updown.io

A hosted website monitor that checks HTTP, TCP and ICMP endpoints, certificates and cron jobs.

PaidProprietaryWeb

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About updown.io

updown.io is a hosted monitoring service for websites and other online services. It runs HTTP(S), TCP(S) and ICMP checks every 15 seconds to every hour, over IPv4 and IPv6. It confirms downtime from at least two locations before alerting. It also warns about invalid or expiring TLS certificates and expiring domains, can match a text string instead of the status code, and watches cron jobs through pulse checks.

Alerts go to email, webhooks, Slack, Teams, Telegram, SMS, Statuspage and Zapier. Hosted status pages and a REST API are included. The price scales linearly with check frequency.

Strengths

  • Check interval adjustable from 15 seconds to 1 hour
  • Downtime confirmed from two locations before alerting
  • Certificate, domain expiry and cron job monitoring included
  • Many alert channels plus a REST API and webhooks

Limitations

  • No free tier mentioned
  • Hosted only, with no self-hosted option

Details

Pricing
PaidPay-per-use pricing that scales linearly with check frequency; cards, PayPal, SEPA and cryptocurrency are accepted.
License
Proprietary
Platforms
Web
How it runs
Hosted service
Account
Required
Works offline
No
Best suited for
Developers who want simple, inexpensive uptime checks priced by usage
Last verified
Added
Provenance
Selected from the TechWalrus Resource Hub (Status & Uptime Monitoring); facts checked against the developer's own pages, 2 sources on file.

Report a wrong fact or a dead link on this listing