How the documentation is organised
The chapters follow the path through the product: first get domains into the account, then understand what the checks report, then route the alerts to the right channels, then involve clients, connect providers and organise the team. Every page has a table of contents at the side and links to the neighbouring chapters.
Numbers such as intervals, thresholds and limits come from the configuration of the running version. Where a behaviour depends on the plan, it says so; the overview of all plans is on the pricing page.