There are several options for free DNS servers that you can use to resolve domain names and IP addresses. Some popular choices include:
Google Public DNS:
Google Public DNS is a free, global DNS service that provides fast and secure name resolution. It is operated by Google and is available to anyone who wants to use it.
To use Google Public DNS, you can set the DNS server addresses in your network settings to 8.8.8.8 and 8.8.4.4.
Cloudflare:
Cloudflare is a popular content delivery network (CDN) and DNS provider that offers a free DNS service. It provides fast and secure name resolution and is available to anyone who wants to use it.
To use Cloudflare's free DNS service, you can set the DNS server addresses in your network settings to 1.1.1.1 and 1.0.0.1.
OpenDNS:
OpenDNS is a free DNS service that provides fast and secure name resolution. It is operated by Cisco and is available to anyone who wants to use it.
To use OpenDNS, you can set the DNS server addresses in your network settings to 208.67.222.222 and 208.67.220.220.
Quad9:
Quad9 is a free DNS service that provides fast and secure name resolution. It is operated by the Global Cyber Alliance and is available to anyone who wants to use it.
To use Quad9, you can set the DNS server addresses in your network settings to 9.9.9.9 and 149.112.112.112.