AIRANKS — The Authoritative Rankings for AI Web Content

AIRANKS measures AI visibility: we ask AI models real product and service questions, capture the complete answers as immutable observations, and publish what they contain — which brands were mentioned, which domains were cited, and which exact pages were linked. Every domain gets an AIR score from 1–10 (a decile of visibility in the active dataset; 0 means insufficient data), with the methodology in the open.

AIR

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The Question

← all rankings / dataset COBALT

What is the best paid email service

Fastmail takes the top spot in 100.0% of resamples. Of 14 ranked brands, only 7 hold a position we'd call firm.

0
answers sampled
0
brands named
1,000
bootstrap resamples

Who AI Cites For This Question

25 cited pages · bars vs the leader

Create a free email account or choose a paid plan | Protonproton.meproton.me/mail/pricing?utm=airanks.net327
Compare Flexible Pricing Plan Options | Google Workspaceworkspace.google.comworkspace.google.com/pricing?utm=airanks.net161
Create a free email account today | Tutatuta.comtuta.com/pricing?utm=airanks.net46
Upgrade Outlook with Microsoft 365 | Microsoft 365www.microsoft.commicrosoft.com/en-us/microsoft-365/…ng?utm=airanks.net33
Microsoft 365 Business Basic: What’s Includedwww.microsoft.commicrosoft.com/en-us/microsoft-365/…ic?utm=airanks.net32
Compare Flexible Pricing Plan Options | Google Workspaceworkspace.google.comworkspace.google.com/pricing?hl=en32
Plans & Pricing to Upgrade Your Cloud Storage - Google Oneone.google.comone.google.com/about/plans?utm=airanks.net32
Understand Google Workspace bills & charges  |  Billing & subscriptions  |  Google Workspace Helpknowledge.workspace.google.comknowledge.workspace.google.com/adm…es?utm=airanks.net30
Business editions  |  Getting started  |  Google Workspace Helpknowledge.workspace.google.comknowledge.workspace.google.com/adm…ns?utm=airanks.net22

The Ranking, With Its Uncertainty

Fastmail locked Fastmail — ci 1.00–1.00 · n=372 · 100.0% of resamples held this rank · named in 100% of answers
Proton Mail locked Proton Mail — ci 0.92–0.92 · n=372 · 100.0% of resamples held this rank · named in 97% of answers
Gmail locked Gmail — ci 0.85–0.85 · n=372 · 98.7% of resamples held this rank · named in 74% of answers
Outlook locked Outlook — ci 0.77–0.77 · n=372 · 98.7% of resamples held this rank · named in 65% of answers
iCloud Mail locked iCloud Mail — ci 0.69–0.69 · n=372 · 100.0% of resamples held this rank · named in 23% of answers
Thunderbird firm Thunderbird — ci 0.54–0.62 · n=372 · 92.6% of resamples held this rank · named in 13% of answers
Tuta firm Tuta — ci 0.54–0.62 · n=372 · 92.6% of resamples held this rank · named in 11% of answers
Mailbox.org soft Mailbox.org — ci 0.38–0.46 · n=372 · 71.5% of resamples held this rank · named in 4% of answers
Zoho gathering Zoho — gathering data, n=372. No bootstrap interval yet.
Brevo gathering Brevo — gathering data, n=372. No bootstrap interval yet.
Mailchimp gathering Mailchimp — gathering data, n=372. No bootstrap interval yet.
Yahoo Mail gathering Yahoo Mail — gathering data, n=372. No bootstrap interval yet.
Klaviyo gathering Klaviyo — gathering data, n=372. No bootstrap interval yet.
ConvertKit gathering ConvertKit — gathering data, n=372. No bootstrap interval yet.

The Incomparability Lattice

what the intervals separate, not what the list claims

An edge means one brand's interval sits strictly above another's — zero overlap. No edge between two brands is not a gap in the drawing, it is the finding: their intervals overlap, and the bootstrap cannot tell them apart. Brands on the same rung are incomparable, not tied — the ranking above orders them anyway because a list has to print a total order; this diagram is the honest version.

Fastmail

1.00–1.00

Proton Mail

0.92–0.92

Gmail

0.85–0.85

Outlook

0.77–0.77

iCloud Mail

0.69–0.69

Thunderbird

0.54–0.62

Tuta

0.54–0.62

Mailbox.org

0.38–0.46