Dev tools · alternatives · 2026

24 alternatives to Certly

Know before your SSL, domain, or DNS breaks

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

1
Momento▲140
A powerful platform to help you monitor your domains
2020 · domexus.com · its alternatives →
2
Notify.domainsfree tier, from $2/mo▲322
Know the moment a domain opportunity appears
Aug 2026 · notify.domains · its alternatives →
3
Observe Domains▲78
Monitor domain settings, SSL certificates, expiration dates
2022 · observe.domains · its alternatives →
4
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 →
5
haveibeenexpired▲68
No more expired SSL certificates
2021 · haveibeenexpired.com · its alternatives →
6
Monitorly▲76
Get real-time alerts for your SSL expiry
2022 · its alternatives →
7
CertSonar
SSL, domain & DNS monitoring get alerted before things break
Mar 2026 · certsonar.com · its alternatives →
8
SSL Monitoring Solution▲6
Monitor SSL certs and avoid unexpected downtime
2025 · its alternatives →
9
SSLreminder▲78
Keep the business running, get reminded to extend your SSL
2021 · sslreminder.pro · its alternatives →
10
Domain Scan Tools▲5
Detect domain security issues before they hurt your business
May 2026 · domainscan.tools · its alternatives →
11
Watch My SSL▲6
Monitoring SSL Certificates to Prevent Expiry
2024 · watchmyssl.com · its alternatives →
12
Domainwarden▲7
Stay on top of your domains with DNS, RDAP & SSL monitoring.
Oct 2025 · its alternatives →
13
Domain Comet▲88
We monitor your domains, so you don't have to.
2020 · its alternatives →
14
Certificate Transparency Log Monitor▲53
2016 · sslmate.com · its alternatives →
15
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 →
16
CertWarden: SSL Expiry Tracker▲10
Track SSL expiry before it breaks your site
Feb 2026 · apps.apple.com · its alternatives →
17
SSL Remind▲63
Never forget to renew your SSL certificates
2020 · sslremind.com · its alternatives →
18
domainpatroller.com▲7
Home
2025 · its alternatives →
19
CertChecker▲1
Never find out an SSL cert expires too late
Aug 2026 · certchecker.dev · its alternatives →
20
Wakeful▲2
Know when your cron jobs, SSL certs, and DNS break
Aug 2026 · wakeful.dev · its alternatives →
21
DomainPulse.io▲5
Hey HN! We built a tool to track domain expiry dates and get alerts via Email, Telegram, and Calendar. You can subscribe to an iCal feed to sync expiry dates to any calendar app. Would love your feedback!
2024 · domainpulse.io · its alternatives →
22
UptimeObserver▲12
Uptime monitoring for all of your online services
2025 · uptimeobserver.com · its alternatives →
23
Talgora▲8
Monitor your site's SSL and headers — before attackers do
2025 · talgora.com · its alternatives →
24DS
DNS Spy – Monitor, back-up and alert on changes in DNS records▲6
2017 · dnsspy.io · its alternatives →

Also compare

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 →