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siret

Validates a SIRET (Système d'Identification du Répertoire des Établissements) number, the French establishment identifier.

Options

OptionTypeDefaultDescription
messagestringlocale defaultCustom error message

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Valid values

ValueNotes
"73207531200045"SIRET of a Total establishment

Invalid values

ValueReason
"73207531200046"Fails Luhn checksum
"1234567890123"Only 13 digits instead of 14

Notes

  • Empty string ("") always returns valid: true. Combine with notEmpty to require a value.
  • SIRET is 14 digits: the 9-digit SIREN + 5-digit establishment code (NIC). Validated using the Luhn algorithm.

Released under the MIT License.