Observed arrival · 2026-10-30
DNS Almanac’s weekly DNS ledger
DNS Almanac records weekly public DNS answers for about a million company domains, building a history of their email, hosting, and software providers.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People tracking company DNS-provider changes
- Worth noticing
- Each domain gets about 25 weekly questions, including common DKIM selectors and a random-name test.
Field notes
The query set reaches beyond standard mail and address records to include common DKIM selectors and subdomains such as www, help, and status. A random-name lookup tests whether a domain answers for every name. The project says it does not scan ports, crawl websites, or send email, and domain owners can request that lookups stop.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
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