fo4.com - dns.ninja

fo4.com

DNSSEC⚠️ Not signed
A216.92.181.40🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203
PTRfo4.com
NSdns4.pair.com
A2607:f440::d85c:fc0a🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203
PTRdns4.pair.com
A216.92.252.10🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203
PTRdns4.pair.com
NSns9.ns0.com
MXmail2.g3.pair.com
A2607:f440::d85c:53ed🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203
PTRmail2.g3.pair.com
A216.92.83.237🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203
PTRmail2.g3.pair.com
TXTv=spf1 include:webmail.pair.com include:relay.pair.com include:pairlist.com a...
SOAdns4.pair.comroot@pair.com 2026-04-28 #8

com

PTR for

Same first word

Similar names

DNS History

11 records (4 active, 7 former)

20162017201820192020202120222023202420252026NSdns4.pair.comns9.ns0.comns.factorof4.comns.fo4.netns2.factorof4.comns3.factorof4.netMXmail2.g3.pair.commail.fo4.netmango.fo4.netA216.92.181.40209.240.82.1
NSdns4.pair.com2026-03-22 → 2026-07-04 · 3 obs
○ 2016-11-29 07:46:04
● 2026-03-22 02:50:18
● 2026-07-04 08:33:22
NSns.factorof4.com2015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
NSns.fo4.net2015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
NSns2.factorof4.com2015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
NSns3.factorof4.net2015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
NSns9.ns0.com2026-03-22 → 2026-07-04 · 3 obs
○ 2016-11-29 07:46:04
● 2026-03-22 02:50:18
● 2026-07-04 08:33:22
MXmail.fo4.net2015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
MXmail2.g3.pair.com2026-03-22 → 2026-07-04 · 3 obs
○ 2016-11-29 07:46:04
● 2026-03-22 02:50:18
● 2026-07-04 08:33:22
MXmango.fo4.net2015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
A209.240.82.12015-07-22 → 2016-11-29 · 4 obs
● 2015-07-22 17:42:36
● 2016-11-29 07:46:04
○ 2026-03-22 02:50:18
○ 2026-07-04 08:33:22
A216.92.181.402026-03-22 → 2026-07-04 · 3 obs
○ 2016-11-29 07:46:04
● 2026-03-22 02:50:18
● 2026-07-04 08:33:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net...-
fo4.comdns4.pair.com, ns9.ns0.com4 records

✅ Authoritative Response

Server:216.92.252.10

NS records: dns4.pair.com, ns9.ns0.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fo4.com (unsigned zone)

⏱️ Timing

Total: 345ms | Queries: -

📄 Records

TypeCountSample Data
A1216.92.181.40
NS2dns4.pair.com, ns9.ns0.com
MX1mail2.g3.pair.com (pri: 50)
TXT1v=spf1 include:webmail.pair.com include:
SOA1dns4.pair.com root.pair.com

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns4.pair.com, dns4.pair.com, ns9.ns0.com...)

Analysis

IP Addresses

fo4.com has exactly one IP address — 216.92.181.40.

constancecasey.com, eddererickson.com, nygaardnotes.org plus two other host names have IP numbers in common with fo4.com.

Name Servers

fo4.com uses two name servers for its delegation: ns9.ns0.com and dns4.pair.com.

The name server configuration of fo4.com is shared with other domains, for instance towerstudio.com, 1stopresume.com, vitato.com and two others.

The name servers of fo4.com overlap at least partially with those of other domains — among them ckwei.com, doc-o-matic.org, keyboardchronicles.com and two more.

These name servers tend to appear together with the name servers ns2.quickserve.com, ns8.ns0.com and ns7.ns0.com, plus two others.

Host names pointing to two IP addresses:

dns4.pair.com directs traffic to 216.92.252.10 and 2607:f440::d85c:fc0a.

Mail Servers

fo4.com uses one mail server — mail2.g3.pair.com.

The mail server setup of fo4.com matches that of other domains such as crowleyrolloffs.com, danielleofri.com, silencethehorns.org and two others.

mail2.g3.pair.com resolves to two IP numbers — 216.92.83.237 and 2607:f440::d85c:53ed.