sfn.org - robtex.com

sfn.org

DNSSEC⚠️ Not signed
A40.83.38.50🇺🇸 Microsoft40.80.0.0/12
PTRwebcdprod.sfn.org
NSns27.worldnic.com ⭐
A162.159.26.132Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-162-159-26-132.defastlink.net
NSns28.worldnic.com
A162.159.27.77Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-162-159-27-77.defastlink.net
MXd30206a.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
MXd30206b.ess.barracudanetworks.com(2)
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
TXTatlassian-sending-domain-verification=afe56a26-3475-4c58-86ab-ee8e70dbd560
TXT7t0fms1ul55f32g60ao2b2s3en
TXTatlassian-domain-verification=2h4nIo26O4C21W3Rwq49xXHuLyNDi1b8JRqX1ooeHBPaOEf...
TXTbr3q8pks89fuibpp7g5t15ede1
TXTAtlassian-domain-verification=xxMVEazwioHcppaHLVp7KnA9Eo2RAxmxwyPaUL8aX5ndaIe...
TXTMS=ms93646379
TXTv=spf1 ip4:13.82.208.111/32 ip4:13.90.128.153/32 ip4:52.170.248.73/32 ip4:216...
TXTif1sc485k6mhtu2l8g9aphoo9d
TXT17ifejtugsbotg51rpl2ntuunp
TXT9918b0c38c0a43bc6a0fdec972d55aa67979760d
SOANS27.WORLDNIC.COMnamehost@WORLDNIC.COM serial=126021012

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1771291736
rank #18406 globally
rank #1985 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #69,008

Subdomains

preview.sfn.org
email.sfn.org
jn.sfn.org
web1new.sfn.org
ebiz.sfn.org
apu.sfn.org
web.sfn.org
webcdprod.sfn.org
www.sfn.org
ws.sfn.org
eneuro.sfn.org

Same first word

sfn.be
sfn.vn
sfn.co
sfn.ro
sfn.at
sfn.pl
sfn.de
sfn.ie
sfn.lt
sfn.nl
sfn.com
sfn.io
sfn.com.tw
sfn.email
sfn.tv
sfn.sg
sfn.im
sfn.cz
sfn.gr
sfn.es
sfn.cn
sfn.ca
sfn.net
sfn.me
sfn.us
sfn.it
sfn.is
sfn.ch
sfn.se
sfn.no
sfn.cc
sfn.co.za
sfn.info
sfn.org
sfn.org.cn

Similar names

fsn.fo
nfs.no
nsf.partners
nsf.it
nsf.tv
fns.lu
fns.ru
fsn.io
snf.la
fsn.co.nz
nfs.gov.sg
fsn.org.rs
nsf.org.cn
nfs.pl
snf.co.uk
nfs.cn
nfs.ro
snf.biz
fns.at
nfs.ch
nsf.cz
nsf.dk
fns.jp
fns.sk
fsn.ch
nfs.go.kr
nsf.gov.lk
fsn.cc
fsn.de
nsf.fi
fns.info
nfs.tw
nfs.es
nsf.se
snf.co.kr
snf.be
fns.hu
snf.fr
snf.ca
nfs.pt
nfs.co
nsf.ca
fsn.co.id
nsf.es
nfs.ru
snf.eu
fsn.pl
nfs.net
fsn.cn
nsf.cn
snf.co.jp
fsn.nl
nfs.com
fns.fi
snf.is
fsn.me
snf.pl
nfs.sh
fns.kz
fsn.co.uk
snf.de
nfs.gmbh
snf.ro
fsn.network
nfs.nz
nfs.com.ua
nfs.com.na
nfs.dk
fsn.ro
nsf.be
nsf.co.za
nfs.by
nfs.as
nfs.fi
fsn.com
nfs.style
fns.gr
nsf.cl
fns.nu
nfs.mx
snf.co
nfs.biz
snf.in
nfs.com.tw
snf.com.my
fsn.co
nsf.email
fsn.is

DNS History

7 records (5 active, 2 former)

20162017201820192020202120222023202420252026NSns27.worldnic.comns28.worldnic.comMXd30206a.ess.barracudanetworks.comd30206b.ess.barracudanetworks.comA40.83.38.50204.71.142.14040.77.100.10
●NSns27.worldnic.com2015-08-20 → 2026-03-01 · 2 obs
● 2015-08-20 01:03:20
● 2026-03-01 20:42:08
●NSns28.worldnic.com2015-08-20 → 2026-03-01 · 2 obs
● 2015-08-20 01:03:20
● 2026-03-01 20:42:08
●MXd30206a.ess.barracudanetworks.com2015-08-20 → 2026-03-01 · 4 obs
● 2015-08-20 01:03:20
● 2020-11-20 16:38:42
○ 2026-02-28 02:04:46
● 2026-03-01 20:42:08
●MXd30206b.ess.barracudanetworks.com2015-08-20 → 2026-03-01 · 4 obs
● 2015-08-20 01:03:20
● 2020-11-20 16:38:42
○ 2026-02-28 02:04:46
● 2026-03-01 20:42:08
○A204.71.142.1402015-08-20 → 2017-01-14 · 4 obs
● 2015-08-20 01:03:20
● 2017-01-14 13:53:56
○ 2020-11-20 16:38:42
○ 2026-03-01 20:42:08
○A40.77.100.102020-11-20 → 2020-11-20 · 4 obs
○ 2017-01-14 13:53:56
● 2020-11-20 16:38:42
○ 2026-02-28 02:04:46
○ 2026-03-01 20:42:08
●A40.83.38.502026-02-28 → 2026-03-01 · 3 obs
○ 2020-11-20 16:38:42
● 2026-02-28 02:04:46
● 2026-03-01 20:42:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
sfn.orgns27.worldnic.com, ns28.worldnic.com-

✅ Authoritative Response

Server: 162.159.26.132

NS records: ns27.worldnic.com, ns28.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sfn.org (unsigned zone)

⏱️ Timing

Total: 285ms | Queries: -

📄 Records

TypeCountSample Data
A140.83.38.50
NS2ns28.worldnic.com, ns27.worldnic.com
MX2d30206b.ess.barracudanetworks.com (pri: , d30206a.ess.barracudanetworks.com (pri:
TXT1017ifejtugsbotg51rpl2ntuunp, atlassian-sending-domain-verification=af...
SOA1NS27.WORLDNIC.COM namehost.WORLDNIC.COM

Analysis

Hierarchy

sfn.org is the parent of preview.sfn.org, email.sfn.org, jn.sfn.org, web1new.sfn.org, ebiz.sfn.org and several other host names.

IP Addresses

sfn.org points to a single IP: 40.83.38.50.

Other host names such as brainfacts.org, www.brainfacts.org, webcdprod.sfn.org and www.sfn.org share IP numbers with sfn.org.

Name Servers

sfn.org's delegation is to two name servers ns27.worldnic.com and ns28.worldnic.com.

sfn.org shares the same name server configuration as other domains, such as ashpitel.com, americanacadenyofeyesurgery.net, jobcraft.mobi, tvsc.org and recordnotfound.com.

Host names with a single IP:

ns27.worldnic.com resolves to 162.159.26.132.

ns28.worldnic.com resolves to 162.159.27.77.

Mail Servers

Two mail servers d30206a.ess.barracudanetworks.com and d30206b.ess.barracudanetworks.com handle sfn.org.

Host names with three IP numbers

Host d30206a.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255

Host d30206b.ess.barracudanetworks.com points to 209.222.82.252, 209.222.82.253 and 209.222.82.255

Host names that point to 209.222.82.252: d30206a.ess.barracudanetworks.com and d30206b.ess.barracudanetworks.com

Host names that point to 209.222.82.253: d30206a.ess.barracudanetworks.com and d30206b.ess.barracudanetworks.com

Host names that point to 209.222.82.255: d30206a.ess.barracudanetworks.com and d30206b.ess.barracudanetworks.com