`thinkbooks.net`

DNSSEC	⚠️ Not signed
A	2607:f1c0:100f:f000::204^{🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`2607-f1c0-100f-f000-0000-0000-0000-0204.elastic-ssl.ui-r.com`
A	74.208.236.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
NS	`ns1054.ui-dns.com` ⭐
		A	2001:8d8:fe:53:0:d9a0:5236:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.com`
		A	217.160.82.54^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.com`
NS	`ns1054.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5136:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.biz`
		A	217.160.81.54^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.biz`
NS	`ns1054.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:54^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1054.ui-dns.de`
		A	217.160.80.54^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.de`
NS	`ns1054.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5336:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.org`
		A	217.160.83.54^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1054.ui-dns.org`
MX	`mx00.ionos.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.ionos.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	`ns1054.ui-dns.com`kundenserver@de 2017-04-11 #4

`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=1774671732

Same first word

thinkbooks.ca

thinkbooks.net

thinkbooks.com

DNS History

19 records (8 active, 11 former)

○NSns-ca.1and1-dns.biz2017-04-07 → 2017-04-07 · 4 obs

○ 2016-07-26 19:22:18
● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

○NSns-ca.1and1-dns.ca2017-04-07 → 2017-04-07 · 4 obs

○ 2016-07-26 19:22:18
● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

○NSns-ca.1and1-dns.com2017-04-07 → 2017-04-07 · 4 obs

○ 2016-07-26 19:22:18
● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

○NSns-ca.1and1-dns.org2017-04-07 → 2017-04-07 · 4 obs

○ 2016-07-26 19:22:18
● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

○NSns01.navigators.org2015-08-15 → 2016-03-29 · 4 obs

● 2015-08-15 13:20:46
● 2016-03-29 22:37:56
○ 2016-07-26 19:22:18
○ 2026-03-28 04:31:06

○NSns02.navigators.org2015-08-15 → 2016-03-29 · 4 obs

● 2015-08-15 13:20:46
● 2016-03-29 22:37:56
○ 2016-07-26 19:22:18
○ 2026-03-28 04:31:06

●NSns1054.ui-dns.biz2026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

●NSns1054.ui-dns.com2026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

●NSns1054.ui-dns.de2026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

●NSns1054.ui-dns.org2026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

○MXmx00.1and1.com2017-04-07 → 2017-04-07 · 3 obs

● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

●MXmx00.ionos.com2026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

○MXmx01.1and1.com2017-04-07 → 2017-04-07 · 3 obs

● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

●MXmx01.ionos.com2026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

○A2607:f1c0:1000:8033:39cf:2d89:8346:18052017-04-07 → 2017-04-07 · 4 obs

○ 2016-07-26 19:22:18
● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

●A2607:f1c0:100f:f000::2042026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

○A63.253.118.1692015-08-15 → 2016-03-29 · 4 obs

● 2015-08-15 13:20:46
● 2016-03-29 22:37:56
○ 2016-07-26 19:22:18
○ 2026-03-28 04:31:06

○A74.208.215.472017-04-07 → 2017-04-07 · 4 obs

○ 2016-07-26 19:22:18
● 2017-04-07 01:04:16
○ 2026-03-25 23:14:30
○ 2026-03-28 04:31:06

●A74.208.236.32026-03-25 → 2026-03-28 · 3 obs

○ 2017-04-07 01:04:16
● 2026-03-25 23:14:30
● 2026-03-28 04:31:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	k.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net...	-
thinkbooks.net	ns1054.ui-dns.de, ns1054.ui-dns.biz, ns1054.ui-dns.org, ns1054.ui-dns.com	-

✅ Authoritative Response

Server:217.160.82.54

NS records: ns1054.ui-dns.de, ns1054.ui-dns.biz, ns1054.ui-dns.org, ns1054.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkbooks.net (unsigned zone)

⏱️ Timing

Total: 486ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.208.236.3`
AAAA	1	`2607:f1c0:100f:f000::204`
NS	4	`ns1054.ui-dns.de, ns1054.ui-dns.com...`
MX	2	`mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	1	`ns1054.ui-dns.com kundenserver.de`

Analysis

IP Addresses

The entity thinkbooks.net points to two IP numbers: 2607:f1c0:100f:f000::204 and 74.208.236.3.

For instance, other host names setsite.info, taekwanjetsu.com, tantana.com, molla.info and www.cypressgardenstreasure.com share IP numbers with thinkbooks.net.

Name Servers

thinkbooks.net is delegated to four name servers: ns1054.ui-dns.biz, ns1054.ui-dns.com, ns1054.ui-dns.de and ns1054.ui-dns.org.

thinkbooks.net shares name servers with other domains at least partially, for example gastins.eu, prometheus-produktionen.de, strahlen-therapie.eu, experlearning.com and tino-electric.com.

these name servers are often used with the following: ns1068.ui-dns.de, ns1122.ui-dns.de, ns1036.ui-dns.biz, ns1050.ui-dns.com, ns1032.ui-dns.biz, ns1115.ui-dns.org, ns1098.ui-dns.com, ns1022.ui-dns.de, ns1031.ui-dns.de and ns1046.ui-dns.com.

Host names with two IP numbers:

ns1054.ui-dns.biz points to: 2001:8d8:fe:53:0:d9a0:5136:100 and 217.160.81.54

ns1054.ui-dns.com points to: 2001:8d8:fe:53:0:d9a0:5236:100 and 217.160.82.54

ns1054.ui-dns.de points to: 2607:f1c0:fe:53:185:132:32:54 and 217.160.80.54

ns1054.ui-dns.org points to: 2001:8d8:fe:53:0:d9a0:5336:100 and 217.160.83.54

Mail Servers

Two mail servers mx00.ionos.com and mx01.ionos.com handle thinkbooks.net.

thinkbooks.net shares the same mail server setup as other domains, for instance tripcanopy.com, tomansports.com, kevinglad.com, betsygiguere.com and narcissistdaily.com.

thinkbooks.net shares some mail servers with other domains, at least partially; examples include job-e.com, weare-rooms.com and annuityresourceguide.com.

Host names with one IP number:

mx00.ionos.com points to: 74.208.5.3.

mx01.ionos.com points to: 74.208.5.21.

thinkbooks.net - robtex.com

thinkbooks.net

net

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`thinkbooks.net`

`net`