Question 1

What is the difference between authoritative and recursive DNS results?

Accepted Answer

Recursive resolvers query multiple servers and cache results for speed, while authoritative name servers hold the definitive original records directly from the domain's DNS manager.

Question 2

How does TTL affect DNS propagation speed?

Accepted Answer

TTL (Time To Live) specifies how many seconds resolvers cache a record before checking for updates. Lower TTL values (like 300 seconds) allow faster migration, while higher TTLs reduce lookup latency.

Question 3

Can this tool detect DNSSEC signatures?

Accepted Answer

Yes. When queried through DNS-over-HTTPS, the resolver verifies cryptographic signatures and sets the AD (Authenticated Data) flag if the domain has a valid DNSSEC chain of trust.

Question 4

How does this tool perform lookups without a backend?

Accepted Answer

The tool uses DNS-over-HTTPS (DoH) via Cloudflare (1.1.1.1) and Google Public DNS. Queries are sent directly from your browser over encrypted HTTPS without intermediate servers.

DNS Lookup Tool

Frequently Asked Questions

Related Network & Diagnostic Tools

SSL Certificate Decoder

WHOIS Lookup

Port Scanner

Ping Tool

Traceroute Tool

Subnet Calculator