https://www.imagup.com/what-is-dns-failover/ 370
https://www.gforgames.com/find-out-who-is-your-dns-and-hosting-provider/
https://demotix.com/improve-dns-traffic-management/
https://www.the-pool.com/improve-your-dns-traffic-management/
https://www.chartattack.com/dns-hosting-provider/
https://www.weirdworm.com/benefits-implementing-cdn-strategy/
https://www.opptrends.com/preventing-your-website-downtime/
https://www.comeaucomputing.com/real-user-monitoring-tools/
https://www.jaxtr.com/build-own-content-delivery-network/