caodangytb.edu.vn Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of caodangytb.edu.vn on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 13135ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 122 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 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 1 technologies across 1 categories powering caodangytb.edu.vn. The detected stack includes jQuery.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, caodangytb.edu.vn receives an overall trust score of 53/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time13135ms
ProtocolHTTP/2
Page Size122 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerMicrosoft-IIS/10.0
Total Requests618
3rd Party Domains5
RedirectNone
Detected Technologies (1)
📦 jQuery
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not set
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=YR2
SubjectcommonName=caodangytb.edu.vn
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
caodangytb.edu.vn Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, caodangytb.edu.vn receives a trust score of 53/100, which places it in the "Caution Advised" 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.
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 caodangytb.edu.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.
Trust Signals
✅ Valid HTTPS
⚠️ DNSSEC not enabled
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
⚠️ Missing Referrer-Policy
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
caodangytb.edu.vn Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned caodangytb.edu.vn and identified 1 distinct technologies across 1 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for caodangytb.edu.vn.
JavaScript Library
caodangytb.edu.vn Performance, Speed & Core Web Vitals
🤖 AI Summary
caodangytb.edu.vn delivers its homepage in 13135ms (server response time), which is considered slow by industry standards. The total page weight is 122 KB, and we detected 618 resource requests loading assets from 5 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: 0 out of 11 CSS files and 4 out of 15 JavaScript files are minified. Minifying the remaining 22 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 caodangytb.edu.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 122 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for caodangytb.edu.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.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.06g
RatingA
Page Weight & Optimization
HTML Size122 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests618
3rd Party Domains5
CSS Minified0/11
JS Minified4/15
caodangytb.edu.vn DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
caodangytb.edu.vn resolves to the IPv4 address 117.4.179.121, 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: ns1.dotvndns.vn, ns2.dotvndns.vn, and nsbak.dotvndns.com. 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 caodangytb.edu.vn 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 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 caodangytb.edu.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 3 active subdomains for caodangytb.edu.vn: api.caodangytb.edu.vn, mail.caodangytb.edu.vn, and www.caodangytb.edu.vn. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
ns1.dotvndns.vn
ns2.dotvndns.vn
nsbak.dotvndns.com
MX
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
Email & Authentication
MX ProviderGoogle Workspace
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (3 found)
api.caodangytb.edu.vn mail.caodangytb.edu.vn www.caodangytb.edu.vn
caodangytb.edu.vn Page Content, Images & Accessibility
🤖 AI Summary
The homepage of caodangytb.edu.vn contains 2,847 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 1 H2 headings, 24 H3 headings, 0 H4 headings.
The page includes 52 images. 32 images (62%) 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 38% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 425 internal links pointing to other pages on the same domain and 18 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, 11 CSS stylesheets, and 0 iframes on the page.
The site implements the following web standards and features: RSS feed for content syndication.
Notable missing features: XML Sitemap, 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 1 platforms: Facebook (@congdongcye). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1—
H2 Tags1
H3 Tags24
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links425
External Links18
Assets & Features
JavaScript Files15
JS Minified4/15
CSS Files11
CSS Minified0/11
Iframes0
Images52
Missing Alt32
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedYes ✓
Social Media Presence
caodangytb.edu.vn SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for caodangytb.edu.vn is good at 23 characters: "Cao đẳng Y tế Thái Bình". The length is acceptable, though it may be slightly truncated in some search result displays.
The meta description is 89 characters (well-optimized): "Cao đẳng Y tế Thái Bình - cao đẳng y, cao dang y,cao đẳng y tế, thái bình, y tế thái bình". 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://caodangytb.edu.vn:443/, preventing duplicate content issues, the meta robots directive is set to index, archive, follow, noodp, and a favicon is configured.
No Open Graph tags are configured. When someone shares a link to caodangytb.edu.vn 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 8 terms including cao dang y te thai binh, cao dang y, cao đẳng y tế, thái bình, and sở y tế thái bình. 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.
Google SERP Preview
Cao đẳng Y tế Thái Bình
https://caodangytb.edu.vn
Cao đẳng Y tế Thái Bình - cao đẳng y, cao dang y,cao đẳng y tế, thái bình, y tế thái bình
Meta Tags
TitleCao đẳng Y tế Thái Bình...
Title Length23 chars
Meta Desc Length89 chars
H1—
Language—
Canonicalhttps://caodangytb.edu.vn:443/
Meta Robotsindex, archive, follow, noodp
Meta Keywordscao dang y te thai binh,cao dang y,cao đẳng y tế,thái bình,s...
Schema.org & Social
Schema Types—
OG Type—
OG ImageNot set
Twitter Card—
FaviconSet ✓