Data encryption: SSL certificates encrypt data transmitted between the user's browser and the server, preventing unauthorized access or interception.

Improved trust: Websites with SSL certificates display a padlock icon in the browser's address bar, indicating a secure connection, which boosts user trust and confidence.

Compliance with security standards: SSL certificates help websites comply with security standards and regulations, such as the GDPR (General Data Protection Regulation) and PCI DSS (Payment Card Industry Data Security Standard).

SEO benefits: Google considers SSL encryption as a ranking factor, so websites with SSL certificates may receive a slight boost in search engine rankings.

Cost: Obtaining and renewing SSL certificates can incur additional costs, especially for websites with multiple subdomains or wildcard certificates.

Performance impact: SSL encryption can slightly increase the load time of web pages due to the encryption and decryption process, although modern servers and protocols have minimized this impact.

Compatibility issues: Older web browsers and devices may not fully support the latest SSL/TLS protocols or may display security warnings when accessing websites with SSL certificates.

Certificate management: Managing SSL certificates, including renewal, installation, and configuration, requires technical expertise and ongoing maintenance.