`k12lab.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b689^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:2baa^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.170^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.182.137^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alice.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a3c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c03c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alice.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:203c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alice.ns.cloudflare.com`
		A	108.162.192.60^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
		A	172.64.32.60^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
		A	173.245.58.60^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alice.ns.cloudflare.com`
NS	`leonard.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leonard.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c336^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leonard.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2336^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leonard.ns.cloudflare.com`
		A	108.162.195.54^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leonard.ns.cloudflare.com`
		A	162.159.44.54^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leonard.ns.cloudflare.com`
		A	172.64.35.54^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leonard.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.43.170, 172.67.182.137
		IPv6	2606:4700:3031::ac43:b689, 2606:4700:3037::6815:2baa
SOA	`alice.ns.cloudflare.com`dns@cloudflare.com serial=2400017879

`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=1774533302

WOT: SAFE (63/100)

Subdomains

www.k12lab.com

Same first word

k12lab.com

DNS History

19 records (6 active, 13 former)

●NSalice.ns.cloudflare.com2026-03-04 → 2026-03-26 · 3 obs

○ 2020-02-04 07:30:52
● 2026-03-04 07:32:46
● 2026-03-26 14:20:14

●NSleonard.ns.cloudflare.com2026-03-04 → 2026-03-26 · 3 obs

○ 2020-02-04 07:30:52
● 2026-03-04 07:32:46
● 2026-03-26 14:20:14

○NSns10.dnsmadeeasy.com2015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

○NSns11.dnsmadeeasy.com2015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

○NSns12.dnsmadeeasy.com2015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

○NSns13.dnsmadeeasy.com2015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

○NSns14.dnsmadeeasy.com2015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

○NSns15.dnsmadeeasy.com2015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

○MXskprod2.natinst.com2015-05-08 → 2016-07-16 · 4 obs

● 2015-05-08 02:01:30
● 2016-07-16 10:15:52
○ 2020-02-04 07:30:52
○ 2026-03-26 14:20:14

○MXskprod3.natinst.com2015-05-08 → 2016-07-16 · 4 obs

● 2015-05-08 02:01:30
● 2016-07-16 10:15:52
○ 2020-02-04 07:30:52
○ 2026-03-26 14:20:14

●A104.21.43.1702026-03-04 → 2026-03-26 · 4 obs

○ 2020-02-04 07:30:52
● 2026-03-04 07:32:46
○ 2026-03-13 18:24:14
● 2026-03-26 14:20:14

●A172.67.182.1372026-03-04 → 2026-03-26 · 4 obs

○ 2020-02-04 07:30:52
● 2026-03-04 07:32:46
○ 2026-03-13 18:24:14
● 2026-03-26 14:20:14

○A188.114.96.02026-03-13 → 2026-03-13 · 3 obs

○ 2026-03-04 07:32:46
● 2026-03-13 18:24:14
○ 2026-03-26 14:20:14

○A188.114.97.02026-03-13 → 2026-03-13 · 3 obs

○ 2026-03-04 07:32:46
● 2026-03-13 18:24:14
○ 2026-03-26 14:20:14

●A2606:4700:3031::ac43:b6892026-03-04 → 2026-03-26 · 4 obs

○ 2020-02-04 07:30:52
● 2026-03-04 07:32:46
○ 2026-03-13 18:24:14
● 2026-03-26 14:20:14

●A2606:4700:3037::6815:2baa2026-03-04 → 2026-03-26 · 4 obs

○ 2020-02-04 07:30:52
● 2026-03-04 07:32:46
○ 2026-03-13 18:24:14
● 2026-03-26 14:20:14

○A2a06:98c1:3120::2026-03-13 → 2026-03-13 · 3 obs

○ 2026-03-04 07:32:46
● 2026-03-13 18:24:14
○ 2026-03-26 14:20:14

○A2a06:98c1:3121::2026-03-13 → 2026-03-13 · 3 obs

○ 2026-03-04 07:32:46
● 2026-03-13 18:24:14
○ 2026-03-26 14:20:14

○A54.81.208.1492015-05-08 → 2020-02-04 · 4 obs

● 2015-05-08 02:01:30
● 2020-02-04 07:30:52
○ 2026-03-04 07:32:46
○ 2026-03-26 14:20:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net...	-
k12lab.com	alice.ns.cloudflare.com, leonard.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.60

NS records: alice.ns.cloudflare.com, leonard.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for k12lab.com (unsigned zone)

⏱️ Timing

Total: 337ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.182.137, 104.21.43.170`
AAAA	2	`2606:4700:3037::6815:2baa, 2606:4700:3031::ac43:b689`
NS	2	`alice.ns.cloudflare.com, leonard.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alice.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

k12lab.com is the parent of www.k12lab.com.

IP Addresses

Four IP numbers are pointed to by k12lab.com: 2606:4700:3031::ac43:b689, 2606:4700:3037::6815:2baa, 104.21.43.170 and 172.67.182.137.

other host names including archonte.org, spacefemfm.at, op9b.plushosting8.com, easyregistry.de and pxgm.com.cn share IP numbers with k12lab.com.

Name Servers

k12lab.com is delegated to two name servers alice.ns.cloudflare.com and leonard.ns.cloudflare.com.

k12lab.com shares the same name server setup as other domains, for instance interactiv.com, digilent.com.cn, beecube.com, mccdaq.ch and dasylab.com.

k12lab.com at least partially shares name servers with other domains, for instance senri-f.or.jp, shyfanyi.com, docimribru.pro, pk7ron2.com and progame.ro.

These name servers are commonly used with josh.ns.cloudflare.com, carol.ns.cloudflare.com and susan.ns.cloudflare.com.

Host names with six IP numbers:

Host name alice.ns.cloudflare.com points to: 2606:4700:50::adf5:3a3c, 2803:f800:50::6ca2:c03c, 2a06:98c1:50::ac40:203c, 108.162.192.60, 172.64.32.60 and 173.245.58.60.

Host name leonard.ns.cloudflare.com points to: 2606:4700:58::a29f:2c36, 2803:f800:50::6ca2:c336, 2a06:98c1:50::ac40:2336, 108.162.195.54, 162.159.44.54 and 172.64.35.54.

k12lab.com - robtex.com

k12lab.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`k12lab.com`

`com`