Check-Host.cc

Domen

leetcode.cn

Agregirano iz javnih BGP feedova, CT logova, našeg sloja skeniranja, honeypota i globalnih proba.

Run a live full scan of leetcode.cn

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
4
A/AAAA targets
Subdomains
13
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
2
in our scans

DNS zapisi

A
104.18.12.180, 104.18.13.180
AAAA
2606:4700::6812:cb4, 2606:4700::6812:db4
MX
10 mx1.feishu.cn, 20 mx2.feishu.cn, 30 mx3.feishu.cn
NS
vip3.alidns.com, vip4.alidns.com
TXT
MS=ms72492506, anthropic-domain-verification-0ncjj1=EhYqnguC2eC8QKSAZ5ejMCotk, google-site-verification=FkB5s_Aawk0mLpI0xSjTLrU_LJIcmNYo7XhP5AWqksM, v=spf1 +include:_netblocks.m.feishu.cn ~all, v=spf1 +include:_netblocks.m.feishu.cn ~all, verification-code-site-App_feishu=FV0u84PqJlV1Wgocke5k
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.

Subdomeni

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

Tehnološki stek

Tech detection pending

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

TLS sertifikati

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.

8.136.14.51:443 href · ×54
36.151.150.187:443 href · ×13
47.109.199.118:443 href · ×7
47.93.32.46:443 href · ×3
47.93.32.46:80 href · ×3
129.204.168.100:443 href · ×3
124.71.113.58:80 href · ×2
139.199.10.201:443 href · ×2
124.221.161.98:80 href · ×2
117.72.17.101:80 href · ×2
43.136.112.5:443 href · ×2
121.37.44.211:443 href · ×2
59.110.141.23:443 href · ×2
101.132.129.63:443 href · ×2
117.72.186.7:443 href · ×2
49.232.11.13:80 href · ×2
121.37.44.211:80 href · ×2
134.175.243.211:443 href · ×2
117.72.65.229:80 href · ×2
115.190.119.246:80 href · ×2
198.200.36.51:443 href · ×1
52.170.56.153:443 href · ×1
23.254.194.167:443 href · ×1
43.139.78.239:443 href · ×1
47.96.147.167:443 href · ×1
8.138.229.87:443 href · ×1
43.142.79.12:8000 href · ×1
144.168.56.89:443 href · ×1
175.24.18.121:8000 href · ×1
117.72.11.3:443 href · ×1
43.161.248.126:443 href · ×1
198.200.36.51:80 href · ×1
39.107.108.230:443 href · ×1
47.105.38.163:80 href · ×1
144.168.56.89:8080 href · ×1
111.229.187.72:80 href · ×1
124.70.163.79:80 href · ×1
121.43.124.119:443 href · ×1
106.53.15.165:80 href · ×1
47.115.44.155:80 href · ×1
124.221.31.142:443 href · ×1
124.221.243.113:443 href · ×1
1.92.104.6:80 href · ×1
172.237.4.234:80 href · ×1
66.42.55.151:443 href · ×1
37.123.193.59:80 href · ×1
4.189.252.43:8000 href · ×1
175.24.179.4:443 href · ×1
47.242.175.202:80 href · ×1
47.99.137.26:443 href · ×1

Origin / IP-Leak

USP

Kada je hostname serviran iza CDN-a (npr. Cloudflare), origin server se ponekad može identifikovati podudaranjem TLS sertifikata sa zaštićenim hostname-om. Nalazi prikazani ovde su heuristički kandidati, a ne garancija.

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.

Istorija

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
TXT v=spf1 +include:_netblocks.m.feishu.cn ~all 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
TXT v=spf1 +include:_netblocks.m.feishu.cn ~all 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
MX 30 mx3.feishu.cn 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
MX 20 mx2.feishu.cn 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
NS vip3.alidns.com 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
AAAA 2606:4700::6812:db4 2026-05-26 03:50:49.068 2026-07-28 13:22:58.632
TXT verification-code-site-App_feishu=FV0u84PqJlV1Wgocke5k 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
TXT google-site-verification=FkB5s_Aawk0mLpI0xSjTLrU_LJIcmNYo7XhP5AWqksM 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
NS vip4.alidns.com 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
TXT anthropic-domain-verification-0ncjj1=EhYqnguC2eC8QKSAZ5ejMCotk 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
TXT MS=ms72492506 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
AAAA 2606:4700::6812:cb4 2026-05-26 03:50:49.068 2026-07-28 13:22:58.632
A 104.18.13.180 2026-05-26 03:50:49.068 2026-07-28 13:22:58.632
MX 10 mx1.feishu.cn 2026-05-26 03:50:49.068 2026-05-31 06:35:40.821
A 104.18.12.180 2026-05-26 03:50:49.068 2026-07-28 13:22:58.632