A practical guide to HTTP status codes for uptime monitoring. What each code means, which ones matter most, common gotchas, and how to configure your monitors correctly.
The uptime percentage formula, a complete nines reference table, what each level actually requires, and how to use monitoring data for SLA compliance.
Everything you need to know about uptime monitoring — how it works, what to monitor, types of checks, alert channels, key metrics, and how to choose the right tool.
A step-by-step guide to monitoring your website's uptime with CronAlert. Create your first monitor, configure alerts, and start getting notified when your site goes down.
Set up uptime monitoring directly from your terminal. One command to install, natural language to manage monitors.
Manage your monitors through a conversational interface. Ask Claude to check uptime, create monitors, and investigate incidents.
Monitor your sites without leaving your editor. Create monitors, check status, and handle incidents from Cursor's Composer.
Give Cascade the power to manage your uptime monitoring. Two setup methods, eleven tools, zero context switching.
Create a public status page with 90-day uptime history, incident tracking, and an Atom feed. Free on all CronAlert plans.
CronAlert automatically detects SSL certificate errors during every check. No extra config needed — just monitor any HTTPS URL.
Catch silent cron job failures. Your tasks ping CronAlert on success — no ping means an alert fires instantly.
Check your sites from 5 regions simultaneously. Catch CDN issues, regional outages, and geo-routing bugs that single-location checks miss.
Go beyond keyword checks. Monitor for content changes via SHA-256 hashing, alert when pages go stale, and match response bodies against regex patterns.
A 200 OK doesn't mean everything is fine. Keyword monitoring checks response bodies for expected or unwanted content.
Silence alerts during planned downtime. Checks keep running, but no alerts fire until the maintenance window ends.
Automate monitor creation, pull uptime stats, and integrate with CI/CD using CronAlert's REST API. Full curl examples included.
Share monitors, alerts, and status pages with your team. Roles, invites, and audit logging for collaborative monitoring.
Calculate what website downtime actually costs your business. Revenue loss formulas, industry benchmarks, hidden costs, and how faster alerting reduces the impact.
Compare CronAlert (hosted) and Uptime Kuma (self-hosted). Feature comparison, total cost of ownership, setup time, and when to choose each approach.
E-commerce downtime costs real money every minute. Learn what to monitor, how to set up alerts, and how to minimize revenue loss from outages.
The 8 endpoints every SaaS should monitor, monitoring strategy by growth stage, and alert routing for SaaS teams.
Monitor your WordPress site's uptime, login page, REST API, and WooCommerce checkout. Catch plugin conflicts, database timeouts, and hosting issues before your visitors do.
Step-by-step guide to migrating your monitors from UptimeRobot to CronAlert. Export your monitors, map settings, and switch in under 10 minutes.
Monitor your Kubernetes services from the outside. Catch ingress misconfigurations, certificate errors, and routing failures that internal probes miss.
Automate monitor creation on every deploy. GitHub Actions, GitLab CI, and generic curl examples for managing monitors as code.
Webhook endpoints fail silently. Learn how to monitor your webhook receivers for availability, response time, and correctness with practical examples.
Monitor REST APIs, GraphQL endpoints, and webhooks. Set up authenticated checks, response body validation, and multi-region API monitoring.
A practical incident response playbook for teams of 1-10 engineers. Triage, communicate, fix, and learn -- without enterprise overhead or 50-page runbooks.
Route CronAlert downtime alerts to PagerDuty for on-call escalation. Use webhook alert channels to trigger PagerDuty incidents automatically.
Get instant Microsoft Teams notifications when your sites go down. Set up incoming webhooks and receive formatted Adaptive Cards with downtime details.
Get instant Telegram notifications when your sites go down. Create a bot, connect it to CronAlert, and receive formatted downtime alerts in any chat or group.
Get instant Slack notifications when your sites go down. Rich Block Kit messages with status, URL, error, and region details.
Get color-coded Discord embeds when your sites go down. Free on all plans, set up in under two minutes.
Health check patterns, dependency monitoring, and why external uptime checks complement service mesh observability in microservices architectures.
Practical strategies to cut alert noise: consecutive-check verification, maintenance windows, escalation policies, and channel routing.
Expose a /healthz endpoint that checks database connectivity, then monitor it externally. Code examples for Node.js, Python, and Go, plus what not to put in a health check.
The difference between synthetic monitoring and RUM, when each is enough on its own, and why most production apps need both for complete observability.
A detailed comparison of CronAlert and Better Stack for uptime monitoring. Features, pricing, and when to choose each tool.
Monitor serverless functions for cold starts, timeouts, and silent failures. Health check patterns for AWS Lambda, Cloudflare Workers, and other FaaS platforms.
Monitor your Cloudflare Workers, Pages sites, and D1 databases for uptime. Catch deploy failures, CPU limits, binding errors, and edge network issues.
An honest comparison of free uptime monitoring tools in 2026. CronAlert, UptimeRobot, Uptime Kuma, Better Stack, Hetrix Tools, and more -- what you actually get for free.
Organize monitors by client, set up per-client status pages, route alerts to the right team, and scale from 10 to 500 sites.
UptimeRobot alerts for outages that never happened? Here's why UptimeRobot false positives happen — single-region checks, no consecutive retry defaults, WAF conflicts — and how to stop them.
GraphQL endpoints fail in ways REST monitors cannot detect — every response is a 200 OK, errors live in the body, and a single POST exposes hundreds of query paths. Here's how to monitor GraphQL APIs correctly.
Next.js on Vercel has specific failure modes — cold starts on Serverless Functions, ISR revalidation bugs, Edge runtime limits, misrouted middleware. Here's what to monitor and how to catch outages before users do.
Most outages come from the same ten causes: DNS, expired certs, deploy bugs, database overload, third-party dependencies, DDoS, cache misconfigurations, domain expiry, hosting issues, and traffic spikes. Here's how to prevent each.
Email is the universal fallback channel for uptime alerts — every team has it, every tool supports it. But it has latency, deliverability, and noise problems. Here's how to set up email alerts correctly and when to use email versus other channels.
Internal tools fail silently because nobody is watching. Admin panels, employee dashboards, and partner portals have low traffic and high blast radius when they break. Here's how to monitor them externally — including auth-protected pages — without exposing them to the internet.
Your uptime is capped by your dependencies'. When Stripe is down, checkout breaks. When Twilio is down, 2FA breaks. Here's how to monitor third-party dependencies so you know about their outages before your customers tell you.
False positives train you to ignore real alerts. See how consecutive-check verification, multi-region quorum, and Cloudflare's edge network keep CronAlert alerts trustworthy.
A pragmatic uptime monitoring checklist for startups at pre-launch, launch, and post-launch. What to monitor, what to skip, and how much to spend at each stage.
Turn uptime monitoring data into quarterly SLA reports. Export check results, calculate compliance, handle maintenance windows, and satisfy enterprise customers.
Get instant downtime alerts on iOS. Install CronAlert as a PWA and enable push notifications — no App Store needed.
Get instant downtime alerts on your Android phone. Works in Chrome, Edge, and Firefox — no app install required.
Get native macOS notifications when your sites go down. Works in Chrome, Safari, Firefox, and Edge.
Get desktop notifications in Windows Action Center when your sites go down. Works in Chrome, Edge, and Firefox.
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