`ujfs.edu.mx`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:8303^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:9bb^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.9.187^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.131.3^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cullen.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c5b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cullen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c35b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cullen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:235b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cullen.ns.cloudflare.com`
		A	108.162.195.91^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cullen.ns.cloudflare.com`
		A	162.159.44.91^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cullen.ns.cloudflare.com`
		A	172.64.35.91^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cullen.ns.cloudflare.com`
NS	`opal.ns.cloudflare.com`
		A	2606:4700:50::a29f:2664^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`opal.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c264^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`opal.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2264^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`opal.ns.cloudflare.com`
		A	108.162.194.100^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`opal.ns.cloudflare.com`
		A	162.159.38.100^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`opal.ns.cloudflare.com`
		A	172.64.34.100^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`opal.ns.cloudflare.com`
MX	`ujfs-edu-mx.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01602.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm6pr05cu00404.inbound.protection.outlook.com`
		A	2a01:111:f403:f903::^{🇺🇸 Microsoft2a01:111:f000::/36}
		A	2a01:111:f403:f913::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.9.20^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00604.inbound.protection.outlook.com`
		A	52.101.9.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.10.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.42.16^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00300.inbound.protection.outlook.com`
TXT	`MS=ms75173994`
TXT	`google-site-verification=5s9IPm7Jjjq-bCqhPsKBjbaFt8W9kmc6HkLeuCyDAq0`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.9.187, 172.67.131.3
		IPv6 hints	2606:4700:3035::ac43:8303, 2606:4700:3036::6815:9bb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=116, name=cloudflare-ech.com
SOA	`cullen.ns.cloudflare.com`dns@cloudflare.com serial=2407331054

`edu.mx`

	DNSSEC	⚠️ Not signed
	NS	`m.mx-ns.mx` ⭐ ⚠️ Not in parent delegation
	NS	`c.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`e.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`i.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`o.mx-ns.mx` ⚠️ Not in parent delegation
	NS	`x.mx-ns.mx` ⚠️ Not in parent delegation
	TXT	`v=spf1 -all`
	SOA	`m.mx-ns.mx`hostmaster@nic.mx serial=1784226489

WOT: SAFE (58/100)

Same first word

ujfs.edu.mx

ujfs.com

ujfs.cn

Similar names

usjf.com

sjfu.com

sjuf.org

ufsj.de

jufs.co.uk

fsju.org

jfus.com

fsju.info

jusf.gr.jp

jufs.se

jsuf.duckdns.org

sfju.com

fujs.de

sujf.com

jufs.s3.amazonaws.com

fsju.fr

sfuj.com

jsuf.de

sufj.com

sjuf.com

ujsf.fr

jsfu.com

usjf.info

usfj.mil

jufs.ca

jusf.com

fusj.de

fusj.com

jfus.net

jfsu.com

jusf.de

jusf.net

fujs.at

usfj.com

ufsj.edu.br

usjf.net

sjfu.fr

ujsf.com

sjuf.se

jusf.cn

jfsu.org

fjsu.com

fujs.com

DNS History

9 records (7 active, 2 former)

●NScullen.ns.cloudflare.com2026-05-12 → 2026-07-16 · 2 obs

● 2026-05-12 14:56:04
● 2026-07-16 18:44:02

●NSopal.ns.cloudflare.com2026-05-12 → 2026-07-16 · 2 obs

● 2026-05-12 14:56:04
● 2026-07-16 18:44:02

●MXujfs-edu-mx.mail.protection.outlook.com2026-05-12 → 2026-07-16 · 2 obs

● 2026-05-12 14:56:04
● 2026-07-16 18:44:02

●A104.21.9.1872026-05-12 → 2026-07-16 · 2 obs

● 2026-05-12 14:56:04
● 2026-07-16 18:44:02

●A172.67.131.32026-05-12 → 2026-07-16 · 2 obs

● 2026-05-12 14:56:04
● 2026-07-16 18:44:02

○A2606:4700:3031::ac43:83032026-05-12 → 2026-06-12 · 4 obs

● 2026-05-12 14:56:04
● 2026-06-12 22:53:16
○ 2026-07-16 11:03:00
○ 2026-07-16 18:44:02

○A2606:4700:3032::6815:9bb2026-05-12 → 2026-06-12 · 4 obs

● 2026-05-12 14:56:04
● 2026-06-12 22:53:16
○ 2026-07-16 11:03:00
○ 2026-07-16 18:44:02

●A2606:4700:3035::ac43:83032026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-12 22:53:16
● 2026-07-16 11:03:00
● 2026-07-16 18:44:02

●A2606:4700:3036::6815:9bb2026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-12 22:53:16
● 2026-07-16 11:03:00
● 2026-07-16 18:44:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
mx	c.mx-ns.mx, e.mx-ns.mx, i.mx-ns.mx, m.mx-ns.mx...	-
ujfs.edu.mx	opal.ns.cloudflare.com, cullen.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.100

NS records: opal.ns.cloudflare.com, cullen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ujfs.edu.mx (unsigned zone)

⏱️ Timing

Total: 477ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.131.3, 104.21.9.187`
AAAA	2	`2606:4700:3036::6815:9bb, 2606:4700:3035::ac43:8303`
NS	2	`cullen.ns.cloudflare.com, opal.ns.cloudflare.com`
MX	1	`ujfs-edu-mx.mail.protection.outlook.com`
TXT	3	`MS=ms75173994, google-site-verification=5s9IPm7Jjjq-bCq...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cullen.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

ujfs.edu.mx has four IP addresses: 104.21.9.187, 172.67.131.3, 2606:4700:3035::ac43:8303 and 2606:4700:3036::6815:9bb.

carlsbadchurch.com, www.multiofferte.nl, www.darcyf1.com plus two other host names have IP numbers in common with ujfs.edu.mx.

Name Servers

Two name servers handle the delegation for ujfs.edu.mx: cullen.ns.cloudflare.com and opal.ns.cloudflare.com.

The name server configuration of ujfs.edu.mx is shared with other domains, for instance dataserver.com.au, abnlookup.com.au, ejfs.com.mx and two others.

ujfs.edu.mx has at least partial name server overlap with other domains, such as 180main.com, ecole-universelle.fr, maltz1.com and two others.

It is common to find these name servers paired with the name servers leia.ns.cloudflare.com, oswald.ns.cloudflare.com, treasure.ns.cloudflare.com and gerardo.ns.cloudflare.com.

Hosts with 6 IP addresses each:

cullen.ns.cloudflare.com resolves to 108.162.195.91, 162.159.44.91 and 172.64.35.91 among others, with 3 other IP addresses in total.

opal.ns.cloudflare.com resolves to 108.162.194.100, 162.159.38.100 and 172.64.34.100 among others, with 3 other IP addresses in total.

Mail Servers

ujfs.edu.mx uses one mail server — ujfs-edu-mx.mail.protection.outlook.com.

ujfs-edu-mx.mail.protection.outlook.com has 8 IP addresses: 52.101.9.20, 52.101.9.21, 52.101.10.10 plus 5 more.

ujfs.edu.mx - robtex.com

ujfs.edu.mx

edu.mx

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`ujfs.edu.mx`

`edu.mx`