootstrap, Meta Pixel, Google Fonts, jQuery 1.11.3., and Font Awesome. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, 3rvietnam.com.vn receives an overall trust score of 65/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, 3rvietnam.com.vn receives a trust score of 65/100, 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, 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 3rvietnam.com.vn 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 3rvietnam.com.vn and identified 5 distinct technologies across 5 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. CSS Framework: Bootstrap — provides the styling and responsive layout system for 3rvietnam.com.vn. Advertising: Meta Pixel — handles advertising pixel tracking and conversion measurement for 3rvietnam.com.vn. Fonts: Google Fonts — delivers web fonts for typography for 3rvietnam.com.vn. JavaScript Library: jQuery (version 1.11.3.) — provides utility functions and DOM manipulation for 3rvietnam.com.vn. Icon Set: Font Awesome — provides additional functionality for 3rvietnam.com.vn.

3rvietnam.com.vn delivers its homepage in 15837ms (server response time), which is considered slow by industry standards. The total page weight is 119 KB, and we detected 407 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. 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: 5 out of 19 CSS files and 9 out of 18 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 3rvietnam.com.vn produces approximately 0.06g 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 119 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 3rvietnam.com.vn. 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.

3rvietnam.com.vn resolves to the IPv4 address 210.245.8.140, 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: ns.viettelidc.com.vn, ns1.viettelidc.com.vn, and ns2.viettelidc.com.vn. 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 3rvietnam.com.vn is handled by com.vn with 1 MX records configured: mx.viettelidc.com.vn. 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 3rvietnam.com.vn. 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 2 active subdomains for 3rvietnam.com.vn: mail.3rvietnam.com.vn and webmail.3rvietnam.com.vn. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

The homepage of 3rvietnam.com.vn contains 1,262 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 8 H2 headings, 56 H3 headings, 0 H4 headings. The page includes 76 images. All images have proper alt text attributes ✓, which is excellent for both accessibility (screen readers) and SEO (search engines can understand image content). The link structure consists of 291 internal links pointing to other pages on the same domain and 2 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 18 external JavaScript files, 19 CSS stylesheets, and 0 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. We detected the following payment methods accepted on 3rvietnam.com.vn: 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 1 platforms: Facebook (@congtyDKT). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for 3rvietnam.com.vn is well-optimized at 33 characters: "CÔNG TY TNHH TM VÀ DV 3R VIỆT NAM". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 168 characters (slightly long): "CÔNG TY TNHH THƯƠNG MẠI VÀ DỊCH VỤ 3R VIỆT NAM Địa chỉ: Phòng 12-06, Tòa G3, Vinhomes Green Bay, Số 7 Đại Lộ Thăng Long,...". 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://3rvietnam.com.vn/, preventing duplicate content issues, the page language is declared as vi, the meta robots directive is set to noodp,index,follow, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("CÔNG TY TNHH TM VÀ DV 3R VIỆT NAM..."), 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 6 terms including 3R Việt Nam, tổ chức hội thảo, tổ chức sự kiện, du lịch việt nam, and kinh nghiệm du lịch. 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.