Top Alternatives to TLS Checker in 2026
Top Online & Software as a Service SaaS apps like TLS Checker

TLS Checker
TLS Checker is a Free TLS / SSL Expiry Monitoring Service which includes Discovery, Inventory and Management of certificates. For Free.
★ 2.4 average rating
License
Free • ProprietaryPlatforms
Online,Software as a Service SaaS
13 alternatives found

Hosted Status Page
★ 1.6Hosted Status Page (HSP) is an incident management tool bundled with automated downtime detection. Incidents can be scheduled or pushed real-time. Each website has it's own Status Page with uptime statistics (ping and page load time), 30 day of detected and raised incidents...

Hydrozen.io
★ 1.8Uptime monitoring service with built-in Statuspages.

Instatus
Get a status page in seconds. Stop wasting time to reply to endless status questions. Avoid downtime frustration. Rebuild customer trust.

Notify.Events
★ 2.2Notify.Events is a handy service that collects notifications from various digital sources like Google Home/Nest, WordPress, Zabbix, Jenkins and sends them to your Slack, Viber, Signal, Discord and 50+ more communication tools. The no-hassle setup makes it really simple!

OnlineOrNot
We alert you, before your customers do.

OpenStatus
★ 2.4OpenStatus is an open source monitoring services with on-call managements.
Phare
★ 1.0Phare is the all-in-one platform that covers everything you need to run high-quality production websites with uptime monitoring, analytics, security, incident management, and alerting.

Simple Ping
Simple-ping.com | Seamlessly monitor your websites, web applications and servers

StablePing
★ 2.8StablePing is a fully managed uptime monitoring service for just $3.95/month. Whenever your website goes down, their system will alert you within seconds via email or SMS (and they'll work with you to get it back online).

Status.io
★ 2.9Status.io is a platform for system status pages and status notifications. Companies rely on Status.io to track outages, schedule planned maintenances, broadcast status notifications, and much more; and their customers love the transparency.

Uptime Monitor
Uptime Monitor monitors your resources using HTTP/HTTPS (highly customizable), TCP, or Ping protocols. It supports multiple notification channels such as SMS, email, Slack, and Discord. In addition, Uptime Monitor can host status pages on your own domain for free.

UptimeLine
UpTimeLine checks that your websites are online and notifies you in case of downtime. Get up to 20 monitors checked every 5 minutes for free. All HTTP methods, custom body and headers, regex check on response body, SSL certificate monitoring and more.

Zenduty
Zenduty is an incident management platform that provides cross-channel (Email, Phone/SMS, Slack) alerts to your team when critical incidents occur and help your team preempt, minimize and resolve downtime to ensure that your customers stay happy.