Check-Host.cc

Domain

notion.com

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

Run a live full scan of notion.com

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

Deep-scan now
Hosting IPs
23
A/AAAA targets
Subdomains
55
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
17
in our scans

DNS Records

A
208.103.161.1, 208.103.161.2
AAAA
2602:f79a::1, 2602:f79a::2
MX
0 smtp.secureserver.net, 10 mailstore1.secureserver.net
NS
dana.ns.cloudflare.com, woz.ns.cloudflare.com
TXT
_k0agcdke41snjx7ss80rut5biowk800, google-site-verification=-rrcdVtUe-ikX5m1TXuYPXNJCC16vUgxXzZgB5138C8, google-site-verification=nZoLSfH2fUzqMya0O0pqBwWkD8cnu8qBpmp66wBGHD8, google-site-verification=tqASjjztbEJ9II6pE7ZItRP5iVmkhNU-iF2_xbHRndc, google-site-verification=zH2sp7b2Gl7ek6DwF_cIDZwvIZPcOUSWn-VQrKxmycc, postman-domain-verification=a713ed7f186c1901e299d55957b0e1bdfaf8f7d5aff31fbc6d49765defe5e190ab5c217a736b4ad45c553409b5b9d519977eb68ba3db733891949c1d456fdb71, proxy-ssl.webflow.com, v=MCPv1; k=ed25519; p=wv6IKlrIuEu00zHS//f5iBxZtZGb+UYuqaRlrg3CEY4=
CNAME
CAA

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

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

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

TLS Certificates

Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com
Subject: www.notion.com
Issuer: www.notion.com
SANs: www.notion.com

IPs Citing This Domain

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

64.90.38.91:443 href · ×4
5.227.172.13:443 href · ×1

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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

c084f153dcfd7428… google · argon2026h2
Subject: notion.com
Issuer: Amazon RSA 2048 M03
SANs: notion.com, api.notion.com, integrations-api.notion.com
Valid: 2025-09-03 00:00:00 → 2026-10-02 23:59:59
f193c49f2ce8fa41… cloudflare · nimbus2026
Subject: notion.com
Issuer: Amazon RSA 2048 M04
SANs: notion.com, api.notion.com, integrations-api.notion.com
Valid: 2025-07-27 00:00:00 → 2026-08-25 23:59:59

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.