Domain
4ff.io
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of 4ff.io
On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.
Hosting IPs
12
A/AAAA targets
Subdomains
5
CT + scan + body
Record Types
4
seen in DNS
Observed Certs
12
in our scans
DNS Records
A
18.239.105.120, 18.239.105.30, 18.239.105.31, 18.239.105.89, 18.239.50.105, 18.239.50.112, 18.239.50.23, 18.239.50.53
AAAA
—
MX
1 aspmx.l.google.com, 10 aspmx2.googlemail.com, 10 aspmx3.googlemail.com, 5 alt1.aspmx.l.google.com, 5 alt2.aspmx.l.google.com
NS
ns-1045.awsdns-02.org, ns-1695.awsdns-19.co.uk, ns-317.awsdns-39.com, ns-966.awsdns-56.net
TXT
google-site-verification=T0pDNs_g2v_SHVgkTPjNz5AI7r465FjO_kKrcGUliZM, v=spf1 -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 |
|---|---|---|
| 4ff.io | 2026-07-26 13:29:58.008 |
Tech Stack
Tech detection pending
Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.
TLS Certificates
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: apollo.foreflight.com
Issuer: Amazon RSA 2048 M04
SANs: *.apollo.foreflight.com, *.foreflight.com, 4ff.io, apollo.foreflight.com
Subject: mapteam.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.mapteam.foreflight.com, *.mapteam.foreflight.io, 4ff.io, mapteam.foreflight.com, mapteam.foreflight.io
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: apollo.foreflight.com
Issuer: Amazon RSA 2048 M04
SANs: *.apollo.foreflight.com, *.foreflight.com, 4ff.io, apollo.foreflight.com
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: mapteam.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.mapteam.foreflight.com, *.mapteam.foreflight.io, 4ff.io, mapteam.foreflight.com, mapteam.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: apollo.foreflight.com
Issuer: Amazon RSA 2048 M04
SANs: *.apollo.foreflight.com, *.foreflight.com, 4ff.io, apollo.foreflight.com
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: mapteam.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.mapteam.foreflight.com, *.mapteam.foreflight.io, 4ff.io, mapteam.foreflight.com, mapteam.foreflight.io
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: apollo.foreflight.com
Issuer: Amazon RSA 2048 M04
SANs: *.apollo.foreflight.com, *.foreflight.com, 4ff.io, apollo.foreflight.com
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
Subject: apollo.foreflight.com
Issuer: Amazon RSA 2048 M04
SANs: *.apollo.foreflight.com, *.foreflight.com, 4ff.io, apollo.foreflight.com
Subject: mapteam.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.mapteam.foreflight.com, *.mapteam.foreflight.io, 4ff.io, mapteam.foreflight.com, mapteam.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: mapteam.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.mapteam.foreflight.com, *.mapteam.foreflight.io, 4ff.io, mapteam.foreflight.com, mapteam.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, 4ff.io, prod.foreflight.com, prod.foreflight.io
Subject: qa.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.fdp.foreflight.com, *.foreflight.com, *.qa.foreflight.com, *.voyager.foreflight.com, 4ff.io, qa.foreflight.com
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.
7c53084c21c8c542…
google · xenon2026h2
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: prod.foreflight.com, *.prod.foreflight.com, *.foreflight.com, *.prod.foreflight.io, prod.foreflight.io, 4ff.io
Valid: 2026-03-05 00:00:00 → 2026-09-18 23:59:59
a688b11812a5fe10…
google · xenon2026h2
Subject: prod.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: prod.foreflight.com, *.prod.foreflight.com, *.foreflight.com, *.prod.foreflight.io, prod.foreflight.io, 4ff.io
Valid: 2026-03-05 00:00:00 → 2026-09-18 23:59:59
9582c6ff03c781f0…
google · xenon2026h2
Subject: *.auth.foreflight.com
Issuer: Amazon RSA 2048 M01
SANs: *.auth.foreflight.com, prod.foreflight.com, *.foreflight.com, *.prod.foreflight.com, *.prod.foreflight.io, prod.foreflight.io, 4ff.io
Valid: 2026-02-27 00:00:00 → 2026-09-12 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 |
|---|---|---|---|
| TXT | v=spf1 -all | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| NS | ns-1045.awsdns-02.org | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| NS | ns-966.awsdns-56.net | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| NS | ns-1695.awsdns-19.co.uk | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| MX | 10 aspmx3.googlemail.com | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| NS | ns-317.awsdns-39.com | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| A | 65.8.131.118 | 2026-05-26 00:24:59.887 | 2026-06-23 12:06:40.727 |
| MX | 10 aspmx2.googlemail.com | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| A | 65.8.131.7 | 2026-05-26 00:24:59.887 | 2026-06-23 12:06:40.727 |
| MX | 5 alt2.aspmx.l.google.com | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| MX | 1 aspmx.l.google.com | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| TXT | google-site-verification=T0pDNs_g2v_SHVgkTPjNz5AI7r465FjO_kKrcGUliZM | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| MX | 5 alt1.aspmx.l.google.com | 2026-05-26 00:24:59.887 | 2026-07-26 13:29:58.008 |
| A | 65.8.131.69 | 2026-05-26 00:24:59.887 | 2026-06-23 12:06:40.727 |
| A | 65.8.131.127 | 2026-05-26 00:24:59.887 | 2026-06-23 12:06:40.727 |
| A | 18.239.50.53 | 2026-06-14 22:36:55.780 | 2026-07-26 13:29:58.008 |
| A | 18.239.50.23 | 2026-06-14 22:36:55.780 | 2026-07-26 13:29:58.008 |
| A | 18.239.50.112 | 2026-06-14 22:36:55.780 | 2026-07-26 13:29:58.008 |
| A | 18.239.50.105 | 2026-06-14 22:36:55.780 | 2026-07-26 13:29:58.008 |
| A | 18.239.105.89 | 2026-06-16 07:37:30.574 | 2026-06-16 08:48:30.579 |
| A | 18.239.105.31 | 2026-06-16 07:37:30.574 | 2026-06-16 08:48:30.579 |
| A | 18.239.105.30 | 2026-06-16 07:37:30.574 | 2026-06-16 08:48:30.579 |
| A | 18.239.105.120 | 2026-06-16 07:37:30.574 | 2026-06-16 08:48:30.579 |