WiseStamp SaaS sender
According to Live Direct Marketing's daily Tranco top-1M scan (September 13, 2026), WiseStamp is the SaaS sender for 99 domains — 0.02% of 628,913 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 99 domains in the Tranco top-1M use WiseStamp (0.02% of SPF-publishing domains).
- Snapshot date: 2026-09-13 — recomputed every day.
- Strongest TLD: .com (69.7% of its domains).
- Most co-used service: Google Workspace.
- Directory category: SaaS sender.
Why WiseStamp appears in this category
WiseStamp — cloud email-signature management with a server-side stamping and relay service.
We classify it as a SaaS sender from include: mechanisms in the SPF record matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
What the data shows
88.9% of its domains sit outside the top 100,000 — a long-tail footprint spread across smaller sites. Its single largest TLD is .com at 69.7% of its domains — a strong concentration across 17 TLDs overall. The service most often seen alongside it is Google Workspace (mailbox provider), on 43.4% of its domains.
Where WiseStamp sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 1.0% |
| Top 100,000 | 9 | 9.1% |
| Top 1,000,000 | 88 | 88.9% |
| Unranked | 1 | 1.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 69 | 69.7% | |
| .org | 11 | 11.1% | |
| .io | 5 | 5.1% | |
| .co | 1 | 1.0% | |
| .media | 1 | 1.0% | |
| .online | 1 | 1.0% | |
| .nl | 1 | 1.0% | |
| .ro | 1 | 1.0% | |
| .co.uk | 1 | 1.0% | |
| .world | 1 | 1.0% |
What WiseStamp users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 99 domains.
| Type | Service | Domains | Share of WiseStamp users |
|---|---|---|---|
| Mailbox | Google Workspace | 43 | 43.4% |
| Mailbox | Microsoft 365 | 33 | 33.3% |
| Mailbox | Mimecast | 5 | 5.1% |
| Mailbox | Barracuda | 5 | 5.1% |
| Mailbox | Proofpoint Essentials | 4 | 4.0% |
| Mailbox | Proofpoint | 3 | 3.0% |
See the full WiseStamp data page (KPI cards, trend, sample domains) →
Run a free inbox-placement test across Gmail, Outlook, Yahoo and more — see exactly where your mail lands and why.
Frequently asked questions
How many domains use WiseStamp?
99 domains in the Tranco top-1M use WiseStamp as their SaaS sender as of September 13, 2026 (0.02% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is WiseStamp common enough to affect email deliverability testing?
WiseStamp accounts for 0.02% 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.
Which countries or TLDs use WiseStamp most?
WiseStamp's largest TLD is .com (69.7% of its domains); it appears across 17 TLDs in total.