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DownNotifier.com vs UptimeKeeper

Both stand on website monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

DownNotifier.com

Free plan APIWeb

DownNotifier.com combines website availability checks with content, SSL, and email-record validation. Its plans specify different site limits and monitoring intervals, and users should note how monitor URL passwords are handled.

Visit DownNotifier.com

UptimeKeeper

Free plan APIWeb

UptimeKeeper combines availability, performance, certificate, content, alerting, status-page, and API tools. The free plan offers essential monitoring, while teams needing advanced checks or SMS should consider the paid tiers.

Visit UptimeKeeper

The facts

DownNotifier.comUptimeKeeper
Free planYesYes
Open sourceNot publishedNot published
Runs onAPI, WebAPI, Web
Lowest paid planPREMIUM: $14.95 a yearIndividual: $7 a month
Plans published33
MakerNot publishedNot published
Websitedownnotifier.comuptimekeeper.com
On website monitoring software#8 of 55#29 of 55

DownNotifier.com: what it does well

  • Alerts on connection errors and specified HTTP status codes.
  • Can check for missing text on monitored pages.
  • SSL checks run once per hour.
  • Free tier covers five websites with 10-minute checks.
  • API documentation is linked from the site.

What to know first

  • Free-tier SMS alerts require credits.
  • Free monitoring checks every 10 minutes.
  • Passwords in monitor URLs are visible when editing monitors.
  • DKIM validation requires sending a test email.

UptimeKeeper: what it does well

  • Monitors websites, APIs, and ports globally
  • Checks SSL, domains, latency, and page speed
  • Email and SMS downtime alerts
  • Branded status pages can be embedded
  • API access supports automation

What to know first

  • Advanced SSL and domain monitoring are paid
  • SMS alerts are paid features
  • Paid plans start at 7.00 USD monthly

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