Minimize the use of SSL certificates


Only use SSL certificates for sections and services where they are truly needed. This is because encrypting all of the HTTP data stream requires a large number of CPU power. And so encrypting a page’s static elements such as images (except the content) uses up considerable resources while presenting no benefits.

In the case of an online customer portal incorporating a product/service catalogue:
- Only use HTTPS for sensitive data - Display the catalogue using HTTP

This best practice should only be applied if it is coherent with your project's specifications.
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