Detect infrastructure incidents 10x faster.
Before your customers do.
Sentryx combines external attack surface monitoring + uptime checks, built for operators who need to see incidents first - not last.
Built for operators who need to detect incidents first.
If you run infrastructure for customers, Sentryx is your first line of defense.
MSPs & Managed Service Providers
Running 10–100 customer networks. Every incident your customer sees first = loss of trust. Sentryx detects external exposures and uptime issues before escalation calls.
Regional Telcos & Cloud Providers
Infrastructure teams managing multi-tenant, multi-region deployments. Need fast external visibility without internal access overhead.
Hosting Operators & Regional Cloud Resellers
Competitive MTTR matters. Combined attack-surface + uptime monitoring = one pane, one alert, one narrative to customers.
Why operators choose Sentryx over enterprise tools:
- Read-only scanning (no firewall rules, no internal access, no integration tax)
- Regional verification nodes (detect from SEA, not US; faster for your infrastructure)
- Evidence-based findings (here's proof, here's what to do next)
- Designed for teams of 5–50, not 500+
Nexusguard Operator Case Study
Detect external incidents 27 minutes faster than customers notice them.
Your customers notice outages before you do.
For operators, speed is trust. Here is what breaks MTTR:
1. You do not see external exposures until customers call
30–60 minutes to detect DDoS, BGP hijack, or SSL cert expiry. By then, your customer is calling you. Loss of trust. Loss of SLA credits.
2. Your monitoring is reactive, not continuous
Point-in-time scans miss what changed between checks. Attackers (and infrastructure changes) do not wait for your 24-hour scan cycle.
3. You are blind to regional incidents
US-based monitoring means you see incidents after your regional customers. Delay = customer finds it first.
External Attack Surface + Uptime Monitoring in One Pane.
Do not chain tools. See both problems in one dashboard:
| What Matters | What You See | Alert |
|---|---|---|
| External exposure | Port 8080 public, HTTP service exposed | HIGH: Unintended exposure |
| Service availability | Response time 2000ms, 40% timeout rate | HIGH: Availability degradation |
| Certificate expiry | SSL cert expires in 7 days | MEDIUM: Expiry approaching |
| DNS change | New subdomain registered pointing to us | MEDIUM: New asset detected |
Scan Once. Monitor Continuously.
A security scan tells you what is exposed now. Sentryx Monitor goes further by continuously watching your internet-facing infrastructure and alerting you when something changes.
3 findings
5 services
2 min ago
Know What Your Infrastructure Exposes
Sentryx examines the public-facing security signals attackers can observe during reconnaissance.
Security Changes When Your Infrastructure Changes
Certificates expire. DNS records change. Services appear. Ports open. Websites fail. Sentryx continuously monitors these signals so your team does not have to repeatedly check them manually.
Your External Security in One View
Turn scattered external security signals into a single view of your attack surface, monitoring health, and issues requiring attention.
Monitoring at Real-World Scale
NexusGuard uses Sentryx Monitor for continuous monitoring across hundreds of external security and availability monitors.
Start With a Scan. Monitor What Matters.
- Domain monitoring
- SSL monitoring
- Uptime monitoring
- Port monitoring
- Security alerts
- Historical data
- Higher monitor volumes
- Team requirements
- Advanced reporting
- Priority support
- Custom requirements
- Unlimited monitors and domains
- Regional verification nodes (Singapore, Jakarta, Bangkok)
- Custom alerting and integrations
- Dedicated onboarding
Need hundreds of monitors? NexusGuard currently operates 400+ monitors through Sentryx Monitor.
Security Intelligence
Questions operators ask before starting.
Does Sentryx need internal access?
No. External monitoring uses public signals and does not require VPN access, cloud administrator credentials, or an installed agent.
What can I monitor?
Websites, APIs, DNS, TLS certificates, domains, supported services, and externally visible changes.
Does this replace penetration testing?
No. Sentryx provides broad continuous visibility. Authorized penetration testing validates specific attack paths at a point in time.
Your External Attack Surface Already Exists
Discover what the public internet can see and start continuously monitoring the infrastructure your business depends on.