DNS over HTTPS (DoH) vs DNSSEC: Securing Domain Name Resolution Against ISP Spoofing
Renjith Pillai
Senior Systems Architect & Financial Analyst
Standard DNS queries operate over unencrypted UDP port 53. This allows ISPs, public Wi-Fi operators, and threat actors to inspect, log, and tamper with your domain resolution requests.
How DoH Encrypts Port 53 Traffic
DNS over HTTPS wraps DNS queries inside encrypted HTTPS sessions on TCP port 443. To network sniffers, your DNS lookups blend seamlessly with regular HTTPS Web traffic.
Frequently Asked Questions
Does DoH hide my IP address from websites?+
What are fast public DoH resolvers?+
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Test IP & DNS Latency Diagnostics →Renjith Pillai
Senior Software Engineer & Network Specialist
Renjith Pillai is a senior software engineer and financial tools author with over 12 years of experience. He built EasyCalcs.in to provide high-precision, privacy-first technical tools and financial calculators for investors, engineers, and consumers.