DNS Tools
Query common DNS records and check selected public resolvers.
Record Lookup
Propagation Check
How to Use DNS Tools?
Record Lookup:
- Enter a domain name (e.g., example.com).
- Select the record type (A, AAAA, CNAME, MX, or TXT).
- Click Lookup to query DNS records.
Propagation Check:
- Enter a domain and select record type.
- Click Check to query multiple public DNS resolvers.
- Compare results to verify DNS propagation across different servers.
Frequently Asked Questions
What DNS record types can I look up?
You can query A (IPv4 address), AAAA (IPv6), CNAME (alias), MX (mail server), TXT (SPF/DKIM/verification), NS (nameservers), and SOA records for any domain.
Why do DNS results differ from my local lookup?
This tool queries public DNS resolvers. Your local results may differ due to DNS caching (TTL), split-horizon DNS, or ISP-level filtering. Use this tool to see the public internet view of a domain.
How can I verify SPF and DKIM records?
Look up TXT records for your domain to see SPF entries (starting with v=spf1). For DKIM, query TXT records for selector._domainkey.yourdomain.com using the specific selector your mail provider gives you.
What is a DNS TTL and why does it matter?
TTL (Time To Live) is the number of seconds resolvers cache a DNS record before re-querying. Lower TTLs mean faster propagation when you change records; higher TTLs reduce DNS query load. Typical values range from 300 to 86400 seconds.
