The Curious Engineer

All blogs / DevOps / SRE / infrastructure

OnlineOrNot

onlineornot.com

OnlineOrNot monitors your websites, APIs, and cron jobs, and sends you immediate alerts when things go wrong via Email, SMS, Slack, Telegram, PagerDuty, and more.

DevOps / SRE / infrastructure

’21’22’23’24’25’26
Posts
96 from 26 Feb 2021 to 14 Oct 2026
Posting
monthly (22 in the last year)
Kind
company blog
Feed
https://onlineornot.com/atom.xml

2026 20

  1. Cron jobs: the guide
  2. Changelog
  3. OnlineOrNot updates from June through August 2026
  4. Top UptimeRobot Competitors & Alternatives in 2026: Feature & Pricing Comparison
  5. Bastion host security: what to check before replacing yours
  6. Runbook automation: when to script it and when to keep the commands
  7. 7 best Atlassian Statuspage alternatives for 2026
  8. 10 best status page tools for 2026 (hosted and open source)
  9. OnlineOrNot updates from May 2026
  10. Best Pingdom alternatives for 2026 (free and paid)
  11. Best UptimeRobot alternatives for 2026 (free and paid)
  12. 10 Best Uptime Monitoring Tools for 2026
  13. 8 Best Synthetic Monitoring Tools for 2026
  14. API monitoring: A practical guide
  15. Cron job monitoring: How to know when your scheduled tasks fail
  16. MTTR for software teams: meaning, formula, and examples
  17. OnlineOrNot updates from February 2026
  18. Website monitoring: What it is and why you need it
  19. OnlineOrNot updates from January 2026
  20. Looking back on 2025, and what's next

2025 10

  1. OnlineOrNot's lessons from Cloudflare's outage on 2025-11-18
  2. OnlineOrNot updates from August 2025
  3. OnlineOrNot updates from June/July 2025
  4. OnlineOrNot updates from May 2025
  5. OnlineOrNot updates from April 2025
  6. How to get alerted when your EC2 instance shuts down
  7. OnlineOrNot updates from 2025 Q1
  8. Monitoring your web application as a small team
  9. What is the curl command?
  10. 2024, and what's next

2024 11

  1. How OnlineOrNot more than halved its AWS bill
  2. OnlineOrNot updates from September 2024
  3. OnlineOrNot updates from August 2024
  4. OnlineOrNot updates from June/July 2024
  5. OnlineOrNot updates from May 2024
  6. OnlineOrNot updates from April 2024
  7. OnlineOrNot updates from March 2024
  8. Improving your on-call schedule with runbooks
  9. How to check if a website is online
  10. OnlineOrNot updates from January 2024
  11. I built my HTTP API docs from scratch

2023 15

  1. How to get your first ten customers
  2. OnlineOrNot updates from November 2023
  3. OnlineOrNot updates from September
  4. How to monitor your uptime with OnlineOrNot
  5. Scaling AWS Lambda and Postgres to thousands of simultaneous uptime checks
  6. Guidelines for updating WordPress and its plugins, safely.
  7. Domain expiry: How to prevent your domain from expiring
  8. Domain expiry: How to prevent your domain from expiringAn expired domain means your website goes down. Here is how to make sure it never happens to you.
  9. Our lessons from the latest AWS us-east-1 outage
  10. No, the average cost of downtime is not $5600 per minute
  11. OnlineOrNot updates from May
  12. On writing better error messages
  13. Monitoring our monitoring
  14. Announcing OnlineOrNot's open-source uptime check CLI
  15. What I learned running a SaaS for a second year

2022 10

  1. Saving your team from alert fatigue
  2. The unreasonable effectiveness of shipping every day
  3. How I accidentally told 19k people Hacker News was down
  4. Postmortem Templates
  5. Improving your team's on-call experience
  6. On moving over a million uptime checks per week onto fly.io
  7. Guidelines for writing better runbooks
  8. Writing your first runbooks
  9. What I learned running a SaaS for a year
  10. Communicating to Users During Incidents

2021 13

  1. What we learned from AWS's us-east-1 outage
  2. Dealing with Noisy Error Monitoring
  3. Getting over on-call anxiety
  4. Self-hosting vs Managed Services: Deciding how to host your database
  5. What the Fastly outage can teach us about writing error messages
  6. Picking a domain name, and which country to host your website from
  7. How to Improve First Contentful Paint
  8. Why VPS Plans are Cheaper than Shared Hosting
  9. Understanding the Page Speed Metrics in Google Lighthouse
  10. Ten Ways to Improve WordPress Page Speed
  11. Guidelines for picking where to send monitoring alerts
  12. Building a SaaS in one week: How I built OnlineOrNot
  13. Migrating between WordPress hosts without downtime

Undated 17

  1. Features
  2. API Monitoring
  3. Cron Job Monitoring
  4. Heartbeat Monitoring
  5. Website Monitoring
  6. Synthetic monitoring
  7. Status Pages
  8. Pricing
  9. Schedule a demo
  10. Community
  11. OnlineOrNot alternatives
  12. Is it down? Website checker
  13. SLA Uptime Calculator
  14. Incident Management Best Practices
  15. Curl Generator
  16. Terms of Service
  17. Create an uptime check