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Monitoring

HDS Sentinel™

Know when it fails — configure it yourself

HDS Sentinel™ is self-serve uptime monitoring for sites and endpoints you add yourself. Checks, alerts, and status pages run in the EU/EEA — sign up, configure monitors, and go live without a managed onboarding.

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What it does

Periodic uptime checks, alerts when something needs attention, and status or badge endpoints for public or internal views. Limits and channels follow the plan you choose — you sign up and configure everything yourself. Paid plans: 99.9% monthly target (SLA credits) for the HDS check and control plane (not your monitored URL); Free is best-effort with no availability commitment.

What’s included

  • Self-serve control — you configure monitors and go live without a managed onboarding
  • European residency — checks and status data stay on EU/EEA infrastructure
  • Shared truth — status pages and embeddable badges for customers and teammates
  • Email status-page subscriptions with double opt-in (DOI), easy unsubscribe, and an imprint-linked disclaimer
  • Bilingual status pages on Team; Free, Starter, and Pro choose EN or DE only
  • Alerts in your workflow — reach the people who need to act, in the tools they use
  • History you can show — retention and uptime views scale with how you present reliability
  • Paid plans: 99.9% monthly target (SLA credits) on the HDS check plane — Free is best-effort only

Plans

FeatureFree€0Starter€7/moPro€19/moTeam€39/mo
Monitors204080150
Minimum check interval5 min1 min1 min30 s
Monitor typesHTTP/S, Keyword, Ping, PortHTTP/S, Keyword, Ping, PortHTTP/S, Keyword, Ping, Port, Heartbeat, DNSHTTP/S, Keyword, Ping, Port, Heartbeat, DNS
SSL & domain expiry (HTTP)✓✓✓✓
Status pages1 public1310
Custom status domain—✓✓✓
Password-protected status pages—✓✓✓
Status badge endpoints (JSON/SVG)✓✓✓✓
Status page languageEN or DEEN or DEEN or DEBilingual (EN + DE)
Status page subscriptions (email · DOI · easy unsubscribe)✓✓✓✓
Subscribe disclaimer links to imprint✓✓✓✓
Status subscription email brandingHDS-branded onlyHDS-branded onlyHDS-branded onlyCustomer logo · URLs
Check history retention30 days90 days365 days365 days
Status-page uptime history7 / 30 / 90 days7 / 30 / 90 days7 / 30 / 90 / 365 days7 / 30 / 90 / 365 days
Alert contacts131025
Email alerts✓✓✓✓
Slack, Discord & webhook alerts——✓✓
EU/EEA-hosted checks✓✓✓✓
99.9% monthly target (SLA credits) — HDS check planeBest-effort (no SLA)99.9% monthly target (SLA credits)99.9% monthly target (SLA credits)99.9% monthly target (SLA credits)
Self-serve signup & configuration✓✓✓✓
  • Free€0
    • Monitors20
    • Minimum check interval5 min
    • Monitor typesHTTP/S, Keyword, Ping, Port
    • SSL & domain expiry (HTTP)✓
    • Status pages1 public
    • Custom status domain—
    • Password-protected status pages—
    • Status badge endpoints (JSON/SVG)✓
    • Status page languageEN or DE
    • Status page subscriptions (email · DOI · easy unsubscribe)✓
    • Subscribe disclaimer links to imprint✓
    • Status subscription email brandingHDS-branded only
    • Check history retention30 days
    • Status-page uptime history7 / 30 / 90 days
    • Alert contacts1
    • Email alerts✓
    • Slack, Discord & webhook alerts—
    • EU/EEA-hosted checks✓
    • 99.9% monthly target (SLA credits) — HDS check planeBest-effort (no SLA)
    • Self-serve signup & configuration✓
  • Starter€7/mo
    • Monitors40
    • Minimum check interval1 min
    • Monitor typesHTTP/S, Keyword, Ping, Port
    • SSL & domain expiry (HTTP)✓
    • Status pages1
    • Custom status domain✓
    • Password-protected status pages✓
    • Status badge endpoints (JSON/SVG)✓
    • Status page languageEN or DE
    • Status page subscriptions (email · DOI · easy unsubscribe)✓
    • Subscribe disclaimer links to imprint✓
    • Status subscription email brandingHDS-branded only
    • Check history retention90 days
    • Status-page uptime history7 / 30 / 90 days
    • Alert contacts3
    • Email alerts✓
    • Slack, Discord & webhook alerts—
    • EU/EEA-hosted checks✓
    • 99.9% monthly target (SLA credits) — HDS check plane99.9% monthly target (SLA credits)
    • Self-serve signup & configuration✓
  • Pro€19/mo
    • Monitors80
    • Minimum check interval1 min
    • Monitor typesHTTP/S, Keyword, Ping, Port, Heartbeat, DNS
    • SSL & domain expiry (HTTP)✓
    • Status pages3
    • Custom status domain✓
    • Password-protected status pages✓
    • Status badge endpoints (JSON/SVG)✓
    • Status page languageEN or DE
    • Status page subscriptions (email · DOI · easy unsubscribe)✓
    • Subscribe disclaimer links to imprint✓
    • Status subscription email brandingHDS-branded only
    • Check history retention365 days
    • Status-page uptime history7 / 30 / 90 / 365 days
    • Alert contacts10
    • Email alerts✓
    • Slack, Discord & webhook alerts✓
    • EU/EEA-hosted checks✓
    • 99.9% monthly target (SLA credits) — HDS check plane99.9% monthly target (SLA credits)
    • Self-serve signup & configuration✓
  • Team€39/mo
    • Monitors150
    • Minimum check interval30 s
    • Monitor typesHTTP/S, Keyword, Ping, Port, Heartbeat, DNS
    • SSL & domain expiry (HTTP)✓
    • Status pages10
    • Custom status domain✓
    • Password-protected status pages✓
    • Status badge endpoints (JSON/SVG)✓
    • Status page languageBilingual (EN + DE)
    • Status page subscriptions (email · DOI · easy unsubscribe)✓
    • Subscribe disclaimer links to imprint✓
    • Status subscription email brandingCustomer logo · URLs
    • Check history retention365 days
    • Status-page uptime history7 / 30 / 90 / 365 days
    • Alert contacts25
    • Email alerts✓
    • Slack, Discord & webhook alerts✓
    • EU/EEA-hosted checks✓
    • 99.9% monthly target (SLA credits) — HDS check plane99.9% monthly target (SLA credits)
    • Self-serve signup & configuration✓
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