Table of contents
This page describes what to do in case of an Icinga alert. For more information you could search the govuk-puppet repo for the source of the alert

Pingdom homepage check

Pingdom monitors externally (from ~10 locations in Europe and America) that it can connect to https://www.gov.uk/. If this fails it could indicate that DNS for www.gov.uk is not working, our CDN has failed or GOV.UK (particularly the Frontend application) and all the static mirrors are inaccessible, which would probably qualify as a major incident.

If you can confirm that GOV.UK is indeed globally inaccessible, then this is probably cause to first alert other people who may be able to help, then start troubleshooting to see if you can narrow down the failure.

This page is owned by #2ndline and needs to be reviewed