`rgcsmedu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:be74^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:13e7^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.19.231^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.116^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kyree.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ccf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3cf^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kyree.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23cf^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kyree.ns.cloudflare.com`
		A	108.162.195.207^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
		A	162.159.44.207^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
		A	172.64.35.207^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kyree.ns.cloudflare.com`
NS	`nicole.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nicole.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nicole.ns.cloudflare.com`
		A	108.162.192.211^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
		A	172.64.32.211^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
		A	173.245.58.211^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nicole.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.19.231, 172.67.190.116
		IPv6 hints	2606:4700:3030::ac43:be74, 2606:4700:3032::6815:13e7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=145, name=cloudflare-ech.com
SOA	`kyree.ns.cloudflare.com`dns@cloudflare.com serial=2407908523

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785426162

rank #833017 globally
rank #358338 in the tld

Previously MX for

rgcsmedu.com

Same first word

rgcsmedu.com

DNS History

19 records (6 active, 13 former)

●NSkyree.ns.cloudflare.com2026-07-25 → 2026-07-30 · 3 obs

○ 2026-06-16 18:03:42
● 2026-07-25 19:54:36
● 2026-07-30 15:47:38

●NSnicole.ns.cloudflare.com2026-07-25 → 2026-07-30 · 3 obs

○ 2026-06-16 18:03:42
● 2026-07-25 19:54:36
● 2026-07-30 15:47:38

○NSns1.dns.com2026-06-16 → 2026-06-16 · 4 obs

○ 2017-11-15 15:20:52
● 2026-06-16 18:03:42
○ 2026-07-25 19:54:36
○ 2026-07-30 15:47:38

○NSns1.hostinger.in2016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:48
○ 2017-11-15 15:20:52
○ 2026-07-30 15:47:38

○NSns1.md-in-11.webhostbox.net2017-11-15 → 2017-11-15 · 4 obs

○ 2016-12-14 18:48:48
● 2017-11-15 15:20:52
○ 2026-06-16 18:03:42
○ 2026-07-30 15:47:38

○NSns2.dns.com2026-06-16 → 2026-06-16 · 4 obs

○ 2017-11-15 15:20:52
● 2026-06-16 18:03:42
○ 2026-07-25 19:54:36
○ 2026-07-30 15:47:38

○NSns2.hostinger.in2016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:48
○ 2017-11-15 15:20:52
○ 2026-07-30 15:47:38

○NSns2.md-in-11.webhostbox.net2017-11-15 → 2017-11-15 · 4 obs

○ 2016-12-14 18:48:48
● 2017-11-15 15:20:52
○ 2026-06-16 18:03:42
○ 2026-07-30 15:47:38

○NSns3.hostinger.in2016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:48
○ 2017-11-15 15:20:52
○ 2026-07-30 15:47:38

○NSns4.hostinger.in2016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:48
○ 2017-11-15 15:20:52
○ 2026-07-30 15:47:38

○MXmx1.hostinger.in2016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:48
○ 2017-11-15 15:20:52
○ 2026-07-30 15:47:38

○MXrgcsmedu.com2017-11-15 → 2017-11-15 · 4 obs

○ 2016-12-14 18:48:48
● 2017-11-15 15:20:52
○ 2026-06-16 18:03:42
○ 2026-07-30 15:47:38

○A103.21.59.1732017-11-15 → 2017-11-15 · 4 obs

○ 2016-12-14 18:48:48
● 2017-11-15 15:20:52
○ 2026-06-16 18:03:42
○ 2026-07-30 15:47:38

●A104.21.19.2312026-07-25 → 2026-07-30 · 3 obs

○ 2026-06-16 18:03:42
● 2026-07-25 19:54:36
● 2026-07-30 15:47:38

●A172.67.190.1162026-07-25 → 2026-07-30 · 3 obs

○ 2026-06-16 18:03:42
● 2026-07-25 19:54:36
● 2026-07-30 15:47:38

○A192.186.45.122026-06-16 → 2026-06-16 · 4 obs

○ 2017-11-15 15:20:52
● 2026-06-16 18:03:42
○ 2026-07-25 19:54:36
○ 2026-07-30 15:47:38

●A2606:4700:3030::ac43:be742026-07-25 → 2026-07-30 · 3 obs

○ 2026-06-16 18:03:42
● 2026-07-25 19:54:36
● 2026-07-30 15:47:38

●A2606:4700:3032::6815:13e72026-07-25 → 2026-07-30 · 3 obs

○ 2026-06-16 18:03:42
● 2026-07-25 19:54:36
● 2026-07-30 15:47:38

○A31.170.165.1132016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:48
○ 2017-11-15 15:20:52
○ 2026-07-30 15:47:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rgcsmedu.com	nicole.ns.cloudflare.com, kyree.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.211

NS records: nicole.ns.cloudflare.com, kyree.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rgcsmedu.com (unsigned zone)

⏱️ Timing

Total: 199ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.19.231, 172.67.190.116`
AAAA	2	`2606:4700:3032::6815:13e7, 2606:4700:3030::ac43:be74`
NS	2	`kyree.ns.cloudflare.com, nicole.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kyree.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nicole.ns.cloudflare.com, nicole.ns.cloudflare.com, nicole.ns.cloudflare.com...)

Analysis

IP Addresses

rgcsmedu.com points to the four IP addresses 104.21.19.231, 172.67.190.116, 2606:4700:3030::ac43:be74 and 2606:4700:3032::6815:13e7.

omrdiagnostics.com, bellezaeimagen.com.mx, shoo-fee.co.il and two other host names share IP numbers with rgcsmedu.com.

Name Servers

DNS delegation for rgcsmedu.com points to two name servers: kyree.ns.cloudflare.com and nicole.ns.cloudflare.com.

rgcsmedu.com uses the same name servers as several other domains — among them liweichina.com, bjhyaz.com, mypw888.com and two more.

There is at least partial name server overlap between rgcsmedu.com and other domains — root54.de, bystro.org, woyaori.com and two more among them.

The name servers peyton.ns.cloudflare.com, sky.ns.cloudflare.com and harley.ns.cloudflare.com are often found in combination with these name servers.

Hostnames that resolve to 6 IP addresses:

kyree.ns.cloudflare.com has IP addresses 108.162.195.207, 162.159.44.207 and 172.64.35.207, plus 3 other.

nicole.ns.cloudflare.com has IP addresses 108.162.192.211, 172.64.32.211 and 173.245.58.211, plus 3 other.

rgcsmedu.com - robtex.com

rgcsmedu.com

com

Previously MX for

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`rgcsmedu.com`

`com`