Four checks. One standard of proof.
Every result points to the official source it came from and shows when it was checked — so you can rely on it, and show your work.
V
VAT & Company ID
Know a customer's VAT ID is valid before you invoice — with the register's answer on file.
Learn more →R
Short-term rental rules
See registration duties, night limits and tourist tax for a city, straight from the municipality.
Learn more →A
Accessibility scan
Find the WCAG issues on your website that matter most, ahead of the European Accessibility Act.
Learn more →C
Climate & heat risk
Understand heat and flood exposure for an address, using official hazard maps.
Learn more →How it works
1
Ask
Enter a VAT number, a city, a website or an address.
2
We check the official source
regirail queries the public register or authority directly — not a copy of a copy.
3
Keep the proof
You get the answer with the source link, the check date and a confidence note.