Mobile DNS over HTTPS: Encrypt Your DNS Queries on eSIM

Why DNS Encryption Matters

Every time you visit a website, your device sends a DNS query that reveals the domain name. Without encryption, these queries are visible to your carrier and anyone monitoring the network. Even with an anonymous eSIM from PrivateSims, unencrypted DNS queries can reveal your browsing activity.

What Is DNS over HTTPS (DoH)?

DNS over HTTPS encrypts DNS queries by sending them through HTTPS, making them indistinguishable from regular web traffic and preventing carriers from seeing which domains you access.

Setting Up DoH on Mobile

On iPhone: Install a DNS configuration profile from providers like NextDNS, Quad9, or Cloudflare.

On Android: Go to Settings, Network, Private DNS, and enter a DoH provider hostname like dns.quad9.net.

• Quad9 (9.9.9.9): Privacy-focused, based in Switzerland
• Cloudflare (1.1.1.1): Fast, privacy policy audited
• NextDNS: Customizable filtering with privacy features

For comprehensive DNS privacy, combine DoH with our DNS encryption guide.

FAQ

Is DoH better than DoT?

Both encrypt DNS queries effectively. DoH is harder to block because it uses port 443 (same as HTTPS), while DoT uses port 853 which is easier to identify and block.

Does DoH work with VPNs?

Yes, but ensure your VPN handles DNS within its tunnel to prevent leaks.