According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Sendios is the email service provider (ESP) for 91 domains — 0.01% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
71.4% of its domains sit outside the top 100,000 — a long-tail footprint spread across smaller sites. Its single largest TLD is .com at 98.9% of its domains — a strong concentration across 2 TLDs overall. The service most often seen alongside it is Google Workspace (mailbox provider), on 100.0% of its domains.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 13 | 14.3% |
| Top 1,000,000 | 65 | 71.4% |
| Unranked | 13 | 14.3% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 90 | 98.9% | |
| .live | 1 | 1.1% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 91 domains.
| Type | Service | Domains | Share of Sendios users |
|---|---|---|---|
| Mailbox | Google Workspace | 91 | 100.0% |
| ESP | Zendesk | 90 | 98.9% |
See the full Sendios data page (KPI cards, trend, sample domains) →
91 domains in the Tranco top-1M use Sendios as their email service provider (ESP) as of July 13, 2026 (0.01% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Sendios accounts for 0.01% 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.
Sendios's largest TLD is .com (98.9% of its domains); it appears across 2 TLDs in total.