According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), ClearSlide is the SaaS sender for 85 domains — 0.01% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
ClearSlide is a SaaS platform for sending email on behalf of customer domains. It provides infrastructure for organisations to deliver transactional, marketing, and operational email from their own domain names, handling delivery, reputation, and technical responsibility for outbound mail flows.
The SPF footprint of ClearSlide is concentrated among high-traffic and enterprise-class websites, predominantly in the .com top-level domain and frequently deployed alongside Microsoft 365. For senders using ClearSlide, understanding its authentication requirements is essential; for mail receivers, recognising ClearSlide's SPF signatures helps distinguish legitimate corporate email from domain spoofing attempts.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 9 | 10.6% |
| Top 100,000 | 23 | 27.1% |
| Top 1,000,000 | 52 | 61.2% |
| Unranked | 1 | 1.2% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 75 | 88.2% | |
| .org | 3 | 3.5% | |
| .edu | 2 | 2.4% | |
| .io | 1 | 1.2% | |
| .me | 1 | 1.2% | |
| .net | 1 | 1.2% | |
| .be | 1 | 1.2% | |
| .com.au | 1 | 1.2% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 85 domains.
| Type | Service | Domains | Share of ClearSlide users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 27 | 31.8% |
| Mailbox | Google Workspace | 23 | 27.1% |
| Mailbox | Mimecast | 14 | 16.5% |
| Mailbox | Proofpoint | 12 | 14.1% |
| Mailbox | Unknown / Other | 3 | 3.5% |
| Mailbox | Self-Hosted | 1 | 1.2% |
ClearSlide publishes SPF include mechanisms that organisations add to their SPF records to authorise its servers for outbound sending. When ClearSlide's include sits alongside other authorisations—such as Microsoft 365 or competing email platforms—care must be taken to avoid SPF record complexity that could trigger authentication failures or exceed DNS query limits in strict implementations.
See the full ClearSlide data page (KPI cards, trend, sample domains) →
ClearSlide is a SaaS email sending platform used by large and high-traffic organisations to deliver email from their own domains. Its prevalence in enterprise SPF records reflects adoption as part of corporate email infrastructure, often integrated alongside tools such as Microsoft 365.
85 domains in the Tranco top-1M use ClearSlide as their SaaS sender as of July 13, 2026 (0.01% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
ClearSlide 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.
ClearSlide's largest TLD is .com (88.2% of its domains); it appears across 8 TLDs in total.