Stibee email service provider (ESP)

According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Stibee is the email service provider (ESP) for 331 domains — 0.05% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.

Key facts

Stibee is an email marketing platform that provides campaign management, automation, and list-management tools for email senders. The service facilitates email sending, tracking, and subscriber handling for marketing and transactional email workflows.

Stibee appears primarily on smaller sites across many international domains, with strong representation on .com and related TLDs. Its frequent co-occurrence with Google Workspace in SPF configurations suggests it serves as a dedicated email-sending service for organisations using Google's business email platform.

Where Stibee sits in the Tranco ranking

Tranco rank bandDomainsShare of its base
Top 1,00010.3%
Top 10,00092.7%
Top 100,0004313.0%
Top 1,000,00024373.4%
Unranked3510.6%

Top-level domain split

TLDDomainsShare
.com12939.0%
.co.kr8124.5%
.kr4714.2%
.io185.4%
.net164.8%
.ai103.0%
.org61.8%
.me41.2%
.team20.6%
.jp20.6%

What Stibee users also use

Cross-tabulated from the same daily snapshot — the other email services seen on the same 331 domains.

TypeServiceDomainsShare of Stibee users
MailboxGoogle Workspace18555.9%
MailboxSelf-Hosted5316.0%
MailboxMicrosoft 365267.9%
MailboxUnknown / Other175.1%
MailboxNaver Works Mobile (LINE)133.9%
MailboxHiworks (KR mailbox)72.1%
ESPAmazon SES6218.7%
ESPZendesk226.6%
ESPMailgun123.6%
ESPMailchimp113.3%

Stibee in Multi-ESP Environments: Reputation and Authentication

When Stibee shares a domain with Google Workspace or another email service, both platforms must be authenticated in the domain's SPF record. The domain's email reputation is built collectively across all sending paths; a sustained deliverability problem from one service can influence how mailbox providers assess traffic from the entire domain.

See the full Stibee data page (KPI cards, trend, sample domains) →

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Frequently asked questions

What is Stibee?

Stibee is a platform that enables organisations to send email marketing campaigns and transactional messages at scale. If you see Stibee in domain email infrastructure—such as in SPF records or email logs—it indicates that organisation uses Stibee to manage and send their email.

How many domains use Stibee?

331 domains in the Tranco top-1M use Stibee as their email service provider (ESP) as of July 13, 2026 (0.05% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.

Is Stibee common enough to affect email deliverability testing?

Stibee accounts for 0.05% 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 Stibee most?

Stibee's largest TLD is .com (39.0% of its domains); it appears across 25 TLDs in total.

Other email service provider (ESP)s

Amazon SES (6.21%)SendGrid (Twilio) (4.76%)Mailgun (4.11%)Zendesk (3.86%)Mailchimp (3.69%)Mandrill (3.36%)HubSpot (3.18%)Salesforce (2.62%)Mailjet (Sinch) (2.13%)Cloudflare Email Routing (1.80%)