247Monitor blog
Uptime monitoring guides and resources.
Practical guidance on uptime monitoring, alerting, status pages, APIs, scheduled jobs and synthetic browser checks.
15 articles
What is cron job / heartbeat monitoring?
Cron job monitoring inverts the usual model: the job checks in after every run, and silence raises the alarm. How heartbeats work and which jobs need one.
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More articles
What is SSL certificate monitoring?
SSL certificate monitoring keeps a live countdown to every certificate's expiry and verifies the handshake visitors depend on. What it checks and why it matters.
27 July 2026
How to monitor a WordPress site's uptime
Watch a WordPress site from the outside: keyword checks that catch database errors hiding behind a 200, heartbeats for wp-cron jobs, and SSL and domain expiry.
21 July 2026
How to monitor an API for downtime
API downtime monitoring in practice: which endpoints to watch, auth without leaking secrets, assertions beyond 200 OK, and alerts that only fire when it's real.
14 July 2026
How to set up a status page (best practices)
Set up a status page in about ten minutes: pick the right components, name them for users, choose incident detail, add your domain, and launch it properly.
6 July 2026
What is a status page (and why you need one)?
A status page is a public page that shows whether your service is up, degraded or down, and what you're doing about it. What good ones show and why they pay off.
27 June 2026
How to monitor SSL expiry (and never get caught out)
Certificate lifetimes are shrinking to 47 days by 2029. How to monitor SSL expiry, pick warning thresholds, and catch the auto-renewal that silently failed.
19 June 2026
What is a good uptime percentage? 99.9% vs 99.99% explained
A good uptime target is usually 99.9%, but it depends what you run. What each 'nine' costs in real downtime, and how to pick a target you can keep.
11 June 2026
Free status page tools: the 7 best in 2026
The best free status page tools and software in 2026, compared by monitoring, subscribers, custom domains and branding limits. Verified August 2026.
11 June 2026
What is synthetic monitoring? A plain-English guide
Synthetic monitoring tests your site like a user, from a simple ping to a real browser walking through checkout, before customers hit the problem.
6 June 2026
What is API monitoring? (and how to do it)
API monitoring continuously calls your APIs to check they're reachable, fast and returning the right data. What to check, the metrics that matter, and setup.
2 June 2026
How to monitor cron jobs and scheduled tasks
Cron jobs fail silently. How to monitor cron, systemd timers and Kubernetes CronJobs with heartbeat checks that catch the run that never happened.
29 May 2026
Free uptime monitoring: the 6 best free tools in 2026
The best free uptime monitor software in 2026, compared by check interval, monitor limits, alerts, status pages and free server monitoring. Verified August 2026.
25 May 2026
How to monitor website uptime: a step-by-step guide
A step-by-step guide to website uptime monitoring: what to watch, checking from multiple regions, and the alert thresholds that stop false alarms.
20 May 2026
What is uptime monitoring? A beginner's guide
Uptime monitoring automatically checks that your website, API or service is working, and alerts you the moment it isn't. How it works and what to watch.
14 May 2026
What we write about
Browse guides by topic.
Explainer
Clear answers to common monitoring and reliability questions.
Guide
Step-by-step instructions for setting up useful monitoring.
Comparison
Feature, pricing and best-fit comparisons with source links.
Data
What the numbers say about outages and reliability.