Check-Host.cc

IP Address IPv4

45.145.100.73

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

Run a live full scan of 45.145.100.73

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
ASN
AS61323
ANS (UKFast)
Country
GB
United Kingdom
Reverse DNS
45.145.100.73.srvlist.ukfast.net
PTR
Open Ports
7
Last scan

Autonomous System

ASN
AS Name
ANS (UKFast)
AS Type
RIR
RIPE NCC
Allocated
2016-06-15
Allocation status
Allocated

Geolocation

Country
GB · United Kingdom
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-28 08:38:50

Network

RPKI

Open Ports

Port Proto Service Server Last seen
80 tcp http Apache 2026-06-16 20:51:06.000
143 tcp imap 2026-07-28 08:37:26.000
443 tcp https Apache 2026-07-19 04:55:58.000
587 tcp smtp-submission 2026-05-27 04:48:17.000
993 tcp imaps 2026-07-25 18:57:26.000
2083 tcp 2026-07-18 19:48:29.000
2096 tcp 2026-07-27 04:36:43.000

TLS Certificates

Port 443 92200cfe425c…
Subject: www.c-r-y.org.uk
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: c-r-y.org.uk, cry-ccp.org.uk, cry4friends.org.uk, myheart.org.uk, sads.org.uk, testmyheart.org.uk, www.c-r-y.org.uk, www.cry-ccp.org.uk, www.cry4friends.org.uk, www.myheart.org.uk, www.sads.org.uk, www.testmyheart.org.uk, www.yscd.org.uk, yscd.org.uk
Valid 2025-11-10 00:00:00 → 2026-11-22 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.

org.uk 95% confidence
behind AS13335 cert 92200cfe425c… · cert 92200cfe… served by 45.145.100.73 (AS61323) carries SAN c-r-y.org.uk which currently resolves through Cloudflare (AS13335) at 172.66.145.16, 104.20.28.206, 2606:4700:10::ac42:9110, 2606:4700:10::6814:1cce

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.

Web Pages

Port Page title Status Flags
443 CRY4Friends – #CRY4Friends is a campaign by CRY to highlight the grief felt by young people when they experience the death of a friend. Young Sudden Cardiac Deaths have a massive impact on our society. 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.

www.cry4friends.org.uk DNS-confirmed
www.cry4friends.org.uk 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.

twitter.com href · ×106
instagram.com href · ×65
t.co href · ×16
facebook.com href · ×16
flockler.com href · ×15
www.c-r-y.org.uk href · ×3
pbs.twimg.com href · ×3
graph.facebook.com href · ×1
scontent.xx.fbcdn.net href · ×1
issuu.com href · ×1
api.w.org href · ×1

History

First observed
2026-05-27 04:48
Last observed
2026-07-28 08:37
Scan observations
14

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