Instagram utilizes a strategy of changing its TLS certificates daily, opting for certificates that are slightly more than a week from expiration. This approach seems to aim for reducing certificate lifetime, although it raises questions about security regarding key management. The findings reveal that both the main domain and its subdomain have separate certificates, despite the potential for a wildcard certificate to cover subdomains.

AWS Certificate Manager has announced the release of exportable TLS certificates, allowing users to manage and transfer their certificates more easily. This feature is primarily aimed at enhancing flexibility and usability for developers and system administrators. Overall, the change is viewed positively within the community.

The CA/Browser Forum has voted to reduce the maximum lifespan of SSL/TLS certificates to 47 days by March 15, 2029, a significant decrease from the current 398 days. This change aims to enhance digital security by limiting the potential abuse of compromised certificates, though it is expected to increase the workload for IT administrators who must adapt to more frequent renewals.