Reg.ru mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), Reg.ru is the mailbox provider for 786 domains — 0.12% of 665,310 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 786 domains in the Tranco top-1M use Reg.ru (0.12% of domains with MX records).
- Snapshot date: 2026-09-12 — recomputed every day.
- Strongest TLD: .ru (64.4% of its domains).
- Region skew: Russia.
- Most co-used service: Unisender (RU).
- Directory category: hosting mail bundle.
Why Reg.ru appears in this category
Largest Russian registrar, bundled hosting+mail.
We classify it as a hosting mail bundle from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Reg.ru is a Russian domain registrar and web hosting provider that operates a regional mailbox service, primarily serving businesses and smaller organisations in the .ru domain space and broader Cyrillic internet. The service offers domain registration, hosting, and email infrastructure bundled into single-tenant accounts.
As a mail provider detected across the Tranco top-1 million websites, Reg.ru appears mostly in the long tail rather than among the largest global brands, with regional concentration in Russia and Eastern European markets. For email practitioners, this means Reg.ru sits alongside other regional providers as a secondary consideration in deliverability testing and sender reputation monitoring — not a first-order carrier like Gmail, Outlook, or Yahoo, but one whose filtering practices and quota behaviour should be understood when targeting Russian or post-Soviet audiences.
Where Reg.ru sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 2 | 0.3% |
| Top 100,000 | 34 | 4.3% |
| Top 1,000,000 | 744 | 94.7% |
| Unranked | 6 | 0.8% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .ru | 506 | 64.4% | |
| .com | 71 | 9.0% | |
| .net | 21 | 2.7% | |
| .online | 20 | 2.5% | |
| .tech | 15 | 1.9% | |
| .xn--p1ai | 14 | 1.8% | |
| .pro | 14 | 1.8% | |
| .su | 14 | 1.8% | |
| .io | 10 | 1.3% | |
| .store | 6 | 0.8% |
What Reg.ru users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 786 domains.
| Type | Service | Domains | Share of Reg.ru users |
|---|---|---|---|
| ESP | Unisender (RU) | 28 | 3.6% |
| ESP | UniSender | 14 | 1.8% |
| ESP | DashaMail (RU) | 13 | 1.7% |
| ESP | SendPulse | 11 | 1.4% |
| ESP | SMTP.BZ | 7 | 0.9% |
| ESP | Mailgun | 4 | 0.5% |
| ESP | Sendsay | 3 | 0.4% |
| ESP | ReSender (RU) | 3 | 0.4% |
| ESP | Mindbox | 2 | 0.3% |
| ESP | Amazon SES | 2 | 0.3% |
Regional provider configuration and sender authentication
Like many regional mailbox hosts, Reg.ru's mail handling reflects local market practices: it typically requires senders to authenticate via SPF, DKIM, and DMARC, and expects compliance with RFC 5321 and RFC 5322 standards. Smaller regional providers sometimes apply stricter rate-limits or more conservative filtration than global carriers, particularly for senders without long-standing reputation. Testing against Reg.ru's infrastructure is worthwhile if your audience skews Russian-market or post-Soviet, but should be treated as a secondary verification step rather than a universal baseline, given the provider's position in the long tail.
See the full Reg.ru data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I test email deliverability against Reg.ru?
If your audience includes Reg.ru users in Russian or post-Soviet markets, include it in regional testing. For global SaaS, Reg.ru is lower-priority than mainstream carriers but worth monitoring for those market segments.
How many domains use Reg.ru?
786 domains in the Tranco top-1M use Reg.ru as their mailbox provider as of September 12, 2026 (0.12% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Reg.ru common enough to affect email deliverability testing?
Reg.ru accounts for 0.12% of domains with MX records 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 Reg.ru most?
Reg.ru's largest TLD is .ru (64.4% of its domains); it appears across 60 TLDs in total.