`sco.edu`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:c43^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:d43^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4982^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.12.67^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.13.67^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.73.130^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`derek.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`derek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`derek.ns.cloudflare.com`
		A	108.162.193.154^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	172.64.33.154^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	173.245.59.154^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
NS	`jasmine.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aaa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0aa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jasmine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20aa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jasmine.ns.cloudflare.com`
		A	108.162.192.170^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
		A	172.64.32.170^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
		A	173.245.58.170^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
MX	`sco-edu.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr21cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:f901::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mn2pr04cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f90d::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00200.inbound.protection.outlook.com`
		A	52.101.9.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	52.101.41.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-byapr05cu00400.inbound.protection.outlook.com`
		A	52.101.41.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01600.inbound.protection.outlook.com`
		A	52.101.50.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00404.inbound.protection.outlook.com`
TXT	`JGpsFw21FR5RnJxJsliwqM+s5iz1ixymgI916ru91rX+66BMXMoDeU3wWFZWQCeQG(0x585878)rS0fiOLML...`
TXT	`adobe-idp-site-verification=7cee84ef9b6df2dd8c670fb68c2ae80a6e70f7c35bc197f65...`
TXT	`v=spf1 include:_spf.sco_edu._d.easydmarc.pro ~all`
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.26.12.67, 104.26.13.67, 172.67.73.130
		IPv6	2606:4700:20::681a:c43, 2606:4700:20::681a:d43, 2606:4700:20::ac43:4982
SOA	`derek.ns.cloudflare.com`dns@cloudflare.com serial=2396814175

`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=1771608165

rank #454329 globally
rank #2970 in the tld
WOT: SAFE (88/100)
📈 Tranco rank: #728,560

Subdomains

www.sco.edu

preceptor.sco.edu

apps.sco.edu

visionet.sco.edu

moodle.sco.edu

mail.sco.edu

hayescenter.sco.edu

explore.sco.edu

listserv.sco.edu

mobile.sco.edu

macula.sco.edu

tec.sco.edu

eyecenter.sco.edu

Same first word

sco.cc

sco.in

sco.kr

sco.com.co

sco.tv

sco.at

sco.pl

sco.ae

sco.cn

sco.com

sco.mil

sco.lv

sco.co

sco.adv.br

sco.nl

sco.si

sco.com.sg

sco.pt

sco.dk

sco.ru

sco.it

sco.gov.tw

sco.biz

sco.lk

sco.fr

sco.ee

sco.li

sco.org

sco.org.co

sco.re

sco.be

sco.edu

sco.is

sco.net

sco.ie

sco.ro

sco.co.cr

sco.cloudns.pro

sco.cl

sco.cz

sco.gov.pk

sco.jp

sco.com.cn

sco.ai

sco.ch

sco.gov.et

sco.az

sco.co.in

sco.us

sco.org.uk

sco.co.nz

sco.lt

sco.sk

sco.no

sco.org.ly

Similar names

ocs.spb.ru

cso.co.za

cso.legal

soc.services

osc.edu.vn

cso.mobi

ocs.ac.jp

cos.az

cos.career

soc.cat

osc.es

cos.cu

ocs.net.nz

soc.si

cos.com.sv

soc.pt

cos.mobi

cos.eu

soc.us

osc.jp

cos.com.pa

osc.govt.nz

cos.id

ocs.ie

cos.ru

ocs.com.ua

cso.od.ua

cso.gov.tr

osc.nu

cos.blog

cos.kids

osc.cz

osc.de

cos.wtf

cos.ae

ocs.biz

cso.be

cos.com.pt

cos.tm

cos.bg

osc.com.ua

soc.in

cos.movie

ocs.im

soc.nyc

osc.at

soc.be

cos.gift

ocs.org.au

soc.vn

osc.com.gr

cos.com.ro

osc.company

ocs.mk

ocs.world

cos.com.py

cos.clothing

cos.show

cos.discount

osc.hu

cso.pl

cos.com.sa

cso.gov.kw

osc.me

ocs.waw.pl

soc.org

osc.com.py

cso.gov.tt

cso.us

cos.al

ocs.at

cos.brussels

cos.careers

osc.pl

cos.do

cos.co.id

ocs.com.ph

cos.club

osc.ie

cso.hk

cos.cy

ocs.se

cos.app

cos.is

cos.capetown

cso.gov.me

cos.com.mx

cos.ly

cso.at

ocs.it

cos.berlin

DNS History

24 records (9 active, 15 former)

●NSderek.ns.cloudflare.com2019-10-04 → 2026-03-01 · 3 obs

○ 2017-07-24 12:01:58
● 2019-10-04 18:00:16
● 2026-03-01 05:58:46

●NSjasmine.ns.cloudflare.com2019-10-04 → 2026-03-01 · 3 obs

○ 2017-07-24 12:01:58
● 2019-10-04 18:00:16
● 2026-03-01 05:58:46

○NSns1.onvoy.net2015-05-31 → 2017-07-24 · 4 obs

● 2015-05-31 15:42:10
● 2017-07-24 12:01:58
○ 2019-10-04 18:00:16
○ 2026-03-01 05:58:46

○NSns2.onvoy.net2015-05-31 → 2017-07-24 · 4 obs

● 2015-05-31 15:42:10
● 2017-07-24 12:01:58
○ 2019-10-04 18:00:16
○ 2026-03-01 05:58:46

○MXmail.messaging.microsoft.com2015-05-31 → 2017-07-24 · 4 obs

● 2015-05-31 15:42:10
● 2017-07-24 12:01:58
○ 2019-10-04 18:00:16
○ 2026-03-01 05:58:46

●MXsco-edu.mail.protection.outlook.com2015-05-31 → 2026-03-01 · 2 obs

● 2015-05-31 15:42:10
● 2026-03-01 05:58:46

○A104.25.247.1002019-10-04 → 2019-10-30 · 5 obs

○ 2017-07-24 12:01:58
● 2019-10-04 18:00:16
● 2019-10-30 04:04:46
○ 2021-01-08 01:35:56
○ 2026-03-01 05:58:46

○A104.25.248.1002019-10-04 → 2019-10-30 · 5 obs

○ 2017-07-24 12:01:58
● 2019-10-04 18:00:16
● 2019-10-30 04:04:46
○ 2021-01-08 01:35:56
○ 2026-03-01 05:58:46

○A104.26.0.2142021-01-08 → 2021-01-08 · 4 obs

○ 2019-10-30 04:04:46
● 2021-01-08 01:35:56
○ 2026-02-14 16:57:06
○ 2026-03-01 05:58:46

○A104.26.1.2142021-01-08 → 2021-01-08 · 4 obs

○ 2019-10-30 04:04:46
● 2021-01-08 01:35:56
○ 2026-02-14 16:57:06
○ 2026-03-01 05:58:46

●A104.26.12.672026-02-14 → 2026-03-01 · 3 obs

○ 2021-01-08 01:35:56
● 2026-02-14 16:57:06
● 2026-03-01 05:58:46

●A104.26.13.672026-02-14 → 2026-03-01 · 3 obs

○ 2021-01-08 01:35:56
● 2026-02-14 16:57:06
● 2026-03-01 05:58:46

○A172.67.71.1082021-01-08 → 2021-01-08 · 4 obs

○ 2019-10-30 04:04:46
● 2021-01-08 01:35:56
○ 2026-02-14 16:57:06
○ 2026-03-01 05:58:46

●A172.67.73.1302026-02-14 → 2026-03-01 · 3 obs

○ 2021-01-08 01:35:56
● 2026-02-14 16:57:06
● 2026-03-01 05:58:46

○A2606:4700:20::6819:f7642019-10-04 → 2019-10-30 · 5 obs

○ 2017-07-24 12:01:58
● 2019-10-04 18:00:16
● 2019-10-30 04:04:46
○ 2021-01-08 01:35:56
○ 2026-03-01 05:58:46

○A2606:4700:20::6819:f8642019-10-04 → 2019-10-30 · 5 obs

○ 2017-07-24 12:01:58
● 2019-10-04 18:00:16
● 2019-10-30 04:04:46
○ 2021-01-08 01:35:56
○ 2026-03-01 05:58:46

○A2606:4700:20::681a:1d62021-01-08 → 2021-01-08 · 4 obs

○ 2019-10-30 04:04:46
● 2021-01-08 01:35:56
○ 2026-02-14 16:57:06
○ 2026-03-01 05:58:46

●A2606:4700:20::681a:c432026-02-14 → 2026-03-01 · 3 obs

○ 2021-01-08 01:35:56
● 2026-02-14 16:57:06
● 2026-03-01 05:58:46

●A2606:4700:20::681a:d432026-02-14 → 2026-03-01 · 3 obs

○ 2021-01-08 01:35:56
● 2026-02-14 16:57:06
● 2026-03-01 05:58:46

○A2606:4700:20::681a:d62021-01-08 → 2021-01-08 · 4 obs

○ 2019-10-30 04:04:46
● 2021-01-08 01:35:56
○ 2026-02-14 16:57:06
○ 2026-03-01 05:58:46

○A2606:4700:20::ac43:476c2021-01-08 → 2021-01-08 · 4 obs

○ 2019-10-30 04:04:46
● 2021-01-08 01:35:56
○ 2026-02-14 16:57:06
○ 2026-03-01 05:58:46

●A2606:4700:20::ac43:49822026-02-14 → 2026-03-01 · 3 obs

○ 2021-01-08 01:35:56
● 2026-02-14 16:57:06
● 2026-03-01 05:58:46

○A67.192.216.1612015-05-31 → 2016-06-09 · 4 obs

● 2015-05-31 15:42:10
● 2016-06-09 03:17:28
○ 2017-01-31 17:32:46
○ 2026-03-01 05:58:46

○A67.192.216.1632017-01-31 → 2017-07-24 · 5 obs

○ 2016-06-09 03:17:28
● 2017-01-31 17:32:46
● 2017-07-24 12:01:58
○ 2019-10-04 18:00:16
○ 2026-03-01 05:58:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	a.edu-servers.net, b.edu-servers.net, c.edu-servers.net, d.edu-servers.net...	26 records
sco.edu	jasmine.ns.cloudflare.com, derek.ns.cloudflare.com	-

✅ Authoritative Response

Server: 173.245.59.154

NS records: jasmine.ns.cloudflare.com, derek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sco.edu (unsigned zone)

⏱️ Timing

Total: 702ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.13.67, 104.26.12.67...`
AAAA	3	`2606:4700:20::681a:d43, 2606:4700:20::ac43:4982...`
NS	2	`derek.ns.cloudflare.com, jasmine.ns.cloudflare.com`
MX	1	`sco-edu.mail.protection.outlook.com (pri`
TXT	3	`JGpsFw21FR5RnJxJsliwqM+s5iz1ixymgI916ru9, adobe-idp-site-verification=7cee84ef9b6d...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`derek.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 26

Out-of-bailiwick: 26 (a.edu-servers.net, a.edu-servers.net, b.edu-servers.net...)

Analysis

Hierarchy

sco.edu is the parent of www.sco.edu, preceptor.sco.edu, apps.sco.edu, visionet.sco.edu, moodle.sco.edu and a few other host names.

IP Addresses

sco.edu resolves to six IP addresses: 2606:4700:20::681a:c43, 2606:4700:20::681a:d43, 2606:4700:20::ac43:4982, 104.26.12.67, 104.26.13.67 and 172.67.73.130.

other host names including scrumble.nl, ggr-law.com, www.revitive.de, www-711bet.com and www.bonsai.io share IP numbers with sco.edu.

Name Servers

sco.edu is delegated to two name servers derek.ns.cloudflare.com and jasmine.ns.cloudflare.com.

sco.edu shares the same name server setup as other domains, for instance gold2b.com, haecy.com, plushkin.club, mengjh.com and spasiborodnaya.ru.

sco.edu at least partially shares name servers with other domains, for instance minilock.io, veiga.in, pinturasdescar.com, sp-fun.ru and vars.am.

These name servers are commonly used alongside miles.ns.cloudflare.com and aryanna.ns.cloudflare.com.

Host names with six IP numbers:

Host name derek.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9a, 2803:f800:50::6ca2:c19a, 2a06:98c1:50::ac40:219a, 108.162.193.154, 172.64.33.154 and 173.245.59.154.

Host name jasmine.ns.cloudflare.com points to: 2606:4700:50::adf5:3aaa, 2803:f800:50::6ca2:c0aa, 2a06:98c1:50::ac40:20aa, 108.162.192.170, 172.64.32.170 and 173.245.58.170.

Mail Servers

sco.edu is handled by a single mail server, sco-edu.mail.protection.outlook.com.

Host sco-edu.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::4, 2a01:111:f403:c902::6, 2a01:111:f403:f901::, 2a01:111:f403:f90d::, 52.101.9.26, 52.101.41.0, 52.101.41.24 and 52.101.50.4.

sco.edu - robtex.com

sco.edu

edu

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`sco.edu`

`edu`