SuperCP email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 14, 2026), SuperCP is the email service provider (ESP) for 206 domains — 0.03% of 637,677 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 206 domains in the Tranco top-1M use SuperCP (0.03% of SPF-publishing domains).
- Snapshot date: 2026-09-14 — recomputed every day.
- Strongest TLD: .com (53.9% of its domains).
- Most co-used service: Self-Hosted.
- Directory category: mailbox provider.
Why SuperCP appears in this category
SuperCP control-panel hosting outbound (supercp.com).
We classify it as a mailbox provider 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.
SuperCP is an email service provider serving smaller organisations and independent sites by managing their outbound mail authentication and delivery. It is identified through its presence in SPF include mechanisms, indicating domains that delegate sender authentication to SuperCP's systems.
SuperCP's footprint is concentrated in long-tail sites and .com domains, often deployed alongside self-hosted mail infrastructure. For email professionals—whether managing small-site deployments or monitoring mail from partner networks—SuperCP's prevalence in this segment means regular encounters with its SPF records, and understanding its authentication model is essential for accurate sender evaluation and filtering policies.
Where SuperCP sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 5 | 2.4% |
| Top 1,000,000 | 198 | 96.1% |
| Unranked | 3 | 1.5% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 111 | 53.9% | |
| .net | 16 | 7.8% | |
| .org | 16 | 7.8% | |
| .ca | 6 | 2.9% | |
| .co | 5 | 2.4% | |
| .tz | 3 | 1.5% | |
| .in | 3 | 1.5% | |
| .com.sg | 3 | 1.5% | |
| .cl | 3 | 1.5% | |
| .co.uk | 3 | 1.5% |
What SuperCP users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 206 domains.
| Type | Service | Domains | Share of SuperCP users |
|---|---|---|---|
| Mailbox | Self-Hosted | 142 | 68.9% |
| Mailbox | Google Workspace | 28 | 13.6% |
| Mailbox | Microsoft 365 | 13 | 6.3% |
| Mailbox | Zoho Mail | 7 | 3.4% |
| Mailbox | Unknown / Other | 6 | 2.9% |
| Mailbox | Proofpoint Essentials | 2 | 1.0% |
| ESP | MailChannels | 5 | 2.4% |
| ESP | Elastic Email | 3 | 1.5% |
| ESP | Amazon SES | 3 | 1.5% |
| ESP | Mailchimp | 2 | 1.0% |
SPF include delegation and authentication sharing
When a domain's SPF record includes SuperCP, outbound mail authentication is delegated to SuperCP's authorised systems rather than the sender's own infrastructure. This arrangement means reputation, feedback loops, and deliverability outcomes are shared across SuperCP's customer base—a model typical of external ESPs. Understanding this shared-reputation dynamic is critical when evaluating sender credentials, configuring recipient-side authentication policies, or investigating mail reputation for a domain using SuperCP.
See the full SuperCP data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I be concerned if SuperCP appears in a sender's SPF record?
SuperCP is a legitimate ESP used by smaller organisations; its presence in SPF is normal authentication delegation and not inherently suspicious. However, remember that a domain's reputation is linked to SuperCP's network reputation, so if SuperCP's IPs are abused by spam senders, deliverability for legitimate mail from that domain may suffer.
How many domains use SuperCP?
206 domains in the Tranco top-1M use SuperCP as their email service provider (ESP) as of September 14, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is SuperCP common enough to affect email deliverability testing?
SuperCP accounts for 0.03% 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 SuperCP most?
SuperCP's largest TLD is .com (53.9% of its domains); it appears across 40 TLDs in total.