`graingerlearningcenter.net`

DNSSEC	⚠️ Not signed
A	12.130.57.43^{🇺🇸 AS701812.128.0.0/9 12/8 upper half}
NS	`t5-dns01.grainger.com` ⭐
		A	167.115.128.75^{🇺🇸 RoadRunner167.115.128.0/24}
			PTR	`t5-dns01.grainger.com`
NS	`lf-dns01.grainger.com`
		A	167.115.8.75^{🇺🇸 RoadRunner167.115.0.0/18}
			PTR	`lf-dns01.grainger.com`
SOA	`t5-dns01.grainger.com`hostmaster@ic.grainger.com 2014-11-17 #12

`net`

	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=1774488007

Subdomains

www.graingerlearningcenter.net

Same first word

graingerlearningcenter.org

graingerlearningcenter.com

graingerlearningcenter.net

DNS History

4 records (3 active, 1 former)

●NSlf-dns01.grainger.com2015-08-24 → 2026-03-26 · 2 obs

● 2015-08-24 06:56:16
● 2026-03-26 01:24:26

○NSni-dns01.grainger.com2015-08-24 → 2018-02-06 · 4 obs

● 2015-08-24 06:56:16
● 2018-02-06 07:02:46
○ 2026-02-15 18:11:06
○ 2026-03-26 01:24:26

●NSt5-dns01.grainger.com2026-02-15 → 2026-03-26 · 3 obs

○ 2018-02-06 07:02:46
● 2026-02-15 18:11:06
● 2026-03-26 01:24:26

●A12.130.57.432015-08-24 → 2026-03-26 · 2 obs

● 2015-08-24 06:56:16
● 2026-03-26 01:24:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
graingerlearningcenter.net	lf-dns01.grainger.com, t5-dns01.grainger.com	-

✅ Authoritative Response

Server:167.115.128.75

NS records: lf-dns01.grainger.com, t5-dns01.grainger.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for graingerlearningcenter.net (unsigned zone)

⏱️ Timing

Total: 244ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`12.130.57.43`
NS	2	`t5-dns01.grainger.com, lf-dns01.grainger.com`
SOA	1	`t5-dns01.grainger.com hostmaster.ic.grai`

Analysis

Hierarchy

graingerlearningcenter.net is parent of www.graingerlearningcenter.net.

IP Addresses

graingerlearningcenter.net points to a single IP: 12.130.57.43.

Other host names, for instance www.graingerlearningcenter.net, share IP numbers with graingerlearningcenter.net.

Name Servers

graingerlearningcenter.net's delegation is to two name servers lf-dns01.grainger.com and t5-dns01.grainger.com.

graingerlearningcenter.net shares the same name server configuration as other domains, such as gcom.grainger.com, b2b.grainger.com.mx, owagrainger.com, safetycertified.com and graingerconnect.com.

graingerlearningcenter.net at least partially shares its name servers with other domains, for instance sse.grainger.com, 183.115.167.in-addr.arpa, grainger.com.mx, daytonmotors.net and imperialsupplies.com.

these name servers are commonly used with the name servers a1-91.akam.net, a14-64.akam.net, a18-65.akam.net, a3-66.akam.net, a4-67.akam.net and a5-64.akam.net.

Host names with a single IP:

lf-dns01.grainger.com resolves to 167.115.8.75.

t5-dns01.grainger.com resolves to 167.115.128.75.

graingerlearningcenter.net - robtex.com