Check-Host.cc

IP Address IPv4

57.128.195.84

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

Run a live full scan of 57.128.195.84

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
AS16276
OVHcloud
Country
PL
Poland
Reverse DNS
vps-20bf8a9d.vps.ovh.net
PTR
Open Ports
2
Last scan

Autonomous System

ASN
AS Name
OVHcloud
AS Type
RIR
RIPE NCC
Allocated
2001-02-15
Allocation status
Assigned

Geolocation

Country
PL · Poland
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-22 16:10:19

Network

RPKI

Open Ports

Port Proto Service Server Last seen
22 tcp ssh 2026-07-22 11:22:35.000
443 tcp https nginx/1.22.0 (Ubuntu) 2026-07-22 16:09:57.000

TLS Certificates

Port 443 9db83500f94a…
Subject: sztos-it.com
Issuer: YE1
SANs: sztos-it.com, www.sztos-it.com
Valid 2026-06-23 11:01:40 → 2026-09-21 11:01:39
Port 443 0b8a3fe5ce22…
Subject: sztos-it.com
Issuer: E8
SANs: sztos-it.com, www.sztos-it.com
Valid 2026-04-24 09:44:53 → 2026-07-23 09:44:52
Port 443 0b8a3fe5ce22…
Subject: sztos-it.com
Issuer: E8
SANs: sztos-it.com, www.sztos-it.com
Valid 2026-04-24 09:44:53 → 2026-07-23 09:44:52

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

2 domains 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 2026-08-01.

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 SZTOS - System Zautomatyzowanego Tworzenia Opisu Statystycznego 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.

sztos-it.com 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.

doi.org href · ×27
nauka.metodolog.pl href · ×12
nowymarketing.pl href · ×12
www.bibtex.com href · ×6
sztosit.shinyapps.io href · ×6
www.mdpi.com href · ×6
www.pwe.com.pl href · ×6
dx.doi.org href · ×6
media.giphy.com href · ×3
journals.plos.org href · ×3
loanmagazine.pl href · ×3
www.termedia.pl href · ×3
upload.wikimedia.org href · ×3
pzip.pl href · ×3
www.researchgate.net href · ×3
www.corel.com href · ×3
www.frontiersin.org href · ×3
www.docker.com href · ×3
content.sciendo.com href · ×3
cejsh.icm.edu.pl href · ×3

History

First observed
2026-05-26 10:10
Last observed
2026-07-22 16:09
Scan observations
8

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