The ESTA is mainly required in order to make the security permission stronger for the citizens traveling from the countries under VWP (Visa Waiver Program). The Electronic System for Travel Authorization enhances the security protocols for the visa-free purpose of visits made by crossing the international borders. The citizens of a Visa Waiver Program (VWP) country are permitted to travel internationally even if they do not possess a valid passport but must pass all the rules and regulations that are subjected to the ESTA program and must possess a valid approval prior to the travel o the country that they desire. There are various third-party vendors and websites along with the official website of the United States Customs and Border Protection and Department of Homeland Security through which an individual can apply for the ESTA and get the travel authorization done in a short span of time. These systems are completely secure and publicly safe for use and availing the facilities that are served.
On entering the websites that authenticate and provide authorization for the esta cbp dhs gov , the fees need to be paid and on successfully completing the steps, the submitted application is processed online through screening in order to determine the eligibility norms and authorizing the individual for granting them with the permission to travel internationally and checking their eligibility for the country of residence under the VWP (Visa Waiver Program). There is an automatic response that is provided by the system and generated within a short span of time, on approval, an electronic verification is conducted before boarding with the customs officials in order to check the validity and verify the eligibility for traveling.
The ESTA is completely automated and verifies the purpose of travel along with the passing over of decisions for the travel authorization for a person under VWP to travel abroad.