FAQ
Answers to common questions about Doomsday Checker.
Is the Doomsday risk real?
The 72-hour scenario is a hypothetical preparedness walkthrough. The postcode result also shows information from real geographic datasets.
Where does the data come from?
See the data sources for each dataset and its coverage.
How often is the data updated?
Weather warnings are fetched when a result opens. Census and transport information use published datasets.
Can I check any UK postcode?
The production checker covers active postcodes in Great Britain. Dataset coverage varies by location.
What does Not Rated mean?
A grade requires usable results from all three checks. See the grading rules.