mail.cssu.org - dns.ninja

`mail.cssu.org`

CNAME	`ghs.google.com`
DNSSEC	⚠️ Not signed
A	2607:f8b0:4004:c1d::79^{🇺🇸 Google2607:f8b0:4004::/48}
		PTR	`ww-in-f121.1e100.net`
A	142.251.167.121^{🇺🇸 Google142.251.167.0/24}

`cssu.org`

	DNSSEC	⚠️ Not signed
	A	52.206.191.232^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
	NS	`ns73.worldnic.com` ⭐
	NS	`ns74.worldnic.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
	MX	`aspmx2.googlemail.com`⁽³⁰⁾
	MX	`aspmx3.googlemail.com`⁽³⁰⁾
	MX	`aspmx4.googlemail.com`⁽³⁰⁾
	MX	`aspmx5.googlemail.com`⁽³⁰⁾
	TXT	`v=spf1 include:_spf.google.com ~all`
	TXT	`google-site-verification=ELII-smt1R3WyqmXfSlQTASiT9GQeti9BIkTIpqgqOw`
	TXT	`google-site-verification=kGTAf8QloZKfo7zTPeclrIQSfOFfWSnnGKDNowAp6eo`
	SOA	`NS73.WORLDNIC.COM`namehost@WORLDNIC.COM serial=117032414

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DNS History

24 records (1 active, 23 former)

○A173.194.206.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A173.194.67.1212015-11-05 → 2015-11-05 · 4 obs

○ 2015-06-25 06:06:02
● 2015-11-05 10:58:02
○ 2016-02-01 16:43:04
○ 2026-08-13 21:33:22

○A173.194.72.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2404:6800:4003:c02::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2404:6800:4008:c01::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2607:f8b0:400d:c08::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2607:f8b0:400e:c03::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2607:f8b0:400e:c04::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2800:3f0:4003:c00::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2a00:1450:400b:c02::792015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2a00:1450:400c:c05::792015-11-05 → 2015-11-05 · 4 obs

○ 2015-06-25 06:06:02
● 2015-11-05 10:58:02
○ 2016-02-01 16:43:04
○ 2026-08-13 21:33:22

○A2a00:1450:400c:c09::792016-04-28 → 2016-04-28 · 4 obs

○ 2016-02-01 16:43:04
● 2016-04-28 10:53:40
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A2a00:1450:400c:c0b::792016-02-01 → 2016-02-01 · 4 obs

○ 2015-11-05 10:58:02
● 2016-02-01 16:43:04
○ 2016-04-28 10:53:40
○ 2026-08-13 21:33:22

○A64.233.166.1212016-04-28 → 2016-04-28 · 4 obs

○ 2016-02-01 16:43:04
● 2016-04-28 10:53:40
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A64.233.184.1212016-02-01 → 2016-02-01 · 4 obs

○ 2015-11-05 10:58:02
● 2016-02-01 16:43:04
○ 2016-04-28 10:53:40
○ 2026-08-13 21:33:22

○A64.233.186.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A71.161.211.2332008-12-15 → 2008-12-15 · 3 obs

● 2008-12-15 20:29:26
○ 2015-06-25 06:06:02
○ 2026-08-13 21:33:22

○A74.125.24.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A74.125.25.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A74.125.28.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○A74.125.68.1212015-06-25 → 2015-06-25 · 4 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

○CNAMEfirstclass.cssu.org2008-12-15 → 2008-12-15 · 3 obs

● 2008-12-15 20:29:26
○ 2015-06-25 06:06:02
○ 2026-08-13 21:33:22

●CNAMEghs.google.com2015-06-25 → 2026-08-13 · 3 obs

○ 2008-12-15 20:29:26
● 2015-06-25 06:06:02
● 2026-08-13 21:33:22

○CNAMEghs.l.google.com2015-11-05 → 2016-04-28 · 5 obs

○ 2015-06-25 06:06:02
● 2015-11-05 10:58:02
● 2016-04-28 10:53:40
○ 2026-05-15 15:41:10
○ 2026-08-13 21:33:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
cssu.org	ns73.worldnic.com, ns74.worldnic.com	-

✅ Authoritative Response

Server:162.159.27.78

NS records: ns73.worldnic.com, ns74.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cssu.org (unsigned zone)

⏱️ Timing

Total: 628ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ghs.google.com`

Analysis

IP Addresses

mail.cssu.org points to the IP addresses 142.251.167.121 and 2607:f8b0:4004:c1d::79

Additional host names — rccsemail.com, chapmaster.com, quenchint.com and two others — share IP numbers with mail.cssu.org.