rfisd.us - robtex.com

rfisd.us

DNSSEC⚠️ Not signed
A104.16.158.133Cloudflare104.16.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A104.16.159.133Cloudflare104.16.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A104.18.189.233Cloudflare104.18.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A104.18.190.233Cloudflare104.18.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSpdns05.domaincontrol.com ⭐
A2603:5:21e1::34🇺🇸 GODADDY-DNS2603:5:21e0::/44
PTRpdns05.domaincontrol.com
A97.74.110.52🇺🇸 GODADDY-DNS97.74.110.0/23
PTRpdns05.domaincontrol.com
NSpdns06.domaincontrol.com
A2603:5:22e1::34🇺🇸 GODADDY-DNS2603:5:22e0::/44
PTRpdns06.domaincontrol.com
A173.201.78.52🇺🇸 GODADDY-DNS173.201.78.0/23
PTRpdns06.domaincontrol.com
MXd303799a.ess.barracudanetworks.com ⭐
A209.222.82.252🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.253🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.255🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
MXd303799b.ess.barracudanetworks.com(5)
A209.222.82.252🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.253🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.255🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
TXTv=fd6afe61-951b-484a-923b-7a8121d6b56a
TXTv=spf1 include:spf.ess.barracudanetworks.com ip4:66.195.143.26 ip4:8.12.72.20...
TXTamazon-business-verification=af9e04f36907eb8b38e71eb981896593db74d59159da113e...
TXTgoogle-site-verification=B9HLXg_oirN9pREIgILK__go36vdfVYJEqzWjiA9qjE
TXTapple-domain-verification=lD4RSKlj0xAKsZVc
SOApdns05.domaincontrol.comdns@jomax.net 2025-09-29 #1

us

DNSSEC🔒 Signed (DS record present)
NSa.cctld.us ⭐
NSb.cctld.us
NSf.cctld.us
NSk.cctld.us
NSm.cctld.us
NSn.cctld.us
NSw.cctld.us
NSx.cctld.us
NSy.cctld.us
SOAa.cctld.usadmin@tldns.godaddy serial=1776752610

Same first word

rfisd.net
rfisd.us
rfisd.org

Similar names

firds.de
fdsri.com
idsfr.com
sirdf.com
rfids.nl
rfsid.com
drifs.com
rfids.ws
frisd.hr
difrs.com
ifrsd.org
fdirs.com
irfsd.cc
dsirf.eu
rfids.ro
rfids.lt
frdis.com
frids.com
frids.dk
rfids.net
frids.eu
frsdi.com
rfids.org
dsfri.com
dsfri.ca
sifrd.com
srfid.de

DNS History

8 records (8 active, 0 former)

NSpdns05.domaincontrol.compdns06.domaincontrol.comMXd303799a.ess.barracudanetworks.comd303799b.ess.barracudanetworks.comA104.16.158.133104.16.159.133104.18.189.233104.18.190.233
●NSpdns05.domaincontrol.com2026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●NSpdns06.domaincontrol.com2026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●MXd303799a.ess.barracudanetworks.com2026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●MXd303799b.ess.barracudanetworks.com2026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●A104.16.158.1332026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●A104.16.159.1332026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●A104.18.189.2332026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16
●A104.18.190.2332026-04-20 → 2026-04-21 · 2 obs
● 2026-04-20 06:34:58
● 2026-04-21 06:57:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
rfisd.uspdns05.domaincontrol.com, pdns06.domaincontrol.com-

✅ Authoritative Response

Server:173.201.78.52

NS records: pdns05.domaincontrol.com, pdns06.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rfisd.us (unsigned zone)

⏱️ Timing

Total: 267ms | Queries: -

📄 Records

TypeCountSample Data
A4104.16.158.133, 104.16.159.133...
NS2pdns05.domaincontrol.com, pdns06.domaincontrol.com
MX2d303799a.ess.barracudanetworks.com (pri:, d303799b.ess.barracudanetworks.com (pri:
TXT5v=fd6afe61-951b-484a-923b-7a8121d6b56a, v=spf1 include:spf.ess.barracudanetworks...
SOA1pdns05.domaincontrol.com dns.jomax.net

Analysis

IP Addresses

rfisd.us maps to four IP numbers: 104.16.158.133, 104.16.159.133, 104.18.189.233 and 104.18.190.233.

Other host names, for instance bethlehemhigh.org, blairschool.org, sunnybraemiddleschool.org, wvschools.net and svdons.com share IP numbers with rfisd.us.

Name Servers

Two name servers pdns05.domaincontrol.com and pdns06.domaincontrol.com handle delegation for rfisd.us.

rfisd.us uses the same name server setup as other domains, for example esqina.com, acipco.org, tnsqc.com, rhinomed.com.au and 09537.com.

rfisd.us shares name servers with other domains at least partially, for instance unva.edu, chpmail.com and sicherheits-checker.com.

Host names with two IP numbers:

pdns05.domaincontrol.com points to: 2603:5:21e1::34 and 97.74.110.52

pdns06.domaincontrol.com points to: 2603:5:22e1::34 and 173.201.78.52

Mail Servers

rfisd.us is handled by two mail servers: d303799a.ess.barracudanetworks.com and d303799b.ess.barracudanetworks.com.

Host names with three IP numbers:

d303799a.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255.

d303799b.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255.

Hosts pointing to 209.222.82.252: d303799a.ess.barracudanetworks.com and d303799b.ess.barracudanetworks.com.

Hosts pointing to 209.222.82.253: d303799a.ess.barracudanetworks.com and d303799b.ess.barracudanetworks.com.

Hosts pointing to 209.222.82.255: d303799a.ess.barracudanetworks.com and d303799b.ess.barracudanetworks.com.

Both d303799a.ess.barracudanetworks.com and d303799b.ess.barracudanetworks.com point to the same three IPs: 209.222.82.252, 209.222.82.253 and 209.222.82.255.