Check-Host.cc

IP Address IPv4

128.227.18.109

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

Run a live full scan of 128.227.18.109

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
AS6356
Click for details
Country
US
United States
Reverse DNS
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
AS Type
RIR
ARIN
Allocated
1996-03-18
Allocation status
Allocated

Geolocation

Country
US · United States
Continent
North America
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https Apache/2.4.52 (Ubuntu) 2026-07-25 05:42:47.000

TLS Certificates

Port 443 f07695cfbd0e…
Subject: dsr.cise.ufl.edu
Issuer: InCommon RSA Server CA 2
SANs: dsr.cise.ufl.edu
Valid 2025-08-17 00:00:00 → 2026-09-17 23:59:59

Tech Stack

Detected via Wappalyzer-style rules on the HTTP response body, headers, scripts and meta tags.

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-leak candidates for this IP

When this IP serves a TLS cert for a domain that fronts behind a CDN, that domain surfaces here as an origin-leak candidate with a confidence score.

Hosted Domains

1 domain resolve (A-record) to this IP.

Multi-Vantage Check

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

ICMP responsive This IP replied to our global ICMP sweep — last confirmed 2026-08-03.

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.

Web Pages

Port Page title Status Flags
443 Data Science Research 200

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

Domains this host references in its HTML AND whose DNS A/AAAA record resolves back to this IP — i.e. actually hosted here.

dsr.cise.ufl.edu DNS-confirmed

External References

Domains the body links to whose DNS does NOT resolve to this IP — usually CDN assets, embeds, or third-party services. Boilerplate (Google Fonts, jsDelivr, w3.org…) is already filtered.

dl.acm.org href · ×5
github.com href · ×2
www.darpa.mil href · ×2
www.ruizlab.org href · ×2
idtrees.org href · ×2
www.nsf.gov href · ×2
ieeexplore.ieee.org href · ×2
ichp.ufl.edu href · ×1
jdiqdev.acm.org href · ×1
weecology.org href · ×1
link.springer.com href · ×1
openproceedings.org href · ×1
www.ctsi.ufl.edu href · ×1
www.mdpi.com href · ×1
cwiki.apache.org href · ×1
www.eng.ufl.edu href · ×1
arxiv.org href · ×1
tac.nist.gov href · ×1
papers.nips.cc href · ×1
nursing.ufl.edu href · ×1
madlib.apache.org href · ×1
globenewswire.com href · ×1
api.w.org href · ×1
www.vldb.org href · ×1
aclanthology.org href · ×1
gmpg.org href · ×1
www.isi.edu href · ×1
nsfcbl.org href · ×1
www.ecodse.org href · ×1

History

First observed
2026-07-25 05:42
Last observed
2026-07-25 05:42
Scan observations
2

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