Postcode → address sanity check
Check postcode, city, street and house number for format issues and suspicious input. Useful for exports and fulfilment.
Input
Spaces are ignored. Country is detected heuristically (NL/BE/DE).
Result
No address database: this is a format + sanity check.
Veelgestelde vragen
Does this confirm an address really exists?
No. Without an external dataset this is a format/sanity check only. Real verification requires an address database/API.
Which countries are supported?
Basic patterns for NL/BE/DE are detected. Other formats are marked as “unknown” with a warning.