Don't let the retirement of NCSC Web Check create a blind spot in your enterprise security.
On March 31, 2026, the UK’s National Cyber Security Centre (NCSC) officially retired its long-running Web Check service. Launched in 2017 under the Active Cyber Defence (ACD) initiative, Web Check served as a free, essential safety net for UK public sector bodies and business entities looking to identify basic website misconfigurations, weak encryption protocols, and unpatched web software.
However, with the service now switched off, many organizations are left with a critical visibility gap in their digital perimeters.
If your team relied on Web Check, or if you are looking to step up from basic, periodic scans to proactive defense. Here is what you need to know about replacing it, and how CyberSentrx delivers an enterprise-grade alternative built for modern threats.
What Did NCSC Web Check Do?
NCSC Web Check was built to give UK organizations a foundational view of their public web posture. It focused primarily on:
Basic Vulnerability Scanning: Flagging known security flaws in web software and Content Management Systems (CMS).
TLS / SSL Certificate Inspections: Identifying expiring, misconfigured, or outdated web encryption standards.
Public Protocol Checks: Highlighting configuration errors in internet-facing web assets.
While Web Check was a landmark tool when introduced, the NCSC actively recommends that organizations adopt commercial External Attack Surface Management (EASM) platforms to maintain continuous domain visibility.
Why Basic Web Checks Are No Longer Enough
The modern attack surface expands far beyond simple homepage URLs. Cloud platforms, subdomains, APIs, and remote workforce credentials change on a daily basis.
A point-in-time check might green-light your primary domain today, while completely missing:
Forgotten Subdomains & Shadow IT: Subdomains created by software teams or marketing agencies that lack security oversight.
Exposed Credentials on the Dark Web: Stolen employee passwords and session tokens leaked from third-party breaches.
Exploitable APIs & Storage Buckets: Unsecured cloud storage buckets or public-facing application programming interfaces.
CyberSentrx: The Enterprise Alternative to NCSC Web Check
CyberSentrx takes over where NCSC Web Check left off—moving your business from basic periodic scanning to continuous, automated External Attack Surface Management (EASM).
Comprehensive Digital Footprint Discovery
CyberSentrx automatically catalogs every external asset tied to your brand—including forgotten subdomains, open ports, cloud resources, and third-party web services that basic scanners overlook.
Integrated Dark Web & Credential Protection
Websites don't just get breached via web code; they get breached via compromised credentials. CyberSentrx actively monitors dark web marketplaces for leaked employee email addresses, passwords, and active session tokens linked to your domains.
Concise Monthly Executive Reports
Security teams don't need hundreds of pages of unprioritized log noise. Every month, CyberSentrx generates a clean, executive-ready Monthly Attack Surface & Compliance Report.
EASM Comparison: Web Check vs. CyberSentrx
Feature | NCSC Web Check (Retired) | CyberSentrx EASM Platform |
Status |
|
|
Asset Discovery | Manual domain entry only | Automated subdomain & cloud discovery |
Vulnerability Scanning | Basic web software checks | Deep web code, port, & framework scanning |
Credential & Dark Web Coverage | None | Real-time monitoring for stolen credentials |
Reporting & Insights | Static online dashboard | Automated Monthly Executive PDF Reports |
Alerting | Basic email notifications | Structured alerts |
Upgrade Your Web Security Today – Start Your Free Trial
Don't let the retirement of NCSC Web Check create a blind spot in your enterprise security.
With CyberSentrx, you can replace legacy checks with visibility into your entire external attack surface—backed by automated monthly reports that keep your leadership team informed and compliant.
How to Get Started with a Free 30-Day Trial:
Enter Your company details: Visit our registration page and enter your company’s primary domain name (e.g.,
company.co.uk).Automated Surface Scan: Our platform maps your public infrastructure, subdomains, and exposed web assets.
Receive Your First Baseline Report: Access your full interactive dashboard and download your initial External Attack Surface Baseline Report completely free for 30 days—no credit card required.
Start Your Free 30-Day CyberSentrx Trial Now
Have questions or need a custom enterprise evaluation? Contact our UK Security Team today.