Oh Dear
The all-in-one monitoring tool for your entire website
Oh Dear is an all-in-one website monitoring software for one or multiple websites.
Use Oh Dear to check for downtime, broken pages and links, expired certificates and Lighthouse SEO.
Oh Dear can notify you for DNS record changes, domain renewals, scheduled cron jobs and application health.
Features
- Uptime monitoring: get alerted the moment your site goes down, with checks from multiple locations to rule out false alarms
- Broken links & mixed content: crawls your whole site and flags dead links and insecure assets before your visitors hit them
- Certificate health: tracks SSL/TLS expiration and certificate transparency, so a cert never silently expires on you
- Scheduled task (cron job) monitoring: know when a background job fails to run or runs late, not days later
- DNS monitoring: get notified the instant a DNS record changes
- Domain expiration alerts: never lose a domain to a missed renewal
- Lighthouse performance & SEO: automated scoring on every check to catch regressions after a deploy
- Application health checks: surface app-level problems your uptime check can't see
- Public status pages: a branded status page on your own domain to keep users informed during incidents
- Notifications everywhere: Slack, Discord, Telegram, email, SMS, webhooks, and more
Use Cases
- Agencies & freelancers monitoring every client site from one dashboard
- SaaS teams catching downtime and SSL expirations before customers report them
- Developers verifying cron jobs and scheduled tasks actually ran
- Teams running a public status page to stay transparent during outages
- Catching broken links and SEO/performance regressions right after a deploy
- Ops teams watching DNS and domain changes for accidental or unauthorized edits
Comments
The multi-location check to rule out false alarms is the detail that separates a real monitoring tool from a toy — false 'your site is down' pings at 2am are exactly how teams learn to ignore alerts entirely. Bundling broken-links + Lighthouse SEO with uptime is smart too, since those usually live in three separate tools. Genuine question on the cron/scheduled-job monitoring: do you support heartbeat-style checks (job pings you every X min, alert if a ping is missed), or is it focused on catching failures in jobs you've registered?
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Comments
The multi-location check to rule out false alarms is the detail that separates a real monitoring tool from a toy — false 'your site is down' pings at 2am are exactly how teams learn to ignore alerts entirely. Bundling broken-links + Lighthouse SEO with uptime is smart too, since those usually live in three separate tools. Genuine question on the cron/scheduled-job monitoring: do you support heartbeat-style checks (job pings you every X min, alert if a ping is missed), or is it focused on catching failures in jobs you've registered?
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