🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`bigthinktech.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:1fda^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:b402^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.31.218^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.2^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lakas.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bc2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lakas.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lakas.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lakas.ns.cloudflare.com`
		A	108.162.193.194^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lakas.ns.cloudflare.com`
		A	172.64.33.194^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lakas.ns.cloudflare.com`
		A	173.245.59.194^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lakas.ns.cloudflare.com`
NS	`serenity.ns.cloudflare.com`
		A	2606:4700:50::a29f:266c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c26c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`serenity.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:226c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`serenity.ns.cloudflare.com`
		A	108.162.194.108^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	162.159.38.108^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	172.64.34.108^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
MX	`bigthinktech-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc2c::1^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma0pr01cu01101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pnzpr01cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::1^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pnypr01cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::4^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pn3pr01cu01304.inbound.protection.outlook.com`
		A	52.101.144.3^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma0pr01cu01103.inbound.protection.outlook.com`
		A	52.101.145.0^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pnzpr01cu00200.inbound.protection.outlook.com`
		A	52.101.145.2^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pnypr01cu00202.inbound.protection.outlook.com`
		A	52.101.145.76^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pn3pr01cu01304.inbound.protection.outlook.com`
TXT	`MS=ms93204940`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.31.218, 172.67.180.2
		IPv6 hints	2606:4700:3035::6815:1fda, 2606:4700:3035::ac43:b402
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=163, name=cloudflare-ech.com
SOA	`lakas.ns.cloudflare.com`dns@cloudflare.com serial=2419736183

`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=1794636396

Same first word

bigthinktech.com

Similar names

thinkbigtech.net

thinkbigtech.com.au

thinkbigtech.uk

thinkbigtech.com

thinkbigtech.co.uk

Previous names

Next names

DNS History

12 records (7 active, 5 former)

●NSlakas.ns.cloudflare.com2026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

○NSns57.domaincontrol.com2016-12-17 → 2017-09-29 · 4 obs

● 2016-12-17 07:41:48
● 2017-09-29 18:29:30
○ 2026-11-14 06:14:06
○ 2026-11-14 06:30:20

○NSns58.domaincontrol.com2016-12-17 → 2017-09-29 · 4 obs

● 2016-12-17 07:41:48
● 2017-09-29 18:29:30
○ 2026-11-14 06:14:06
○ 2026-11-14 06:30:20

●NSserenity.ns.cloudflare.com2026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

●MXbigthinktech-com.mail.protection.outlook.com2026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

○MXmailstore1.secureserver.net2016-12-17 → 2017-09-29 · 4 obs

● 2016-12-17 07:41:48
● 2017-09-29 18:29:30
○ 2026-11-14 06:14:06
○ 2026-11-14 06:30:20

○MXsmtp.secureserver.net2016-12-17 → 2017-09-29 · 4 obs

● 2016-12-17 07:41:48
● 2017-09-29 18:29:30
○ 2026-11-14 06:14:06
○ 2026-11-14 06:30:20

●A104.21.31.2182026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

●A172.67.180.22026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

○A184.168.221.552016-12-17 → 2017-09-29 · 4 obs

● 2016-12-17 07:41:48
● 2017-09-29 18:29:30
○ 2026-11-14 06:14:06
○ 2026-11-14 06:30:20

●A2606:4700:3035::6815:1fda2026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

●A2606:4700:3035::ac43:b4022026-11-14 → 2026-11-14 · 3 obs

○ 2017-09-29 18:29:30
● 2026-11-14 06:14:06
● 2026-11-14 06:30:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net...	-
bigthinktech.com	lakas.ns.cloudflare.com, serenity.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.194

NS records: lakas.ns.cloudflare.com, serenity.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 259ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.31.218, 172.67.180.2`
AAAA	2	`2606:4700:3035::ac43:b402, 2606:4700:3035::6815:1fda`
NS	2	`lakas.ns.cloudflare.com, serenity.ns.cloudflare.com`
MX	1	`bigthinktech-com.mail.protection.outlook`
TXT	2	`MS=ms93204940, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lakas.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

bigthinktech.com directs to four IP numbers, which are 104.21.31.218, 172.67.180.2, 2606:4700:3035::6815:1fda and 2606:4700:3035::ac43:b402.

Among the host names that share IP numbers with bigthinktech.com are iumyl.in, abang77daftar.com, untitledmenu.com and two others.

Name Servers

The NS records for bigthinktech.com delegate to lakas.ns.cloudflare.com and serenity.ns.cloudflare.com.

bigthinktech.com has the same name server delegation as a number of other domains, such as ztkis5y.workers.dev, cotton-paper.com, urbanmotionsphere.biz and two more.

The name servers of bigthinktech.com overlap at least partially with those of other domains — among them fahimshakil-debater.workers.dev, mycobalance.com, dragon-belgique.com and two more.

These name servers commonly co-occur with the name servers brad.ns.cloudflare.com, brit.ns.cloudflare.com, roxy.ns.cloudflare.com and deb.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

lakas.ns.cloudflare.com maps to 108.162.193.194, 172.64.33.194, 173.245.59.194 and 3 additional IP addresses.

serenity.ns.cloudflare.com maps to 108.162.194.108, 162.159.38.108, 172.64.34.108 and 3 additional IP addresses.

Mail Servers

bigthinktech.com routes its mail through a single mail server, bigthinktech-com.mail.protection.outlook.com.

bigthinktech-com.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.144.3, 52.101.145.0 and 52.101.145.2, along with 5 other.

bigthinktech.com - robtex.com