New Multi-region uptime checks and custom-domain status pages

ServiceAlert.ai vs IsDown

IsDown tracks third-party status well. ServiceAlert adds uptime, certs, status pages, and incident management.

Category Third-party status aggregator
IsDown pricing $27 Solo / $49 Pro / $99 Premium / $179 Business per month
Catalog / scope ~6,320 services
Recommended ServiceAlert path Pro · $10/mo/user

What IsDown does well

  • Large catalog (~6,320 services)
  • Chrome extension for always-visible status
  • Published "outages caught early" stats as a trust signal
  • Per-workspace seat limits on Business tier

Where the products differ

Capability
IsDown
ServiceAlert.ai
Uptime monitoring for your own services
No
Yes
Basic SSL monitoring
No
Yes
Incident management
No
Full SEV1–SEV4 lifecycle + Slack war rooms
Transparency Ratings (A–F) for vendor status pages
No
Yes. Published A to F transparency grades, computed only from source-attested observations
Price at unlimited-users tier
$179/mo (15 admin cap)
$249/mo (unlimited)
Source-attested observation history
No published attestation standard
Every observation is bound to the exact collector configuration that produced it, enforced by a database constraint, and unattested rows are excluded from every reliability metric

When to pick IsDown instead

If you only need third-party status aggregation for a small team and Chrome-extension visibility matters most, IsDown is a focused product. ServiceAlert is the broader reliability workflow for vendor status, first-party uptime, status pages, incidents, and basic SSL monitoring.

Migration

Evaluate both products with the same services

Run both products in parallel until ServiceAlert has reproduced the signals your team actually uses. There is no automated-import promise, and you do not need to cancel first.

  1. InventoryChoose the three vendor dependencies or owned endpoints that drive the most incidents.
  2. RecreateAdd those signals in ServiceAlert while keeping IsDown active.
  3. CompareValidate alert timing, routing, status-page behavior, and retained evidence side by side.
  4. Cut overMove the remaining workflow only after owners agree the parallel run is complete.

Scope and price

The $249 monthly Business plan includes uptime monitoring, third-party vendor status, basic SSL monitoring, status pages, dependency maps, alert clustering, and incident management. IsDown may cover a narrower or broader set of needs. See the methodology page for review dates, source limits, and pricing assumptions.

Get migration help Visit IsDown

No card required for an eligible first trial. Without a payment method, the trial ends automatically.

Shopping for replacements? See the IsDown alternative page.

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FAQs

How do ServiceAlert.ai and IsDown differ?

The comparison above focuses on Uptime monitoring for your own services, Basic SSL monitoring, and Incident management. Use the published capability table and pricing assumptions to evaluate the products against the same services.

What does IsDown do well?

Large catalog (~6,320 services), Chrome extension for always-visible status, and Published "outages caught early" stats as a trust signal.

When should I choose IsDown instead?

If you only need third-party status aggregation for a small team and Chrome-extension visibility matters most, IsDown is a focused product. ServiceAlert is the broader reliability workflow for vendor status, first-party uptime, status pages, incidents, and basic SSL monitoring.

Last reviewed: 5 September 2026. We update these pages when pricing or capabilities change. If something's stale, email support@servicealert.ai.