thinkstack.help - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`thinkstack.help`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:a6c5^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::6815:530d^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.13^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.166.197^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`donna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a97^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c097^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2097^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donna.ns.cloudflare.com`
		A	108.162.192.151^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	172.64.32.151^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	173.245.58.151^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
NS	`marek.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
MX	`thinkstack-help.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c803::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr21cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:f90d::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00200.inbound.protection.outlook.com`
		A	52.101.10.8^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn1pr04cu00100.inbound.protection.outlook.com`
		A	52.101.11.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.60.173^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn3pr0501cu00105.inbound.protection.outlook.com`
		A	52.101.194.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch0pr04cu00605.inbound.protection.outlook.com`
TXT	`MS=ms58123048`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.13, 172.67.166.197
		IPv6 hints	2606:4700:3030::ac43:a6c5, 2606:4700:3031::6815:530d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com
SOA	`donna.ns.cloudflare.com`dns@cloudflare.com serial=2414139994

`help`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.nic.help`
	NS	`b.nic.help`
	NS	`c.nic.help`
	NS	`d.nic.help`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1789857871

⚠️ On DNS blocklist: spam-tlds

Same first word

Similar names

stackthink.com

stackthink.xyz

Previous names

Next names

DNS History

11 records (7 active, 4 former)

●NSdonna.ns.cloudflare.com2026-09-13 → 2026-09-19 · 2 obs

● 2026-09-13 21:22:04
● 2026-09-19 22:55:48

●NSmarek.ns.cloudflare.com2026-09-13 → 2026-09-19 · 2 obs

● 2026-09-13 21:22:04
● 2026-09-19 22:55:48

●MXthinkstack-help.mail.protection.outlook.com2026-09-13 → 2026-09-19 · 2 obs

● 2026-09-13 21:22:04
● 2026-09-19 22:55:48

●A104.21.83.132026-09-15 → 2026-09-19 · 3 obs

○ 2026-09-13 21:22:04
● 2026-09-15 22:19:34
● 2026-09-19 22:55:48

●A172.67.166.1972026-09-15 → 2026-09-19 · 3 obs

○ 2026-09-13 21:22:04
● 2026-09-15 22:19:34
● 2026-09-19 22:55:48

○A188.114.96.02026-09-13 → 2026-09-13 · 3 obs

● 2026-09-13 21:22:04
○ 2026-09-15 22:19:34
○ 2026-09-19 22:55:48

○A188.114.97.02026-09-13 → 2026-09-13 · 3 obs

● 2026-09-13 21:22:04
○ 2026-09-15 22:19:34
○ 2026-09-19 22:55:48

●A2606:4700:3030::ac43:a6c52026-09-15 → 2026-09-19 · 3 obs

○ 2026-09-13 21:22:04
● 2026-09-15 22:19:34
● 2026-09-19 22:55:48

●A2606:4700:3031::6815:530d2026-09-15 → 2026-09-19 · 3 obs

○ 2026-09-13 21:22:04
● 2026-09-15 22:19:34
● 2026-09-19 22:55:48

○A2a06:98c1:3120::2026-09-13 → 2026-09-13 · 3 obs

● 2026-09-13 21:22:04
○ 2026-09-15 22:19:34
○ 2026-09-19 22:55:48

○A2a06:98c1:3121::2026-09-13 → 2026-09-13 · 3 obs

● 2026-09-13 21:22:04
○ 2026-09-15 22:19:34
○ 2026-09-19 22:55:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
help	a.nic.help, d.nic.help, c.nic.help, b.nic.help	8 records
thinkstack.help	donna.ns.cloudflare.com, marek.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.151

NS records: donna.ns.cloudflare.com, marek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkstack.help (unsigned zone)

⏱️ Timing

Total: 936ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.83.13, 172.67.166.197`
AAAA	2	`2606:4700:3031::6815:530d, 2606:4700:3030::ac43:a6c5`
NS	2	`donna.ns.cloudflare.com, marek.ns.cloudflare.com`
MX	1	`thinkstack-help.mail.protection.outlook.`
TXT	2	`MS=ms58123048, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`donna.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.nic.help, b.nic.help, c.nic.help...)

Analysis

IP Addresses

thinkstack.help directs to four IP numbers, which are 104.21.83.13, 172.67.166.197, 2606:4700:3030::ac43:a6c5 and 2606:4700:3031::6815:530d.

Two other host names, along with sdlndlc.cn, qqbye.com and vetoagency.com, also share IP numbers with thinkstack.help.

Name Servers

DNS delegation for thinkstack.help points to two name servers: donna.ns.cloudflare.com and marek.ns.cloudflare.com.

thinkstack.help shares its NS records with other domains, for example calmnote.help, elementaltvmedia.co, mldr.help and two others.

The name servers of thinkstack.help overlap at least partially with those of other domains — among them tk-5566.com, liftspot.shop, delsurchevroletoficial.com.ar and two more.

These name servers commonly appear alongside the name servers adel.ns.cloudflare.com and pablo.ns.cloudflare.com.

DNS names with 6 IP addresses:

donna.ns.cloudflare.com has IP addresses 108.162.192.151, 172.64.32.151 and 173.245.58.151, plus 3 other.

marek.ns.cloudflare.com has IP addresses 108.162.193.202, 172.64.33.202 and 173.245.59.202, plus 3 other.

Mail Servers

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

With 8 IP addresses total, thinkstack-help.mail.protection.outlook.com resolves to 52.101.10.8, 52.101.11.17, 52.101.60.173 and 5 others.