🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`preknowledge.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:268a:fa85:7cb7:6dc0^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:cbdd:7e1e:6ae2:dc26^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.164.248.245^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-248-245.compute-1.amazonaws.com`
		A	54.221.100.69^{🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-221-100-69.compute-1.amazonaws.com`
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:4cc0:5acf:aad1:572a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:972d:ba8c:15bd:1fc4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:df9d:da8:3792:e86e^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.89.225.208^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-89-225-208.compute-1.amazonaws.com`
		A	13.221.70.139^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-221-70-139.compute-1.amazonaws.com`
		A	52.90.122.106^{🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-90-122-106.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:bf98:4592:dea7:ef46^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:f79b:9c9e:3d43:c4a6^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:44ba:1b15:cef8:e750^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	18.212.113.20^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
			PTR	`ec2-18-212-113-20.compute-1.amazonaws.com`
		A	54.82.105.15^{🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-82-105-15.compute-1.amazonaws.com`
		A	54.209.221.205^{🇺🇸 Amazon54.208.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-209-221-205.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-10-09 #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=1791600829

Same first word

preknowledge.shop

preknowledge.com

Similar names

repknowledge.com

knowledgeerp.com

Previous names

Next names

DNS History

21 records (7 active, 14 former)

●NSns1.namebrightdns.com2015-10-13 → 2026-10-10 · 2 obs

● 2015-10-13 08:59:54
● 2026-10-10 03:17:44

○NSns2.namebrightdns.com2015-10-13 → 2017-05-22 · 4 obs

● 2015-10-13 08:59:54
● 2017-05-22 07:13:50
○ 2026-09-16 14:44:54
○ 2026-10-10 03:17:44

●NSnsg1.namebrightdns.com2026-09-16 → 2026-10-10 · 3 obs

○ 2017-05-22 07:13:50
● 2026-09-16 14:44:54
● 2026-10-10 03:17:44

●NSnsg2.namebrightdns.com2026-09-16 → 2026-10-10 · 3 obs

○ 2017-05-22 07:13:50
● 2026-09-16 14:44:54
● 2026-10-10 03:17:44

○A107.21.42.1422016-03-31 → 2016-03-31 · 4 obs

○ 2015-12-15 23:30:50
● 2016-03-31 18:14:32
○ 2016-09-20 03:13:16
○ 2026-10-10 03:17:44

○A107.23.160.2182015-12-15 → 2015-12-15 · 4 obs

○ 2015-10-13 08:59:54
● 2015-12-15 23:30:50
○ 2016-03-31 18:14:32
○ 2026-10-10 03:17:44

○A107.23.198.2402016-09-20 → 2016-09-20 · 4 obs

○ 2016-03-31 18:14:32
● 2016-09-20 03:13:16
○ 2017-05-22 07:13:50
○ 2026-10-10 03:17:44

●A13.223.25.842026-09-16 → 2026-10-10 · 3 obs

○ 2017-05-22 07:13:50
● 2026-09-16 14:44:54
● 2026-10-10 03:17:44

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-09-16 → 2026-10-10 · 3 obs

○ 2017-05-22 07:13:50
● 2026-09-16 14:44:54
● 2026-10-10 03:17:44

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-09-16 → 2026-10-10 · 3 obs

○ 2017-05-22 07:13:50
● 2026-09-16 14:44:54
● 2026-10-10 03:17:44

○A52.206.43.2342016-09-20 → 2016-09-20 · 4 obs

○ 2016-03-31 18:14:32
● 2016-09-20 03:13:16
○ 2017-05-22 07:13:50
○ 2026-10-10 03:17:44

○A52.4.72.1372016-09-20 → 2016-09-20 · 4 obs

○ 2016-03-31 18:14:32
● 2016-09-20 03:13:16
○ 2017-05-22 07:13:50
○ 2026-10-10 03:17:44

○A54.174.149.302016-03-31 → 2016-03-31 · 4 obs

○ 2015-12-15 23:30:50
● 2016-03-31 18:14:32
○ 2016-09-20 03:13:16
○ 2026-10-10 03:17:44

○A54.174.31.2542015-10-13 → 2015-10-13 · 3 obs

● 2015-10-13 08:59:54
○ 2015-12-15 23:30:50
○ 2026-10-10 03:17:44

○A54.208.74.2152015-10-13 → 2015-10-13 · 3 obs

● 2015-10-13 08:59:54
○ 2015-12-15 23:30:50
○ 2026-10-10 03:17:44

○A54.209.90.812015-12-15 → 2015-12-15 · 4 obs

○ 2015-10-13 08:59:54
● 2015-12-15 23:30:50
○ 2016-03-31 18:14:32
○ 2026-10-10 03:17:44

○A54.210.33.1902016-09-20 → 2016-09-20 · 4 obs

○ 2016-03-31 18:14:32
● 2016-09-20 03:13:16
○ 2017-05-22 07:13:50
○ 2026-10-10 03:17:44

○A54.236.123.2242016-09-20 → 2016-09-20 · 4 obs

○ 2016-03-31 18:14:32
● 2016-09-20 03:13:16
○ 2017-05-22 07:13:50
○ 2026-10-10 03:17:44

●A54.243.117.1972026-09-16 → 2026-10-10 · 3 obs

○ 2017-05-22 07:13:50
● 2026-09-16 14:44:54
● 2026-10-10 03:17:44

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-10-13 → 2016-09-20 · 4 obs

● 2015-10-13 08:59:54
● 2016-09-20 03:13:16
○ 2017-05-22 07:13:50
○ 2026-10-10 03:17:44

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-05-22 → 2017-05-22 · 4 obs

○ 2016-09-20 03:13:16
● 2017-05-22 07:13:50
○ 2026-09-16 14:44:54
○ 2026-10-10 03:17:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net...	-
preknowledge.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	12 records

✅ Authoritative Response

Server:13.221.70.139

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for preknowledge.com (unsigned zone)

⏱️ Timing

Total: 1202ms | Queries: -

📄 Records

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

IP Addresses

preknowledge.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.

binduwellness.com, mx1.flexdub.com, goldenbearproperties.com plus two other host names have IP numbers in common with preknowledge.com.

Name Servers

preknowledge.com carries NS records delegating to ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

preknowledge.com shares at least some of its name servers with other domains, including lcw88.com, theurbancreative.com, remitservices.com and two others.

These name servers are frequently seen alongside the name servers ns2.namebrightdns.com.

Hosts with 6 IP addresses each:

nsg1.namebrightdns.com resolves to 3.89.225.208, 13.221.70.139 and 52.90.122.106 among others, with 3 other IP addresses in total.

nsg2.namebrightdns.com resolves to 18.212.113.20, 54.82.105.15 and 54.209.221.205 among others, with 3 other IP addresses in total.

Host names with four IP addresses:

ns1.namebrightdns.com points to 54.164.248.245, 54.221.100.69, 2600:1f18:683a:ae1a:268a:fa85:7cb7:6dc0 and 2600:1f18:683a:ae1b:cbdd:7e1e:6ae2:dc26.

preknowledge.com - robtex.com