Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

forms.guest.usercontent.dev.microsoft

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

DNS Check HTTP Check Run Full Scan .microsoft TLD

Run a live full scan of forms.guest.usercontent.dev.microsoft

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
41
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
87
in our scans

DNS Records

A
23.103.224.147, 23.103.224.159, 23.103.224.20, 23.103.224.24, 23.103.224.26, 23.103.224.60, 23.103.224.72, 23.103.224.81
AAAA
2603:1061:1600:24::365:c0, 2603:1061:1600:2d00::365:c0, 2603:1061:1600:2d01::365:c0, 2603:1061:1600:2d02::365:c0, 2603:1061:1600:2d04::365:c0, 2603:1061:1600:2d08::365:c0, 2603:1061:1600:2d09::365:c0, 2603:1061:1600:2d0a::365:c0
MX
—
NS
—
TXT
—
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

48.212.2.1:443 47acfc2b83ef…
Subject: forms.office-int.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.customervoice.microsoft-int.com, *.forms.office-int.com, *.forms.osi.office-int.net, customervoice.microsoft-int.com, forms.cloud.dev.microsoft, forms.guest.usercontent.dev.microsoft, forms.microsoft-int.com, forms.office-int.com, forms.static.dev.microsoft
48.212.12.0:443 be698296706c…
Subject: forms.office-int.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.customervoice.microsoft-int.com, *.forms.office-int.com, *.forms.osi.office-int.net, customervoice.microsoft-int.com, forms.cloud.dev.microsoft, forms.guest.usercontent.dev.microsoft, forms.microsoft-int.com, forms.office-int.com, forms.static.dev.microsoft

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

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
A 23.103.224.20 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
AAAA 2603:1061:1600:a3::365:c0 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
A 23.103.224.24 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
AAAA 2603:1061:1600:24::365:c0 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
A 23.103.224.159 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
AAAA 2603:1061:1600:93::365:c0 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
A 23.103.224.147 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
AAAA 2603:1061:1600:7d::365:c0 2026-06-14 22:23:29.853 2026-06-14 22:23:29.853
A 23.103.224.26 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
A 23.103.224.60 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
AAAA 2603:1061:1600:69::365:c0 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
AAAA 2603:1061:1600:87::365:c0 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
AAAA 2603:1061:1600:71::365:c0 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
AAAA 2603:1061:1600:8e::365:c0 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
A 23.103.224.81 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
A 23.103.224.72 2026-06-15 16:40:26.825 2026-06-15 16:40:26.825
AAAA 2603:1061:1600:2d0c::365:c0 2026-06-19 17:55:58.048 2026-07-28 04:18:08.089
AAAA 2603:1061:1600:2d00::365:c0 2026-06-19 17:55:58.048 2026-06-19 17:55:58.048
A 23.103.241.18 2026-06-19 17:55:58.048 2026-06-19 17:55:58.048
A 23.103.241.64 2026-06-19 17:55:58.048 2026-06-19 17:55:58.048
A 23.103.241.15 2026-06-19 17:55:58.048 2026-06-19 17:55:58.048
AAAA 2603:1061:1600:2d08::365:c0 2026-06-19 17:55:58.048 2026-07-28 09:22:53.757
AAAA 2603:1061:1600:2d09::365:c0 2026-06-19 17:55:58.048 2026-07-28 09:22:53.757
A 23.103.241.25 2026-06-19 17:55:58.048 2026-06-19 17:55:58.048
AAAA 2603:1061:1600:2d02::365:c0 2026-06-20 11:43:22.120 2026-07-28 04:18:08.089
A 23.103.241.54 2026-06-20 11:43:22.120 2026-06-20 11:43:22.120
A 23.103.241.51 2026-06-20 11:43:22.120 2026-06-20 11:43:22.120
A 23.103.241.53 2026-06-20 11:43:22.120 2026-06-20 11:43:22.120
A 23.103.241.39 2026-06-20 11:43:22.120 2026-06-20 11:43:22.120
AAAA 2603:1061:1600:2d0a::365:c0 2026-06-20 11:43:22.120 2026-07-28 04:18:08.089
AAAA 2603:1061:1600:2d0d::365:c0 2026-06-20 11:43:22.120 2026-07-28 09:22:53.757
AAAA 2603:1061:1600:2d04::365:c0 2026-06-20 11:43:22.120 2026-06-20 11:43:22.120
AAAA 2603:1061:1600:2d01::365:c0 2026-07-28 04:18:08.089 2026-07-28 09:22:53.757
A 23.103.242.132 2026-07-28 04:18:08.089 2026-07-28 04:18:08.089
A 23.103.242.140 2026-07-28 04:18:08.089 2026-07-28 04:18:08.089
A 23.103.242.138 2026-07-28 04:18:08.089 2026-07-28 04:18:08.089
A 23.103.242.131 2026-07-28 04:18:08.089 2026-07-28 04:18:08.089
A 23.103.241.48 2026-07-28 09:22:53.757 2026-07-28 09:22:53.757
A 23.103.241.71 2026-07-28 09:22:53.757 2026-07-28 09:22:53.757
A 23.103.241.11 2026-07-28 09:22:53.757 2026-07-28 09:22:53.757
A 23.103.241.75 2026-07-28 09:22:53.757 2026-07-28 09:22:53.757