Proton Mail on new websites

1. Proton Mail appeared on about 2,500 new sites in the last 30 days.^[1]
2. It is unusually common on .io domains: 4.4% of the domains running it, against 1.5% of domains across new sites.

The line is the 7-day average share of new sites that use Proton Mail, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Google Workspace	5.7%	19.9%
2	–	Hostinger Email	4.8%	16.6%
3	–	GoDaddy Email	2.3%	7.9%
4	–	Microsoft 365	2.0%	6.9%
5	▲1	IONOS Email	1.7%	5.9%
…
22	▼5	Proton Mail	0.2%	0.6%

All-time shares across the new sites we track: of all of them, and of the sites using any Email Hosting tool. The most common alternatives to Proton Mail on new websites are Google Workspace and GoDaddy Email. Among September launches it ranked #24 in Email Hosting, down from #19 in August. All 4856 in Email Hosting

3,421 of the 10,141 sites using Proton Mail are product launches we list individually. The other 6,720 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
Sovware — sovereign software sovware.io · Developer Tools	Oct 19
Clinic Assistant · El asistente IA para clínicas de medicina estética clinicassistant.io · Health · Spain	Oct 19
Kai — AI Agents that carry your context kogniv.net · AI	Oct 19
WelFairy · Every benefit people are owed. Automagically. welfairy.com · Finance	Oct 19
On va où ? onvaou.org · France	Oct 19
JSON, XML & YAML Formatter and Validator | Formattr formattr.tools · Developer Tools	Oct 19
Zwart op Wit – reistoestemming en afspraken voor ouders, getekend op afstand zwartopwit.online · Content	Oct 19
Nova: the AI receptionist that keeps your calls private nova-agents.ai · United Kingdom	Oct 19
Vibe Code Review: Security Check for AI-Built Apps | Slop Medic slopmedic.com · AI · Switzerland	Oct 19
Trota — gestão para clínicas e profissionais de saúde trota.com.br · Brazil	Oct 19
OmmiQ ommiq.com · Productivity · Germany	Oct 19
per.hr per.hr · Productivity	Oct 19

Showing the most recent 12 of 3,421.

Watches, exports and the API give you all 10,141 sites using Proton Mail, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
3. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.