Encrypting network traffic with using a TLS certificate and the use of a CDN or DDOS protection service, improves the security and availability of a website.

Certificate types
The distribution of certificate types
Certificate problems
The most common certificate problems
Top certificate authorities
Top 10 certificate authorities for all types of certificates
Top Domain Validated TLS certificate authorities
Top 10 TLS certificate authorities for Domain Validated certificates
CDN en DDOS protection services, the chart uses a logarithmic scale
CDN and DDOS protection service usage