Dev tools · alternatives · 2026

24 alternatives to CertNotifier

Get notified before your certificates expire

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
SSL Alerts▲157
Free service to send SSL certificate expiration alerts
2018 · alerts.httpscop.com · its alternatives →
2
Monitorly▲76
Get real-time alerts for your SSL expiry
2022 · its alternatives →
3
CertCobra▲12
Get Alerted When SSL Certificates Are About To Expire
2025 · its alternatives →
4
Never have an SSL certificate expire again▲40
Automated SSL certificate monitoring with expiration alerts, Certificate Transparency discovery, and Slack/Discord/Teams notifications. Prevent downtime with continuous monitoring.
2022 · haveibeenexpired.com · its alternatives →
5
haveibeenexpired▲68
No more expired SSL certificates
2021 · haveibeenexpired.com · its alternatives →
6
CertWarden: SSL Expiry Tracker▲10
Track SSL expiry before it breaks your site
Feb 2026 · apps.apple.com · its alternatives →
7
SSL Remind▲63
Never forget to renew your SSL certificates
2020 · sslremind.com · its alternatives →
8
CertChecker▲1
Never find out an SSL cert expires too late
Aug 2026 · certchecker.dev · its alternatives →
9
SSL Monitoring Solution▲6
Monitor SSL certs and avoid unexpected downtime
2025 · its alternatives →
10
Free Certificate Monitoring via RSS▲120
2024 · raphting.dev · its alternatives →
11
SSLSeek▲1
SSL Certificate Checker With Expiration Notifications
2020 · its alternatives →
12
Kit.domains▲198
Hello Hacker News community, We are excited to announce the launch of KIT.DOMAINS, our new tool designed to simplify the management and monitoring of domains. KIT DOMAINS is a convenient and reliable solution for tracking the status of your domains and SSL certificates. With KIT DOMAINS, you will receive timely notifications about expirations and emerging issues, ensuring your sites remain operational and secure. Key features: - Expiration Tracking: Monitor the expiration dates of your domains to prevent accidental lapses. - SSL Certificate Monitoring: Keep your SSL certificates up-to-date…
2024 · kit.domains · its alternatives →
13
Nodeify▲72
Website SSL certificate monitoring
2020 · its alternatives →
14
CertSonar
SSL, domain & DNS monitoring get alerted before things break
Mar 2026 · certsonar.com · its alternatives →
15CS
CertStream – See SSL certs as they're issued in real time▲142
2017 · certstream.calidog.io · its alternatives →
16
Watch My SSL▲6
Monitoring SSL Certificates to Prevent Expiry
2024 · watchmyssl.com · its alternatives →
17
TLS cert expiration dashboard▲40
A dashboard written in JavaScript & HTML to check the remaining time before a TLS certificate expires. - cmrunton/tls-dashboard
2016 · github.com · its alternatives →
18
SSLreminder▲78
Keep the business running, get reminded to extend your SSL
2021 · sslreminder.pro · its alternatives →
19
SSL Checker▲4
Check SSL certifications and monitor expiration dates.
2018 · apps.apple.com · its alternatives →
20AD
Automatic Discovery for Let's Encrypt Certificate Monitoring▲11
2017 · keychest.net · its alternatives →
21
TrackSSL▲11
Stop worrying about your SSL certificates expiring
2017 · trackssl.com · its alternatives →
22
IsItWorking.info▲7
Monitor SSL Certificates. Be warned before they expire!
2019 · isitworking.info · its alternatives →
23
StaySecure▲3
Free SSL Certificates Expiration Monitoring Tool
2019 · staysecure.io · its alternatives →
24
CertRadar – Find every certificate ever issued for your domain▲21
Free tools for SSL/TLS certificate transparency search, configuration analysis, and security monitoring.
Jan 2026 · certradar.net · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →