kellogg.edu - robtex.com

kellogg.edu

DNSSEC⚠️ Not signed
A2606:4700:20::681a:6ea🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::681a:7ea🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::ac43:4b48🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.6.234Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.7.234Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.75.72🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbrit.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a4e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
A2803:f800:50::6ca2:c04e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbrit.ns.cloudflare.com
A2a06:98c1:50::ac40:204e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbrit.ns.cloudflare.com
A108.162.192.78🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
A172.64.32.78🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
A173.245.58.78🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
NSscott.ns.cloudflare.com
A2606:4700:58::adf5:3be6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
A2803:f800:50::6ca2:c1e6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRscott.ns.cloudflare.com
A2a06:98c1:50::ac40:21e6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRscott.ns.cloudflare.com
A108.162.193.230🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
A172.64.33.230🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
A173.245.59.230🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRscott.ns.cloudflare.com
MXd226335a.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
MXd226335b.ess.barracudanetworks.com(20)
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
TXT2o2u6e8pjc470k9je4uchognf4.
TXT3l31js58a28o9pvo8rlhb5e9de
TXT4r63ddbtadqb8b5qehj8005q42
TXTMS=8E7DEF77DA335F33D6D1708525D11960EC7682C5
TXTbrevo-code:c3e74014bed281f9a074960c89b3247e
TXTgoogle-site-verification=0uolHBn-IPjQG9TgOR9k7JuFVnOQ_Jnr8QBQEWYidBI
TXTgoogle-site-verification=ux-kRfm5doCq0TRgJwlL8uDOLW81OX4XAUd0zD6QTmY
TXTsophos-domain-verification=661734d56f243d70bc4dfd6cb4b98be99e9bdcda57c8f20353...
TXTv=spf1 ip4:216.17.112.23 ip4:52.70.132.134 ip4:209.222.82.168 ip4:64.235.144....
HTTPSHTTP/2 ✓ hints match
IPv4104.26.6.234, 104.26.7.234, 172.67.75.72
IPv62606:4700:20::681a:6ea, 2606:4700:20::681a:7ea, 2606:4700:20::ac43:4b48
SOAbrit.ns.cloudflare.comdns@cloudflare.com serial=2397433910

edu

DNSSEC🔒 Signed (DS record present)
NSa.edu-servers.net ⭐
NSb.edu-servers.net
NSc.edu-servers.net
NSd.edu-servers.net
NSe.edu-servers.net
NSf.edu-servers.net
NSg.edu-servers.net
NSh.edu-servers.net
NSi.edu-servers.net
NSj.edu-servers.net
NSk.edu-servers.net
NSl.edu-servers.net
NSm.edu-servers.net
SOAa.edu-servers.netnstld@verisign-grs.com serial=1771608165
rank #207575 globally
rank #1941 in the tld
WOT: SAFE (70/100)
📈 Tranco rank: #235,539

Subdomains

linux1.kellogg.edu
dns1.kellogg.edu
catalog.kellogg.edu
dns2.kellogg.edu
sierra-db.kellogg.edu
academic.kellogg.edu
lrc1.kellogg.edu
www.kellogg.edu
contentdm.kellogg.edu

Same first word

kellogg.fr
kellogg.se
kellogg.co.nz
kellogg.com.au
kellogg.org
kellogg.dk
kellogg.info
kellogg.awsapps.com
kellogg.us
kellogg.careers
kellogg.com.mx
kellogg.co.uk
kellogg.it
kellogg.co
kellogg.fi
kellogg.net.au
kellogg.eu
kellogg.co.kr
kellogg.com.tw
kellogg.de
kellogg.be
kellogg.com
kellogg.at
kellogg.com.br
kellogg.net
kellogg.ca
kellogg.ch
kellogg.co.za
kellogg.ru
kellogg.edu

Similar names

kollegg.ch
kloggle.com
kollegg.com

DNS History

15 records (10 active, 5 former)

20162017201820192020202120222023202420252026NSbrit.ns.cloudflare.comscott.ns.cloudflare.comdns1.kellogg.edudns2.kellogg.eduMXd226335a.ess.barracudanetworks.comd226335b.ess.barracudanetworks.comexforefront.kellogg.eduA104.26.6.234104.26.7.234172.67.75.722606:4700:20::681a:6ea2606:4700:20::681a:7ea2606:4700:20::ac43:4b48192.124.249.153198.235.255.48
●NSbrit.ns.cloudflare.com2026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
○NSdns1.kellogg.edu2015-08-08 → 2018-09-20 · 4 obs
● 2015-08-08 15:55:30
● 2018-09-20 14:53:52
○ 2026-02-15 19:04:30
○ 2026-03-01 16:57:26
○NSdns2.kellogg.edu2015-08-08 → 2018-09-20 · 4 obs
● 2015-08-08 15:55:30
● 2018-09-20 14:53:52
○ 2026-02-15 19:04:30
○ 2026-03-01 16:57:26
●NSscott.ns.cloudflare.com2026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
●MXd226335a.ess.barracudanetworks.com2026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
●MXd226335b.ess.barracudanetworks.com2026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
○MXexforefront.kellogg.edu2015-08-08 → 2018-09-20 · 4 obs
● 2015-08-08 15:55:30
● 2018-09-20 14:53:52
○ 2026-02-15 19:04:30
○ 2026-03-01 16:57:26
●A104.26.6.2342026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
●A104.26.7.2342026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
●A172.67.75.722026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
○A192.124.249.1532017-06-28 → 2018-09-20 · 5 obs
○ 2016-12-21 07:52:34
● 2017-06-28 08:23:50
● 2018-09-20 14:53:52
○ 2026-02-15 19:04:30
○ 2026-03-01 16:57:26
○A198.235.255.482015-08-08 → 2016-12-21 · 4 obs
● 2015-08-08 15:55:30
● 2016-12-21 07:52:34
○ 2017-06-28 08:23:50
○ 2026-03-01 16:57:26
●A2606:4700:20::681a:6ea2026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
●A2606:4700:20::681a:7ea2026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26
●A2606:4700:20::ac43:4b482026-02-15 → 2026-03-01 · 3 obs
○ 2018-09-20 14:53:52
● 2026-02-15 19:04:30
● 2026-03-01 16:57:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
edua.edu-servers.net, b.edu-servers.net, c.edu-servers.net, d.edu-servers.net...-
kellogg.edubrit.ns.cloudflare.com, scott.ns.cloudflare.com-

✅ Authoritative Response

Server: 108.162.193.230

NS records: brit.ns.cloudflare.com, scott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kellogg.edu (unsigned zone)

⏱️ Timing

Total: 533ms | Queries: -

📄 Records

TypeCountSample Data
A3172.67.75.72, 104.26.7.234...
AAAA32606:4700:20::681a:7ea, 2606:4700:20::ac43:4b48...
NS2brit.ns.cloudflare.com, scott.ns.cloudflare.com
MX2d226335a.ess.barracudanetworks.com (pri:, d226335b.ess.barracudanetworks.com (pri:
TXT92o2u6e8pjc470k9je4uchognf4., 3l31js58a28o9pvo8rlhb5e9de...
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1brit.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

kellogg.edu is the parent of linux1.kellogg.edu, dns1.kellogg.edu, catalog.kellogg.edu, dns2.kellogg.edu, sierra-db.kellogg.edu and a few other host names.

IP Addresses

kellogg.edu resolves to six IP numbers: 2606:4700:20::681a:6ea, 2606:4700:20::681a:7ea, 2606:4700:20::ac43:4b48, 104.26.6.234, 104.26.7.234 and 172.67.75.72.

Other host names, for instance www.challengerpsh.prisms.in, babychicstore.it, studybay.app, www.ritzparisboutique.com and www.studybay.app share IP numbers with kellogg.edu.

Name Servers

Two name servers brit.ns.cloudflare.com and scott.ns.cloudflare.com are delegated to kellogg.edu.

kellogg.edu uses the same name server configuration as other domains, such as bttl.me, jpp.fr, s(0x616e616c)hayat.net, cyberskills.mu and interlog.solutions.

kellogg.edu at least partially shares name servers with other domains such as actemracare.com, samscafe.com, bmw-net.jp, universidadedointercambio.com and netchexonline.net.

these name servers are commonly used with the name servers tricia.ns.cloudflare.com.

Host names with six IP numbers: Host name brit.ns.cloudflare.com points to 2606:4700:50::adf5:3a4e, 2803:f800:50::6ca2:c04e, 2a06:98c1:50::ac40:204e, 108.162.192.78, 172.64.32.78 and 173.245.58.78; host name scott.ns.cloudflare.com points to 2606:4700:58::adf5:3be6, 2803:f800:50::6ca2:c1e6, 2a06:98c1:50::ac40:21e6, 108.162.193.230, 172.64.33.230 and 173.245.59.230.

Mail Servers

Two mail servers handle kellogg.edu: d226335a.ess.barracudanetworks.com and d226335b.ess.barracudanetworks.com.

Host names with three IP numbers

d226335a.ess.barracudanetworks.com points to: 209.222.82.252, 209.222.82.253 and 209.222.82.255

d226335b.ess.barracudanetworks.com points to: 209.222.82.252, 209.222.82.253 and 209.222.82.255

Note that d226335a.ess.barracudanetworks.com and d226335b.ess.barracudanetworks.com both point to the same three IPs: 209.222.82.252, 209.222.82.253 and 209.222.82.255

Names pointing to 209.222.82.252: d226335a.ess.barracudanetworks.com and d226335b.ess.barracudanetworks.com

Names pointing to 209.222.82.253: d226335a.ess.barracudanetworks.com and d226335b.ess.barracudanetworks.com

Names pointing to 209.222.82.255: d226335a.ess.barracudanetworks.com and d226335b.ess.barracudanetworks.com