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IP Address IPv4

27.221.71.58

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

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

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ASN
AS4837
China Unicom
Country
CN
China
Reverse DNS
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
China Unicom
AS Type
RIR
APNIC
Allocated
2001-09-17
Allocation status
Allocated

Geolocation

Country
CN · China
Continent
Asia
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https 2026-07-19 05:15:20.000

TLS Certificates

TLS certificate observations pending

Once our scan layer captures a TLS cert from this IP, certificate chain, JARM and JA4S fingerprints will appear here.

Tech Stack

Wappalyzer fingerprinting pending

HTTP-body analysis identifies web frameworks, CMS platforms, analytics, JS libraries and server-side languages from this host.

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.

dingtalk.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN dingtalk.com which currently resolves through Alibaba (AS37963) at 106.11.40.32, 106.11.35.100, 106.11.43.160, 106.11.43.136
etao.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN etao.com which currently resolves through Alibaba (AS37963) at 203.119.238.131, 203.119.213.152, 203.119.238.26, 203.119.213.70
aliexpress.com 95% confidence
behind AS45102 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN aliexpress.com which currently resolves through Alibaba (AS45102) at 47.246.173.30, 47.246.173.237
tmall.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN m.tmall.com which currently resolves through Alibaba (AS37963) at 2408:4001:f10::2b0, 2408:4001:f10::173, 2408:4001:f10::d3, 2408:4001:f10::203
tmall.com 95% confidence
behind AS45102 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN aliqin.tmall.com which currently resolves through Alibaba (AS45102) at 47.246.177.217, 47.246.177.221, 47.246.177.225, 47.246.177.213
alibaba.com 95% confidence
behind AS16625 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN m.alibaba.com which currently resolves through Akamai (AS16625) at 23.222.198.187, 23.220.114.141, 184.30.158.169, 23.44.210.176
taobao.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN chi.taobao.com which currently resolves through Alibaba (AS37963) at 59.82.122.10, 59.82.120.12, 59.82.121.179, 59.82.122.127
alitrip.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN alitrip.com which currently resolves through Alibaba (AS37963) at 59.82.132.130, 2408:4001:f00::109d
aliyun.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN aliyun.com which currently resolves through Alibaba (AS37963) at 140.205.135.3, 106.11.172.9, 106.11.248.146, 106.11.249.99
alicdn.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN alicdn.com which currently resolves through Alibaba (AS37963) at 140.205.77.240, 115.238.23.240
tmall.hk 95% confidence
behind AS45102 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN tmall.hk which currently resolves through Alibaba (AS45102) at 205.204.125.153, 203.192.147.141, 134.159.210.121, 134.159.210.111
taopiaopiao.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN taopiaopiao.com which currently resolves through Alibaba (AS37963) at 203.119.215.244, 203.119.201.248
tbcdn.cn 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN tbcdn.cn which currently resolves through Alibaba (AS37963) at 140.205.77.250, 140.205.132.250
cainiao.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN cainiao.com which currently resolves through Alibaba (AS37963) at 203.119.204.170, 203.119.238.19
alibaba.com 95% confidence
behind AS45102 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN alibaba.com which currently resolves through Alibaba (AS45102) at 47.246.137.105, 47.246.136.52, 47.246.131.198, 47.246.136.156
tbcache.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN tbcache.com which currently resolves through Alibaba (AS37963) at 140.205.132.250, 140.205.77.240
xiami.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN xiami.com which currently resolves through Alibaba (AS37963) at 121.40.103.238
1688.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN 1688.com which currently resolves through Alibaba (AS37963) at 140.205.174.2
fliggy.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN fliggy.com which currently resolves through Alibaba (AS37963) at 59.82.132.130
feizhu.com 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN feizhu.com which currently resolves through Alibaba (AS37963) at 59.82.132.130
feizhu.cn 95% confidence
behind AS37963 cert e61e194e3b42… · cert e61e194e… served by 27.221.71.58 (AS4837) carries SAN feizhu.cn which currently resolves through Alibaba (AS37963) at 203.119.128.203
dingtalk.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN dingtalk.com which currently resolves through Alibaba (AS37963) at 106.11.40.32, 106.11.35.100, 106.11.43.160, 106.11.43.136
aliyun.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN aliyun.com which currently resolves through Alibaba (AS37963) at 140.205.135.3, 106.11.172.9, 106.11.248.146, 106.11.249.99
alibaba.com 95% confidence
behind AS45102 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN alibaba.com which currently resolves through Alibaba (AS45102) at 47.246.137.105, 47.246.136.52, 47.246.131.198, 47.246.136.156
taobao.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN chi.taobao.com which currently resolves through Alibaba (AS37963) at 59.82.121.55, 59.82.122.145, 59.82.122.10, 59.82.122.165
tmall.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN m.tmall.com which currently resolves through Alibaba (AS37963) at 2408:4001:f10::1aa, 2408:4001:f00::1a8, 2408:4001:f00::445, 2408:4001:f00::23b
aliexpress.com 95% confidence
behind AS45102 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN aliexpress.com which currently resolves through Alibaba (AS45102) at 47.246.173.30, 47.246.173.237
etao.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN etao.com which currently resolves through Alibaba (AS37963) at 203.119.238.131, 203.119.213.152, 203.119.238.26, 203.119.213.70
taopiaopiao.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN taopiaopiao.com which currently resolves through Alibaba (AS37963) at 203.119.215.244, 203.119.201.248
1688.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN 1688.com which currently resolves through Alibaba (AS37963) at 140.205.174.2
feizhu.cn 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN feizhu.cn which currently resolves through Alibaba (AS37963) at 203.119.128.203
tmall.com 95% confidence
behind AS45102 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN aliqin.tmall.com which currently resolves through Alibaba (AS45102) at 47.246.177.213, 47.246.177.221, 47.246.177.217, 47.246.177.225
tbcache.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN tbcache.com which currently resolves through Alibaba (AS37963) at 140.205.132.250, 140.205.77.240
tmall.hk 95% confidence
behind AS45102 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN tmall.hk which currently resolves through Alibaba (AS45102) at 205.204.125.153, 203.192.147.141, 134.159.210.121, 134.159.210.111
tbcdn.cn 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN tbcdn.cn which currently resolves through Alibaba (AS37963) at 140.205.77.250, 140.205.132.250
cainiao.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN cainiao.com which currently resolves through Alibaba (AS37963) at 203.119.204.170, 203.119.238.19
alicdn.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN alicdn.com which currently resolves through Alibaba (AS37963) at 140.205.77.240, 115.238.23.240
feizhu.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN feizhu.com which currently resolves through Alibaba (AS37963) at 59.82.132.130
fliggy.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN fliggy.com which currently resolves through Alibaba (AS37963) at 59.82.132.130
alitrip.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN alitrip.com which currently resolves through Alibaba (AS37963) at 59.82.132.130, 2408:4001:f00::109d
xiami.com 95% confidence
behind AS37963 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN xiami.com which currently resolves through Alibaba (AS37963) at 121.40.103.238
alibaba.com 95% confidence
behind AS16625 cert 603c41a07862… · cert 603c41a0… served by 27.221.71.58 (AS4837) carries SAN m.alibaba.com which currently resolves through Akamai (AS16625) at 2.19.102.171, 23.58.106.198, 88.221.170.154, 23.52.182.165

Multi-Vantage Check

Reachability accrued passively from real user-triggered checks across our 65+ probe nodes. Run a live check to add fresh data.

No accumulated reachability data yet

Reachability accrues from real user-triggered checks. Trigger a Ping or HTTP check from our 65+ probe nodes to contribute the first data point.

Threat Intelligence

No threat-intel matches

This IP doesn't appear in any of the feeds we mirror (Tor exits, FireHOL Level 1-3, Spamhaus DROP/EDROP, URLhaus, OpenPhish). Absence here doesn't prove the IP is clean — it just means none of our public-feed sources flag it.

Co-Hosted Domains

No DNS-confirmed domains yet

We cross-reference body-cited domains against our DNS resolver records. Confirmations appear here once both sides have data for the same name.

External References

No external references found yet

As HTML bodies get banner-grabbed, references to external domains land here.

History

First observed
2026-05-26 22:51
Last observed
2026-07-19 05:15
Scan observations
4

The full change-log (ASN moves, cert rotations, port-state diffs) accumulates as our archives grow.