`csulb.edu`

DNSSEC	⚠️ Not signed
A	134.139.19.21^{🇺🇸 CALREN-DC}
		PTR	`rh9-web.csulb.edu`
NS	`nsz1.csulb.edu` ⭐
		A	2607:f380:a54:ff12::53^{🇺🇸 CALREN-DC}
		A	134.139.50.171^{🇺🇸 CALREN-DC}
			PTR	`nsz1.csulb.edu`
NS	`ns.csulb.edu`
		A	2607:f380:a54:ff04::53^{🇺🇸 CALREN-DC}
		A	134.139.19.5^{🇺🇸 CALREN-DC}
			PTR	`ns1.csulb.edu`
			PTR	`ns2.csulb.edu`
			PTR	`ns.csulb.edu`
NS	`ns1.csulb.edu` ⚠️ Not in parent delegation
		A	2607:f380:a54:ff04::53^{🇺🇸 CALREN-DC}
		A	134.139.19.5^{🇺🇸 CALREN-DC}
			PTR	`ns1.csulb.edu`
			PTR	`ns2.csulb.edu`
			PTR	`ns.csulb.edu`
NS	`ns3.csulb.edu` ⚠️ Not in parent delegation
		A	2607:f380:a54:ff04::21^{🇺🇸 CALREN-DC}
		A	134.139.19.5^{🇺🇸 CALREN-DC}
			PTR	`ns1.csulb.edu`
			PTR	`ns2.csulb.edu`
			PTR	`ns.csulb.edu`
		A	134.139.19.53^{🇺🇸 AS396465}
			PTR	`ns3.csulb.edu`
NS	`ns4.cenic.org` ⚠️ Not in parent delegation
		A	137.164.29.67^{🇺🇸 CALREN-DC}
			PTR	`ns4-1-svc.cenic.org`
			PTR	`ns4.cenic.org`
NS	`ns5.cenic.org` ⚠️ Not in parent delegation
		A	137.164.29.69^{🇺🇸 CALREN-DC}
			PTR	`ns5.cenic.org`
NS	`ns6.cenic.org` ⚠️ Not in parent delegation
		A	198.188.255.193^{🇺🇸 CALREN-DC}
			PTR	`ns6.cenic.org`
MX	`csulb-edu.mail.protection.outlook.com` ⭐
TXT	`sending_domain318521=236ac8d993106edf9f9ab2d6ef8fbe4fa41f018457dcf7f17130a1a0...`
TXT	`DcPmKt2FsDwyhRn1IjaAiV530+9ViRA/SW9jv43Zd/lVq0ECnjxHfU5SE+7/vfuukpBU+3YA2x+0e...`
TXT	`v=spf1 ip4:137.145.0.0/16 ip4:208.75.120.0/22 ip4:64.72.147.142 ip4:64.74.237...`
TXT	`MS=ms30245482`
TXT	`TzHDVhV5vRWU1vsZBn7db0v/LGZsYPuBipAiFFpi9sN5lIUWo6O1bZXgVi6l/pa27tOA4Du/vMccH...`
TXT	`google-site-verification=xFz2M3PnLk1C_k4grzSdpJEyjvgXHw5Cf32n_AD_9vM`
TXT	`docusign=2346fb75-e80d-43e9-8699-3d3029c2eeba`
TXT	`docusign=e61a12a7-5ac3-4f45-b57f-29216be06e38`
SOA	`nsz1.csulb.edu`net-engr@csulb.edu serial=21765

`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 #6182 globally
rank #215 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #21,213

Up

sites.csulb.edu

cpace.csulb.edu

mail.csulb.edu

cla.csulb.edu

calvip.csulb.edu

student.csulb.edu

ns.csulb.edu

educ.csulb.edu

cnsm.csulb.edu

identity.csulb.edu

natsci.csulb.edu

its.csulb.edu

specialevents.csulb.edu

rh9-web.csulb.edu

nsz1.csulb.edu

my.csulb.edu

housing.csulb.edu

sso.csulb.edu

ns1.csulb.edu

giveto.csulb.edu

swift.csulb.edu

ns2.csulb.edu

uces.csulb.edu

cecs.csulb.edu

www.csulb.edu

web.csulb.edu

ced.csulb.edu

chemistry.csulb.edu

beachboard.csulb.edu

ccpe.csulb.edu

beachid.csulb.edu

emergency.csulb.edu

ad.csulb.edu

new-web.csulb.edu

ns3.csulb.edu

cpie.csulb.edu

cms.csulb.edu

dhcp.csulb.edu

careers.csulb.edu

autodiscover.csulb.edu

Same first word

csulb.com

csulb.net

csulb.org

csulb.edgesuite.net

csulb.edu

Similar names

clubs.cn

scubl.com

bcsul.com.br

sclub.de

clubs.biz

clubs.net

clubs.tv

clubs.koeln

clsub.com

ucbsl.com

bclus.com

uclbs.com

clubs.us

bulcs.com

clubs.to

clubs.pro

sclub.eu

clubs.su

clubs.uz

clubs.la

clubs.es

clubs.fr

clubs.poker

lcbus.com

clubs.directory

clubs.team

clubs.(0x787878)

clubs.lt

sclub.mx

sclub.com

sclub.nl

clubs.com

ulbsc.com

sclub.tw

sclub.com.ua

clubs.se

clubs.nl

clubs.ca

clubs.com.br

clubs.amsterdam

clubs.gr

sclub.cz

sclub.biz

clubs.be

blcus.com

clubs.mx

subcl.com

clubs.at

clbus.us

clubs.run

clubs.hu

clubs.pk

sclub.co.kr

clubs.onl

clubs.it

bsulc.com

clubs.cc

clubs.ma

clubs.lu

bcsul.com

clubs.ae

sclub.cc

clubs.no

sclub.ca

uscbl.org

clubs.me

clubs.org

clubs.bet

clubs.global

sclub.com.tw

clubs.de

sclub.sk

sclub.ru

clubs.am

clubs.co.nz

sclub.se

clubs.com.mx

ucslb.com

DNS History

14 records (9 active, 5 former)

●NSns.csulb.edu2015-08-27 → 2026-02-23 · 3 obs

○ 2008-02-17 13:51:26
● 2015-08-27 20:17:24
● 2026-02-23 02:40:04

●NSns1.csulb.edu2015-08-27 → 2026-02-23 · 3 obs

○ 2008-02-17 13:51:26
● 2015-08-27 20:17:24
● 2026-02-23 02:40:04

○NSns2.cenic.org2015-08-27 → 2017-07-08 · 5 obs

○ 2008-02-17 13:51:26
● 2015-08-27 20:17:24
● 2017-07-08 09:17:06
○ 2017-08-28 02:37:02
○ 2026-02-23 02:40:04

●NSns3.csulb.edu2016-09-20 → 2026-02-23 · 3 obs

○ 2015-08-27 20:17:24
● 2016-09-20 01:22:16
● 2026-02-23 02:40:04

●NSns4.cenic.org2017-05-18 → 2026-02-23 · 3 obs

○ 2017-04-15 00:27:16
● 2017-05-18 00:32:34
● 2026-02-23 02:40:04

○NSns4.csulb.edu2017-04-15 → 2018-09-05 · 5 obs

○ 2016-09-20 01:22:16
● 2017-04-15 00:27:16
● 2018-09-05 12:48:44
○ 2026-02-15 00:54:42
○ 2026-02-23 02:40:04

●NSns5.cenic.org2026-02-15 → 2026-02-23 · 3 obs

○ 2018-09-05 12:48:44
● 2026-02-15 00:54:42
● 2026-02-23 02:40:04

●NSns6.cenic.org2026-02-15 → 2026-02-23 · 3 obs

○ 2018-09-05 12:48:44
● 2026-02-15 00:54:42
● 2026-02-23 02:40:04

●NSnsz1.csulb.edu2026-02-15 → 2026-02-23 · 3 obs

○ 2018-09-05 12:48:44
● 2026-02-15 00:54:42
● 2026-02-23 02:40:04

○MXcsulb-edu.mail.protection.office.com2018-04-25 → 2018-04-25 · 4 obs

○ 2018-02-17 05:03:50
● 2018-04-25 16:15:20
○ 2018-09-05 12:48:44
○ 2026-02-23 02:40:04

●MXcsulb-edu.mail.protection.outlook.com2015-08-27 → 2026-02-23 · 6 obs

○ 2008-02-17 13:51:26
● 2015-08-27 20:17:24
● 2018-02-17 05:03:50
○ 2018-04-25 16:15:20
● 2018-09-05 12:48:44
● 2026-02-23 02:40:04

○A134.139.1.802008-02-17 → 2008-02-17 · 3 obs

● 2008-02-17 13:51:26
○ 2015-08-27 20:17:24
○ 2026-02-23 02:40:04

●A134.139.19.212026-02-15 → 2026-02-23 · 3 obs

○ 2018-09-05 12:48:44
● 2026-02-15 00:54:42
● 2026-02-23 02:40:04

○A134.139.19.492015-08-27 → 2018-09-05 · 5 obs

○ 2008-02-17 13:51:26
● 2015-08-27 20:17:24
● 2018-09-05 12:48:44
○ 2026-02-15 00:54:42
○ 2026-02-23 02:40:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	a.edu-servers.net, b.edu-servers.net, c.edu-servers.net, d.edu-servers.net...	-
csulb.edu	ns4.cenic.org, ns5.cenic.org, ns6.cenic.org, ns3.csulb.edu...	4 records

✅ Authoritative Response

Server: 134.139.19.53

NS records: ns4.cenic.org, ns5.cenic.org, ns6.cenic.org, ns3.csulb.edu, nsz1.csulb.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csulb.edu (unsigned zone)

⏱️ Timing

Total: 348ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`134.139.19.21`
NS	7	`ns4.cenic.org, ns.csulb.edu...`
MX	1	`csulb-edu.mail.protection.outlook.com (p`
TXT	8	`DcPmKt2FsDwyhRn1IjaAiV530+9ViRA/SW9jv43Z, v=spf1 ip4:137.145.0.0/16 ip4:208.75.120...`
SOA	1	`nsz1.csulb.edu net-engr.csulb.edu`

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (ns3.csulb.edu, ns3.csulb.edu, nsz1.csulb.edu...)

AI analysis

csulb.edu is the parent of sites.csulb.edu, cpace.csulb.edu, mail.csulb.edu, cla.csulb.edu, calvip.csulb.edu and a few other host names.

csulb.edu points to IP number 134.139.19.21.

Other host names, for example rh9-web.csulb.edu and careers.csulb.edu, share IPs with csulb.edu.

csulb.edu is delegated to seven name servers: ns1.csulb.edu, ns3.csulb.edu, ns.csulb.edu, nsz1.csulb.edu, ns4.cenic.org, ns5.cenic.org and ns6.cenic.org.

csulb.edu shares name servers with other domains at least partially, for example pacificwave.net, cpace.csulb.edu, cuesta.org, nat.mcoe.org and 246.154.205.in-addr.arpa.

these name servers are often used with the following: larry.calpoly.edu, moe.calpoly.edu, ns0-1.cenic.org, dns2.kings.k12.ca.us, ns1.merced.k12.ca.us, ns2.merced.k12.ca.us, dns.kings.k12.ca.us, ns.kings.k12.ca.us, dns.tuolcoe.k12.ca.us and ns1.slocoe.org.

Host names with three IP numbers:

The host name ns3.csulb.edu points to 2607:f380:a54:ff04::21, 134.139.19.5 and 134.139.19.53.

Host names with two IP numbers:

The host name ns1.csulb.edu points to 2607:f380:a54:ff04::53 and 134.139.19.5.

The host name ns.csulb.edu points to 2607:f380:a54:ff04::53 and 134.139.19.5.

The host name nsz1.csulb.edu points to 2607:f380:a54:ff12::53 and 134.139.50.171.

Host names with one IP number:

The host name ns4.cenic.org points to 137.164.29.67.

The host name ns5.cenic.org points to 137.164.29.69.

The host name ns6.cenic.org points to 198.188.255.193.

Host names that point to 134.139.19.5: ns3.csulb.edu, ns1.csulb.edu and ns.csulb.edu.

Host names that point to 2607:f380:a54:ff04::53: ns1.csulb.edu and ns.csulb.edu.

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

csulb.edu - robtex.com

csulb.edu

edu

Up

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

AI analysis

`csulb.edu`

`edu`