Trustpilot SaaS sender
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), Trustpilot is the SaaS sender for 1,851 domains — 0.29% of 629,828 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 1,851 domains in the Tranco top-1M use Trustpilot (0.29% of SPF-publishing domains).
- Snapshot date: 2026-09-12 — recomputed every day.
- 30-day share change: -0.01 pp.
- Strongest TLD: .com (44.4% of its domains).
- Most co-used service: Google Workspace.
- Directory category: SaaS sender.
Why Trustpilot appears in this category
Trustpilot — Danish consumer review platform that sends review-invitation emails on behalf of merchants.
We classify it as a SaaS sender 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.
Trustpilot is a SaaS platform that enables organisations to collect, manage, and display customer reviews. It sends review solicitation emails, notification messages, and review digests on behalf of its client businesses — meaning Trustpilot's email infrastructure handles the transmission whilst the client brand maintains the sender identity in the customer's inbox.
Analysis of SPF authorisation records across the web reveals Trustpilot concentrated in smaller-to-mid-market domains rather than the largest global brands, with notable prevalence in .com registrations. This footprint pattern frequently overlaps with Google Workspace adoption, suggesting appeal to lean, digitally native organisations. For email professionals and security teams, Trustpilot's presence in SPF records is a signal of third-party review-collection infrastructure — relevant for authentication policy decisions and for identifying legitimate sending channels that should not be treated as spoofed.
Where Trustpilot sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 4 | 0.2% |
| Top 10,000 | 10 | 0.5% |
| Top 100,000 | 226 | 12.2% |
| Top 1,000,000 | 1,602 | 86.5% |
| Unranked | 9 | 0.5% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 822 | 44.4% | |
| .co.uk | 241 | 13.0% | |
| .nl | 136 | 7.3% | |
| .de | 96 | 5.2% | |
| .dk | 79 | 4.3% | |
| .fr | 67 | 3.6% | |
| .it | 46 | 2.5% | |
| .se | 40 | 2.2% | |
| .be | 29 | 1.6% | |
| .es | 28 | 1.5% |
What Trustpilot users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 1,851 domains.
| Type | Service | Domains | Share of Trustpilot users |
|---|---|---|---|
| Mailbox | Google Workspace | 698 | 37.7% |
| Mailbox | Microsoft 365 | 640 | 34.6% |
| Mailbox | Unknown / Other | 118 | 6.4% |
| Mailbox | Self-Hosted | 78 | 4.2% |
| Mailbox | Mimecast | 44 | 2.4% |
| Mailbox | MailAnyone / VIPRE Email Security | 32 | 1.7% |
SPF authorisation and Trustpilot's distributed sender infrastructure
Organisations using Trustpilot add SPF include mechanisms to their DNS records to authorise Trustpilot's sending servers. The platform maintains multiple sending endpoints rather than a single consolidated mail server pool, which means review emails from different clients originate from separate infrastructure. This distribution limits the risk that one client's sending misconfiguration or reputation problem cascades to damage the sender reputation of unrelated Trustpilot users. For receivers and email administrators, this design means monitoring Trustpilot's SPF ranges requires ongoing awareness of potential changes to the published mechanisms — especially as Trustpilot's client base and geographic reach evolve.
See the full Trustpilot data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Is Trustpilot email a common phishing or spoofing threat?
Trustpilot is a legitimate third-party email service, and organisations authorise its sending infrastructure via SPF. However, review solicitations themselves are frequent phishing lures, so receivers should verify that authentic Trustpilot mail is properly authenticated — any unsigned or SPF-failing email purporting to be a review request warrants scrutiny.
How many domains use Trustpilot?
1,851 domains in the Tranco top-1M use Trustpilot as their SaaS sender as of September 12, 2026 (0.29% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Trustpilot common enough to affect email deliverability testing?
Trustpilot accounts for 0.29% 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.
Is Trustpilot growing or declining?
Trustpilot has been stable — its share moved -0.01 pp over the last 30 days (as of September 12, 2026).
Which countries or TLDs use Trustpilot most?
Trustpilot's largest TLD is .com (44.4% of its domains); it appears across 80 TLDs in total.