Office for National Statistics (ONS)
What it publishes
The UK's national statistics: inflation (CPI, CPIH, RPI), GDP, employment and unemployment, wages, population, migration, deaths, crime survey, public sector finances, trade, census for England and Wales.
How often
Daily on weekdays, to a published release calendar (9:30am, some 7am). It has a documented data API.
Checking its records
Each release page states its accreditation. Use the dataset version URL, not the 'latest' URL, so the receipt does not change underneath you.
Go to Office for National Statistics (ONS)
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