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Đại học Đà Nẵng
Cổng thông tin Đại học Đà Nẵng: cập nhật tin tức, sự kiện, thông báo, tuyển sinh và hoạt động đào tạo – nghiên cứu khoa học
IndustryOriginGlobal rankRank in Vietnam
Updated at The higher the score, the more externally observable protections the system has recorded. This page does not certify that the website is reputable, legitimate, or completely free of vulnerabilities.
As of September 11, 2026 at 23:17, www.udn.vn has a security score of 79/100 (grade C – “Fair”). CyStack’s automated assessment recorded 11 issues to review after completing 90.2% of applicable checks. The website owner should address “Database or cache exposed to the Internet” first, then review the remaining items in order of impact.
At assessment time, CyStack did not find www.udn.vn or related infrastructure on any scam, phishing, or malware warning list after checking 5 online reputation sources. This result reflects external observations; it does not guarantee absolute safety or verify the organization’s legal status or reputation.
Addresses, servers and services that are visible from the Internet.
Frequently asked questions
A valid SSL certificate still does not prove that www.udn.vn is safe, legitimate, or free of scam signals. For a more complete assessment, this report also checks phishing and malware, exposed email records, IPs and open ports, subdomains, technologies, and CVEs that may apply to observed versions.
www.udn.vn used a valid SSL certificate at assessment time, valid until December 26, 2026. This status may change when the certificate expires or the server configuration changes.
Review HTTPS and certificateData sources
CyStack compiles scan results from its internal cybersecurity monitoring systems, including CyStack VulnScan and CyStack Threat Intelligence, together with publicly available Internet data. The assessment only observes and analyzes information already available; it does not attempt unauthorized access, test passwords, send exploit code, or change or disrupt the assessed system.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the enterprise.
These 3 failed checks or warnings have the greatest impact on the result for www.udn.vn.
Why it matters
Databases and caches often contain sensitive information and are normally used only by internal applications. Direct Internet access makes password attacks and configuration mistakes much more likely to become a data breach.
What to do
Listen only on private interfaces, allow connections only from required application systems, and require strong authentication and encryption.
Evidence and check scope
Why it matters
Content Security Policy (CSP) limits where scripts, styles, frames, and other browser content may come from. A strong policy reduces the impact if an attacker manages to inject content into a page.
What to do
Define only the sources the application needs, test the policy before activating it, and avoid broad wildcard (*) rules, unsafe-inline, and unsafe-eval where possible.
Why it matters
TLS 1.0 and TLS 1.1 use outdated security designs and are no longer accepted by modern standards. Leaving them enabled allows older, weaker connection methods.
What to do
Disable TLS 1.0 and TLS 1.1, support TLS 1.2 securely, and enable TLS 1.3 where possible.
Evidence and check scope
Each public IP is grouped with its open services, identified products and any CVEs that may apply to the observed version.
222.255.130.178static.vnpt.vn
OpenRestyOpenRestyWeb ServersVersion not visible
PostgreSQLVersion not visibleNo record associated with an @udn.vn email address was found in the currently available data. This does not rule out incidents that have not been observed.
The assessment identified 22 technologies on www.udn.vn, including 1 with a version, but CVE matching did not complete for every version. An empty result should not be treated as proof that no vulnerability exists.
Review technologies and CVEsThe assessment observed 1 public IPs and 4 open ports for www.udn.vn. An open port is not the same as a vulnerability, but the website owner should keep every public service updated and appropriately restrict access.
Review IPs and open portsThe assessment observed 528+ public subdomains of udn.vn. This list can reveal additional entry points such as APIs, administration systems, or test environments, but it does not mean that every subdomain is risky.
Review discovered subdomainsScope of this check
This check only evaluates the homepage response and content that the scanner could reach. Other pages and sign-in flows may use different settings.
Evidence and check scope
References
References
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
openresty.org
cdnjsC
CloudflareD
DNN+8cdnjsCDNVersion not visiblecdnjs is a free distributed JS library delivery service.
cdnjs.comCloudflareCDNVersion not visiblePostgreSQLPostgreSQLVersion not visibleProduct not identified
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
www.cloudflare.comDNNCMSVersion not visible
Google AnalyticsAnalyticsVersion not visibleGoogle Analytics is a free web analytics service that tracks and reports website traffic.
google.com/analytics
HSTSSecurityVersion not visibleHTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
www.rfc-editor.org/rfc/rfc6797#section-6.1
jQueryJavaScript LibrariesVersion not visiblejQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
jquery.com
Microsoft ASP.NETWeb FrameworksVersion not visibleASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
www.asp.net
NginxReverse Proxies · Web ServersVersion not visibleNginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
nginx.org/enOpenRestyWeb ServersVersion not visibleOpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
openresty.org
PopperMiscellaneous1.14.3Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.
popper.js.org
YouTubeVideo PlayersVersion not visibleYouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.
www.youtube.comRecently completed assessments, prioritizing websites with a similar sector, country or security grade for easier comparison.
Vietnam
