We have two ISP's and host our own websites and services. We need to provide failover and load balancing to services we offer. When an ISP goes down we need to have internet users redirected to the secondary site. We want our internet services load balanced to both ISP's.
We are looking at Cloudflare, DNS Made Easy, DYN and Neustar. Looking to see what others are out there and if any listed are better than the others and why. DDOS protection is a must as we have been hit by a DDOS attack in the past.
We currently host our own outside DNS but have found that we cannot provide failover with two ISP's at different data centers.