Duiadns!

No-IP allows you to create up to 3 free Dynamics DNS hosts for private use. You will need to register for a free account, and either update your IP address via their web interface or download their Windows client. Free DNS allows you to create up to 3 hosts on a set of domains provided by No-IP.com

Free DNS, Dynamic DNS, Static DNS services; 5 free shared hostnames, use anywhere; Unlimited number of domains per account (yes really);Free subdomain hosting, free domain hosting, free backup dns, reverse IPv6 DNS hosting (forward/reverse);Free URL redirection [web forwarding];20 free subdomains per domain, use on your own domains onlyINSTANTLY point yourname.afraid.org or yourname.com to any IP or URL;Dynamic DNS supported, several clients for Win32 and UNIX availableCurrently 86,232 other domains besides afraid.org in our shared domain pool;Round robin DNS supported (Multiple IP addresses for 1 hostname);IPv6 forward AND reverse (both .int and .arpa) supported. »

Duck DNS free dynamic DNS hosted on Amazon EC2.Duck DNS is a free service which will point a DNS (sub domains of duckdns.org) to an IP of your choice.

DNS-O-Matic (dnsomatic.com) provides you a free and easy way to announce your dynamic IP changes to multiple services with a single update.

nsupdate.info is a dynamic dns service.

Free DNS, Managed DNS and DDoS Protected DNS hosting with included web redirects, mail forwards and Round-Robin load balancing. Instant updates in Europe, North America, Asia, and Australia.

Dynu offers free dynamic DNS service for yourname.dynu.com and yourname.com. It has a simple API(update URL) and offers free update client software.Other features include+ IPV6 support+ web redirect(port 80 redirect, URL forwarding)+ subdomains+ MX record+ round robin DNS (multiple IP addresses for 1 hostname)+ offline settings(redirect to offline message or offline URL)+ custom DNS records(TXT, SPF,HINFO,SRV etc.)Sign up page: https://www.dynu.com/ControlPanel/AddDDNS

sftdyn - python dyndns/dynamic DNS server and updater for bind

Nubem Dynamic DNS - Free Dynamic DNS that relies on open standards.

IP-rekt is a free DDNS service that uses your browser to synchronize your dynamic IP with an address you can share. It was designed to be a quick and easy alternative to no-ip's basic DDNS service.

dd-ns.org is an ideal service for video surveillance, IP cameras and remote control, excellent for ftp, ssh and vpn services, Remote Desktop and website redirect.

GSLB.me is a hosted, cloud-based highly reliable DNS and Global Server Load Balancing solution that provides full authoritative DNS services and DNS-based geographical traffic balancing, failover, high availability, geographical routing, dynamic DNS and DNSSEC.

Fully Managed DNS Hosting, Domain Tools & Registrations. Stay online. All the time.