Spotify Checker does not work as well as it is because it is blocked by Spotify because of excessive use. Sorry. We are working to fix.
Credit Card Validator - CC Valid Checker
We also have a valid credit card checker which you can check credit card number online simply enter the credit card validate the generated credit card values and check their major industry identifier and Personal Account Number of PAN. All you need to do is enter the credit card number on the field where it asks and click on the green button to check on it.