`sans.edu`

DNSSEC	⚠️ Not signed
A	45.60.31.34^{🇺🇸 IMPERVA45.60.31.0/24 Imperva inc}
A	45.60.103.34^{🇺🇸 IMPERVA45.60.103.0/24 ORIXCOM via EMIX}
NS	`violet.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`violet.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`violet.ns.cloudflare.com`
		A	108.162.192.237^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	172.64.32.237^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	173.245.58.237^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
NS	`yahir.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c22^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c322^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yahir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2322^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yahir.ns.cloudflare.com`
		A	108.162.195.34^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	162.159.44.34^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	172.64.35.34^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
MX	`mxa-002c1802.gslb.pphosted.com` ⭐
		A	205.220.173.71^{🇺🇸 Proofpoint205.220.173.0/24 Inc.}
			PTR	`mx0b-002c1802.pphosted.com`
MX	`mxb-002c1802.gslb.pphosted.com` ⭐
		A	205.220.173.71^{🇺🇸 Proofpoint205.220.173.0/24 Inc.}
			PTR	`mx0b-002c1802.pphosted.com`
TXT	`82c4sg3vsw4s7kptpvzn6806kjjp3wlr`
TXT	`JI6UZuSsLXHEjD7PIBR1rWcPOqRkKRV2VwWAdhXZnLfbjhmfHHOwjMPizS78hfcgbTtjG1TaPTcdV...`
TXT	`MS=ms72131568`
TXT	`canva-site-verification=yj_t2AOb7g6O61LEAYaAzw`
TXT	`globalsign-domain-verification=4C67BEFB31EB3963BE86CC2DB3922A4C`
TXT	`google-site-verification=dUSOX9p4qG75qf-UfMNmy2Z_aIw_mK-4I5FiWl5Q4co`
TXT	`openai-domain-verification=dv-ud7uHGncEHoxqrKglDjUjQwT`
TXT	`v=spf1 include:sans.edu._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._sp...`
TXT	`zapier-domain-verification-challenge=72b6728e-92b4-42ea-ab31-f8dd5d349ae6`
SOA	`violet.ns.cloudflare.com`dns@cloudflare.com serial=2409937154

`edu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.edu-servers.net` ⭐
	NS	`b.edu-servers.net`
	NS	`c.edu-servers.net`
	NS	`d.edu-servers.net`
	NS	`e.edu-servers.net`
	NS	`f.edu-servers.net`
	NS	`g.edu-servers.net`
	NS	`h.edu-servers.net`
	NS	`i.edu-servers.net`
	NS	`j.edu-servers.net`
	NS	`k.edu-servers.net`
	NS	`l.edu-servers.net`
	NS	`m.edu-servers.net`
	SOA	`a.edu-servers.net`nstld@verisign-grs.com serial=1786550994

rank #11317 globally
rank #333 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #26,051

Subdomains

www.sans.edu

isc.sans.edu

isctv.sans.edu

dev-isc.sans.edu

dev-www.sans.edu

Same first word

sans.fr

sans.city

sans.ventures

sans.support

sans.mobi

sans.network

sans.ir

sans.com.ua

sans.no

sans.com.tr

sans.org.za

sans.services

sans.world

sans.net

sans.life

sans.dk

sans.ru

sans.blue

sans.in

sans.pl

sans.be

sans.education

sans.com.br

sans.holdings

sans.delivery

sans.co.za

sans.computer

sans.com.ar

sans.website

sans.eu

sans.de

sans.org

sans.co.in

sans.cz

sans.se

sans.biz

sans.gov.sa

sans.cat

sans.name

sans.com.cn

sans.co

sans.company

sans.at

sans.am

sans.nl

sans.com

sans.edu

sans.es

sans.com.pl

sans.systems

sans.com.sa

sans.agency

sans.expert

sans.hk

sans.solutions

sans.is

sans.ch

sans.org.sa

Similar names

asns.org.rs

assn.org.in

nass.be

sasn.edu.in

nsas.com

nass.fm

ssan.ru

nass.org

snas.net

anss.pl

nass.com

nass.us

snas.ro

nass.uk.net

nass.dk

ssna.org

nass.de

snas.org.sd

sasn.org

nsas.org

nsas.jp

nass.co

sasn.jp

snas.nl

snas.com.cn

nass.net

nass.io

nass.su

assn.de

nass.jp

snas.ca

snas.it

nass.nl

anss.net

nssa.com.au

snas.cc

nsas.info

ssan.co.kr

assn.by

snas.eu

asns.it

snas.org

nass.website

asns.ro

assn.com

nssa.gov.bh

assn.in

snsa.asso.fr

nass.com.au

asns.com.mx

nssa.net

snsa.ch

snas.de

sasn.com

nssa.org.au

nssa.cc

ssan.com

asns.ru

asns.rs

nssa.org

nass.gov.ng

anss.gov.ma

nass.ch

anss.co.uk

nssa.co.uk

nass.cz

snas.sk

snsa.com

asns.net

anss.gr.jp

nass.email

anss.de

nssa.com

ssna.asn.au

nass.com.tr

snsa.ca

nass.com.cn

nass.me

anss.jp

snsa.org

nass.es

nass.com.mx

asns.org

nsas.org.uk

snsa.nl

snas.io

anss.eu

snas.dk

assn.cn

nass.ru

anss.ma

nass.cl

anss.org

nsas.biz

sasn.ru

nsas.fr

anss.ca

nssa.de

nass.biz

nass.eu

asns.co.kr

nass.at

snsa.net

asns.com

anss.co.in

ssan.de

snsa.org.sg

nssa.no

nass.cn

nssa.org.zw

ssan.org

nass.co.uk

ssna.de

ssna.dk

nssa.ws

DNS History

28 records (6 active, 22 former)

○NSdns21a.sans.org2015-08-27 → 2020-06-25 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2020-06-25 09:26:54
○ 2020-07-04 16:18:46
○ 2026-08-12 16:14:08

○NSdns21b.sans.org2015-08-27 → 2020-06-25 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2020-06-25 09:26:54
○ 2020-07-04 16:18:46
○ 2026-08-12 16:14:08

○NSdns31a.sans.org2015-08-27 → 2020-06-25 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2020-06-25 09:26:54
○ 2020-07-04 16:18:46
○ 2026-08-12 16:14:08

○NSdns31b.sans.org2015-08-27 → 2020-06-25 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2020-06-25 09:26:54
○ 2020-07-04 16:18:46
○ 2026-08-12 16:14:08

○NSns-1058.awsdns-04.org2020-07-04 → 2021-03-15 · 5 obs

○ 2020-06-25 09:26:54
● 2020-07-04 16:18:46
● 2021-03-15 19:59:10
○ 2026-02-16 12:51:42
○ 2026-08-12 16:14:08

○NSns-1611.awsdns-09.co.uk2020-07-04 → 2021-03-15 · 5 obs

○ 2020-06-25 09:26:54
● 2020-07-04 16:18:46
● 2021-03-15 19:59:10
○ 2026-02-16 12:51:42
○ 2026-08-12 16:14:08

○NSns-363.awsdns-45.com2020-07-04 → 2021-03-15 · 5 obs

○ 2020-06-25 09:26:54
● 2020-07-04 16:18:46
● 2021-03-15 19:59:10
○ 2026-02-16 12:51:42
○ 2026-08-12 16:14:08

○NSns-745.awsdns-29.net2020-07-04 → 2021-03-15 · 5 obs

○ 2020-06-25 09:26:54
● 2020-07-04 16:18:46
● 2021-03-15 19:59:10
○ 2026-02-16 12:51:42
○ 2026-08-12 16:14:08

○NSns1.dshield.org2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

○NSns1.giac.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

○NSns2.dshield.org2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

○NSns2.giac.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

●NSviolet.ns.cloudflare.com2026-02-16 → 2026-08-12 · 3 obs

○ 2021-03-15 19:59:10
● 2026-02-16 12:51:42
● 2026-08-12 16:14:08

●NSyahir.ns.cloudflare.com2026-02-16 → 2026-08-12 · 3 obs

○ 2021-03-15 19:59:10
● 2026-02-16 12:51:42
● 2026-08-12 16:14:08

○MXiceman12-ext.giac.net2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

○MXmail1.sans.org2009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

●MXmxa-002c1802.gslb.pphosted.com2026-02-16 → 2026-08-12 · 3 obs

○ 2021-03-15 19:59:10
● 2026-02-16 12:51:42
● 2026-08-12 16:14:08

●MXmxb-002c1802.gslb.pphosted.com2026-02-16 → 2026-08-12 · 3 obs

○ 2021-03-15 19:59:10
● 2026-02-16 12:51:42
● 2026-08-12 16:14:08

○MXsans-edu.mail.protection.outlook.com2016-05-17 → 2021-03-15 · 5 obs

○ 2016-05-10 15:13:08
● 2016-05-17 20:03:56
● 2021-03-15 19:59:10
○ 2026-02-16 12:51:42
○ 2026-08-12 16:14:08

○MXsmtp21a.sans.org2015-08-27 → 2016-05-10 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2016-05-10 15:13:08
○ 2016-05-17 20:03:56
○ 2026-08-12 16:14:08

○MXsmtp21b.sans.org2015-08-27 → 2016-05-10 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2016-05-10 15:13:08
○ 2016-05-17 20:03:56
○ 2026-08-12 16:14:08

○MXsmtp31a.sans.org2015-08-27 → 2016-05-10 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2016-05-10 15:13:08
○ 2016-05-17 20:03:56
○ 2026-08-12 16:14:08

○MXsmtp31b.sans.org2015-08-27 → 2016-05-10 · 5 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2016-05-10 15:13:08
○ 2016-05-17 20:03:56
○ 2026-08-12 16:14:08

○A204.51.94.2132016-02-07 → 2017-09-02 · 11 obs

○ 2015-11-11 18:07:56
● 2016-02-07 16:22:32
○ 2016-03-11 18:36:06
○ 2016-05-10 15:13:08
● 2016-05-17 20:03:56
○ 2016-05-29 23:31:58
○ 2017-04-05 17:30:32
● 2017-04-21 02:28:14
● 2017-09-02 22:18:22
○ 2019-12-26 01:52:56
○ 2026-08-12 16:14:08

●A45.60.103.342019-12-26 → 2026-08-12 · 3 obs

○ 2017-09-02 22:18:22
● 2019-12-26 01:52:56
● 2026-08-12 16:14:08

●A45.60.31.342019-12-26 → 2026-08-12 · 3 obs

○ 2017-09-02 22:18:22
● 2019-12-26 01:52:56
● 2026-08-12 16:14:08

○A66.35.45.2042009-01-27 → 2009-01-27 · 3 obs

● 2009-01-27 10:56:06
○ 2015-08-27 20:25:08
○ 2026-08-12 16:14:08

○A66.35.59.2132015-08-27 → 2017-04-05 · 11 obs

○ 2009-01-27 10:56:06
● 2015-08-27 20:25:08
● 2015-11-11 18:07:56
○ 2016-02-07 16:22:32
● 2016-03-11 18:36:06
● 2016-05-10 15:13:08
○ 2016-05-17 20:03:56
● 2016-05-29 23:31:58
● 2017-04-05 17:30:32
○ 2017-04-21 02:28:14
○ 2026-08-12 16:14:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	m.edu-servers.net, c.edu-servers.net, l.edu-servers.net, k.edu-servers.net...	-
sans.edu	violet.ns.cloudflare.com, yahir.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.237

NS records: violet.ns.cloudflare.com, yahir.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sans.edu (unsigned zone)

⏱️ Timing

Total: 605ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`45.60.31.34, 45.60.103.34`
NS	2	`violet.ns.cloudflare.com, yahir.ns.cloudflare.com`
MX	2	`mxa-002c1802.gslb.pphosted.com (pri: 10), mxb-002c1802.gslb.pphosted.com (pri: 10)`
TXT	9	`82c4sg3vsw4s7kptpvzn6806kjjp3wlr, JI6UZuSsLXHEjD7PIBR1rWcPOqRkKRV2VwWAdhXZ...`
SOA	1	`violet.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

sans.edu is the parent of www.sans.edu, isc.sans.edu, isctv.sans.edu, dev-isc.sans.edu and dev-www.sans.edu.

IP Addresses

sans.edu directs to two IP numbers, 45.60.31.34 and 45.60.103.34

sans-foundations.com, olt-apis.sans.org, www.ranges.io plus two other host names have IP numbers in common with sans.edu.

Name Servers

The NS records for sans.edu delegate to violet.ns.cloudflare.com and yahir.ns.cloudflare.com.

The name server configuration of sans.edu is shared with other domains, for instance widgetxco.org, quadbus.com.au, rachaelscott.com.au and two others.

sans.edu has at least partial name server overlap with other domains, such as hardgoals.com, 191758a.com, qrkod.eu and two others.

It is common to find these name servers paired with the name servers reese.ns.cloudflare.com.

Hosts with 6 IP addresses each:

violet.ns.cloudflare.com maps to 108.162.192.237, 172.64.32.237, 173.245.58.237 and 3 additional IP addresses.

yahir.ns.cloudflare.com maps to 108.162.195.34, 162.159.44.34, 172.64.35.34 and 3 additional IP addresses.

Mail Servers

sans.edu uses two mail servers, mxa-002c1802.gslb.pphosted.com and mxb-002c1802.gslb.pphosted.com.

The mail server setup of sans.edu matches that of other domains such as cio.org, ranges.io, sans.org and two others.

Each of mxa-002c1802.gslb.pphosted.com and mxb-002c1802.gslb.pphosted.com points to exactly one IP address: 205.220.173.71.

mxa-002c1802.gslb.pphosted.com and mxb-002c1802.gslb.pphosted.com each have 205.220.173.71 IP addresses.

sans.edu - robtex.com

sans.edu

edu

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`sans.edu`

`edu`