Check-Host.cc

Domain

1cs.jp

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

Run a live full scan of 1cs.jp

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

DNS Records

A
13.227.173.100, 13.227.173.119, 13.227.173.86, 13.227.173.94, 143.204.55.128, 143.204.55.52, 143.204.55.59, 143.204.55.81
AAAA
MX
10 inbound-smtp.us-west-2.amazonaws.com
NS
ns-1017.awsdns-63.net, ns-1088.awsdns-08.org, ns-1601.awsdns-08.co.uk, ns-51.awsdns-06.com
TXT
google-site-verification=lTbJzHRQzMlZrxPf80ckctAWaf5AXXQSI2W0-4fa_jo, v=spf1 include:spf.baremetal.jp include:amazonses.com ~all
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

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
1cs.jp 2026-07-18 11:15:56.410
backup.1cs.jp
1970-01-01 00:00:00.000
backup2-staging.1cs.jp
1970-01-01 00:00:00.000
test.1cs.jp
1970-01-01 00:00:00.000

Tech Stack

Tech detection pending

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

TLS Certificates

Subject: *.1cs.jp
Issuer: Amazon RSA 2048 M01
SANs: *.1cs.jp
Subject: *.1cs.jp
Issuer: Amazon RSA 2048 M01
SANs: *.1cs.jp
Subject: *.1cs.jp
Issuer: Amazon RSA 2048 M01
SANs: *.1cs.jp
Subject: *.1cs.jp
Issuer: Amazon RSA 2048 M01
SANs: *.1cs.jp
Subject: *.1cs.jp
Issuer: Amazon RSA 2048 M01
SANs: *.1cs.jp
Subject: *.1cs.jp
Issuer: Amazon RSA 2048 M01
SANs: *.1cs.jp

IPs Citing This Domain

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

162.43.50.10:443 href · ×3
60.43.205.69:80 href · ×1
60.43.205.69:443 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.

275de7639df77a79… google · argon2026h1
Subject: 1cs.jp
Issuer: Amazon RSA 2048 M03
SANs: 1cs.jp
Valid: 2025-03-21 00:00:00 → 2026-04-18 23:59:59
cdffb52c186504c9… google · argon2026h1
Subject: 1cs.jp
Issuer: Amazon RSA 2048 M03
SANs: 1cs.jp
Valid: 2025-03-21 00:00:00 → 2026-04-18 23:59:59
275de7639df77a79… cloudflare · nimbus2026
Subject: 1cs.jp
Issuer: Amazon RSA 2048 M03
SANs: 1cs.jp
Valid: 2025-03-21 00:00:00 → 2026-04-18 23:59:59
cdffb52c186504c9… cloudflare · nimbus2026
Subject: 1cs.jp
Issuer: Amazon RSA 2048 M03
SANs: 1cs.jp
Valid: 2025-03-21 00:00:00 → 2026-04-18 23:59:59
275de7639df77a79… sectigo · elephant2026h1
Subject: 1cs.jp
Issuer: Amazon RSA 2048 M03
SANs: 1cs.jp
Valid: 2025-03-21 00:00:00 → 2026-04-18 23:59:59

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
MX 10 inbound-smtp.us-west-2.amazonaws.com 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
NS ns-1017.awsdns-63.net 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
A 18.64.211.17 2026-05-26 11:24:21.876 2026-07-18 11:05:25.175
NS ns-1601.awsdns-08.co.uk 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
NS ns-1088.awsdns-08.org 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
A 18.64.211.119 2026-05-26 11:24:21.876 2026-07-18 11:05:25.175
TXT v=spf1 include:spf.baremetal.jp include:amazonses.com ~all 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
TXT google-site-verification=lTbJzHRQzMlZrxPf80ckctAWaf5AXXQSI2W0-4fa_jo 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
A 18.64.211.91 2026-05-26 11:24:21.876 2026-07-18 11:05:25.175
A 18.64.211.73 2026-05-26 11:24:21.876 2026-07-18 11:05:25.175
NS ns-51.awsdns-06.com 2026-05-26 11:24:21.876 2026-07-18 11:15:56.410
A 54.192.97.15 2026-05-26 23:00:20.000 2026-05-26 23:00:20.000
A 54.192.97.85 2026-05-26 23:00:20.000 2026-05-26 23:00:20.000
A 54.192.97.35 2026-05-26 23:00:20.000 2026-05-26 23:00:20.000
A 54.192.97.129 2026-05-26 23:00:20.000 2026-05-26 23:00:20.000
A 3.165.206.40 2026-05-31 15:38:31.905 2026-05-31 15:38:31.905
A 3.165.206.8 2026-05-31 15:38:31.905 2026-05-31 15:38:31.905
A 3.165.206.13 2026-05-31 15:38:31.905 2026-05-31 15:38:31.905
A 3.165.206.129 2026-05-31 15:38:31.905 2026-05-31 15:38:31.905
A 18.239.36.48 2026-05-31 15:40:50.761 2026-07-18 11:15:56.410
A 18.239.36.76 2026-05-31 15:40:50.761 2026-07-18 11:15:56.410
A 18.239.36.70 2026-05-31 15:40:50.761 2026-07-18 11:15:56.410
A 18.239.36.89 2026-05-31 15:40:50.761 2026-07-18 11:15:56.410
A 13.227.173.119 2026-06-01 19:03:36.179 2026-06-04 19:52:25.883
A 13.227.173.100 2026-06-01 19:03:36.179 2026-06-04 19:52:25.883
A 13.227.173.94 2026-06-01 19:03:36.179 2026-06-04 19:52:25.883
A 13.227.173.86 2026-06-01 19:03:36.179 2026-06-04 19:52:25.883
A 3.174.255.87 2026-06-01 22:19:48.499 2026-06-01 22:19:48.499
A 3.174.255.63 2026-06-01 22:19:48.499 2026-06-01 22:19:48.499
A 3.174.255.66 2026-06-01 22:19:48.499 2026-06-01 22:19:48.499
A 3.174.255.22 2026-06-01 22:19:48.499 2026-06-01 22:19:48.499
A 52.85.185.107 2026-06-02 15:01:10.024 2026-06-25 15:30:46.292
A 52.85.185.58 2026-06-02 15:01:10.024 2026-06-25 15:30:46.292
A 52.85.185.30 2026-06-02 15:01:10.024 2026-06-25 15:30:46.292
A 52.85.185.7 2026-06-02 15:01:10.024 2026-06-25 15:30:46.292
A 18.245.253.92 2026-06-03 23:25:58.285 2026-06-04 19:55:31.253
A 18.245.253.56 2026-06-03 23:25:58.285 2026-06-04 19:55:31.253
A 18.245.253.8 2026-06-03 23:25:58.285 2026-06-04 19:55:31.253
A 18.245.253.25 2026-06-03 23:25:58.285 2026-06-04 19:55:31.253
A 65.8.76.102 2026-06-04 18:07:29.740 2026-06-04 18:07:29.740
A 65.8.76.12 2026-06-04 18:07:29.740 2026-06-04 18:07:29.740
A 65.8.76.50 2026-06-04 18:07:29.740 2026-06-04 18:07:29.740
A 65.8.76.70 2026-06-04 18:07:29.740 2026-06-04 18:07:29.740
A 143.204.55.128 2026-06-04 18:21:05.504 2026-06-04 18:21:05.504
A 143.204.55.52 2026-06-04 18:21:05.504 2026-06-04 18:21:05.504
A 143.204.55.81 2026-06-04 18:21:05.504 2026-06-04 18:21:05.504
A 143.204.55.59 2026-06-04 18:21:05.504 2026-06-04 18:21:05.504