Cache hit ratio is the share of requests a CDN or cache answers from stored copies instead of the origin, a key…
A ccTLD is a country code top-level domain such as .de or .jp, a two-letter domain name ending reserved for a country…
A CDN is a geographically distributed network of caching servers that delivers web content from locations close to users to cut latency…
A Certificate Authority is a trusted organization that verifies identities and issues signed digital certificates binding public keys to domain names.
A certificate chain is the ordered sequence of X.509 certificates that links a server certificate through intermediates to a trusted root authority.
CIDR, or Classless Inter-Domain Routing, describes IP address blocks with variable-length prefixes such as /24 and lets routers aggregate routes efficiently.
A CNAME is a DNS record that makes one domain name an alias of another, so resolvers follow it to the canonical…