NerdTools

Fast, free online tools for sysadmins, developers, and nerds.

Uptime Monitoring

What are check locations and which should I use?

NerdTools monitors your website from multiple geographic locations around the world to provide accurate availability data.

Available locations

  • Amsterdam, Netherlands
  • Chicago, USA
  • Frankfurt, Germany
  • London, UK
  • Los Angeles, USA
  • San Jose, USA

Choosing a location

Any location (recommended) — Let NerdTools automatically select the best available location for each check. This provides good coverage and redundancy.

Specific location — Choose a location closest to your target audience or server location if you want consistent measurements from one region.

Why multiple locations matter

Checking from multiple locations helps:

  • Detect regional outages affecting only certain areas
  • Reduce false positives from temporary network issues
  • Provide more accurate global availability data
  • Verify CDN and geographic load balancing
Back to all articles