diff --git a/docs/general/dns-providers.md b/docs/general/dns-providers.md
index a441e5fe6..b0f752177 100644
--- a/docs/general/dns-providers.md
+++ b/docs/general/dns-providers.md
@@ -155,6 +155,7 @@ DNS servers with custom filtering that protects your device from malware.
 | DNSCrypt, IPv4 |  Provider: `2.dnscrypt-cert.opendns.com` IP: `208.67.220.220`| [Add to AdGuard](sdns://AQAAAAAAAAAADjIwOC42Ny4yMjAuMjIwILc1EUAgbyJdPivYItf9aR6hwzzI1maNDL4Ev6vKQ_t5GzIuZG5zY3J5cHQtY2VydC5vcGVuZG5zLmNvbQ) |
 | DNSCrypt, IPv6 |  Provider: `2.dnscrypt-cert.opendns.com` IP: `[2620:0:ccc::2]`| [Add to AdGuard](sdns://AQAAAAAAAAAAD1syNjIwOjA6Y2NjOjoyXSC3NRFAIG8iXT4r2CLX_WkeocM8yNZmjQy-BL-rykP7eRsyLmRuc2NyeXB0LWNlcnQub3BlbmRucy5jb20) |
 | DNS-over-HTTPS | `https://doh.opendns.com/dns-query` | [Add to AdGuard](adguard:add_dns_server?address=https://doh.opendns.com/dns-query&name=doh.opendns.com), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=https://doh.opendns.com/dns-query&name=doh.opendns.com) |
+| DNS-over-TLS | `tls://dns.opendns.com` | [Add to AdGuard](adguard:add_dns_server?address=tls://dns.opendns.com&name=dns.opendns.com), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=tls://dns.opendns.com&name=dns.opendns.com) |
 
 #### FamilyShield
 
@@ -165,6 +166,18 @@ OpenDNS servers that provide adult content blocking.
 | DNS, IPv4      | `208.67.222.123` and `208.67.220.123`              | [Add to AdGuard](adguard:add_dns_server?address=208.67.222.123&name=), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=208.67.222.123&name=) |
 | DNSCrypt, IPv4 | Provider: `2.dnscrypt-cert.opendns.com` IP: `208.67.220.123`| [Add to AdGuard](sdns://AQAAAAAAAAAADjIwOC42Ny4yMjAuMTIzILc1EUAgbyJdPivYItf9aR6hwzzI1maNDL4Ev6vKQ_t5GzIuZG5zY3J5cHQtY2VydC5vcGVuZG5zLmNvbQ) |
 | DNS-over-HTTPS | `https://doh.familyshield.opendns.com/dns-query` | [Add to AdGuard](adguard:add_dns_server?address=https://doh.familyshield.opendns.com/dns-query&name=doh.familyshield.opendns.com), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=https://doh.familyshield.opendns.com/dns-query&name=doh.familyshield.opendns.com) |
+| DNS-over-TLS | `tls://familyshield.opendns.com` | [Add to AdGuard](adguard:add_dns_server?address=tls://familyshield.opendns.com&name=familyshield.opendns.com), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=tls://familyshield.opendns.com&name=familyshield.opendns.com) |
+
+#### Sandbox
+
+Non-filtering OpenDNS servers.
+
+| Protocol       | Address                                            |                |
+|----------------|----------------------------------------------------|----------------|
+| DNS, IPv4      | `208.67.222.2` and `208.67.220.2`                  | [Add to AdGuard](adguard:add_dns_server?address=208.67.220.2&name=), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=208.67.222.2&name=) |
+| DNS, IPv6      | `2620:0:ccc::2` IP: `2620:0:ccd::2`| [Add to AdGuard](adguard:add_dns_server?address=2620:0:ccc::2&name=), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=2620:0:ccc::2&name=) |
+| DNS-over-HTTPS | `https://doh.sandbox.opendns.com/dns-query` | [Add to AdGuard](adguard:add_dns_server?address=https://doh.sandbox.opendns.com/dns-query&name=doh.sandbox.opendns.com), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=https://doh.sandbox.opendns.com/dns-query&name=doh.sandbox.opendns.com) |
+| DNS-over-TLS | `tls://sandbox.opendns.com` | [Add to AdGuard](adguard:add_dns_server?address=tls://sandbox.opendns.com&name=sandbox.opendns.com), [Add to AdGuard VPN](adguardvpn:add_dns_server?address=tls://sandbox.opendns.com/dns-query&name=sandbox.opendns.com) |
 
 :::info