Check-Host.cc

Domain

firstmail.ltd

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

Run a live full scan of firstmail.ltd

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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Hosting IPs
1
A/AAAA targets
Subdomains
15
CT + scan + body
Record Types
4
seen in DNS
Observed Certs
5
in our scans

DNS Records

A
5.252.34.102
AAAA
MX
5 mx.firstmail.ltd
NS
amber.ns.cloudflare.com, ernest.ns.cloudflare.com
TXT
_globalsign-domain-verification=rJoHmvZYoSl7FnKHQyB8AQ3rvMcIBINcUnpuZYU9Yo, google-site-verification=Sv2Q6oSDeVXdbqUja1XGsCjjPMGD_r9nOwm7tjQrs0k, google-site-verification=ln7KyIKT4dbtYs1STbZdy-i5-JVwf8L_I1mFvb-nEgs, v=DMARC1; p=none;, v=spf1 a mx ip4:51.195.237.13 ~all, yandex-verification: 84295b69ce67d192
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

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

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

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

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

43.128.148.57:80 href · ×1
172.245.86.144:443 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.

a0bd5dd3a88780b4… google · argon2026h2
Subject: *.firstmail.ltd
Issuer: GlobalSign GCC R6 AlphaSSL CA 2025
SANs: *.firstmail.ltd, firstmail.ltd
Valid: 2025-10-09 04:00:26 → 2026-11-10 04:00:25
b15118ea796bac19… cloudflare · nimbus2026
Subject: *.firstmail.ltd
Issuer: GlobalSign GCC R6 AlphaSSL CA 2025
SANs: *.firstmail.ltd, firstmail.ltd
Valid: 2025-10-09 04:00:26 → 2026-11-10 04:00:25
a0bd5dd3a88780b4… cloudflare · nimbus2026
Subject: *.firstmail.ltd
Issuer: GlobalSign GCC R6 AlphaSSL CA 2025
SANs: *.firstmail.ltd, firstmail.ltd
Valid: 2025-10-09 04:00:26 → 2026-11-10 04:00:25
b15118ea796bac19… google · xenon2026h2
Subject: *.firstmail.ltd
Issuer: GlobalSign GCC R6 AlphaSSL CA 2025
SANs: *.firstmail.ltd, firstmail.ltd
Valid: 2025-10-09 04:00:26 → 2026-11-10 04:00:25

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 5.252.34.102 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
NS ernest.ns.cloudflare.com 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
MX 5 mx.firstmail.ltd 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
NS amber.ns.cloudflare.com 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
TXT google-site-verification=ln7KyIKT4dbtYs1STbZdy-i5-JVwf8L_I1mFvb-nEgs 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
TXT _globalsign-domain-verification=rJoHmvZYoSl7FnKHQyB8AQ3rvMcIBINcUnpuZYU9Yo 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
TXT google-site-verification=Sv2Q6oSDeVXdbqUja1XGsCjjPMGD_r9nOwm7tjQrs0k 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
TXT v=spf1 a mx ip4:51.195.237.13 ~all 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
TXT v=DMARC1; p=none; 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980
TXT yandex-verification: 84295b69ce67d192 2026-05-26 09:29:06.776 2026-07-15 20:04:13.980