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Total

DNS

100

Email

Security

Network

100

Availability

Domainproton.me

IPv41

IPv60

MX records2

StatusActive

Domain technical report

Proton: Privacy by default

proton.me

Over 100 million people use Proton to stay private and secure online. Get a free Proton account and take back your privacy.

Generated: 2026-08-08T22:44:01-05:00 · Cached result

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IPv41

IPv60

MX2

NS3

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

3 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓

CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

2 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

✓

MTA-STS5 / 5 pts · Mail

Mail transport policy.

✓

TLS-RPT5 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

59 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: 185-70-42-45.protonmail.ch

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

185.70.42.45

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

10 mail.protonmail.ch.
20 mailsec.protonmail.ch.

TXT

10 record(s)

"yandex-verification: 95a7888a0f987e6a"
"google-site-verification=QviHfE1VQ57-tDmDLxM6BQH1mdgvdQ_0QsIvCht2IaU"
"zoom-domain-verification=ZOOM_verify_5990c1fbb09d4c6aba062cded6cbdf06"
"linkedin-site-verification=01e79150-bf68-4e0c-ad04-822dc1015b3b"
"protonmail-verification=5262a92f988e64f1be1362138befdf1e19d6a4c1"
"google-site-verification=2FGIDo-Gf-lWE6t_gWd9gpPTehHD85hbNiEujPVgysc"
"google-site-verification=4UIZgETX8lGnv0WwpeJJbszo9daKOdXXYBKCA2XLf94"
"google-site-verification=_ayl1WqWIag2WkIbK4sNg_x3NCT5nYOl_DgtFPTYKeg"
"v=spf1 include:_spf.protonmail.ch ~all"
"google-site-verification=MUjtKY-4uQAjE92Z2-s1nm9m4mvdqY2z6HCvi_Bj4so"

NS

3 record(s)

ns2.proton.me.
ns1.proton.me.
ns3.proton.me.

SOA

1 record(s)

ns1.proton.me. support.proton.me. 2026073086 1200 144 1814400 7200

CAA

2 record(s)

0 issue "letsencrypt.org"
0 issue "sectigo.com"

DS

1 record(s)

12382 8 2 0EBDDED04FA7BE35B5262D6B34F6A047B3105B15C2B69BC5544087D5 B9D6E26B

DNSKEY

2 record(s)

257 3 8 AwEAAbTBsAv0iLidN9T4BG9PTwMC5YcuVTgkLzXfH+nqyX5N3G/O3Ehu eazmAoC/eaKOHQnE3uubit3PggDRkNXcM6ifVfBYISblnB3uOSy6PtwT OzdRFz+UjzfUFnssIRr3da8XQL1q3lcE+hd+lO3E6YfQvJPsShcDdG0R 8C+ZthZryW1859qEPItJLOATTDosHcVJYYA7nmPolUhhoifwRBwXm06V 2fPNMtuvO1Q5oVxbJc16/5W4yCCwiT+SVO9NvIPAvv1TAFfwBZGcNCrY yiz5++NFlY6sYqrQrRiJWnWKBuXA1Nsh30OHPjG0jHWsPxD8yLeMb6Ed LYTgkwJryac=
256 3 8 AwEAAcWRrkoJqJhvJhoeoUlk7dUj4by2WK8fgCeSsL8qxMJ6Q+nyR9FE /yDEfI8y48CZpBmQE+kOxmq2LifappLnG7MebFhkGQpeHRxzkiMFYDnG xZ2k9gSNeMqhtw4GQouBGbZq1IZbo+hWH3sHnaoJPc5/nAbkV2PpUawZ 8ZMc+0L4bJV916ThvI67BdtPggzsfAG46EEnMFOTmv288tFiCGXbPJPN X/LyTqwWmNYXU5XxblEQ6TzkFE/5P1i6neX7ke9PLeTsF9PJGftuirbt LY80Yq1KgyceLgICEaKd+UWkC5u4EXjdc+Tl39bP3gRzGhs5lSdmfrRi IO3X80ifz2c=

RRSIG

6 record(s)

DNSKEY 8 2 1200 20260830002624 20260731001744 12382 proton.me. pucoG5X5plxBmAIjq8mV1o3r3ANKFdsmeZ7pW4uQ08FAWP5XOJca7B6R lDW5MJRxk3OuviGtAj7L6fp+K9L+hztQndZGVdJ8lb8gl2DRAonKqS6E aOKtQlxNjfHHnOop4nP4Qx/9iPVTEKySNqyBFOJBMTBHRkZi67YbTn9f PEH31Qj6XKU2enubZoNIfdaTqmEwV3C9acvhUIBaUxyLz7BTXjUP950s HW9Mwt/ibLWPCbRRaEUB1D0ox1mxeyz5EnZ9o6IGftG87Cs+iU43NG6G dJQfnCi/lewYAMQxoziSxZ+/wo99YBWsefddOp4dldRRSGRApaboqsrt Zk/S+A==
DNSKEY 8 2 1200 20260830002624 20260731001744 31839 proton.me. NrEGNZ5iQ0SFZs/6a5FcL7JF/RsMkHJH/pdzZhRaBQpSnI62JQFR/A1E mdsutnTwLRvGlio2ocP/tw0Mzus+ndKdswpN22dKDAe7HQkU978Kd6HJ aAX2l8nrnZgBLkSPw1BD8ADZ3q9+txpWntVR7yWFuSGFVJrf/BRDsg8O Z7N54n5wVAmyxfyTT1lQN9bAmDVJuizGWxI4rWHZpUwH46rsSLmVKRoX i24OQrjR5tW9byCJ92aFm7DzmnUnyLzzsK7XW+UBwRY/141pHm8lpYZj cDc2ywTVoTBoP+7k0m054K5bs3DYGzZKgFxgAXIRCFz+WBG8Mprk3/af Y0MJmA==
NS 8 2 1200 20260822200730 20260723191851 31839 proton.me. g+90wb6iN3fUOdWVRw5JlmaXWb5SL1B1x4MgL9xge/Zw6ZOwmFnrUNaK omFjrA+hMBTeR3j6jkknfP05oV3XzlpRghFYU2jmbf8a4mq5xFMU9+iR HSxfBTz2LdU7c7vXoLy3WCmTKcoQpzvnnjBG6m54NrIGofB29C1GcjFm d2eZ7ABGSs2CJYzZsyZwnO8Z9esbFiJThsX8pjIeOWY7tBNk21vU+uKJ +i/JU3vA8/UWCbh+dQPAgDMkZY4BjcBTF1t49f1AAHd6wwlFKuvrN4mX yupWDhLHIq/3uNI3lsQOU6DtxqhubysBw8vgAWsfJDlAqIbr45Of5LYj LgIbWQ==
MX 8 2 1200 20260822200730 20260723191851 31839 proton.me. Rw4j25Q7eEDYDA4c9Y/ETzCbEBQ4wCxWCvRMgzNkIWmrHadCnMIUu9ZG EqGzu5N3C4crkkM6kvur8rXdqz1317+C9j1/xJaBQw4AiFzerjtnikg3 47dz2sbWGwTFhD+ufflDX8dS62glWc2D9ii5qXYB7TOmsb4cDaZ1Zl2f 7zbfnfpo/83exsPit11+vZaKjb4ynV6ZlUwGGw5F7Q9f5CzsTumSr8DL Qhor2sTxDj3xAcoKUmvM1JPuQiAmBTDKelQJcJ3Xeo43ThELypNDpKaC N67rDPr9YfoFXmClJ9wGOlDrUQBhedH0wic1OXxer/Rs66JreQ0UOXmB hNj6Rw==
DS 8 2 3600 20260822155254 20260801145254 20481 me. IGz4Wx00F+f3Vo/g8GicptnmKNMCvVvjB3lVrf//k1be0rYGR6BRO+Uu NEpcigyH4G1avZwQreRgp2Z5ODPZ1u/rGbak6x9bCzygylLkxELlc5rD k2P3Xux1QnoIyFJmcevGJx1tQ5+wxGctW1xanjr/a7DGQsV5El7Jtzlr WhI=
CAA 8 2 1200 20260822200730 20260723191851 31839 proton.me. DbdtiDXD4QOsRzld7EXcL6SPhdfGY+o2Wliapa9V4rlago9/zE395Dt5 aGPt1XCs7Hi7NOwV2IxCVdLGUvVfQB8COjwnyMsaa6CGu/4zty8SqJKZ Eso9tqf+j9CW5TCWu0U3nyaSQ0Md4NN6UEUJY5tUl53Vh0vQzXnA0glj fbiSe1WIsHbKMGQoxyGrVTqI+yDBe4jCYP6FLnKK4YK92H1aVfyVHPbF nJ9T7+A8oNNHZOXjpEt+380MXQQe/740IGcPUlvZ6t7AgHswMtofMIwr FSzBEbg0xp+CE5iGjHZXhgab0CzCa2aX/wgYM5p1ajaA8Vg4I8kfFC8l mlpCZg==

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 include:_spf.protonmail.ch ~all

DMARC

Configured

v=DMARC1; p=quarantine; fo=1; aspf=s; adkim=s;

DKIM

Selector protonmail

v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAn46zCm3zHBmS1zePKxA+RIXw41Nu6l91NpLLBnWnrcZ35H/843XNWPZEQ0OgGwx/yqTXETMLXIDjGEWlK1E1mpdguqu+3s7SuIHoo5+i6mgyxJguljkwc3dk8ojnJ6VVUPnDh5GJArkAhXxEb1aOK1BVGM0yDlmYdmaOfd48qcx5iODP/MFc8pivfxEXTIL+aUz7+X69lMiwUSHpWYL3/a5X3nLD0zEntxv08xs8J/rpuRg4v+OXEOhcNvhkeiRZqJBdpJTkoEZfGvdTct+U0YYC69NW0ClUcKio2uDPmxU1xvfvHbSTW2gHYk8RpYZaxLACULdMo+Vt4Na/oIR+swIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Proton: Privacy by default

Description

Over 100 million people use Proton to stay private and secure online. Get a free Proton account and take back your privacy.

Final URL

https://proton.me/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://proton.me/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

proton.me

Valid from

2026-07-09T08:13:53-05:00

Valid until

2026-10-07T08:13:52-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

✓

Referrer PolicyImplemented

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

185.70.42.45

50,15 ms

Cloudflare

1.1.1.1

185.70.42.45

26,43 ms

Quad9

9.9.9.9

185.70.42.45

23,41 ms

OpenDNS

208.67.222.222

185.70.42.45

25,20 ms

AdGuard

94.140.14.14

185.70.42.45

40,78 ms

IP, geolocation and ASNAssociated network information

185.70.42.45

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mail.protonmail.ch

Port 25: Closed/unreachable - 38.9 ms - 
Port 465: Closed/unreachable - 4019.6 ms - 
Port 587: Closed/unreachable - 4020 ms -

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