According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), TopDNS is the mailbox provider for 30 domains — 0.00% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
TopDNS is a managed DNS and email infrastructure service that handles MX record routing for websites. It allows smaller businesses to manage email delivery without operating their own mail servers.
TopDNS's footprint among major websites is concentrated among smaller sites in the .com space. Its frequent pairing with customer service platforms like Zendesk means that senders targeting niche markets may encounter TopDNS inboxes more often than overall statistics suggest, warranting specific testing consideration in vertical-specific campaigns.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 3.3% |
| Top 100,000 | 1 | 3.3% |
| Top 1,000,000 | 25 | 83.3% |
| Unranked | 3 | 10.0% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 23 | 76.7% | |
| .org | 3 | 10.0% | |
| .tf | 1 | 3.3% | |
| .app | 1 | 3.3% | |
| .eu | 1 | 3.3% | |
| .pm | 1 | 3.3% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 30 domains.
| Type | Service | Domains | Share of TopDNS users |
|---|---|---|---|
| ESP | Zendesk | 1 | 3.3% |
TopDNS is commonly deployed alongside Zendesk and similar customer service platforms, indicating its adoption among smaller, service-oriented businesses. This concentration means that campaigns targeting these sectors will likely interact with TopDNS-routed inboxes at higher rates than the provider's overall market share would suggest.
See the full TopDNS data page (KPI cards, trend, sample domains) →
TopDNS is a managed email infrastructure service used primarily by smaller businesses, particularly those running customer service platforms. While not a top-tier provider by overall volume, its concentration in specific business verticals and the .com space makes it worth testing if your campaigns target those markets.
30 domains in the Tranco top-1M use TopDNS as their mailbox provider as of July 13, 2026 (0.00% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
TopDNS accounts for 0.00% 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.
TopDNS's largest TLD is .com (76.7% of its domains); it appears across 6 TLDs in total.