40.9M domains entered the zone files last month, and 9.0M left
The drop is 7.0% of the zone-file-visible base in a single month. The registered base is not a slowly growing list, and a corpus that only counts what exists today cannot show it — a name is invisible the moment it goes.
distinct domains tracked
every domain the corpus has ever resolved, whether or not it still does
Source: Datazag · as of 2026-09-24
of them resolving
363,565,914 of domains in gold.dns_wide that resolve
Source: Datazag · as of 2026-09-24
zone files collected
top-level and second-level zones the collection receives
Source: Datazag · as of 2026-09-04
dropped from the zone files, 30 days
9,043,087 of 128.9M domains tracked in the zone-file lifecycle
Source: Datazag · as of 2026-09-24
newly seen in the zone files, 30 days
40,889,972 of 128.9M domains tracked in the zone-file lifecycle
Source: Datazag · as of 2026-09-24
of resolving domains publish IPv6
76,822,796 of 363.6M measured domains
Source: Datazag · as of 2026-09-24
found through certificate transparency
22,995,652 of 415.0M rows in gold.dns_wide
Source: Datazag · as of 2026-09-24
Many registries do not publish additions daily. Our event log records 25,000–66,000 a day against roughly 316,000 implied by the zone files, so a day-over-day figure here would describe the feed rather than the internet.
The figures
Free to quote with attribution. Open the notes on a card before you do.
Domains resolved and enriched
363,565,914 of domains in gold.dns_wide that resolve
Source: Datazag · as of 2026-09-24
Top-level domains the corpus reaches into
1,433 of 1,453 delegated top-level domains
Source: Datazag · as of 2026-09-24
Tracked domains that no longer resolve
52,115,934 of 415.0M rows in gold.dns_wide
Source: Datazag · as of 2026-09-24
Domains registered in the last 90 days
19,059 of 433,496 domains with registration data
Source: Datazag · as of 2026-09-24
Domains whose first certificate is under 30 days old
5,351,906 of 110.0M domains with a certificate observed
Source: Datazag · as of 2026-09-24
Domains dropped from the zone files in 30 days
9,043,087 of 128.9M domains tracked in the zone-file lifecycle
Source: Datazag · as of 2026-09-24
Domains newly seen in the zone files in 30 days
40,889,972 of 128.9M domains tracked in the zone-file lifecycle
Source: Datazag · as of 2026-09-24
Resolving domains that publish an IPv6 address
76,822,796 of 363.6M measured domains
Source: Datazag · as of 2026-09-24
Domains found through certificate transparency alone
22,995,652 of 415.0M rows in gold.dns_wide
Source: Datazag · as of 2026-09-24
Domains publishing a CAA record
5,616,369 of 363.6M resolving domains
Source: Datazag · as of 2026-09-24
Domains parked on a recognised parking platform
32,201,582 of 363.6M resolving domains
Source: Datazag · as of 2026-09-24
Domains with a signed DNSSEC delegation
29,133,843 of 363.6M resolving domains
Source: Datazag · as of 2026-09-24
Pivot the corpus
Precomputed counts over groups. Slice 363,565,914 domains with no server round-trip — and no slice will ever name one.
Every domain that resolves. The right base for anti-spoofing questions.
Finds the extremes. Often small groups sitting near 100%.
The domain's TLD, as registered.
across all resolving domains
43,781,239 of 363,565,914 all domains
Source: Datazag · as of 2026-09-24
DMARC enforced — 43,781,239 of 363,565,914 all domains.
DMARC enforced by top-level domain
Rate against all domains — highest rate first.
Query these statistics directly
Every figure on this page is served as Parquet. Same format as the corpus itself.
SELECT * FROM read_parquet('https://observatory.datazag.com/observatory_statistics.parquet');