If customers tell you that your website is down, your monitoring started too late. Uptime monitoring checks a site from outside your hosting environment and alerts you when it becomes unreachable, slow or incorrect. A simple setup can separate a real outage from one user’s network problem and create a useful incident timeline.
What uptime monitoring should answer
- Can visitors resolve the domain?
- Does HTTPS connect with a valid certificate?
- Does the server return the expected HTTP status?
- Does the page contain the expected content?
- Are important ports, APIs and background tasks responding?
- Who receives the alert and what should they check first?
Choose the right check type
| Check | What it detects | What it may miss |
|---|---|---|
| HTTP/HTTPS | Reachability, status code and response time | A page that returns 200 but shows an error |
| Keyword/content | Whether expected page text is present | Problems outside the selected page |
| SSL certificate | Expiry and certificate errors | Application failures |
| DNS | Resolution and record changes | A broken application behind a correct IP |
| Port | Whether a service accepts connections | Whether the application is healthy |
| Heartbeat/cron | Whether a scheduled job reports back | Front-end availability |
Start with HTTPS checks for the homepage and one critical action such as login, checkout or an API health endpoint. Add SSL and DNS monitoring when the domain matters to revenue or support.
Do not alert on one weak signal
A single probe can fail because one monitoring location has a temporary routing problem. Where the tool supports it, confirm failures from more than one location or require a second failed check before paging someone. Balance speed against noise: an online store may need faster alerts than a personal portfolio.
Monitor what customers actually use
A green homepage does not prove that checkout works. Identify the smallest set of journeys that matter: home page, account login, payment callback, support portal or API. Avoid aggressive automated form submissions that create orders or spam; use safe health endpoints and read-only checks.
For SiteChai-hosted websites, choose a monitor that checks the public domain—not only the server IP—so DNS, SSL and the web application are included. See SiteChai web hosting when you need a practical hosting plan with SSL, backups and support.
Set useful alert routes
Send alerts to a channel that someone will actually see. A solo owner may use email plus a mobile notification. A team should define a primary person, a backup and an escalation delay. Test every route; an alerting system that was never tested is only a dashboard.
Alerts should include the affected URL, first failure time, status code or error, monitoring locations and a link to recent history. Avoid including passwords, private query strings or customer data.
Create a short incident checklist
- Confirm: Check from another network and monitoring location.
- Scope: Is it one page, the whole domain, email or the server?
- Check recent changes: Deployments, plugins, DNS, firewall and certificate renewals.
- Inspect layers: DNS, CDN, SSL, origin server, database and application logs.
- Communicate: Give users a factual update without guessing an ETA.
- Recover safely: Roll back the smallest known change or contact the provider.
- Verify: Wait for several successful checks and test the critical journey.
- Review: Record the cause, timeline and prevention action.
SiteChai customers can contact SiteChai support with the domain, UTC or Bangladesh time of the first alert, status code and a traceroute or screenshot when relevant. Never include a password in the ticket.
Handle planned maintenance correctly
For temporary planned downtime, Google recommends returning HTTP 503 Service Unavailable rather than serving an error page with 200 OK. A Retry-After header can indicate when service may resume. Do not leave a 503 response indefinitely; extended unavailability can lead search engines to remove URLs.
Pause or schedule monitoring maintenance windows so planned work does not create unnecessary pages, but keep a separate verification check for the expected maintenance response.
Measure more than a percentage
“99.9% uptime” is meaningful only with a defined time period, check interval and exclusions. Also track time to detect, time to acknowledge and time to recover. Review false alerts and missed incidents. The goal is faster, calmer recovery—not a decorative percentage.
Common monitoring mistakes
- Checking only the server IP and missing DNS or certificate failure
- Monitoring only the homepage
- Sending every alert to one unattended inbox
- Using a check interval that violates hosting or API limits
- Failing to test notifications
- Ignoring recovery alerts and repeated flapping
- Publishing an uptime claim without defining how it was calculated
Frequently asked questions
How often should I check a website?
Five minutes is a reasonable starting point for many small sites. Critical services may need shorter intervals, while low-priority pages can use longer checks.
Does uptime monitoring slow a website?
A normal lightweight HTTP check should have minimal impact. Avoid frequent full-browser tests or actions that create database writes unless the infrastructure is designed for them.
Can monitoring prevent downtime?
It cannot prevent every failure. It reduces detection time and provides evidence that helps you respond and improve.
Is a status page the same as monitoring?
No. Monitoring detects and records service state. A status page communicates known incidents and maintenance to users; the two work best together.
Sources: UptimeRobot’s monitoring-types guide and Google Search Central on planned downtime.