crf.org - robtex.com

crf.org

DNSSEC⚠️ Not signed
A157.245.250.3🇺🇸 DIGITALOCEAN
PTR333554.cloudwaysapps.com
NSns-1372.awsdns-43.org ⭐
A2600:9000:5305:5c00::1🇺🇸 Amazon
PTRns-1372.awsdns-43.org
A205.251.197.92🇺🇸 Amazon
PTRns-1372.awsdns-43.org
NSns-139.awsdns-17.com
A2600:9000:5300:8b00::1🇺🇸 Amazon
PTRns-139.awsdns-17.com
A205.251.192.139🇺🇸 Amazon
PTRns-139.awsdns-17.com
NSns-1595.awsdns-07.co.uk
A2600:9000:5306:3b00::1🇺🇸 Amazon
PTRns-1595.awsdns-07.co.uk
A205.251.198.59🇺🇸 Amazon
PTRns-1595.awsdns-07.co.uk
NSns-639.awsdns-15.net
A2600:9000:5302:7f00::1🇺🇸 Amazon
PTRns-639.awsdns-15.net
A205.251.194.127🇺🇸 Amazon
PTRns-639.awsdns-15.net
MXcrf-org.mail.protection.outlook.com ⭐
TXT0ed1fe018a9204f79613c64fcfb5d4aadc3a822bc5
TXT773e19d56bf000035e319b05ddab69028926b19128da9e34ee
TXTMS=ms44581861
TXTYixclaMe+JvnEdtGXYH6U7CDPfd1HMlZikUCTkcUDLM=
TXTadobe-idp-site-verification=317b62a3b02a5cec5c523f926fb2e2beb76d355c3d994a795...
TXTadobe-sign-verification=e8fa60e09595dd095807f66bf95c946
TXTapple-domain-verification=uIsDAlHeYW5e90a7
TXTdocusign=0e08d9f2-bef2-4230-9704-514247309e46
TXTgoogle-site-verification=JIetGiwQJ7k5WsqbEd00RGVToWr7XRzpeaqJ-qx2EU0
TXTintersight=8c6e9d97844df1c287a2eea1be20f9597a7361a184a2cb604d496b3d3da893c2
TXTjamf-site-verification=1lC7uH8zyMnNTEX2vTTgyw
TXTuber-domain-verification=7e4727f0-d438-4ef2-9670-35b6ea4b217c
TXTv=spf1 include:us._netblocks.mimecast.com ip4:208.109.80.0/24 include:spf.pro...
TXTzenqms-domain-verification=9d3c70efe9228053a479671e44bf6ada8fd538887dfd59774e...
TXTzenqms-domain-verification=c4747bc07e8e5462105e0eb37fcc3f072c1f5c908f9d2694df...
SOAns-1372.awsdns-43.orgawsdns-hostmaster@amazon.com serial=1

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 #509850 globally
rank #39484 in the tld
📈 Tranco rank: #831,940

Up

apps.crf.org
e.crf.org
agenda.crf.org
www.crf.org

Same first word

crf.me
crf.hu
crf.org.au
crf.org
crf.it
crf.rs
crf.com.br
crf.co.ke
crf.cn
crf.se
crf.hk
crf.ch
crf.pl
crf.cc
crf.pt
crf.kr
crf.bio
crf.org.nz
crf.ru
crf.de
crf.be
crf.com.au
crf.dk
crf.es
crf.net
crf.nl
crf.org.uk
crf.koeln
crf.at
crf.com
crf.co.nz
crf.nu
crf.co
crf.cl
crf.email
crf.in
crf.info
crf.us
crf.co.za
crf.org.cn
crf.jp
crf.mb.ca

Similar names

rfc.com.tn
rfc.fi
cfr.org
frc.fit
frc.org.uk
rfc.org
rfc.com
fcr.lt
cfr.ae
cfr.com
cfr.ru
frc.team
fcr.com.br
frc.cl
cfr.fit
rfc.jp
rfc.ca
fcr.pl
fcr.com.tw
rfc.de
rfc.eu
rfc.se
fcr.re.it
rcf.com.br
rcf.be
rfc.co.za
cfr.co.kr
rfc.mx
cfr.ro
cfr.dk
rfc.com.tr
fcr.ca
frc.gov.au
rfc.tv
rfc.fr
frc.cc
frc.org
rcf.at
cfr.ph
rfc.ph
frc.pt
cfr.trieste.it
frc.com.ua
frc.gov
rcf.fi
fcr.io
rfc.bh
rfc.net
rcf.vn
frc.us.com
cfr.su
cfr.co
rcf.jp
frc.org.nz
frc.ru
rfc.in
fcr.cz
cfr.pw
cfr.asia
cfr.eti.br
cfr.cc
frc.kz
rfc.jo
rcf.co.jp
rfc.at
frc.eu
cfr.org.au
fcr.hu
rcf.kr
fcr.com.tr
rfc.cz
fcr.org
frc.edu
cfr.no
fcr.kasserver.com
fcr.co.jp
frc.camp
rfc.by
cfr.de
rfc.com.au
frc.co
cfr.ma
frc.uk
frc.com.cn
fcr.jp
rfc.com.ru

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSns-1372.awsdns-43.orgns-139.awsdns-17.comns-1595.awsdns-07.co.ukns-639.awsdns-15.netns1.p28.dynect.netns2.p28.dynect.netns3.p28.dynect.netns4.p28.dynect.netMXcrf-org.mail.protection.outlook.comA157.245.250.3104.236.183.132198.171.241.190
●NSns-1372.awsdns-43.org2026-02-21 → 2026-02-21 · 3 obs
○ 2017-01-14 03:27:10
● 2026-02-21 20:08:14
● 2026-02-21 20:08:16
●NSns-139.awsdns-17.com2026-02-21 → 2026-02-21 · 3 obs
○ 2017-01-14 03:27:10
● 2026-02-21 20:08:14
● 2026-02-21 20:08:16
●NSns-1595.awsdns-07.co.uk2026-02-21 → 2026-02-21 · 3 obs
○ 2017-01-14 03:27:10
● 2026-02-21 20:08:14
● 2026-02-21 20:08:16
●NSns-639.awsdns-15.net2026-02-21 → 2026-02-21 · 3 obs
○ 2017-01-14 03:27:10
● 2026-02-21 20:08:14
● 2026-02-21 20:08:16
○NSns1.p28.dynect.net2015-07-06 → 2017-01-14 · 4 obs
● 2015-07-06 12:40:00
● 2017-01-14 03:27:10
○ 2026-02-21 20:08:14
○ 2026-02-21 20:08:16
○NSns2.p28.dynect.net2015-07-06 → 2017-01-14 · 4 obs
● 2015-07-06 12:40:00
● 2017-01-14 03:27:10
○ 2026-02-21 20:08:14
○ 2026-02-21 20:08:16
○NSns3.p28.dynect.net2015-07-06 → 2017-01-14 · 4 obs
● 2015-07-06 12:40:00
● 2017-01-14 03:27:10
○ 2026-02-21 20:08:14
○ 2026-02-21 20:08:16
○NSns4.p28.dynect.net2015-07-06 → 2017-01-14 · 4 obs
● 2015-07-06 12:40:00
● 2017-01-14 03:27:10
○ 2026-02-21 20:08:14
○ 2026-02-21 20:08:16
●MXcrf-org.mail.protection.outlook.com2015-07-06 → 2026-02-21 · 2 obs
● 2015-07-06 12:40:00
● 2026-02-21 20:08:16
○A104.236.183.1322016-03-02 → 2017-01-14 · 5 obs
○ 2015-11-12 12:08:56
● 2016-03-02 14:03:38
● 2017-01-14 03:27:10
○ 2026-02-21 20:08:14
○ 2026-02-21 20:08:16
●A157.245.250.32026-02-21 → 2026-02-21 · 3 obs
○ 2017-01-14 03:27:10
● 2026-02-21 20:08:14
● 2026-02-21 20:08:16
○A198.171.241.1902015-07-06 → 2015-11-12 · 4 obs
● 2015-07-06 12:40:00
● 2015-11-12 12:08:56
○ 2016-03-02 14:03:38
○ 2026-02-21 20:08:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
crf.orgns-139.awsdns-17.com, ns-639.awsdns-15.net, ns-1372.awsdns-43.org, ns-1595.awsdns-07.co.uk1 record

✅ Authoritative Response

Server: 205.251.197.92

NS records: ns-139.awsdns-17.com, ns-639.awsdns-15.net, ns-1372.awsdns-43.org, ns-1595.awsdns-07.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crf.org (unsigned zone)

⏱️ Timing

Total: 629ms | Queries: -

📄 Records

TypeCountSample Data
A1157.245.250.3
NS4ns-1372.awsdns-43.org, ns-139.awsdns-17.com...
MX1crf-org.mail.protection.outlook.com (pri
TXT150ed1fe018a9204f79613c64fcfb5d4aadc3a822b, 773e19d56bf000035e319b05ddab69028926b191...
SOA1ns-1372.awsdns-43.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-1372.awsdns-43.org)

AI analysis

crf.org is a parent of apps.crf.org, e.crf.org, agenda.crf.org and www.crf.org.

crf.org points to a single IP number: 157.245.250.3.

Other host names, for instance skirballresearch.org, share IP numbers with crf.org.

crf.org is delegated to four name servers: ns-139.awsdns-17.com, ns-639.awsdns-15.net, ns-1372.awsdns-43.org and ns-1595.awsdns-07.co.uk.

crf.org shares name servers with other domains at least partially, for instance holisticobgyn.com, fundrr.co.za, abas.cloud, voosbaratos.pt and healthcon.com.

these name servers are often used together with the name servers ns-1768.awsdns-29.co.uk.

Host names with two IP numbers:

ns-139.awsdns-17.com resolves to 2600:9000:5300:8b00::1 and 205.251.192.139.

ns-639.awsdns-15.net resolves to 2600:9000:5302:7f00::1 and 205.251.194.127.

ns-1372.awsdns-43.org resolves to 2600:9000:5305:5c00::1 and 205.251.197.92.

ns-1595.awsdns-07.co.uk resolves to 2600:9000:5306:3b00::1 and 205.251.198.59.

The mail server for crf.org is crf-org.mail.protection.outlook.com.