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92
Total
100
DNS
100
Email
84
Security
55
Network
100
Availability
Domaintuta.com
IPv41
IPv61
MX records1
StatusActive
Domain technical report

Tuta: Turn ON privacy for free with secure emails, calendars & contacts | Tuta

tuta.com

Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.

Generated: 2026-08-10T11:21:41-05:00 · Cached result

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IPv41
IPv61
MX1
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

4 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

1 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

35 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 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)
185.205.69.12

AAAA

1 record(s)
2a10:e000:1::12

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
0 mail.tutanota.de.

TXT

3 record(s)
"google-site-verification=tsH9g7KEFw9oimUXXbhRw4VKc1hQ9KXOmozGUju5dgI"
"linkedin-site-verification=fc65c43a-b489-47a0-b0ca-04775846b512"
"v=spf1 include:spf.tutanota.de -all"

NS

4 record(s)
ns-150.awsdns-18.com.
ns-1138.awsdns-14.org.
ns-724.awsdns-26.net.
ns-1967.awsdns-53.co.uk.

SOA

1 record(s)
ns-1967.awsdns-53.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

CAA

2 record(s)
0 issue "letsencrypt.org"
0 issue "sectigo.com"

DS

1 record(s)
47014 13 2 19B56145661634128156DC51C13700811F2CFDAC1F3BB603F7821055 DF72BA9F

DNSKEY

3 record(s)
256 3 13 AWY2vPF/EkUWgX3Kj/49NGIJEJ1Kk3NYErLRklvM66MeAWUall39gKO9 YsPL+e1a4g/W09te0UkBjdKLT2SDnA==
256 3 13 cepOP85qy8Nb4rRWdyFZYZnisG1ShsmqqqihWBW+iVUGK64wT48PzvYB BLpNyKxohP/8C/VbuGvwSQbLzPy8vQ==
257 3 13 os2q8ALQGmPkTNlO5NIMo8ahIfRHCWEE/whvXl5WnAedqON21t9n9eIN Omfs6HctNkOcLSlpl06nRnP5z9XhbQ==

RRSIG

0 record(s)
—

Not configured

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.tutanota.de -all

DMARC

Configured
v=DMARC1; p=quarantine; adkim=s

DKIM

Selector s1
v=DKIM1; k=rsa; h=sha256; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4d/jridMLV9rZ/lBiDYA17BWKWIHnvLzCVGoFcOENqxLym8ro869rgp82mcxobr2kPyd+sfAS/REOoZ+pkf1wnyywQrf4r9i1O9Bnop4/WsRXTIfgKtaIOtwyhgsv9JH5KpxeQxHwl9CEHhqJuFJp808gbqRZt6PDp2YetB23EyJ5kp/jpn5/aCvVpC27+jnQH6NoYN8wNsC6cTSA1EhL1etUwJrZUwRtf8S2PIDJOm1/CUtc9a/d3sZk15LDtUUbODrQMrj5mzMzHPYp43MwLFRlvSa/O+xIx8esNxwnDa7PH6PZLB8lhtkY49/4ofKV5BQKMGmGmyn+rgYDHD8iwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Tuta: Turn ON privacy for free with secure emails, calendars & contacts | Tuta
Description
Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.
Final URL
https://tuta.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://tuta.com/
Version
3
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
tuta.com
Valid from
2026-06-17T01:51:47-05:00
Valid until
2026-09-15T01:51:46-05:00
Days remaining
35
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

5 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
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
185.205.69.12
86,07 ms
Cloudflare
1.1.1.1
185.205.69.12
33,32 ms
Quad9
9.9.9.9
185.205.69.12
39,65 ms
OpenDNS
208.67.222.222
185.205.69.12
45,39 ms
AdGuard
94.140.14.14
185.205.69.12
53,64 ms

IP, geolocation and ASNAssociated network information

185.205.69.12

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

mail.tutanota.de

Port 25: Closed/unreachable - 11.6 ms - 
Port 465: Closed/unreachable - 4020.9 ms - 
Port 587: Closed/unreachable - 4022 ms -

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