Parked domains publish the most and enforce the least
The highest SPF rate is 95.6%, on parked domains; the highest p=none share is 90.7%, on parked domains. One cause for both: a provisioning template wrote the records, nobody chose them.
SPF, enforcement and p=none, parked and live domains compared
| Population | Domains | SPF | Enforcing | p=none of publishers |
|---|---|---|---|---|
| Operates mail, live | 166,177,456 | 78.16% | 15.65% | 60.44% |
| Operates mail, parked | 25,793,891 | 95.63% | 1.74% | 90.75% |
| No mail, live | 164,463,087 | 7.45% | 11.44% | 10.94% |
| No mail, parked | 9,716,376 | 14.46% | 1.17% | 44.76% |
The parked-domain figures
Free to quote with attribution. Open the notes on a card before you do.
Domains parked on a recognised parking platform
35,510,267 of 366.2M resolving domains
Source: Datazag · as of 2026-11-05
Parked domains publishing an SPF record
26,072,304 of 35.5M parked domains
Source: Datazag · as of 2026-11-05
Parked domains publishing a DMARC record
5,100,319 of 35.5M parked domains
Source: Datazag · as of 2026-11-05
Parked domains publishing DMARC that set p=none
4,533,706 of 5.1M parked domains publishing DMARC
Source: Datazag · as of 2026-11-05
Domains publishing an SPF record, excluding parked domains
142,125,738 of 330.6M resolving domains not detected as parked
Source: Datazag · as of 2026-11-05
Domains publishing a DMARC record, excluding parked domains
87,012,578 of 330.6M resolving domains not detected as parked
Source: Datazag · as of 2026-11-05
Parked domains publishing an MX record
12,201,073 of 35.5M parked domains
Source: Datazag · as of 2026-11-05
Domains publishing an MX record, excluding parked domains
162,668,282 of 330.6M resolving domains not detected as parked
Source: Datazag · as of 2026-11-05
Parked domains with an MX that can actually receive mail
10,486,176 of 35.5M parked domains
Source: Datazag · as of 2026-11-05
Domains with a working MX, excluding parked domains
162,269,601 of 330.6M resolving domains not detected as parked
Source: Datazag · as of 2026-11-05
Research using this data
Microsoft and Google run the mailboxes for 24% of corporate domains, eleven times the share behind a security gateway
The gateway market is concentrated but small; the mailbox layer behind it is eleven times larger. National markets turn global shares inside out: one vendor holds almost all of Sweden's.
Read on datazag.com1 in 4 domains publish DMARC, and about half of those enforce it
A census of resolving, unparked domains: about half of DMARC publishers only report spoofing. Among domains that run mail, report-only outnumbers enforcement two to one.
Read on datazag.comWho Really Runs Business Email? Microsoft leads Google 9 : 1 at the largest companies, and is level with it across corporate mail
The keyhole effect: enterprise studies see the largest companies. Across all corporate mail domains, hosting companies and registrars run more mail than Microsoft and Google together.
Read on datazag.comQuery these statistics directly
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SELECT * FROM read_parquet('https://observatory.datazag.com/observatory_statistics.parquet');