`thinkjava.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:d38b^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:3d9d^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.61.157^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.211.139^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nelci.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2698^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c298^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nelci.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2298^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nelci.ns.cloudflare.com`
		A	108.162.194.152^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	162.159.38.152^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	172.64.34.152^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
NS	`zahir.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c91^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zahir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c391^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zahir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2391^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zahir.ns.cloudflare.com`
		A	108.162.195.145^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zahir.ns.cloudflare.com`
		A	162.159.44.145^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zahir.ns.cloudflare.com`
		A	172.64.35.145^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zahir.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.61.157, 172.67.211.139
		IPv6 hints	2606:4700:3032::ac43:d38b, 2606:4700:3034::6815:3d9d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=207, name=cloudflare-ech.com
SOA	`nelci.ns.cloudflare.com`dns@cloudflare.com serial=2408114104

`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=1783207766

Same first word

thinkjava.io

thinkjava.org

thinkjava.net

DNS History

14 records (6 active, 8 former)

●NSnelci.ns.cloudflare.com2026-03-28 → 2026-07-04 · 3 obs

○ 2017-06-04 08:00:14
● 2026-03-28 12:45:58
● 2026-07-04 23:32:04

○NSns1.nixsolutions.com2015-06-04 → 2017-06-04 · 4 obs

● 2015-06-04 11:21:18
● 2017-06-04 08:00:14
○ 2026-03-28 12:45:58
○ 2026-07-04 23:32:04

○NSns2.nixsolutions.com2015-06-04 → 2017-06-04 · 4 obs

● 2015-06-04 11:21:18
● 2017-06-04 08:00:14
○ 2026-03-28 12:45:58
○ 2026-07-04 23:32:04

●NSzahir.ns.cloudflare.com2026-03-28 → 2026-07-04 · 3 obs

○ 2017-06-04 08:00:14
● 2026-03-28 12:45:58
● 2026-07-04 23:32:04

○MXmail.thinkjava.net2015-06-04 → 2017-06-04 · 4 obs

● 2015-06-04 11:21:18
● 2017-06-04 08:00:14
○ 2026-03-28 12:45:58
○ 2026-07-04 23:32:04

●A104.21.61.1572026-03-28 → 2026-07-04 · 3 obs

○ 2017-06-04 08:00:14
● 2026-03-28 12:45:58
● 2026-07-04 23:32:04

○A172.64.80.12026-03-28 → 2026-07-04 · 2 obs

○ 2026-03-28 12:45:58
○ 2026-07-04 23:32:04

●A172.67.211.1392026-03-28 → 2026-07-04 · 3 obs

○ 2017-06-04 08:00:14
● 2026-03-28 12:45:58
● 2026-07-04 23:32:04

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-28 → 2026-07-04 · 2 obs

○ 2026-03-28 12:45:58
○ 2026-07-04 23:32:04

●A2606:4700:3032::ac43:d38b2026-07-04 → 2026-07-04 · 3 obs

○ 2026-06-14 23:22:26
● 2026-07-04 23:32:02
● 2026-07-04 23:32:04

●A2606:4700:3034::6815:3d9d2026-07-04 → 2026-07-04 · 3 obs

○ 2026-06-14 23:22:26
● 2026-07-04 23:32:02
● 2026-07-04 23:32:04

○A2606:4700:3036::6815:3d9d2026-03-28 → 2026-06-14 · 5 obs

○ 2017-06-04 08:00:14
● 2026-03-28 12:45:58
● 2026-06-14 23:22:26
○ 2026-07-04 23:32:02
○ 2026-07-04 23:32:04

○A2606:4700:3037::ac43:d38b2026-03-28 → 2026-06-14 · 5 obs

○ 2017-06-04 08:00:14
● 2026-03-28 12:45:58
● 2026-06-14 23:22:26
○ 2026-07-04 23:32:02
○ 2026-07-04 23:32:04

○A91.208.153.312015-06-04 → 2017-06-04 · 4 obs

● 2015-06-04 11:21:18
● 2017-06-04 08:00:14
○ 2026-03-28 12:45:58
○ 2026-07-04 23:32:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
thinkjava.net	nelci.ns.cloudflare.com, zahir.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.145

NS records: nelci.ns.cloudflare.com, zahir.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkjava.net (unsigned zone)

⏱️ Timing

Total: 595ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.211.139, 104.21.61.157`
AAAA	2	`2606:4700:3032::ac43:d38b, 2606:4700:3034::6815:3d9d`
NS	2	`nelci.ns.cloudflare.com, zahir.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nelci.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

thinkjava.net points to the four IP addresses 104.21.61.157, 172.67.211.139, 2606:4700:3032::ac43:d38b and 2606:4700:3034::6815:3d9d.

Two other host names, along with handcraftinc.com, s6.weddbook.com and mmma.click, also share IP numbers with thinkjava.net.

Name Servers

The NS records for thinkjava.net delegate to nelci.ns.cloudflare.com and zahir.ns.cloudflare.com.

thinkjava.net shares its NS records with other domains, for example txwb.cn, peppervideo.com, anonamegame.com and two others.

At least some of thinkjava.net's name servers are shared with other domains, for example jay-mart.com, bdtemplates.com, keluaransgp.club and two more.

These name servers tend to be deployed in combination with the name servers fattouche.ns.cloudflare.com and quinton.ns.cloudflare.com.

DNS names with 6 IP addresses:

nelci.ns.cloudflare.com maps to 108.162.194.152, 162.159.38.152, 172.64.34.152 and 3 additional IP addresses.

zahir.ns.cloudflare.com maps to 108.162.195.145, 162.159.44.145, 172.64.35.145 and 3 additional IP addresses.

thinkjava.net - robtex.com

thinkjava.net

net

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`thinkjava.net`

`net`