Check-Host.cc
Domain

4factor.co.za

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

Run a live full scan of 4factor.co.za

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
1
A/AAAA targets
Subdomains
7
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
2
in our scans

DNS Records

A
165.73.83.100
AAAA
MX
10 mx4086492.spe.ucebox.co.za, 32767 ms73780211.msv1.invalid
NS
ns.dns1.co.za, ns.dns2.co.za, ns.otherdns.com, ns.otherdns.net
TXT
MS=ms73780211, mailconf=https://envoy.aserv.co.za/mail/config-v1.1.xml, v=spf1 +a +mx include:spf.aserv.co.za ~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
4factor.co.za 2026-08-18 22:10:45.291
www.4factor.co.za 2026-08-18 22:10:45.291
cpanel.4factor.co.za DNS pending
mail.4factor.co.za DNS pending
webmail.4factor.co.za DNS pending

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

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

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.

1b98a25a9af9c3b7… digicert · wyvern2026h2
Subject: 4factor.co.za
Issuer: YR1
SANs: 4factor.co.za, www.4factor.co.za
Valid: 2026-08-13 06:04:10 → 2026-11-11 06:04:09
3c9f0188c8f0d3cb… google · xenon2026h2
Subject: 4factor.co.za
Issuer: YR1
SANs: 4factor.co.za, www.4factor.co.za
Valid: 2026-08-13 06:04:10 → 2026-11-11 06:04:09

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
TXT v=spf1 +a +mx include:spf.aserv.co.za ~all 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
MX 10 mx4086492.spe.ucebox.co.za 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
NS ns.otherdns.net 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
TXT MS=ms73780211 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
A 165.73.83.100 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
MX 32767 ms73780211.msv1.invalid 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
NS ns.dns2.co.za 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
NS ns.dns1.co.za 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
SRV _autodiscover._tcp 0 0 443 envoy.aserv.co.za 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
NS ns.otherdns.com 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291
TXT mailconf=https://envoy.aserv.co.za/mail/config-v1.1.xml 2026-08-18 22:10:45.291 2026-08-18 22:10:45.291