According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Everbridge is the SaaS sender for 107 domains — 0.02% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Everbridge is a SaaS platform that handles email dispatch and communications relay on behalf of client organisations. It authorises client domains via SPF records, allowing Everbridge's infrastructure to send messages that authenticate under those domain names, particularly for high-volume operational and crisis notifications.
In practice, Everbridge appears as an SPF include mechanism in smaller to mid-market domains—concentrated in .com space and often coexisting with Microsoft 365 in the same domain's email infrastructure. For senders using Everbridge, domain deliverability depends partly on Everbridge's collective sender reputation across its user base; for receivers and security teams, its presence in SPF records signals that email may originate from shared infrastructure, which is relevant context when evaluating sender authenticity.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 2 | 1.9% |
| Top 10,000 | 6 | 5.6% |
| Top 100,000 | 32 | 29.9% |
| Top 1,000,000 | 66 | 61.7% |
| Unranked | 1 | 0.9% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 55 | 51.4% | |
| .gov | 17 | 15.9% | |
| .org | 13 | 12.1% | |
| .edu | 9 | 8.4% | |
| .ca | 4 | 3.7% | |
| .net | 2 | 1.9% | |
| .co.uk | 2 | 1.9% | |
| .org.uk | 1 | 0.9% | |
| .us | 1 | 0.9% | |
| .bank | 1 | 0.9% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 107 domains.
| Type | Service | Domains | Share of Everbridge users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 54 | 50.5% |
| Mailbox | Proofpoint | 19 | 17.8% |
| Mailbox | Mimecast | 11 | 10.3% |
| Mailbox | Google Workspace | 10 | 9.3% |
| Mailbox | Cisco IronPort | 3 | 2.8% |
| Mailbox | Barracuda | 3 | 2.8% |
When Everbridge authorises a domain via SPF, that domain's email reputation becomes intertwined with Everbridge's collective IP space reputation. Any list-quality issues, complaint patterns, or misuse by other Everbridge customers can impact delivery of your own mail, even if your sending practices are sound. This is the fundamental trade-off of third-party email relay platforms: operational convenience and scalability versus independence from other senders' behaviour and reputation decisions by mailbox providers.
See the full Everbridge data page (KPI cards, trend, sample domains) →
It means that domain has authorised Everbridge to send mail on its behalf via a third-party relay service. For mailbox provider reputation scoring and sender authentication, this matters because filtering and acceptance decisions apply to Everbridge's IP space as a whole, not just to that individual domain.
107 domains in the Tranco top-1M use Everbridge as their SaaS sender as of July 13, 2026 (0.02% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Everbridge accounts for 0.02% 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.
Everbridge's largest TLD is .com (51.4% of its domains); it appears across 12 TLDs in total.