SSL (Secure Socket Layer) is should be used by all e-commerce websites to protect their user’s personal data, such as credit card numbers and addresses. It works by encrypting the traffic between the user’s web browser and the server, making sure it can’t be intercepted.
SSL certificates also ensure the integrity of the server that the user is connecting to, as the certificate should be signed by a Certification Authority (CA) which the user’s browser trusts, acting as a guarantor of the server’s integrity.
A SSL certificate can be self-signed, but using a self-signed certificate is not recommended outside of your development environment or private, internal network. This is because if the browser doesn’t trust the Certification Authority, it will display a warning which will scare most visitors away, particularly if they aren’t technical.
There are two kinds of SSL certificates. Both provide security to the communications between the server and the user’s computer.
There are quite a lot of options for where to purchase your standard SSL certificate from. Bear in mind that a lot of them will be resellers of the better-known brands.
StartCom are known as a free certification authority, and they absolutely do work, even if their website is a pain to use. They are recognised in all of the main browsers, however it is recommended that free certificates are only used for development and testing environments, however the Verified certificates could be used in production if you wish.
These certificates are from a well-known brand, and are quite cheap. You can purchase them for up to 5 years, and like most Certification Authorities, they claim to have 99% browser recognition.
These certificates are the cheapest of the ones that we have found. You can purchase them for up to 5 years, and if you purchase them for more than one year you get a discount. You can also put their "Site Seal" on your website.
There aren't as many options for extended SSL certificates, typically only the large Certification Authorities will offer these. They are also generally more expensive as the CA has to verify your identity to a higher level and so most sites cannot afford them and are forced to go with standard SSL certificates.
Prices and features are a guide only as they are subject to change. We do not guarantee or endorse the products/companies listed here is any way. Not all Certification Authorities are listed here, only a selection.
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