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IT AI Index
Index › Products › Proton Mail · October 2026 Edition
Proton · 2 categories · Named, not ranked

Proton Mail

4Judge labels
0First choices
0Negative labels
3 / 14Models named it
2Categories
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10.8, every buyer segment counted.
Standing
2 labels, too few to rank
A product needs 10 labels in a category before a share or quadrant is stated. Proton Mail was named 2 times in Client-side protection and 1 other category, where cside led with 13%. The labels and the evidence are below, counted exactly.
By buyer segmentRead the same way at every buyer size.
In client-side protection · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Proton Mail for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrantSince September 2026
Client-side protectionSecurity operations0%63 of 1200%1under 10 labels · led by cside at 13%
Email securitySecurity operations0%31 of 760%1under 10 labels · led by Microsoft Defender for Office 365 at 32%=heldSince September 2026: 0% → 0%, ±0 points. Inside the 11-point floor: within noise. Read over the models both editions asked.

Movement

This is the first edition on this tier, so no move can be computed for Proton Mail yet. From the next edition this section shows, per buyer segment and per category, whether its share moved by more than the measured noise floor.

By model

How each model treated Proton Mail across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
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ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.500000
GPT-5.4 mini00000
Gemini 3.5 Flash02002
Perplexity Sonar00000
Grok 4.2000000
Mistral Small00000
DeepSeek V4 Flash00000
Llama 4 Maverick00000
Qwen 3.7 Flash00000
Kimi K200000
GLM 4.7 FlashX00000
MiniMax M2.500000
GPT-6 Luna00000
Muse Glimmer 30B00000

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct0 labelsNone
Paraphrase0 labelsNone
Comparative0 labelsNone
Budget-constrained2 labelsNone
Scale-constrained0 labelsNone
Negative2 labelsNone
First choiceAlternativeMentionNegative4 labels in all, every segment counted; 0 of the 0 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Use communication platforms that fiercely resist CSS mandates (like Signal or Proton Mail)” Gemini 3.5 Flash · Client-side protection · negative prompt · alternative
“Move to privacy-first, encrypted email services such as Proton Mail or Tuta.” Gemini 3.5 Flash · Email security · negative prompt · alternative

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

No model argued against it.

Named alongside

The products named in the same answers as Proton Mail, over the 4 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Proton Mail was named but was not.
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ProductSame answerTook the first choice insteadHead to head
Mimecast Email Security3 of 40Not among the top eight
Google Workspace2 of 41Not among the top eight
Microsoft Defender for Office 3652 of 41Not among the top eight
Proofpoint Email Protection2 of 40Not among the top eight
Zoho Mail2 of 40Not among the top eight
Abnormal AI1 of 41Not among the top eight
Check Point Harmony Email & Collaboration1 of 41Not among the top eight
Microsoft 3651 of 41Not among the top eight
Sublime Security1 of 41Not among the top eight
uBlock Origin1 of 41Not among the top eight
A head-to-head page exists where both products are among a category's top eight. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Proton Mail. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 4 of the 4 answers that named Proton Mail and are not a share of its labels.

Domains cited

reddit.com2
academic.oup.com1
adaptivesecurity.com1
allaboutcookies.org1
barracuda.com1
bizbot.com1
bleepingcomputer.com1
blog.mailfence.com1
comparitech.com1
cside.com1

Eleven of the eleven domain citations in answers naming Proton Mail came from somebody else's page.

Pages cited

Pages are listed as the models cited them.

Search and answers

proton.me is not in Google's top ten for any of the category's searches. In the answers, Proton Mail takes 0% of first choices and cside takes 13%.
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In search

Google, US estimates
Position for “client-side protection tool”
–
not in the top ten
Position for “client-side protection tools”
–
not in the top ten
Its company's site
proton.me shared with Proton's other products; the figures are the site's
Organic visits to its site
about 3,125,854 a month
Searches its site ranks for
38,338 · 4,353 in the top three
Sites linking to it
46,001
Paid Google search
No ads found in the estimate; that does not mean it runs none
Ads on GoogleDetailLess
120+ ads · 101 text, 11 image, 8 video · 120 shown in the last 30 days

First shown August 2024, as Proton AG, verified. Ads started 2025-10 to 2026-09: 81 in the year, 39 before.

On Google's pages: 1 2 3 4

In answers

This edition
Share of first choices
0%
rank 63 of 120 in client-side protection
Segment leader
13%
cside
First choices
0 across its categories
Named in
4 answers
Its own site cited
in 4 of the answers that named it

Search figures are US estimates from DataForSEO, read September 28, 2026; AI search demand is its modeled, directional estimate, not a count of queries to any assistant. The answers are this edition's. Two measurements side by side: neither is read as the cause of the other.

Follow Proton Mail

An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.

Already following? Everything you follow, with a stop for each.

The company

Proton is the company behind Proton Mail.
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On record

Company records

In its own words

Stated by the vendor, not checked
Positioning
Secure email that protects your privacy
For
People who use desktop email clients and want Proton Mail with end-to-end encryption
Price stated
Proton Mail Bridge is available only with a paid plan that includes Proton Mail. proton.me/mail/bridge
Starting price
3.99/month proton.me/mail/proton-mail-vs-gmail
Free plan or trial
Create a free account; Free trial proton.me/mail/download
Certifications
ISO 27001HIPAAGDPR
Hosting
SwitzerlandGeneva, SwitzerlandSuiza
Not stated on the pages read
Integrations, customers

What Proton Mail's own pages state, read October 6, 2026: proton.me/mail/bridge, proton.me/mail/download, proton.me/mail/proton-mail-vs-tuta, proton.me/mail/proton-mail-vs-gmail, proton.me/es-419/mail/proton-mail-vs-tuta. A claimed page can correct any of them.

Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Proton Mail's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Proton Mail, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

What a new claim receivesHide what a new claim receives

A new claim receives the current edition's vendor brief for Proton Mail by email, built from the raw record of the edition. It shows:

  • where Proton Mail is named, by buyer and by framing, and which cells hold its first choices;
  • the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
  • its vocabulary against the segment leader's, and the pages the models cited;
  • who was chosen in the answers that did not name Proton Mail, and every reason the record gives;
  • a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
  • one page of published figures cleared to show a buyer.
The subscriber app

A verification link goes to your work email; an address at proton.me is approved on the spot, any other is reviewed by hand. Your email is never published. Claiming gives no say over labels, shares, verdicts or which quotes appear.