Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

open-vsx.org

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

DNS Check HTTP Check Run Full Scan .org TLD

Run a live full scan of open-vsx.org

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
18
CT + scan + body
Record Types
4
seen in DNS
Observed Certs
8
in our scans

DNS Records

A
151.101.1.242, 151.101.129.242, 151.101.193.242, 151.101.65.242
AAAA
—
MX
10 mail.eclipse.org
NS
ns-1147.awsdns-15.org, ns-1714.awsdns-22.co.uk, ns-361.awsdns-45.com, ns-761.awsdns-31.net
TXT
_yd0qtjemsx3qf79okf5br42q5rxxyu7, v=spf1 a:mail.eclipse.org mx -all
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.

Subdomains

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

Subdomain Resolves to Last seen
open-vsx.org
151.101.129.242 151.101.65.242 151.101.193.242 151.101.1.242
2026-07-26 23:10:19.856
community-staging.open-vsx.org
1970-01-01 00:00:00.000
community.open-vsx.org
1970-01-01 00:00:00.000
managed.open-vsx.org
1970-01-01 00:00:00.000
researcher-recognition.open-vsx.org
1970-01-01 00:00:00.000
staging.open-vsx.org
1970-01-01 00:00:00.000
www.open-vsx.org
1970-01-01 00:00:00.000

Tech Stack

Tech detection pending

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

TLS Certificates

63.185.202.34:443 c30b43baa64a…
Subject: *.open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.open-vsx.org, open-vsx.org
18.196.190.1:443 c30b43baa64a…
Subject: *.open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.open-vsx.org, open-vsx.org

IPs Citing This Domain

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

172.233.108.56:80 href · ×3
34.56.218.59:443 href · ×2
34.141.159.187:8080 href · ×2
178.253.42.198:443 href · ×1
43.133.216.163:443 href · ×1
192.184.87.240:443 href · ×1
195.201.234.29:443 href · ×1

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-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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

702d885930cc9fb8… google · xenon2026h2
Subject: *.open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.open-vsx.org, open-vsx.org
Valid: 2026-03-02 00:00:00 → 2026-09-16 23:59:59
c30b43baa64a0d3e… google · xenon2026h2
Subject: *.open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: *.open-vsx.org, open-vsx.org
Valid: 2026-03-02 00:00:00 → 2026-09-16 23:59:59
cbd07778a0438769… google · xenon2026h2
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org, researcher-recognition.open-vsx.org, managed.open-vsx.org, community-staging.open-vsx.org, community.open-vsx.org
Valid: 2026-02-10 00:00:00 → 2026-12-05 23:59:59
f5dccf72f84836e9… google · xenon2026h2
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org, researcher-recognition.open-vsx.org, managed.open-vsx.org, community-staging.open-vsx.org, community.open-vsx.org
Valid: 2026-02-10 00:00:00 → 2026-12-05 23:59:59
487d661a851f60ca… google · xenon2026h2
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org, researcher-recognition.open-vsx.org, managed.open-vsx.org
Valid: 2026-02-03 00:00:00 → 2026-12-05 23:59:59
a66330fdc617985c… google · xenon2026h2
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org, researcher-recognition.open-vsx.org, managed.open-vsx.org
Valid: 2026-02-03 00:00:00 → 2026-12-05 23:59:59
e1b4f82a2414c928… google · argon2026h2
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org
Valid: 2025-10-10 00:00:00 → 2026-11-10 23:59:59
5dec5b54fb9862c2… google · xenon2026h2
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org
Valid: 2025-10-10 00:00:00 → 2026-11-10 23:59:59
e1b4f82a2414c928… cloudflare · nimbus2026
Subject: open-vsx.org
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: open-vsx.org, staging.open-vsx.org, www.open-vsx.org
Valid: 2025-10-10 00:00:00 → 2026-11-10 23:59:59

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

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
A 151.101.193.242 2026-05-25 21:42:03.389 2026-07-26 23:10:19.856
A 151.101.129.242 2026-05-25 21:42:03.389 2026-07-26 23:10:19.856
A 151.101.1.242 2026-05-25 21:42:03.389 2026-07-26 23:10:19.856
A 151.101.65.242 2026-05-25 21:42:03.389 2026-07-26 23:10:19.856
NS ns-361.awsdns-45.com 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856
NS ns-761.awsdns-31.net 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856
MX 10 mail.eclipse.org 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856
TXT _yd0qtjemsx3qf79okf5br42q5rxxyu7 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856
NS ns-1714.awsdns-22.co.uk 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856
TXT v=spf1 a:mail.eclipse.org mx -all 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856
NS ns-1147.awsdns-15.org 2026-05-25 22:09:29.497 2026-07-26 23:10:19.856