Technical Definition of Website Monitoring
Website monitoring is the continuous process of auditing website availability, response speeds, and server health from remote client environments to ensure end-users can access digital resources without error. It acts as an automated reliability check, simulating visitor traffic in the background to detect outages, DNS routing failures, load balancer crashes, or content defacement.
Uptime is generally computed as a percentage: the amount of time a website is fully operational divided by total elapsed time. For production sites, standard compliance targets require 99.99% availability, which allows for under 5 minutes of unplanned downtime per year.
Key Check Metrics
- HTTP Status Code: Ensuring requests return expected status codes (e.g. 200 OK).
- TCP Handshake Time: Measuring connection speeds at the network level.
- SSL Certificate Expiration: Auditing trust chain integrity before certificates expire.
- Page Content Audits: Checking for specific keywords to detect database connection failures or page errors.