According to Live Direct Marketing's daily Tranco top-1M scan (July 12, 2026), SpaceWeb (RU) is the mailbox provider for 252 domains — 0.04% of 658,108 domains with MX records. Detection method: primary MX record (lowest preference).
SpaceWeb (RU) is a regional mailbox provider operating as a primary mail exchanger for Russian websites and domains. It serves a distributed base of smaller sites across the .ru namespace rather than consolidating traffic to a few major platforms.
For senders, SpaceWeb matters when targeting Russian-market recipients—especially smaller businesses and regional sites. Part of the Russian email ecosystem alongside Unisender and other regional providers, SpaceWeb should be treated as a distinct deliverability segment where region-specific authentication testing is essential.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 0.4% |
| Top 100,000 | 8 | 3.2% |
| Top 1,000,000 | 176 | 69.8% |
| Unranked | 67 | 26.6% |
| TLD | Domains | Share | |
|---|---|---|---|
| .ru | 178 | 70.6% | |
| .com | 17 | 6.7% | |
| .online | 17 | 6.7% | |
| .tech | 12 | 4.8% | |
| .site | 4 | 1.6% | |
| .su | 4 | 1.6% | |
| .net | 3 | 1.2% | |
| .xn--p1ai | 3 | 1.2% | |
| .space | 3 | 1.2% | |
| .team | 2 | 0.8% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 252 domains.
| Type | Service | Domains | Share of SpaceWeb (RU) users |
|---|---|---|---|
| ESP | Unisender (RU) | 7 | 2.8% |
| ESP | SMTP.BZ | 4 | 1.6% |
| ESP | UniSender | 3 | 1.2% |
| ESP | Amazon SES | 2 | 0.8% |
| ESP | SendPulse | 1 | 0.4% |
| ESP | Mailgun | 1 | 0.4% |
| ESP | Elastic Email | 1 | 0.4% |
| ESP | MailGaner | 1 | 0.4% |
| ESP | Mindbox | 1 | 0.4% |
Campaigns targeting Russian-market audiences should include SpaceWeb in their deliverability testing matrix. Because it serves a long-tail constituency of smaller sites rather than major brands, sender reputation and authentication signals may not transfer from testing against global providers; region-specific validation is essential for reliable delivery to this segment.
See the full SpaceWeb (RU) data page (KPI cards, trend, sample domains) →
If your recipients include Russian .ru domains or small regional businesses, testing against SpaceWeb is worthwhile. For global campaigns focused on major cloud platforms, it is lower priority; for Russian-market senders, it should be included in your region-specific testing.
252 domains in the Tranco top-1M use SpaceWeb (RU) as their mailbox provider as of July 12, 2026 (0.04% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
SpaceWeb (RU) accounts for 0.04% 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.
SpaceWeb (RU)'s largest TLD is .ru (70.6% of its domains); it appears across 18 TLDs in total.