CertWatch is a self-hosted TLS monitor that ships as a single Go binary with SQLite - no database server, no agents, no telemetry.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Application type
Platforms
- Self-Hosted
- Docker
Oh Dear Alternatives
Sites and apps similar to Oh Dear include Uptime Kuma, which is free and open source. Other options are Better Stack, UptimeRobot, Pingdom and Monytra. Uptime Monitor Services like Oh Dear are a crowded field, with more than 50 alternatives for self-hosting, Android, iPhone, Linux and iPad.
Alternatives list
RelayRadar is an operator-focused reliability platform that combines uptime monitoring, incident alerts, and domain intelligence into a single workflow.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Online
United States
+5
FlareWatch is an open-source uptime monitor and status page that runs on Cloudflare Workers, within the Free plan. You fork the repository, and GitHub Actions deploys it to your own Cloudflare account, so there is no server to run.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Self-Hosted
PingRelay monitors your services and instantly alerts you when something breaks so you can respond before users are impacted.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Online
50 UptimeAlien alternativesUptime and error monitoring for websites, APIs, ports, DNS and SSL certificates — instant alerts across 12 channels, grouped error tracking and public status pages, GDPR-compliant.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Android
- Online
Germany
EU
CrawlRhino SEO Monitor is a website uptime and SEO monitoring tool that tracks downtime, response times, and changes to important SEO elements such as titles, meta descriptions, and headings.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Windows
United Kingdom
Website health monitoring for agencies, with branded client reports backed by daily uptime, Lighthouse, and visual checks.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Online
- Software as a Service (SaaS)
Lithuania- EU
+2
Vioro is a privacy-first, EU-native website monitoring platform that tracks uptime, SSL, and CMS vulnerabilities entirely from the outside, requiring zero plugins.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Online
Norway
Notifier monitors your websites, APIs, and servers around the clock and alerts you the moment something goes down. It checks as often as every 30 seconds and sends notifications through email, SMS, voice calls, and Slack so you never miss an outage.
Cost / License
- Free
- Proprietary
Application typeApplication types
Platforms
- Online
- United States
Kikloper is a lightweight monitoring platform for freelancers, developers, and agencies managing multiple websites.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Online
- Software as a Service (SaaS)
- United States
+2
AI-powered website, API & server monitoring with SSL alerts, EC2 control, and performance tracking. Starts free, built for developers & indie hackers.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Online
India
Centralizes real-time monitoring of servers, containers, Kubernetes clusters, SNMP devices, firewalls, storage, and databases in a user-friendly dashboard with alerts, multi-user support, setup wizard, REST API, customizations, mobile access, and backup options.
Cost / License
- Free
- Open Source (GPL-2.0)
Application typeApplication types
Platforms
- Online
- Self-Hosted
Türkiye
