Cloudflare
Cloudflare is a software-as-a-service hosted front-end transparent proxy designed to be put in front of any website to block attacks of any size and type, and offer integrated DNS and CDN services.
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.
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
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Dynamic DNS Port Forwarding Domain Forwarding URL Forwarding Custom DNS
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Cloudflare is a software-as-a-service hosted front-end transparent proxy designed to be put in front of any website to block attacks of any size and type, and offer integrated DNS and CDN services.
Freemium
nsupdate.info is a dynamic dns service. You usually need it so your router (or other dyndns2-compatible client) can update a hostname, so you don't need to know or find out your current IP address. nsupdate.
Free Open Source Web Self-Hosted
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.
Free Web
Neustar UltraDNS provides a secure and reliable managed DNS service to help businesses enable and protect their online presence.
Commercial Web
Register your own custom domain for web applications, email, blog or website such as Google Apps, Gmail, MobileMe, Tumblr, Blogger, Posterous and more. Easy setup...
Commercial Web
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.
Freemium Web