DNSSEC validate
1. DNSSEC validation: Go
2. Internet.nl: Go
3. DNSSEC resolver algorithm test: Go
4. Cloudflare tools: Go | Go
5. Browserleaks test: Go
6. Check my DNS: Go
7. DNS randomness: Go
8. DNS Spoofability test: Go
9. DNSTrace: Go
10. Threats search: Go
11. Whoer.net Go
12. EDNS test Go

DNS over HTTPs (DoH)
DNS over HTTPS is a new protocol designed to encrypt and secure DNS traffic over HTTPs.
It prevents DNS hijacking and ISPs from sniffing your traffic.
You can use will Infra on Android Phone, Mozilla firefox nightly, Chrome coming soon.
DNSCrypt v2 client does support DoH, see dnscrypt configuration example on Windows, Mac, Ios (DNSCloak)

Encrypted DNS - DNS over TLS
DNS over TLS support is available on all our services through port 853 (standard port, some service may support 443).
DNS over TLS encrypts and authenticates all your DNS traffic to protect your privacy and prevent DNS hijacking and sniffing.
Client software: Stubby | Unbound
How to get SPKI
Be sure you already install package apt install gnutls-bin
gnutls-cli --print-cert -p 853 108.61.201.119 | grep "pin-sha256" | head -1
OR kdig -d @108.61.201.119 +tls-ca +tls-host=dot-jp.blahdns.com blahdns.com
OR
echo | openssl s_client -connect '108.61.201.119:853' 2>/dev/null | openssl x509 -pubkey -noout | openssl pkey -pubin -outform der | openssl dgst -sha256 -binary | openssl enc -base64
TLS1.3 support check
openssl s_client -connect 108.61.201.119:853
Will return message:

New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 2048 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
---
Post-Handshake New Session Ticket arrived:
SSL-Session:
Protocol  : TLSv1.3
Cipher    : TLS_AES_256_GCM_SHA384