Bulk DNS Records Lookup (A, AAAA, MX, NS, TXT)
DNS records are the steering wheel of every domain: they decide where visitors land, where mail is delivered and which servers hold the authority over the zone.
More about this tool
This bulk lookup queries A, AAAA, MX, NS and TXT records for every domain in your list and lays them out in a single report, so you can compare dozens of domains at a glance instead of firing whois and dig commands one by one. It answers the questions webmasters actually ask: did the migration really move every domain to the new IP, is IPv6 published yet, which name servers serve the zone, is the mail routing sane, and what do the SPF and verification TXT strings look like. MX records are shown with their priorities and sorted, so a misconfigured backup server stands out immediately; a null MX ("0 .") is displayed as is — it means the domain deliberately receives no mail. TXT strings are summarized in one line each, which keeps even long SPF records readable. Domains with no records at all are marked with a DNS error, which usually means the name is not registered or not delegated. Paste up to one hundred domains, watch the report build live and export the result to CSV.
How it works
- Paste up to 100 items, one per line. Duplicates are removed automatically.
- If a line contains a full URL, only its host name is used.
- The check runs in the background; the results page shows live progress.
- Filter the report by status code and export it to CSV.
Rate limit: 5 jobs per hour from one IP address. Results are stored for 7 days.
FAQ
Which record types are checked?
Five types per domain: A (IPv4 addresses), AAAA (IPv6 addresses), MX (mail servers with priorities), NS (name servers authoritative for the zone) and TXT (text records such as SPF, DKIM and site-verification tokens).
Why is the AAAA column empty?
The domain has no IPv6 records published. This is still very common and not an error by itself: the site is simply reachable over IPv4 only. If you expect IPv6 to work, check that the AAAA record was actually added at your DNS provider.
What does the MX value "0 ." mean?
It is a null MX (RFC 7505): the domain owner explicitly declares that this domain does not accept e-mail. Legitimate for parked or service domains; if you see it on a domain that should receive mail, the MX record is misconfigured.
How long are the results stored?
Jobs and their results are kept for 7 days and then deleted automatically. Anyone who has the result link can view the report, so do not submit confidential internal domains.
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