Cybersecurity
Cybersecurity Risk Assessment & Remediation
Drensys helps businesses identify, prioritize, and fix cybersecurity risks across websites, applications, endpoints, servers, users, and infrastructure.
All free tools
Drensys Tools
External Security Health Check
Check whether your public-facing website, app, or network has exposed security risks — including open remote access ports, weak SSL/TLS, missing browser security headers, public hostnames, and external vulnerability indicators.
Safe high-level check. No login required. Full penetration testing requires written authorization and defined scope.
Check Your Website, App, and Network Exposure
Run a free external security check
Enter a website, domain, or public IP. We use public information and limited non-invasive checks only.
No login required. Full penetration testing requires written authorization and a defined scope.
Free Expert Review
Get a free expert review of your security exposure
A Drensys engineer will read through your scan and write up prioritized fixes for cybersecurity, website security, server hardening, remote-access exposure, vulnerability remediation, managed monitoring, and business continuity.
- 100% free, no commitment
- Reply within 1 business day
- Detailed written assessment
Tell us how to reach you
We’ll attach your scan to your request so the engineer doesn’t have to ask twice.
- 100% free. No credit card, no commitment.
- Quick reply. Most requests are answered within 1 business day.
- Detailed assessment. A real engineer reviews your scan in writing.
What This Security Health Check Reviews
We look at the same external signals an attacker (or your cyber insurer) would — public DNS, certificates, ports, browser security headers, and known-CVE indicators — without performing intrusive testing.
- HTTPS & SSL/TLS
- We confirm HTTPS is enforced, the certificate is valid, and HSTS / TLS settings are not weakening browser protection.
- Browser security headers
- We check for HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.
- Five high-risk ports
- A safe non-invasive probe of TCP/80, 443, 22 (SSH), 3389 (RDP), and 445 (SMB) to flag remote-access exposure.
- Vulnerability indicators
- Passive lookup of public CVE / fingerprint data so known issues don’t hide in plain sight.
- Public assets & subdomains
- Certificate Transparency search reveals subdomains and forgotten systems linked to your domain.
- DNS & technology hints
- A summary of DNS, CDN/WAF use, and detected web technology — informational, not proof of vulnerability.
Why Open Ports and Website Security Matter
Most breaches don’t start with a zero-day. They start with an exposed admin port, a forgotten subdomain, an expired certificate, or a missing browser security header. The free check focuses on those high-impact, low-effort signals.
- Public exposure
- What an attacker can see without ever touching your network.
- Browser protection
- Headers and TLS settings determine how safe your site is for real users.
- Forgotten assets
- Old subdomains and stale services are some of the most common breach paths.
How Drensys Helps Reduce Security Risk
The free check tells you what’s exposed. Drensys engineers fix it — across cybersecurity, managed services, app security, server hardening, business continuity, and executive consultation.
Managed Services
Ongoing Monitoring & Managed Protection
A one-time check is useful, but security risks change. Drensys can monitor devices, users, endpoints, servers, and network exposure continuously.
Website & App Security
Secure Your Website, Portal, or Application
If the health check finds missing headers, weak HTTPS, exposed technology, or web app issues, Drensys can help fix, maintain, and secure your application.
Server & Network Hardening
Secure Exposed Servers and Remote Access
If remote access ports or server services are exposed, Drensys helps with firewall rules, VPN, access control, patching, DNS, routing, and secure server configuration.
Business Continuity
Remote Access, VPN, and Business Continuity
Drensys can secure remote connectivity, VPN, SD-WAN, failover, and continuity systems so the business stays available without unnecessary exposure.
vCIO & Consultation
Security Roadmap and Executive Guidance
Drensys turns technical findings into a business security roadmap for budgeting, compliance, cyber insurance, disaster recovery, and long-term IT planning.
Already have a scan result above? Drensys engineers will turn it into a remediation plan.
Request an Expert Security Review