Credit Card Validator

Use the Credit Card Validator to check if any Credit Card number is valid. Enter the Card Number below and click on the "Validate Card" button.

Check your credit card number

  • Visa
  • Mastercard
  • American Express
  • Discover
  • JCB
  • Diners Club

Example credit card numbers

Credit Card Type Credit Card Number
American Express 371449635398431
Diners Club 30569309025904
Discover 6011111111111117
JCB 3530111333300000
MasterCard 5555555555554444
Visa 4111111111111111

Passed Validation Failed

Luhn Algorithm Check

We will check your number against the Luhn Algorithm to see if it is a valid credit card number.

Major Industry Identifier

The first digit of a credit card number represent the category of entity which issued the card.

Issuer identification number

The first six digits of a card number identify the institution that issued the card to the card holder.

Personal Account Number

Digits 7 to final number minus 1 (the last is the checksum) indicate the individual account identifier.

About Credit Card Validator

Credit card validation is the process of validating the authenticity of a credit card. Due to the increase in fraudulent activities, there is a need for business owners and professionals to double-check the validity of their customers' and clients' credit cards.

With the help of Seotoolsaudit online credit card validator, authentication of credit cards and credit card numbers has been made easy. Read on to learn more about our credit card validator, its features, benefits, and how to use it.

What is a Credit Card Validator?

A credit card validator is an online tool that authenticates the legitimacy of a credit card number.

Benefits and Features of our Credit Card Validator


Unlike some online credit card validators that require a membership fee or app download, the Seotoolsaudit credit card validator authenticates a credit card number in seconds with just a good internet connection.

Validates Customer's Finances

To avoid possible fraud and transaction errors, verifying the legitimacy of a credit card makes it easier to build trust with a customer or prospective client.

Secures Business Finance

The easier it is to ascertain customers' credit cards, the more assurance you have for getting the payment for your goods and services.

Luhn Algorithm Check

The Luhn Algorithm subjects the credit card number to a series of computations, sums up the results, and checks whether the resulting number matches the expected result. If it matches, then the credit number is valid. If not, the credit card is deemed invalid, showing that the user made an error when inputting the number, so we will check your number against the Luhn Algorithm to ascertain your credit card number is valid.

Major Industry Identifier

The first digit of a credit card number represents the category of the entity that issued the card. Our credit card validator identifies what industry the credit card belongs to.
Issuer Identification Number

The first six digits of a card number identify the institution that issued the card to the cardholder. When you input a valid credit card number, our credit card validator identifies the credit card issuer.

Personal Account Number

The account details of the credit card number owner get identified and authenticated by our credit card validator.

How to use our Credit Card Validator?

To use the Seotoolsaudit Credit Card Validator,

  1. Navigate to our credit card validator page
  2. Input the credit card number in the provided box
  3. Click the validate credit card button.

If the credit card number entered is valid, our validator tool will register the Luhm Algorithm, and identify the card’s industry, the card issuer, and the card holder’s account details. However, if you have entered an invalid credit card number, it will indicate failure with no records to show.


If you and your business have been incurring losses due to invalid credit cards, you will need the Seotoolsaudit credit card validator. It is free, easy to use, validates your customers' credit card, and secures your finances.

Frequently Asked Questions

What is a credit card number?

The long number engraved on the front of your credit card is a credit card number.

How do I check if a credit card is valid?

Use the Seotoolsaudit credit card validator, it checks if the credit card is valid or not.

Do I need to download a credit card validator app?

No. Simply navigate to the credit card validator page to validate any credit card number in seconds.

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