Check-Host.cc

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

forms.cloud.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.cloud.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
28
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
2
seen in DNS
Observed Certs
253
in our scans

DNS Records

A
150.171.73.13, 150.171.74.13, 150.171.75.13, 150.171.76.13, 23.103.242.128, 23.103.242.129, 23.103.242.130, 23.103.242.133
AAAA
2603:1061:10:1::13, 2603:1061:10:2::13, 2603:1061:10:3::13, 2603:1061:10::13, 2603:1061:1600:220b::365:c0, 2603:1061:1600:2231::365:c0, 2603:1061:1600:2235::365:c0, 2603:1061:1600:2244::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

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

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

164.151.129.61:443 href · ×6
85.131.244.25:443 href · ×5
157.88.26.20:443 href · ×4
66.33.194.66:443 href · ×4
115.84.237.207:8081 href · ×3
64.23.225.23:443 href · ×3
94.46.183.2:9443 href · ×2
160.16.145.36:80 href · ×2
41.221.192.221:80 href · ×2
143.110.185.197:443 href · ×2
51.161.128.141:443 href · ×2
13.200.34.121:443 href · ×2
116.80.114.223:443 href · ×2
46.20.166.107:443 href · ×1
74.208.80.22:443 href · ×1
122.147.67.9:443 href · ×1
149.202.74.212:80 href · ×1
52.69.173.79:443 href · ×1
111.108.146.200:443 href · ×1
43.209.168.64:80 href · ×1
99.80.159.104:443 href · ×1
98.88.66.185:443 href · ×1
91.121.133.20:80 href · ×1
82.67.102.5:443 href · ×1
3.108.171.85:443 href · ×1
40.76.96.200:80 href · ×1
219.92.5.158:443 href · ×1
193.2.85.238:80 href · ×1
13.127.2.238:443 href · ×1
54.180.5.198:80 href · ×1
79.137.65.146:443 href · ×1
157.205.181.54:80 href · ×1
146.155.45.28:443 href · ×1
5.45.44.15:443 href · ×1
150.60.23.173:443 href · ×1
111.108.146.160:80 href · ×1
49.13.31.189:443 href · ×1
62.116.201.28:80 href · ×1
34.233.45.170:443 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.

ca37fd9fc1581631… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: *.forms.office.com, forms.microsoft.com, *.forms.microsoft.com, *.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft, eu.forms.office.com, forms.office.com
Valid: 2026-04-02 07:26:54 → 2026-10-17 07:26:54
fdad05e874c68d26… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 02
SANs: *.forms.office.com, forms.microsoft.com, *.forms.microsoft.com, *.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft, eu.forms.office.com, forms.office.com
Valid: 2026-04-02 07:26:41 → 2026-10-17 07:26:41
3aea739729a3e201… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: *.forms.office.com, *.forms.microsoft.com, forms.microsoft.com, *.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft, eu.forms.office.com, forms.office.com
Valid: 2026-03-25 06:57:24 → 2026-10-09 06:57:24
e388e9c75aac2f71… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-19 13:45:00 → 2026-09-15 13:45:00
8fd574fbbd760217… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-19 13:44:34 → 2026-09-15 13:44:34
11014d5407c490ef… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:45:21 → 2026-09-14 13:45:21
7a7f227586bb823c… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:45:15 → 2026-09-14 13:45:15
b0ffb545d60fb539… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 10
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:45:12 → 2026-09-14 13:45:12
25c3a57f2ef8470a… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:44:38 → 2026-09-14 13:44:38
8bad6555698161b7… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:44:25 → 2026-09-14 13:44:25
bd3aa0ac7fe1d2f7… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:44:18 → 2026-09-14 13:44:18
cb212038c36648e3… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:40:41 → 2026-09-14 13:40:41
e4b826cb0039ac81… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:40:41 → 2026-09-14 13:40:41
c53416813f8e9c6e… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:40:33 → 2026-09-14 13:40:33
443b364a06c48a15… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:40:31 → 2026-09-14 13:40:31
0ad6a229cca35954… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:40:30 → 2026-09-14 13:40:30
78e34055251dd955… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:40:00 → 2026-09-14 13:40:00
0d4759649374ff3b… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:39:34 → 2026-09-14 13:39:34
f05eb5c51cc57915… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 16
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:39:32 → 2026-09-14 13:39:32
5bac6806514b1783… google · xenon2026h2
Subject: forms.office.com
Issuer: Microsoft TLS G2 RSA CA OCSP 04
SANs: forms.office.com, Forms.microsoft.com, *.forms.osi.office.net, *.forms.office.com, *.forms.microsoft.com, sea-000.forms.osi.office.net, customervoice.microsoft.com, *.customervoice.microsoft.com, afd.forms.office.com, akamai.forms.office.com, forms.cloud.microsoft, forms.static.microsoft, forms.guest.usercontent.microsoft
Valid: 2026-03-18 13:39:24 → 2026-09-14 13:39:24

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
AAAA 2603:1061:10::13 2026-05-25 21:32:03.363 2026-07-28 14:19:27.748
A 150.171.74.13 2026-05-25 21:32:03.363 2026-07-28 14:19:27.748
AAAA 2603:1061:10:1::13 2026-05-25 21:32:03.363 2026-07-28 14:19:27.748
A 150.171.73.13 2026-05-25 21:32:03.363 2026-07-28 14:19:27.748
AAAA 2603:1061:10:2::13 2026-05-27 10:04:36.480 2026-06-23 14:18:46.564
AAAA 2603:1061:10:3::13 2026-05-27 10:04:36.480 2026-06-23 14:18:46.564
A 150.171.76.13 2026-05-27 11:16:08.370 2026-06-23 14:18:46.564
A 150.171.75.13 2026-05-27 11:16:08.370 2026-06-23 14:18:46.564
AAAA 2603:1061:1600:2d02::365:c0 2026-07-20 19:02:36.082 2026-07-20 19:02:36.082
AAAA 2603:1061:1600:2d0d::365:c0 2026-07-20 19:02:36.082 2026-07-20 19:02:36.082
A 23.103.242.130 2026-07-20 19:02:36.082 2026-07-20 19:02:36.082
AAAA 2603:1061:1600:2d0b::365:c0 2026-07-20 19:02:36.082 2026-07-20 19:02:36.082
A 23.103.242.129 2026-07-20 19:02:36.082 2026-07-20 19:02:36.082
A 23.103.242.137 2026-07-20 19:02:36.082 2026-07-21 11:36:47.154
A 23.103.242.136 2026-07-20 19:02:36.082 2026-07-24 04:12:12.642
AAAA 2603:1061:1600:2d05::365:c0 2026-07-20 19:02:36.082 2026-07-20 19:02:36.082
AAAA 2603:1061:1600:220b::365:c0 2026-07-21 11:36:47.154 2026-07-21 11:36:47.154
AAAA 2603:1061:1600:2235::365:c0 2026-07-21 11:36:47.154 2026-07-21 11:36:47.154
A 23.103.242.140 2026-07-21 11:36:47.154 2026-07-21 11:36:47.154
AAAA 2603:1061:1600:2244::365:c0 2026-07-21 11:36:47.154 2026-07-21 11:36:47.154
AAAA 2603:1061:1600:2231::365:c0 2026-07-21 11:36:47.154 2026-07-21 11:36:47.154
A 23.103.242.133 2026-07-21 11:36:47.154 2026-07-24 04:12:12.642
AAAA 2603:1061:1600:3e::365:c0 2026-07-24 04:12:12.642 2026-07-24 04:12:12.642
A 23.103.242.138 2026-07-24 04:12:12.642 2026-07-24 04:12:12.642
AAAA 2603:1061:1600:8b::365:c0 2026-07-24 04:12:12.642 2026-07-24 04:12:12.642
AAAA 2603:1061:1600:7c::365:c0 2026-07-24 04:12:12.642 2026-07-24 04:12:12.642
A 23.103.242.128 2026-07-24 04:12:12.642 2026-07-24 04:12:12.642
AAAA 2603:1061:1600:54::365:c0 2026-07-24 04:12:12.642 2026-07-24 04:12:12.642