`edu-bigdata.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:92fe^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:51d5^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.213^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.254^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kami.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kami.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kami.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kami.ns.cloudflare.com`
		A	108.162.192.177^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kami.ns.cloudflare.com`
		A	172.64.32.177^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kami.ns.cloudflare.com`
		A	173.245.58.177^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kami.ns.cloudflare.com`
NS	`thaddeus.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c7f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c37f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`thaddeus.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:237f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`thaddeus.ns.cloudflare.com`
		A	108.162.195.127^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
		A	162.159.44.127^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
		A	172.64.35.127^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.213, 172.67.146.254
		IPv6 hints	2606:4700:3032::ac43:92fe, 2606:4700:3036::6815:51d5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=203, name=cloudflare-ech.com
SOA	`kami.ns.cloudflare.com`dns@cloudflare.com serial=2408700431

`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=1783904132

Same first word

edu-bigdata.com

DNS History

15 records (6 active, 9 former)

○NSdns1.hichina.com2020-03-01 → 2020-03-01 · 4 obs

○ 2017-03-18 17:29:48
● 2020-03-01 12:16:28
○ 2026-05-29 03:22:00
○ 2026-07-13 01:25:26

○NSdns10.hichina.com2016-07-10 → 2017-03-18 · 5 obs

○ 2016-02-29 13:14:26
● 2016-07-10 01:13:16
● 2017-03-18 17:29:48
○ 2020-03-01 12:16:28
○ 2026-07-13 01:25:26

○NSdns17.hichina.com2015-08-01 → 2015-11-26 · 4 obs

● 2015-08-01 08:20:42
● 2015-11-26 11:38:56
○ 2016-02-29 13:14:26
○ 2026-07-13 01:25:26

○NSdns18.hichina.com2015-08-01 → 2015-11-26 · 4 obs

● 2015-08-01 08:20:42
● 2015-11-26 11:38:56
○ 2016-02-29 13:14:26
○ 2026-07-13 01:25:26

○NSdns2.hichina.com2020-03-01 → 2020-03-01 · 4 obs

○ 2017-03-18 17:29:48
● 2020-03-01 12:16:28
○ 2026-05-29 03:22:00
○ 2026-07-13 01:25:26

○NSdns9.hichina.com2016-07-10 → 2017-03-18 · 5 obs

○ 2016-02-29 13:14:26
● 2016-07-10 01:13:16
● 2017-03-18 17:29:48
○ 2020-03-01 12:16:28
○ 2026-07-13 01:25:26

●NSkami.ns.cloudflare.com2026-05-29 → 2026-07-13 · 3 obs

○ 2020-03-01 12:16:28
● 2026-05-29 03:22:00
● 2026-07-13 01:25:26

●NSthaddeus.ns.cloudflare.com2026-05-29 → 2026-07-13 · 3 obs

○ 2020-03-01 12:16:28
● 2026-05-29 03:22:00
● 2026-07-13 01:25:26

○A101.231.159.1872020-03-01 → 2020-03-01 · 3 obs

● 2020-03-01 12:16:28
○ 2026-05-29 03:22:00
○ 2026-07-13 01:25:26

●A104.21.81.2132026-05-29 → 2026-07-13 · 3 obs

○ 2020-03-01 12:16:28
● 2026-05-29 03:22:00
● 2026-07-13 01:25:26

●A172.67.146.2542026-05-29 → 2026-07-13 · 3 obs

○ 2020-03-01 12:16:28
● 2026-05-29 03:22:00
● 2026-07-13 01:25:26

●A2606:4700:3032::ac43:92fe2026-07-10 → 2026-07-13 · 3 obs

○ 2026-06-04 18:05:10
● 2026-07-10 14:12:10
● 2026-07-13 01:25:26

●A2606:4700:3036::6815:51d52026-07-10 → 2026-07-13 · 3 obs

○ 2026-06-04 18:05:10
● 2026-07-10 14:12:10
● 2026-07-13 01:25:26

○A2606:4700:3037::6815:51d52026-05-29 → 2026-06-04 · 5 obs

○ 2020-03-01 12:16:28
● 2026-05-29 03:22:00
● 2026-06-04 18:05:10
○ 2026-07-10 14:12:10
○ 2026-07-13 01:25:26

○A2606:4700:3037::ac43:92fe2026-05-29 → 2026-06-04 · 5 obs

○ 2020-03-01 12:16:28
● 2026-05-29 03:22:00
● 2026-06-04 18:05:10
○ 2026-07-10 14:12:10
○ 2026-07-13 01:25:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net...	-
edu-bigdata.com	kami.ns.cloudflare.com, thaddeus.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.127

NS records: kami.ns.cloudflare.com, thaddeus.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for edu-bigdata.com (unsigned zone)

⏱️ Timing

Total: 383ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.254, 104.21.81.213`
AAAA	2	`2606:4700:3032::ac43:92fe, 2606:4700:3036::6815:51d5`
NS	2	`kami.ns.cloudflare.com, thaddeus.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kami.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

edu-bigdata.com has four IP addresses: 104.21.81.213, 172.67.146.254, 2606:4700:3032::ac43:92fe and 2606:4700:3036::6815:51d5.

raulmen.dev, nuocao.cn, funnelmastery.com plus two other host names have IP numbers in common with edu-bigdata.com.

Name Servers

Two name servers handle the delegation for edu-bigdata.com: kami.ns.cloudflare.com and thaddeus.ns.cloudflare.com.

The name server configuration of edu-bigdata.com is shared with other domains, for instance miaowolife.com, starlighttalk.com, bishopsgate.org.uk and two others.

edu-bigdata.com partially shares its NS delegation with several other domains, including musclebuildingsupplements.com, oyagc.com, skfsz.com and two others.

These name servers are regularly seen alongside crystal.ns.cloudflare.com and evan.ns.cloudflare.com as name servers.

Hosts with 6 IP addresses each:

kami.ns.cloudflare.com resolves to 108.162.192.177, 172.64.32.177 and 173.245.58.177 among others, with 3 other IP addresses in total.

thaddeus.ns.cloudflare.com resolves to 108.162.195.127, 162.159.44.127 and 172.64.35.127 among others, with 3 other IP addresses in total.

edu-bigdata.com - robtex.com

edu-bigdata.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

`edu-bigdata.com`

`com`