According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), One.com (DK hosting) is the SaaS sender for 787 domains — 0.13% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
One.com is a Danish web hosting and domain management platform that provides email hosting and forwarding services as part of its product suite. The company operates email infrastructure primarily for smaller organisations and professionals who use its platform for domain registration, web hosting, and email services combined.
In email infrastructure analysis, One.com appears predominantly in the long tail of smaller and mid-sized organisations rather than among the largest global brands. Its footprint is internationally dispersed across many TLDs, with particular concentration in .com registrations, and it frequently appears in authentication records alongside Microsoft 365—a pattern indicating organisations that bundle email with hosted solutions rather than adopting specialist email systems. For deliverability professionals, this footprint signals a particular sender segment: decentralised, smaller-scale organisations using hosting-integrated email rather than dedicated enterprise platforms.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 10 | 1.3% |
| Top 100,000 | 77 | 9.8% |
| Top 1,000,000 | 579 | 73.6% |
| Unranked | 121 | 15.4% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 327 | 41.6% | |
| .se | 49 | 6.2% | |
| .net | 48 | 6.1% | |
| .dk | 43 | 5.5% | |
| .es | 36 | 4.6% | |
| .no | 30 | 3.8% | |
| .co.uk | 28 | 3.6% | |
| .org | 26 | 3.3% | |
| .be | 16 | 2.0% | |
| .de | 16 | 2.0% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 787 domains.
| Type | Service | Domains | Share of One.com (DK hosting) users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 205 | 26.0% |
| Mailbox | One.com mailpod | 124 | 15.8% |
| Mailbox | Google Workspace | 97 | 12.3% |
| Mailbox | Hostopia / CarrierZone | 81 | 10.3% |
| Mailbox | Self-Hosted | 72 | 9.1% |
| Mailbox | Unknown / Other | 45 | 5.7% |
One.com's presence in email infrastructure reflects its role as an email provider bundled within a hosting platform. Organisations using One.com's email services publish SPF includes referencing One.com's mail systems, permitting authentication of outbound mail. The typical deployment pattern involves One.com paired with other mail systems, particularly Microsoft 365, resulting in multi-system authentication chains. Understanding One.com's footprint is relevant for deliverability teams analysing SPF architectures and sender profiles across organisations that favour integrated, bundled email provision rather than dedicated specialist email services.
See the full One.com (DK hosting) data page (KPI cards, trend, sample domains) →
One.com appears in your SPF record because you use its email hosting or forwarding service; its SPF includes permit mail sent through One.com's systems to authenticate as coming from your domain.
787 domains in the Tranco top-1M use One.com (DK hosting) as their SaaS sender as of July 13, 2026 (0.13% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
One.com (DK hosting) accounts for 0.13% of SPF-publishing domains in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
One.com (DK hosting) has been stable — its share moved -0.00 pp over the last 30 days (as of July 13, 2026).
One.com (DK hosting)'s largest TLD is .com (41.6% of its domains); it appears across 73 TLDs in total.