Useful articles on domains, hosting and websites
DNS Failover technology automatically routes users to a backup server when the primary one fails. It is built on a monitoring system and properly tune
Anycast DNS lets a single IP address be served by many servers around the world, and the user's query is automatically routed to the closest one. This
GeoDNS technology returns a different IP depending on the user's geography. A core tool for CDNs, load balancing and regional content strategies.
DoH sends DNS queries over HTTPS and hides them from the ISP and other observers. Explained with Cloudflare 1.1.1.1 and Google Public DNS examples.
CAA record lets the domain owner declare via DNS which Certificate Authorities (CA) are allowed to issue SSL. A defense against phishing and unauthori
SRV record announces through DNS which server provides which service on which port. Explained with Microsoft 365, SIP telephony and XMPP examples.
PTR record maps an IP address to a domain name. Learn why it is critical for email server reputation and spam filters, with real Sayt.uz numbers.
The SOA (Start of Authority) record holds the administrative data for a DNS zone — primary NS, admin email, serial number and synchronization timers.
An NS record points at the DNS servers responsible for a domain. Here is how registrar NS, hosting NS, propagation and glue work in practice.