knowintro.com - dns.ninja

`knowintro.com`

DNSSEC	⚠️ Not signed
A	2600:1f18:4ae:c605:dd5d:b838:5816:d7fb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:4ae:c606:78d4:4260:db4e:aeee^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	13.223.25.84^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
A	54.243.117.197^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
NS	`ns1.namebrightdns.com` ⭐
		A	2600:1f18:683a:ae1a:6900:d1bd:7672:d0ca^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:7bc2:638d:8ca6:fcc4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:d57d:390a:64b4:d4f1^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	52.203.211.134^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
			PTR	`ec2-52-203-211-134.compute-1.amazonaws.com`
		A	52.204.81.90^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
			PTR	`ec2-52-204-81-90.compute-1.amazonaws.com`
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:4a5c:f736:fa58:d85^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:5b81:82bc:6de0:b02c^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:a80d:aa66:fb:1e18^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.88.240.25^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-88-240-25.compute-1.amazonaws.com`
		A	52.55.198.41^{🇺🇸 Amazon52.54.0.0/15 EC2 Region prefix}
			PTR	`ec2-52-55-198-41.compute-1.amazonaws.com`
		A	54.175.130.15^{🇺🇸 Amazon54.174.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-175-130-15.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:7b03:f4b:4bfa:8287^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:cc5d:cd19:dd5:828e^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:3ee4:3218:624e:fbef^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.80.109.14^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-80-109-14.compute-1.amazonaws.com`
		A	18.232.139.44^{🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-232-139-44.compute-1.amazonaws.com`
		A	98.81.3.34^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-81-3-34.compute-1.amazonaws.com`
TXT	`v=spf1 -all`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-06-28 #1

`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=1782679725

Subdomains

mail.knowintro.com

Same first word

knowintro.com

Similar names

workinton.net

notworkin.com

winkontor.de

workinton.com

DNS History

11 records (7 active, 4 former)

●NSns1.namebrightdns.com2026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

●NSnsg1.namebrightdns.com2026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

●NSnsg2.namebrightdns.com2026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

○NSpakping1.hostsevenplus.com2016-12-15 → 2017-12-09 · 4 obs

● 2016-12-15 18:00:44
● 2017-12-09 14:58:58
○ 2026-04-06 00:03:50
○ 2026-06-28 21:17:12

○NSpakping2.hostsevenplus.com2016-12-15 → 2017-12-09 · 4 obs

● 2016-12-15 18:00:44
● 2017-12-09 14:58:58
○ 2026-04-06 00:03:50
○ 2026-06-28 21:17:12

○MXmail.knowintro.com2016-12-15 → 2017-12-09 · 4 obs

● 2016-12-15 18:00:44
● 2017-12-09 14:58:58
○ 2026-04-06 00:03:50
○ 2026-06-28 21:17:12

○A103.233.195.2092016-12-15 → 2017-12-09 · 4 obs

● 2016-12-15 18:00:44
● 2017-12-09 14:58:58
○ 2026-04-06 00:03:50
○ 2026-06-28 21:17:12

●A13.223.25.842026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

●A54.243.117.1972026-04-06 → 2026-06-28 · 3 obs

○ 2017-12-09 14:58:58
● 2026-04-06 00:03:50
● 2026-06-28 21:17:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
knowintro.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	12 records

✅ Authoritative Response

Server:18.232.139.44

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowintro.com (unsigned zone)

⏱️ Timing

Total: 498ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`54.243.117.197, 13.223.25.84`
AAAA	2	`2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee`
NS	2	`nsg1.namebrightdns.com, nsg2.namebrightdns.com`
TXT	2	`afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all`
SOA	1	`ns1.namebrightdns.com dns.namebright.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

Hierarchy

knowintro.com is a parent domain of mail.knowintro.com.

IP Addresses

knowintro.com has four IP addresses: 13.223.25.84, 54.243.117.197, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb and 2600:1f18:4ae:c606:78d4:4260:db4e:aeee.

kamagracheaper.com, smtp.trinomics.com, 86060688.com.whoisbucket.com and two other host names share IP numbers with knowintro.com.

Name Servers

knowintro.com is delegated to three name servers: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

knowintro.com shares at least some of its name servers with other domains, including mail.yogaplunge.com, yoursbank.com, tobaldi.com and two others.

These name servers are frequently paired with the name servers domain-for-sale.hugedomainsdns.com, forsale.hugedomainsdns.com and ns2.namebrightdns.com.

Hostnames that resolve to 6 IP addresses:

nsg1.namebrightdns.com resolves to 3.88.240.25, 52.55.198.41, 54.175.130.15 and 3 other IP addresses.

nsg2.namebrightdns.com resolves to 3.80.109.14, 18.232.139.44, 98.81.3.34 and 3 other IP addresses.

Hostnames pointing to five IP numbers:

ns1.namebrightdns.com resolves to four IP addresses: 52.203.211.134, 52.204.81.90, 2600:1f18:683a:ae1a:6900:d1bd:7672:d0ca and two others.