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SSL Expiration Reminder vs Monitorable

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

SSL Expiration Reminder compared with Monitorable
DetailSSL Expiration Reminder logo SSL Expiration ReminderMonitorable logo Monitorable
What it doesAutomated SSL certificate expiration alerts via email, Telegram, Slack or webhook Server monitoring for teams running dedicated or cloud infrastructure
StageNot given Not given
FoundedNot given Not given
Based inFR GE
Pricing modelFreemium Freemium
PricingFree: 0€/month with 3 domains; Pro: 9€/month or 99€/year with 25 domains; Agency: 29€/month or 319€/year with 150 domains. Annual plans offer one month free. Lite: Free (3 servers). Pro: $9/month (10 servers). Scale: $29/month (40 servers). Enterprise: $79/month (150 servers). All paid plans include 14-day free trial and two months free with annual billing.
Key features
  • Daily certificate verification
  • Email, Telegram, Slack and webhook notifications
  • Customizable alert timing at 30, 15, 7, 5, 3 or 1 day before expiration
  • CSV import and export
  • Multiple recipients with domain-level assignment on Agency plan
  • Weekly and monthly email reports on paid plans
  • REST API for domain management on Agency plan
  • Invalid certificate alerts
  • One-command installation with no configuration required
  • Multi-channel alerting (email, Slack, Discord, Telegram, PagerDuty, ntfy, webhooks)
  • Historical metrics retention from 35 days to 400 days
What makes it different
  • No server installation required, reads certificates like a browser would
  • Free plan supports up to 3 domains without requiring a credit card
  • Combines automatic renewal alerts with notifications for failures that don't trigger alerts
  • Suitable for agencies managing client sites with per-domain recipient control
  • Agent uses under 0.1% CPU and 12-16MB memory with no configuration needed
  • Metrics appear within 60 seconds of installation
  • Intelligent alerting that avoids false positives with averaging and dual-check requirements
  • All monitoring is agent-based with no external probes connecting to your server
  • Built on open-source OpenTelemetry Collector standard
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check2 no change since last check
Trust Flow (Majestic)01
Citation Flow (Majestic)013
Referring domains (Majestic)03

6 details filled in for both companies.

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