`duhocedu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:1fef^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:b4cc^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.239^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.204^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`nena.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nena.ns.cloudflare.com`
		A	108.162.194.161^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	162.159.38.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	172.64.34.161^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.31.239, 172.67.180.204
		IPv6	2606:4700:3030::6815:1fef, 2606:4700:3032::ac43:b4cc
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2399740976

`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=1774458657

⚠️ On DNS blocklist: tif

Same first word

duhocedu.com

DNS History

13 records (6 active, 7 former)

○NSa.share-dns.com2026-02-15 → 2026-03-21 · 5 obs

○ 2017-08-26 07:56:56
● 2026-02-15 10:47:12
● 2026-03-21 05:58:30
○ 2026-03-24 02:17:32
○ 2026-03-25 17:34:42

○NSb.share-dns.net2026-02-15 → 2026-03-21 · 5 obs

○ 2017-08-26 07:56:56
● 2026-02-15 10:47:12
● 2026-03-21 05:58:30
○ 2026-03-24 02:17:32
○ 2026-03-25 17:34:42

●NSharlan.ns.cloudflare.com2026-03-24 → 2026-03-25 · 3 obs

○ 2026-03-21 05:58:30
● 2026-03-24 02:17:32
● 2026-03-25 17:34:42

●NSnena.ns.cloudflare.com2026-03-24 → 2026-03-25 · 3 obs

○ 2026-03-21 05:58:30
● 2026-03-24 02:17:32
● 2026-03-25 17:34:42

○NSns1.websitenambo.com2016-12-15 → 2017-08-26 · 4 obs

● 2016-12-15 12:38:00
● 2017-08-26 07:56:56
○ 2026-02-15 10:47:12
○ 2026-03-25 17:34:42

○NSns2.websitenambo.com2016-12-15 → 2017-08-26 · 4 obs

● 2016-12-15 12:38:00
● 2017-08-26 07:56:56
○ 2026-02-15 10:47:12
○ 2026-03-25 17:34:42

○MXmail.duhocedu.com2016-12-15 → 2026-02-15 · 4 obs

● 2016-12-15 12:38:00
● 2026-02-15 10:47:12
○ 2026-03-21 05:58:30
○ 2026-03-25 17:34:42

●A104.21.31.2392026-03-24 → 2026-03-25 · 3 obs

○ 2026-03-21 05:58:30
● 2026-03-24 02:17:32
● 2026-03-25 17:34:42

○A118.69.175.22016-12-15 → 2017-08-26 · 4 obs

● 2016-12-15 12:38:00
● 2017-08-26 07:56:56
○ 2026-02-15 10:47:12
○ 2026-03-25 17:34:42

●A172.67.180.2042026-03-24 → 2026-03-25 · 3 obs

○ 2026-03-21 05:58:30
● 2026-03-24 02:17:32
● 2026-03-25 17:34:42

●A2606:4700:3030::6815:1fef2026-03-24 → 2026-03-25 · 3 obs

○ 2026-03-21 05:58:30
● 2026-03-24 02:17:32
● 2026-03-25 17:34:42

●A2606:4700:3032::ac43:b4cc2026-03-24 → 2026-03-25 · 3 obs

○ 2026-03-21 05:58:30
● 2026-03-24 02:17:32
● 2026-03-25 17:34:42

○A38.48.145.1022026-02-15 → 2026-03-21 · 5 obs

○ 2017-08-26 07:56:56
● 2026-02-15 10:47:12
● 2026-03-21 05:58:30
○ 2026-03-24 02:17:32
○ 2026-03-25 17:34:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net...	-
duhocedu.com	nena.ns.cloudflare.com, harlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.250

NS records: nena.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duhocedu.com (unsigned zone)

⏱️ Timing

Total: 75ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.31.239, 172.67.180.204`
AAAA	2	`2606:4700:3032::ac43:b4cc, 2606:4700:3030::6815:1fef`
NS	2	`harlan.ns.cloudflare.com, nena.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

duhocedu.com points to four IP numbers: 2606:4700:3030::6815:1fef, 2606:4700:3032::ac43:b4cc, 104.21.31.239 and 172.67.180.204.

Other host names including rsmljx.com, www.eamkevc.com, pinneroldstudents.co.uk, educopro.com and sitefish.com share IP numbers with duhocedu.com.

Name Servers

duhocedu.com's delegation uses two name servers, harlan.ns.cloudflare.com and nena.ns.cloudflare.com.

duhocedu.com shares the same name server setup as other domains, for example marufeed.com, worldtennistalent.com, it15anos.com, paperplanehostel.com and mountainviewgardensapartments.com.

duhocedu.com at least partially shares name servers with other domains, including frontieragturf.com, timesaver.top, thaiworker.net, onemusicnaija.com and pafijambinews.org.

these name servers are commonly used together with venkat.ns.cloudflare.com, amalia.ns.cloudflare.com and dawn.ns.cloudflare.com.

Host names with six IP numbers:

harlan.ns.cloudflare.com points to: 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250.

nena.ns.cloudflare.com points to: 2606:4700:50::a29f:26a1, 2803:f800:50::6ca2:c2a1, 2a06:98c1:50::ac40:22a1, 108.162.194.161, 162.159.38.161 and 172.64.34.161.

duhocedu.com - robtex.com

duhocedu.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`duhocedu.com`

`com`