javacow.com - robtex.com

javacow.com

DNSSEC⚠️ Not signed
A2001:470:0:b5::4834:5642🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRjavacow.com
A72.52.86.66🇺🇸 HURRICANE72.52.64.0/18 Hurricane Electric 760 Mission Ct Fremont, CA
NSns1.he.net ⭐
A2001:470:100::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns1.he.net
A216.218.130.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA
PTRns1.he.net
NSns2.he.net
A2001:470:200::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns2.he.net
A216.218.131.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA
PTRns2.he.net
NSns3.he.net
A2001:470:300::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns3.he.net
A216.218.132.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA
PTRns3.he.net
NSns4.he.net ⚠️ Not in parent delegation
A2001:470:400::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns4.he.net
A216.66.1.2🇺🇸 HURRICANE216.66.0.0/19 Hurricane Electric 55 South Market St San Jose, CA
PTRns4.he.net
NSns5.he.net ⚠️ Not in parent delegation
A2001:470:500::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRns5.he.net
A216.66.80.18🇺🇸 HURRICANE216.66.80.0/20 Hurricane Electric 55 South Market St San Jose, CA
PTRns5.he.net
MXjavacow.com ⭐
A2001:470:0:b5::4834:5642🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA
PTRjavacow.com
A72.52.86.66🇺🇸 HURRICANE72.52.64.0/18 Hurricane Electric 760 Mission Ct Fremont, CA
PTRjavacow.com
SOAns1.he.nethostmaster@he.net serial=201004022

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1784345547

PTR for

66.86.52.72.in-addr.arpa
2.4.6.5.4.3.8.4.0.0.0.0.0.0.0.0.5.b.0.0.0.0.0.0.0.7.4.0.1.0.0.2.ip6.arpa

MX for

javacow.com

Same first word

javacow.com

DNS History

9 records (8 active, 1 former)

2008201020122014201620182020202220242026NSns1.he.netns2.he.netns3.he.netns4.he.netns5.he.netMXjavacow.comA2001:470:0:b5::4834:564272.52.86.6666.160.189.18
●NSns1.he.net2007-08-14 → 2026-07-18 · 2 obs
● 2007-08-14 03:39:42
● 2026-07-18 03:35:58
●NSns2.he.net2007-08-14 → 2026-07-18 · 2 obs
● 2007-08-14 03:39:42
● 2026-07-18 03:35:58
●NSns3.he.net2007-08-14 → 2026-07-18 · 2 obs
● 2007-08-14 03:39:42
● 2026-07-18 03:35:58
●NSns4.he.net2015-06-03 → 2026-07-18 · 3 obs
○ 2007-08-14 03:39:42
● 2015-06-03 13:02:34
● 2026-07-18 03:35:58
●NSns5.he.net2015-06-03 → 2026-07-18 · 3 obs
○ 2007-08-14 03:39:42
● 2015-06-03 13:02:34
● 2026-07-18 03:35:58
●MXjavacow.com2007-08-14 → 2026-07-18 · 2 obs
● 2007-08-14 03:39:42
● 2026-07-18 03:35:58
●A2001:470:0:b5::4834:56422015-06-03 → 2026-07-18 · 3 obs
○ 2007-08-14 03:39:42
● 2015-06-03 13:02:34
● 2026-07-18 03:35:58
○A66.160.189.182007-08-14 → 2007-08-14 · 3 obs
● 2007-08-14 03:39:42
○ 2015-06-03 13:02:34
○ 2026-07-18 03:35:58
●A72.52.86.662015-06-03 → 2026-07-18 · 3 obs
○ 2007-08-14 03:39:42
● 2015-06-03 13:02:34
● 2026-07-18 03:35:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...-
javacow.comns1.he.net, ns2.he.net, ns3.he.net-

✅ Authoritative Response

Server:216.218.131.2

NS records: ns1.he.net, ns2.he.net, ns3.he.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for javacow.com (unsigned zone)

⏱️ Timing

Total: 292ms | Queries: -

📄 Records

TypeCountSample Data
A172.52.86.66
AAAA12001:470:0:b5::4834:5642
NS5ns3.he.net, ns4.he.net...
MX1javacow.com (pri: 1)
SOA1ns1.he.net hostmaster.he.net

Analysis

Mail Server Role

The MX record for javacow.com points back to javacow.com — it is its own mail server.

IP Addresses

javacow.com has two IP addresses: 72.52.86.66 and 2001:470:0:b5::4834:5642

Name Servers

The authoritative name servers for javacow.com are ns1.he.net, ns2.he.net, ns3.he.net and two others.

At least some of javacow.com's name servers are shared with other domains, for example jjrnet.net, teamworld.com, oxfordinspire.co.uk and two more.

These name servers tend to be deployed in combination with the name servers ns4.he.net and ns5.he.net.

Hosts with two IP numbers each:

The A records for ns1.he.net return 216.218.130.2 and 2001:470:100::2.

The A records for ns2.he.net return 216.218.131.2 and 2001:470:200::2.

The A records for ns3.he.net return 216.218.132.2 and 2001:470:300::2.

The A records for ns4.he.net return 216.66.1.2 and 2001:470:400::2.

The A records for ns5.he.net return 216.66.80.18 and 2001:470:500::2.

Mail Servers

The MX record for javacow.com points to a single mail server: javacow.com.

javacow.com directs to two IP numbers, 72.52.86.66 and 2001:470:0:b5::4834:5642.