`rf-edu.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:afbe^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:282e^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.40.46^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.190^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alex.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b64^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c164^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alex.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2164^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alex.ns.cloudflare.com`
		A	108.162.193.100^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.33.100^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.59.100^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`tara.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tara.ns.cloudflare.com`
		A	108.162.192.225^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.225^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.225^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mail.rf-edu.net` ⭐
		A	194.164.197.161^{🇬🇧 IONOS-AS194.164.192.0/20 IONOS SE}
			PTR	`panel.barmaja-ts.com`
TXT	`v=spf1 a mx ip4:194.164.197.161 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.40.46, 172.67.175.190
		IPv6 hints	2606:4700:3034::ac43:afbe, 2606:4700:3036::6815:282e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=7, name=cloudflare-ech.com
SOA	`alex.ns.cloudflare.com`dns@cloudflare.com serial=2408080216

`net`

	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=1785223937

Previously MX for

rf-edu.net

Subdomains

mail.rf-edu.net

Same first word

rf-edu.net

Similar names

edu-fr.com

fr-edu.com.cn

frd-eu.com

DNS History

18 records (7 active, 11 former)

●NSalex.ns.cloudflare.com2026-04-28 → 2026-07-28 · 3 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
● 2026-07-28 07:41:28

○NSns1.aw-server3.com2026-03-08 → 2026-03-28 · 4 obs

● 2026-03-08 12:50:22
● 2026-03-28 20:30:56
○ 2026-04-13 12:15:30
○ 2026-07-28 07:41:28

○NSns1.furasserver.com2026-03-08 → 2026-03-28 · 4 obs

● 2026-03-08 12:50:22
● 2026-03-28 20:30:56
○ 2026-04-13 12:15:30
○ 2026-07-28 07:41:28

○NSns2.aw-server3.com2026-03-08 → 2026-03-28 · 4 obs

● 2026-03-08 12:50:22
● 2026-03-28 20:30:56
○ 2026-04-13 12:15:30
○ 2026-07-28 07:41:28

○NSns2.furasserver.com2026-03-08 → 2026-03-28 · 4 obs

● 2026-03-08 12:50:22
● 2026-03-28 20:30:56
○ 2026-04-13 12:15:30
○ 2026-07-28 07:41:28

○NSns45.domaincontrol.com2026-04-13 → 2026-04-13 · 4 obs

○ 2026-03-28 20:30:56
● 2026-04-13 12:15:30
○ 2026-04-28 05:13:26
○ 2026-07-28 07:41:28

○NSns46.domaincontrol.com2026-04-13 → 2026-04-13 · 4 obs

○ 2026-03-28 20:30:56
● 2026-04-13 12:15:30
○ 2026-04-28 05:13:26
○ 2026-07-28 07:41:28

●NStara.ns.cloudflare.com2026-04-28 → 2026-07-28 · 3 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
● 2026-07-28 07:41:28

●MXmail.rf-edu.net2026-04-28 → 2026-07-28 · 3 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
● 2026-07-28 07:41:28

○MXrf-edu.net2026-03-08 → 2026-03-28 · 4 obs

● 2026-03-08 12:50:22
● 2026-03-28 20:30:56
○ 2026-04-13 12:15:30
○ 2026-07-28 07:41:28

●A104.21.40.462026-04-28 → 2026-07-28 · 3 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
● 2026-07-28 07:41:28

○A118.139.179.1812026-04-13 → 2026-04-13 · 4 obs

○ 2026-03-28 20:30:56
● 2026-04-13 12:15:30
○ 2026-04-28 05:13:26
○ 2026-07-28 07:41:28

●A172.67.175.1902026-04-28 → 2026-07-28 · 3 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
● 2026-07-28 07:41:28

○A2606:4700:3030::ac43:afbe2026-04-28 → 2026-04-28 · 4 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
○ 2026-07-13 10:48:20
○ 2026-07-28 07:41:28

●A2606:4700:3034::ac43:afbe2026-07-13 → 2026-07-28 · 3 obs

○ 2026-04-28 05:13:26
● 2026-07-13 10:48:20
● 2026-07-28 07:41:28

○A2606:4700:3035::6815:282e2026-04-28 → 2026-04-28 · 4 obs

○ 2026-04-13 12:15:30
● 2026-04-28 05:13:26
○ 2026-07-13 10:48:20
○ 2026-07-28 07:41:28

●A2606:4700:3036::6815:282e2026-07-13 → 2026-07-28 · 3 obs

○ 2026-04-28 05:13:26
● 2026-07-13 10:48:20
● 2026-07-28 07:41:28

○A37.27.56.2282026-03-08 → 2026-03-28 · 4 obs

● 2026-03-08 12:50:22
● 2026-03-28 20:30:56
○ 2026-04-13 12:15:30
○ 2026-07-28 07:41:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rf-edu.net	alex.ns.cloudflare.com, tara.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.100

NS records: alex.ns.cloudflare.com, tara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rf-edu.net (unsigned zone)

⏱️ Timing

Total: 365ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.40.46, 172.67.175.190`
AAAA	2	`2606:4700:3034::ac43:afbe, 2606:4700:3036::6815:282e`
NS	2	`alex.ns.cloudflare.com, tara.ns.cloudflare.com`
MX	1	`mail.rf-edu.net (pri: 10)`
TXT	1	`v=spf1 a mx ip4:194.164.197.161 ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alex.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

The domain mail.rf-edu.net falls under the parent rf-edu.net.

IP Addresses

rf-edu.net points to the four IP addresses 104.21.40.46, 172.67.175.190, 2606:4700:3034::ac43:afbe and 2606:4700:3036::6815:282e.

design36.com, www.gadgetdoor.com, www.bakershome.com plus two other host names have IP numbers in common with rf-edu.net.

Name Servers

rf-edu.net uses two name servers for its delegation: alex.ns.cloudflare.com and tara.ns.cloudflare.com.

The name server configuration of rf-edu.net is shared with other domains, for instance vetcamp-project.eu, jeremynation.net, kemia.net and two others.

At least some of rf-edu.net's name servers are shared with other domains, for example caheo.wiki, anyway.se, jajexpress.com and two more.

These name servers tend to be used in conjunction with the name servers toby.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname alex.ns.cloudflare.com directs to 108.162.193.100, 172.64.33.100 and 173.245.59.100 along with 3 other IP addresses.

Hostname tara.ns.cloudflare.com directs to 108.162.192.225, 172.64.32.225 and 173.245.58.225 along with 3 other IP addresses.

Mail Servers

rf-edu.net uses one mail server — mail.rf-edu.net.

mail.rf-edu.net directs to just one IP number, 194.164.197.161.

rf-edu.net - robtex.com

rf-edu.net

net

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`rf-edu.net`

`net`