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UptimeKeeper vs Visual Sentinel

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.

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

Visual Sentinel

Free plan AndroidAPIiPhone+1

Choose Visual Sentinel if you need visual page comparisons alongside uptime, server, and other monitoring, with a free plan for up to three monitors. Look at Business or Agency if you need API access, and Agency if you need white-label client reports.

Visit Visual Sentinel

The facts

UptimeKeeperVisual Sentinel
Free planYesYes
Open sourceNot publishedNo
Runs onAPI, WebAndroid, API, iPhone, Web
Lowest paid planIndividual: $7 a monthSolo: $6 a month
Plans published36
MakerNot publishedNot published
Websiteuptimekeeper.comvisualsentinel.com
On website monitoring software#29 of 55#25 of 55

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

Visual Sentinel: what it does well

  • Visual checks compare browser screenshots with a prior baseline.
  • Dynamic page elements can be excluded by CSS selector.
  • Failed uptime checks are confirmed across selected regions.
  • Alerts support email, chat, incident, and monitoring channels.
  • The free plan includes three monitors and one status page.

What to know first

  • The free plan checks every 10 minutes.
  • API access is listed only for Business and Agency.
  • Solo includes one monitor, one server, and one visual site.

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