🔄 Validators

PTR Record Format Validator

Check whether a PTR record is well-formed (in-addr.arpa for IPv4, ip6.arpa for IPv6) and generate the expected reverse name.

IP (IPv4 ou IPv6) PTR record para validar (opcional)

Related Tools

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CPF Validator

Validate Brazilian CPF numbers instantly using the official algorithm. Useful for testing document validation in applications. No data sent to servers.

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Batch CPF Validator

Validate a list of CPFs (one per line) and see which are valid and which are not. No data sent to servers.

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Batch CNPJ Validator

Validate a list of CNPJs (one per line) with a summary of valid, invalid and total. No data sent to servers.