AWeber email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 14, 2026), AWeber is the email service provider (ESP) for 294 domains — 0.05% of 637,677 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 294 domains in the Tranco top-1M use AWeber (0.05% of SPF-publishing domains).
- Snapshot date: 2026-09-14 — recomputed every day.
- Strongest TLD: .com (75.5% of its domains).
- Most co-used service: Google Workspace.
- Directory category: email service provider.
Why AWeber appears in this category
Veteran small-business newsletter platform.
We classify it as a email service provider from include: mechanisms in the SPF record matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
AWeber is an email service provider and marketing automation platform that enables businesses to build and send campaigns and automate customer communications. It is operated by AWeber Communications Inc., a US-based company.
AWeber's footprint across the internet is distributed across the long tail of smaller websites rather than concentrated among the largest global brands; it is predominantly found in .com domains. The frequent co-occurrence of AWeber alongside Google Workspace suggests positioning in the small-to-medium business segment. For email administrators and deliverability professionals, understanding this footprint pattern matters: senders using AWeber are likely SMBs with varied authentication practices and less-established sender reputation than enterprises, meaning that AWeber's infrastructure reputation becomes a shared factor in inbox placement decisions.
Where AWeber sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 0.3% |
| Top 100,000 | 32 | 10.9% |
| Top 1,000,000 | 258 | 87.8% |
| Unranked | 3 | 1.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 222 | 75.5% | |
| .org | 12 | 4.1% | |
| .co.uk | 7 | 2.4% | |
| .fr | 6 | 2.0% | |
| .net | 6 | 2.0% | |
| .ca | 6 | 2.0% | |
| .ro | 5 | 1.7% | |
| .it | 4 | 1.4% | |
| .de | 3 | 1.0% | |
| .se | 3 | 1.0% |
What AWeber users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 294 domains.
| Type | Service | Domains | Share of AWeber users |
|---|---|---|---|
| Mailbox | Google Workspace | 146 | 49.7% |
| Mailbox | Self-Hosted | 48 | 16.3% |
| Mailbox | Microsoft 365 | 33 | 11.2% |
| Mailbox | Migadu | 10 | 3.4% |
| Mailbox | Unknown / Other | 6 | 2.0% |
| Mailbox | Zoho Mail | 5 | 1.7% |
| ESP | Amazon SES | 27 | 9.2% |
| ESP | SendGrid (Twilio) | 23 | 7.8% |
| ESP | Mailgun | 19 | 6.5% |
| ESP | Zendesk | 13 | 4.4% |
SPF infrastructure and reputation inheritance
When a smaller business uses AWeber to send email, it publishes an SPF include mechanism that authorises AWeber's infrastructure on that domain's behalf. This creates an authentication and reputation chain: the receiving mail server verifies SPF compliance, but inbox placement also factors in the infrastructure's history. Because AWeber's customer base is concentrated in smaller businesses with varied authentication practices and less-established sender reputation, the reputation of AWeber's infrastructure itself becomes a shared factor in deliverability outcomes.
See the full AWeber data page (KPI cards, trend, sample domains) →
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Frequently asked questions
What is AWeber and why does it appear in SPF records?
AWeber is an email marketing platform used by smaller businesses to send campaigns and automate communications; it appears in SPF records because senders' domains authorise AWeber's mail infrastructure via SPF include mechanisms. AWeber's infrastructure reputation is shared across its customer base, so authentication and reputation practices at the platform level affect inbox placement for all senders using it.
How many domains use AWeber?
294 domains in the Tranco top-1M use AWeber as their email service provider (ESP) as of September 14, 2026 (0.05% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is AWeber common enough to affect email deliverability testing?
AWeber 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 AWeber most?
AWeber's largest TLD is .com (75.5% of its domains); it appears across 29 TLDs in total.