practicalcomputing.biz - dns.ninja

`practicalcomputing.biz`

DNSSEC	⚠️ Not signed
NS	`ns1.shopco.com` ⭐
		A	2604:4000:0:d:216:40:47:80^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`ns1.shopco.com`
		A	216.40.47.80^{🇨🇦 TUCOWS216.40.47.0/24 -BRA-BLK1.4/NET-216-40-47-0}
			PTR	`ns1.shopco.com`
NS	`ns2.shopco.com`
		A	2604:4000:2800:d:64:99:148:14^{🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co.}
			PTR	`ns2.shopco.com`
		A	64.98.148.14^{🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co.}
			PTR	`ns2.shopco.com`
NS	`ns3.shopco.com`
		A	2604:4000:0:d:64:99:96:35^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`ns3.shopco.com`
		A	64.99.96.35^{🇨🇦 TUCOWS64.99.96.0/24 -BRA-BLK2.7.2}
			PTR	`ns3.shopco.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽⁴⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽⁵⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
SOA	`ns1.shopco.com`hostmaster@shopco@com serial=8675316

`biz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld.biz` ⭐
	NS	`b.gtld.biz`
	NS	`c.gtld.biz`
	NS	`m.gtld.biz`
	NS	`n.gtld.biz`
	NS	`w.gtld.biz`
	NS	`x.gtld.biz`
	NS	`y.gtld.biz`
	SOA	`a.gtld.biz`admin@tldns.godaddy serial=1785790527

WOT: SUSPICIOUS (61/100)
⚠️ On DNS blocklist: spam-tlds

Subdomains

kerio.practicalcomputing.biz

Same first word

practicalcomputing.com

practicalcomputing.biz

DNS History

14 records (8 active, 6 former)

●NSns1.shopco.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

○NSns1.transparent-tech.com2015-07-17 → 2017-05-31 · 4 obs

● 2015-07-17 19:03:24
● 2017-05-31 03:58:54
○ 2026-03-24 12:41:06
○ 2026-08-03 21:04:30

●NSns2.shopco.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

○NSns2.transparent-tech.com2015-07-17 → 2017-05-31 · 4 obs

● 2015-07-17 19:03:24
● 2017-05-31 03:58:54
○ 2026-03-24 12:41:06
○ 2026-08-03 21:04:30

●NSns3.shopco.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

○NSns3.transparent-tech.com2015-07-17 → 2017-05-31 · 4 obs

● 2015-07-17 19:03:24
● 2017-05-31 03:58:54
○ 2026-03-24 12:41:06
○ 2026-08-03 21:04:30

●MXalt1.aspmx.l.google.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

●MXalt2.aspmx.l.google.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

●MXalt3.aspmx.l.google.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

●MXalt4.aspmx.l.google.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

●MXaspmx.l.google.com2026-03-24 → 2026-08-03 · 3 obs

○ 2017-05-31 03:58:54
● 2026-03-24 12:41:06
● 2026-08-03 21:04:30

○MXkerio.practicalcomputing.biz2015-07-17 → 2017-05-31 · 4 obs

● 2015-07-17 19:03:24
● 2017-05-31 03:58:54
○ 2026-03-24 12:41:06
○ 2026-08-03 21:04:30

○A67.227.170.502015-07-17 → 2015-07-17 · 3 obs

● 2015-07-17 19:03:24
○ 2015-11-18 17:30:20
○ 2026-08-03 21:04:30

○A69.167.152.2232015-11-18 → 2017-05-31 · 5 obs

○ 2015-07-17 19:03:24
● 2015-11-18 17:30:20
● 2017-05-31 03:58:54
○ 2026-03-24 12:41:06
○ 2026-08-03 21:04:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
biz	a.gtld.biz, b.gtld.biz, c.gtld.biz, m.gtld.biz...	-
practicalcomputing.biz	ns3.shopco.com, ns1.shopco.com, ns2.shopco.com	-

✅ Authoritative Response

Server:64.98.148.14

NS records: ns3.shopco.com, ns1.shopco.com, ns2.shopco.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for practicalcomputing.biz (unsigned zone)

⏱️ Timing

Total: 792ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`ns1.shopco.com, ns2.shopco.com...`
MX	5	`alt4.aspmx.l.google.com (pri: 50), alt2.aspmx.l.google.com (pri: 30)...`
SOA	1	`ns1.shopco.com hostmaster@shopco.com`

Analysis

Hierarchy

practicalcomputing.biz is the parent zone for kerio.practicalcomputing.biz.

Name Servers

The authoritative name servers for practicalcomputing.biz are ns1.shopco.com, ns2.shopco.com and ns3.shopco.com — three in total.

practicalcomputing.biz partially shares its NS delegation with several other domains, including syntona.com, 7ji.com, ks0.com and two others.

ns1.shopco.com, ns2.shopco.com and ns3.shopco.com all resolve to exactly two IP numbers apiece: ns1.shopco.com → 216.40.47.80 and 2604:4000:0:d:216:40:47:80; ns2.shopco.com → 64.98.148.14 and 2604:4000:2800:d:64:99:148:14; ns3.shopco.com → 64.99.96.35 and 2604:4000:0:d:64:99:96:35.

Mail Servers

practicalcomputing.biz is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

practicalcomputing.biz shares at least some of its mail servers with other domains — for example ns500742.ns500671.ns500731.ns500731.ns500704.ns500731.ns500705.ns500688.ns500671.ns500688.ns500705.ns500671.ns500291.ns500666.ns500291.ns500131.lustychickser.com, siptize.com, alonsourcegroup.com and two more.

It is common to find these mail servers paired with mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.

Hosts with two IP numbers each:

aspmx.l.google.com directs traffic to 192.178.155.27 and 2607:f8b0:4004:c21::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.