Defaults.Exposed › Stats › Email authentication (SPF, DKIM, DMARC)
What percent of domains have an SPF record?
As of July 28, 2026 · census snapshot 2026-07-28
As of July 28, 2026, 51.2% of the 276 million domains graded in the Defaults.Exposed census publish an SPF record — 141,270,856 domains. The remaining 48.8% publish none.
| Result | Domains | Share |
|---|---|---|
| SPF with -all (hard fail) | 55,335,121 | 20.1% |
| SPF with ~all (soft fail) | 79,033,658 | 28.7% |
| SPF with ?all (neutral) | 4,339,914 | 1.6% |
| SPF with +all (allows anyone) | 36,262 | 0.0% |
| SPF present but invalid | 2,525,901 | 0.9% |
| No SPF record | 134,395,419 | 48.8% |
Cite this
Statistic current as of July 28, 2026. Recomputed from the live census each edition; the number on this page and the machine-readable twin always match. Please cite Defaults.Exposed and link this page.
Defaults.Exposed, "What percent of domains have an SPF record?" (as of July 28, 2026). https://defaults.exposed/stats/what-percent-of-domains-have-spf
Permalink:https://defaults.exposed/stats/what-percent-of-domains-have-spf · Machine-readable:spf-adoption.json · Licence:open data
Methodology: how we grade the internet · Source data: defaults.exposed/data. Updated with each census edition.