`harvardthud.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:5ac9^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:a115^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.90.201^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.161.21^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ajay.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b38^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c138^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ajay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2138^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ajay.ns.cloudflare.com`
		A	108.162.193.56^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
		A	172.64.33.56^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
		A	173.245.59.56^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ajay.ns.cloudflare.com`
NS	`nova.ns.cloudflare.com`
		A	2606:4700:50::a29f:2681^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nova.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c281^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nova.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2281^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nova.ns.cloudflare.com`
		A	108.162.194.129^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nova.ns.cloudflare.com`
		A	162.159.38.129^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nova.ns.cloudflare.com`
		A	172.64.34.129^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nova.ns.cloudflare.com`
TXT	`google-site-verification=SKp7QD2uUVZEzDkW8ARQn-Y8oKrTb1PoJqQJeCTrZ6o`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.90.201, 172.67.161.21
		IPv6	2606:4700:3031::6815:5ac9, 2606:4700:3031::ac43:a115
SOA	`ajay.ns.cloudflare.com`dns@cloudflare.com serial=2396746822

`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=1774513307

Same first word

harvardthud.com

DNS History

18 records (6 active, 12 former)

●NSajay.ns.cloudflare.com2026-02-18 → 2026-03-26 · 3 obs

○ 2018-08-30 05:34:12
● 2026-02-18 10:28:30
● 2026-03-26 08:34:10

○NSdns1.p07.nsone.net2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○NSdns2.p07.nsone.net2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○NSdns3.p07.nsone.net2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○NSdns4.p07.nsone.net2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

●NSnova.ns.cloudflare.com2026-02-18 → 2026-03-26 · 3 obs

○ 2018-08-30 05:34:12
● 2026-02-18 10:28:30
● 2026-03-26 08:34:10

○NSns01.squarespacedns.com2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○NSns02.squarespacedns.com2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○NSns03.squarespacedns.com2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○NSns04.squarespacedns.com2018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

●A104.21.90.2012026-02-18 → 2026-03-26 · 3 obs

○ 2018-08-30 05:34:12
● 2026-02-18 10:28:30
● 2026-03-26 08:34:10

●A172.67.161.212026-02-18 → 2026-03-26 · 3 obs

○ 2018-08-30 05:34:12
● 2026-02-18 10:28:30
● 2026-03-26 08:34:10

○A198.185.159.1442018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○A198.185.159.1452018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○A198.49.23.1442018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

○A198.49.23.1452018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:34:12
○ 2026-02-18 10:28:30
○ 2026-03-26 08:34:10

●A2606:4700:3031::6815:5ac92026-02-18 → 2026-03-26 · 3 obs

○ 2018-08-30 05:34:12
● 2026-02-18 10:28:30
● 2026-03-26 08:34:10

●A2606:4700:3031::ac43:a1152026-02-18 → 2026-03-26 · 3 obs

○ 2018-08-30 05:34:12
● 2026-02-18 10:28:30
● 2026-03-26 08:34:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
harvardthud.com	ajay.ns.cloudflare.com, nova.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.56

NS records: ajay.ns.cloudflare.com, nova.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for harvardthud.com (unsigned zone)

⏱️ Timing

Total: 108ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.161.21, 104.21.90.201`
AAAA	2	`2606:4700:3031::6815:5ac9, 2606:4700:3031::ac43:a115`
NS	2	`ajay.ns.cloudflare.com, nova.ns.cloudflare.com`
TXT	1	`google-site-verification=SKp7QD2uUVZEzDk`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ajay.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

harvardthud.com maps to four IP numbers: 2606:4700:3031::6815:5ac9, 2606:4700:3031::ac43:a115, 104.21.90.201 and 172.67.161.21.

Other host names such as oklahomabathpros.com, immediatecareparamedics.com, hksuperstan.com, laancom.cn and arteriamexico.com share IPs with harvardthud.com.

Name Servers

Two name servers ajay.ns.cloudflare.com and nova.ns.cloudflare.com handle the delegation for harvardthud.com.

harvardthud.com shares the same name server setup as other domains, for example statbasket.ru, eduustkut.ru, telegvhfcn.shop, cool-waters.de and jawdrin.cn.

harvardthud.com at least partially shares name servers with other domains, for example 51taoshihui.com, xn--80aeiayeypg.xn--p1ai, avtolux.az, mudawidaummanagement64.sbs and abeontech.com.

these name servers commonly pair with rommy.ns.cloudflare.com, olivia.ns.cloudflare.com, paityn.ns.cloudflare.com and abby.ns.cloudflare.com.

Host names with six IP numbers:

ajay.ns.cloudflare.com points to 2606:4700:58::adf5:3b38, 2803:f800:50::6ca2:c138, 2a06:98c1:50::ac40:2138, 108.162.193.56, 172.64.33.56 and 173.245.59.56.

nova.ns.cloudflare.com points to 2606:4700:50::a29f:2681, 2803:f800:50::6ca2:c281, 2a06:98c1:50::ac40:2281, 108.162.194.129, 162.159.38.129 and 172.64.34.129.

harvardthud.com - robtex.com

harvardthud.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

`harvardthud.com`

`com`