Check-Host.cc

Domain

tutanota.com

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of tutanota.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

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Hosting IPs
12
A/AAAA targets
Subdomains
19
CT + scan + body
Record Types
6
seen in DNS
Observed Certs
1
in our scans

DNS Records

A
185.205.69.12
AAAA
2a10:e000:1::12
MX
0 mail.tutanota.de
NS
ns-1076.awsdns-06.org, ns-1714.awsdns-22.co.uk, ns-382.awsdns-47.com, ns-811.awsdns-37.net
TXT
abuseipdb-verification=V6gdNUbd, google-site-verification=f4CoOCIjk4gRC1tdcBRI0BB17BJXEyPp9vIY6vFwgkg, v=spf1 include:spf.tutanota.de -all
CNAME
CAA
0 issue "letsencrypt.org", 0 issue "sectigo.com"

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
mail.tutanota.com 2026-07-25 11:46:38.346
tutanota.com 2026-07-25 21:24:24.275
w11.api.tutanota.com 2026-07-19 05:22:35.134
w7.api.test.tutanota.com 2026-07-16 18:22:19.807
w8.api.test.tutanota.com 2026-06-04 00:22:25.979
w9.api.tutanota.com 2026-06-19 01:18:24.233

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Domain timeline pending

Passive-DNS history accumulates as our forward-DNS crawler observes A/AAAA/MX/NS/TXT records over time.