Hosting check
Who hosts proton.me?
proton.me is hosted by Proton AG. DNS by proton.me. Email by Proton Mail.
Checked 12 Oct 2026 at 12:39 UTC
Server
Anycast: nearest of many locations
185.70.42.45
Proton AG 路 AS62371
馃嚚馃嚟Plan-les-Ouates, Switzerland
Checks
6 of 7 checks pass
Warnings are worth a look, but nothing is broken.
Hosting provider
High confidence
Proton AG
Business networkAS62371. A known platform or a plain hosting network answered, so the host is certain.
- Network
Proton AGAS62371 路 185.70.42.0/24proton.me
Owns the IP address that answered our lookup.
How we know
1 signal
- NetworkAS62371Proton AG
IP & network
185.70.42.45 路 Plan-les-Ouates
- IP address
- 185.70.42.45
- Reverse DNS
- 185-70-42-45.protonmail.ch
- Network
- Proton AGAS62371 路 business
- Route
- 185.70.42.0/24
- Location
- Plan-les-Ouates, Geneva, SwitzerlandAnycast: where our lookup landed
- Timezone
- Europe/Zurich
This is an anycast address: many locations announce it, and each visitor reaches the nearest one. The location above is only where our lookup landed.
Coordinates, postal code and company
Geolocation describes the network's registered location, not a street address. For a data center IP the postal code and coordinates are approximate.
- Coordinates
- 46.1679,6.1166
- Postal code
- 1228
- Country code
- CH
DNS records
19 records in 6 types
- A
1 record
IPv4 addresses the name points to
- 185.70.42.45
- NS
3 records
Nameservers that answer for the zone
- ns1.proton.me
- ns2.proton.me
- ns3.proton.me
- MX
2 records
Mail servers, lowest priority first
- 10 mail.protonmail.ch
- 20 mailsec.protonmail.ch
- CAA
2 records
Certificate authorities allowed to issue certificates
- 0 issue "letsencrypt.org"
- 0 issue "sectigo.com"
- SOA
1 record
Zone authority: primary nameserver, admin mailbox and timers
- ns1.proton.me support.proton.me 2026073635 1200 144 1814400 7200
- TXT
10 records
1 SPF policy, 9 ownership proofs
- yandex-verification: 95a7888a0f987e6a
- v=spf1 include:_spf.protonmail.ch ~all
- linkedin-site-verification=01e79150-bf68-4e0c-ad04-822dc1015b3b
- protonmail-verification=5262a92f988e64f1be1362138befdf1e19d6a4c1
SSL certificate
- Status
- Valid certificateTrusted by browsers and covers proton.me. Expires in 50 days.
- Issuer
- Let's Encrypt (YR2)
- Common name
- proton.me
- Protocol
- TLSv1.3
- Valid from
- September 2, 2026 at 01:13 PM UTC
- Valid to
- December 1, 2026 at 01:13 PM UTCExpires in 50 days
Covered hostnames
5 names
- *.pr.tn
- *.proton.me
- *.storage.proton.me
- pr.tn
- proton.me
Certificate chain
4 certificates
proton.me
Server certificate 路 Issued by Let's Encrypt (YR2) 路 Valid to 01 Dec 2026
Let's Encrypt (YR2)
Intermediate 路 Issued by ISRG (Root YR) 路 Valid to 02 Sept 2028
ISRG (Root YR)
Intermediate 路 Issued by Internet Security Research Group (ISRG Root X1) 路 Valid to 02 Sept 2032
Internet Security Research Group (ISRG Root X1)
Root 路 Valid to 04 Jun 2035
Serial number and fingerprints
- Serial number
- 0637C28D4F35BB559147FA3662509EB2E1E2
- SHA-256
- D2:FD:7C:F0:62:71:F4:D7:73:C0:CC:78:7F:20:49:3C:9F:16:23:0E:E8:A9:F4:64:C5:E5:5E:BC:1F:B5:C7:57
- SHA-1
- 5F:9C:74:43:E8:A4:27:AA:CF:93:31:4A:41:7D:BE:A7:92:1A:B1:91
Domain registration
Registered 10 Oct 2010
Expires in 729 daysRegistration data for proton.me, from the registry's RDAP or WHOIS service.
- Registrar
- MarkMonitor Inc.IANA ID 292
- Registrant
- Proton AGCH
- Registered
- 10 Oct 201016 years old
- Expires
- 10 Oct 2028Expires in 729 days
- Last updated
- 13 Sept 2026
- DNSSEC
- Signed
- Abuse email
- abusecomplaints@markmonitor.com
- Abuse phone
- +1.2083895740
Status
Nameservers
3 nameservers
- ns1.proton.me
- ns2.proton.me
- ns3.proton.me
Source:whois.nic.me (WHOIS)
Run this lookup from code
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