You could run multiple servers and use Cloudflare as a load balancer. They have a closed trial for a load balancing feature.

Can I make it working (switching between two servers/vps) just by using dns or I will have to have another vps/server just for load balancing?

Freenom.world - Dutch DNS (80.80.80.80, 80.80.81.81)

much information to them. It is a big mistake. DNS is a crucial piece of internet infrastructure and there is no need to use Google DNS "by default" since we have numerous and open

Google's DNS is used quite widely, even in Enterprise / Corporate environments.

* Free reverse DNS management

Check if the reverse DNS is set for the source IP. Some spam checkers put mails into spam if the reverse DNS IP is not set correct. Also make sure the content is not actually a spam content (Image)

I definitely use another DNS provider (my own dnscrypt proxy, on some other server).

You can also use a public DNS, etc instead of your hosting providers DNS, but generally must providers don't go looking through customers servers/VPSs or private data unless the server gets pulled by

I have 3 cPanel DNS Only installs and a LibreNMS install on the 768mb services

As Ishaq said, you add nameservers to /etc/resolv.conf otherwise you'll get those can't resolve messages. You can use the regular Google DNS servers or most providers will provide some you can use too

That's how things were done everywhere before DNS.

P.S. Warning: Be careful if you run Steve Gibson's DNS benchmarking tool from behind a sophisticated firewall. It may trigger the firewall into thinking that the computer running the tool is attacking

I use Steve Gibson's excellent DNS benchmark tool to identify a set of fast responding DNS servers for a given site.

None of external DNS providers can be trusted in that case. You just have to rely on others' feedback. But at least dnscrypt + dnssec feature protects me from DNS spoofing (some ISPs do this).

(Quote)

(Quote)

pre-2009.. ISP's DNS, then OpenDNS for a while

Today you use Google DNS. Tomorrow you'll kill a kitten.

Open DNS was the first choice.