en
IIS Windows Server
Học viện Kỹ thuật mật mã
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 August 22, 2026 at 16:04, www.actvn.edu.vn has a security score of 52.3/100 (grade F – “Low”). CyStack’s automated assessment recorded 15 issues to review after completing 97.3% of applicable checks. The website owner should address “HTTPS/TLS endpoint reachability” first, then review the remaining items in order of impact.
At assessment time, CyStack did not find www.actvn.edu.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.
Check whether the website uses a secure connection and whether its HTTPS certificate remains valid.
Frequently asked questions
A valid SSL certificate still does not prove that www.actvn.edu.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.
HTTPS on www.actvn.edu.vn could not be reached during this assessment, so its SSL certificate and transport encryption could not be evaluated.
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.actvn.edu.vn.
Why it matters
This check only confirms whether a TLS handshake can be established with at least one tested resolved endpoint on the HTTPS port. Certificate trust, hostname identity, validity, chain, protocol, and cryptographic strength are evaluated separately.
What to do
Provide the entire website over HTTPS using a certificate trusted by common browsers.
Diagnostic information
The scanner could not complete a TLS handshake with the HTTPS endpoint during this assessment.
Evidence and check scope
This is the port on which the scanner attempted a TLS connection. The port number alone does not prove that the port is open or that HTTPS works.
Why it matters
Remote administration services such as RDP, VNC, Docker, Kubernetes, and management consoles are high-value targets. Public exposure allows anyone on the Internet to attempt passwords or exploit an unpatched service.
What to do
Remove direct Internet access and require a VPN, a hardened access gateway, or trusted source networks; also use MFA where supported.
Why it matters
Services such as SMB, NFS, and rsync can reveal or modify shared files and have a history of serious vulnerabilities. They rarely need to accept connections directly from the public Internet.
What to do
Limit file-sharing services to private networks or a tightly controlled VPN, and allow only the users and systems that require access.
Evidence and check scope
Identify website protection and check whether public IPs appear on warning lists.
| Hosting or network provider | DroneBL | Mailspike | PSBL | SpamCop | blocklist.de | Spamhaus |
|---|---|---|---|---|---|---|
| 42.112.213.88 | Not listed | Not listed | Not listed | Not listed | Not listed | Unavailable |
Check domain and email settings that help prevent brand impersonation.
There are currently 228 exposed email records matching the actvn.edu.vn domain. These records may be old or already resolved. The website owner should verify them before resetting passwords or locking related accounts.
The assessment identified 7 technologies on www.actvn.edu.vn, including 2 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.actvn.edu.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 30+ public subdomains of actvn.edu.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 subdomainsEvidence and check scope
Recently completed assessments, prioritizing websites with a similar sector, country or security grade for easier comparison.
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