Secure payment

The website uses information security techniques generally accepted in the industry, such as firewalls, access control procedures and cryptographic mechanisms, all with the aim of preventing unauthorised access to data and possible data theft. To achieve these purposes, the user/customer agrees that the provider obtains data for the purpose of authentication of access controls.

We offer 100% secure payment

In we guarantee that each of the transactions made is 100% secure.

All purchases you make on our website are guaranteed by the secure server of the bank Banco Santander, so that your data is protected and encrypted by the most advanced technology, so it is much safer to send your data to the Secure Server of the banks than to pay at a gas station, restaurant, etc…

What happens when I send my details online?

When you make the purchase and choose the payment method, when you click on the Payment by card button, the website connects to the Secure Server, from that moment you enter the secure area and enter your bank details in the bank’s Secure Server, which ensures that the transaction meets the security requirements and carries out the transaction, after which the confirmation of the transaction appears and the buyer returns to the shop.

Could someone know the encryption key?

Every time a user connects to a secure server, the server generates a random key for the session it is establishing with the user, while the client’s browser generates another key, also random, which is used to identify itself to the server.

If at the moment a secure connection is established, other users connect to the server, new keys are generated again to identify the participants in the connection.

The Secure Server ensures that the generated keys never match while multiple simultaneous connections are established.

How do I know that a secure connection has actually been established?
You can tell if you have connected to a Secure Server if the URL starts with “https://”. In addition, the most commonly used browsers indicate this graphically by means of an icon that shows the user whether or not there is a secure connection (for example, in the case of Internet Explorer, the yellow closed padlock appears).

What security protocol is used in transmissions?

Connections to the Secure Server use the latest specifications of the standard network security protocol: SSL.

Which financial institution guarantees the security of my transactions?
When you make a purchase with a debit or credit card in our Cuerdas Valero shop, a connection is established with the Secure Server of Banco Santander, which provides all its experience and technological infrastructure to securely and efficiently support all electronic transactions made on When a payment request arrives at Banco Santander’s Secure Server, it is responsible for managing the authorisation or denial, in real time, of the payment for that purchase after verifying that all the details are correct for the payment to be made.

Where can you get more information?

If you would like further information on security issues, you can consult the information provided by Banco Santander on its website,

3D Secure
Banco Santander’s gateway is compatible with the new secure internet payment protocols introduced by the Visa and Mastercard brands.

3D Secure is the most secure credit card payment system because it is able to authenticate the cardholder, guaranteeing that the customer using a card number is really the cardholder. This is done by means of a secret code that your own bank will provide you with and that only you will know.

In most cases, this code can be requested on-line. For more information you can consult your bank’s website or contact your bank.

Very important

Our website only accepts payment with credit cards that are secured (3D Secure), so you will need a special key to buy online that must be provided by the financial institution issuing the card, mentioning the need to have the virtual key of 3D Secure. We recommend using this 3D

Secure system, you ensure that you are the only one who can make purchases with the card, making it impossible to use it fraudulently on the internet, guaranteeing the total security of the transactions.

How do we protect your credit card payment? uses a server based on one of the most reliable secure payment systems on the Internet: the SSL (Secure Socked Layer) security protocol. (For more information, please visit

All your personal data and information you transmit to us travels in encrypted form over the network, and is protected and encrypted before being sent to us for processing.

For Visa and Mastercard payment only CES (Secure Electronic Commerce) transactions will be accepted. After verifying that the card is CES compliant, the system will contact the issuing bank for the buyer to authorise the purchase. Once the bank confirms the authenticity, the card will be charged.

Otherwise the order will be cancelled.

The payment gateway we use for your credit card payment is Banco Santander, which encrypts your data using the SSL 256-bit protocol. Our system does not store any bank details of your credit card, but goes directly to the bank’s Ecommerce POS (Point of Sale Terminal).

What is SSL?

The latest advances in browser and server technology have made it easier to use web services without worrying about electronic fraud. One example is Secure Sockets Layer (SSL), developed by Netscape, a security protocol submitted to the Internet Engineering Task Force (IETF) as an Internet draft. Basically, the protocol allows the browser and the server of a web session to authenticate each other and to protect the information that will subsequently flow between the two points. By using cryptographic techniques such as encryption and digital signature, the protocol:

Allows web browsers and web servers to authenticate each other.
Allows website owners to control access to particular servers, directories, files or services.
It allows sensitive information (such as credit card numbers) to be shared between the browser and the server, keeping it inaccessible to third parties.
Ensures that data exchanged by the browser is secure.