🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`thinkstack.com.au`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`thinkstack-com-au.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc31::1^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-sy8pr01cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc31::2^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-sy5pr01cu00902.inbound.protection.outlook.com`
		A	2a01:111:f403:cc31::3^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-sy2pr01cu00503.inbound.protection.outlook.com`
		A	2a01:111:f403:cc33::1^{🇦🇺 Microsoft2a01:111:f000::/36}
			PTR	`mail-meupr01cu00301.inbound.protection.outlook.com`
		A	52.101.149.0^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sy2pr01cu00300.inbound.protection.outlook.com`
		A	52.101.149.2^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sy5pr01cu00902.inbound.protection.outlook.com`
		A	52.101.149.9^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sy2pr01cu00501.inbound.protection.outlook.com`
		A	52.101.151.0^{🇦🇺 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-meupr01cu00200.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`google-site-verification=DQq2ZkUFdUGFq_-FsusKly2w6GPY1rWTF7mQSKtIV88`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1736401130

`com.au`

	DNSSEC	⚠️ Not signed
	NS	`q.au` ⭐ ⚠️ Not in parent delegation
	NS	`a.au` ⚠️ Not in parent delegation
	NS	`r.au` ⚠️ Not in parent delegation
	NS	`s.au` ⚠️ Not in parent delegation
	NS	`t.au` ⚠️ Not in parent delegation
	SOA	`q.au`hostmaster@donuts.email serial=1790181980

WOT: SAFE (34/100)

Same first word

Similar names

stackthink.com

stackthink.xyz

Previous names

Next names

DNS History

4 records (4 active, 0 former)

●NSdns1.registrar-servers.com2026-09-16 → 2026-09-23 · 2 obs

● 2026-09-16 16:03:38
● 2026-09-23 16:50:02

●NSdns2.registrar-servers.com2026-09-16 → 2026-09-23 · 2 obs

● 2026-09-16 16:03:38
● 2026-09-23 16:50:02

●MXthinkstack-com-au.mail.protection.outlook.com2026-09-16 → 2026-09-23 · 2 obs

● 2026-09-16 16:03:38
● 2026-09-23 16:50:02

●A76.76.21.212026-09-16 → 2026-09-23 · 2 obs

● 2026-09-16 16:03:38
● 2026-09-23 16:50:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
au	r.au, t.au, a.au, q.au...	-
thinkstack.com.au	dns1.registrar-servers.com, dns2.registrar-servers.com	-

✅ Authoritative Response

Server:156.154.133.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkstack.com.au (unsigned zone)

⏱️ Timing

Total: 442ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	1	`thinkstack-com-au.mail.protection.outloo`
TXT	2	`v=spf1 include:spf.protection.outlook.co, google-site-verification=DQq2ZkUFdUGFq_-`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

Analysis

IP Addresses

thinkstack.com.au resolves to just one IP address, 76.76.21.21.

Two other host names, along with xsuah08.cn, vegize.cn and ourmesa.family, also share IP numbers with thinkstack.com.au.

Name Servers

thinkstack.com.au is served by two delegated name servers, dns1.registrar-servers.com and dns2.registrar-servers.com.

thinkstack.com.au shares its NS records with other domains, for example biztosvalasztas.app, theagelessvitalitymethod.com, betterbuildershub.app and two others.

The DNS delegation for thinkstack.com.au at least partly coincides with that of other domains, brothersinberlin.com being one example.

Each of the two host names carries two IP addresses: dns1.registrar-servers.com points to 156.154.132.200 and 2610:a1:1024::200, and dns2.registrar-servers.com points to 156.154.133.200 and 2610:a1:1025::200.

Mail Servers

The sole mail server for thinkstack.com.au is thinkstack-com-au.mail.protection.outlook.com.

With 8 IP addresses total, thinkstack-com-au.mail.protection.outlook.com resolves to 52.101.149.0, 52.101.149.2, 52.101.149.9 and 5 others.

thinkstack.com.au - robtex.com