Certificate authority is a third party that validates a company or a website for its authenticity. It is a third party or organization that authenticates another company or organization.
After designing a website, the website developer must ensure that they authenticate their website. If the site designed by the web site design is not validated, not many users will trust the site to do any transaction. There are many authorities that provide a digital certificate to the applicants. If there are website designers who apply for a digital certificate for their website, the certificate authority is obliged to ensure that the applicant is not a fake one. The CA has to check the license of the website designers. They have to check the employment details of them. They have to ensure that all the details provided by the applicants are true and nothing is forged. If at all the authority feels that there is something unusual about the website designers, they have all the rights to deny the certificate to the applicants.
As a matter of fact, if a certificate authority issues false certificates to the website designers, they can be held responsible for any menace caused by those website designers. The digital certificate issued by the authority should also contain details about the website designers like his name, license number, company number, the digital signature of the website designers and another important entity called the public key of the web designers.
Whenever you want to send any sensitive information to some other website, you have to take care that your message is not intercepted by any intruder. This requires sending your message in encrypted form so even if there is some intrusion, the hacker will not be able to decode the message. Data encryption can be done using the public-private key phenomenon. To send the message, you encrypt the data using the public key of the web site builder whom you want to send the message. To obtain the public key, you can refer to his digital certificate. If the certificate itself is a fake one, the public key also is fake one. Hence, you are dealing with fraudulent users. This is where the duty of the certificate authority is so indispensable.
Before dealing with any website, you as website designers must be very careful to check the certificate of that web owner. It is also advisable that you check the authenticity of the certificate authority. This can be done by verifying their digital signature and digital certificates. Whenever you are sending any information on the internet, never trust anyone only by his word. If you come across anyone who does not have a certificate from a valid or renowned authority, it is best that you stay aloof from such dealers. And also to ensure that people trust your ecommerce site, get your site verified by an authority.