py4j.org - robtex.com

py4j.org

DNSSEC⚠️ Not signed
A3.226.0.220🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix
PTRec2-3-226-0-220.compute-1.amazonaws.com
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
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
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
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c06::1b🇺🇸 Google2607:f8b0::/32
PTRdz-in-f27.1e100.net
A142.250.101.26🇺🇸 Google142.250.101.0/24
PTRdz-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.26🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f26.1e100.net
MXaspmx2.googlemail.com(10)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.27🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f27.1e100.net
MXaspmx3.googlemail.com(10)
A2607:f8b0:4023:1015::1a🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f26.1e100.net
A172.253.135.27🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f27.1e100.net
TXTv=spf1 include:sparkpostmail.com include:_spf.google.com include:spf.mailjet....
TXTgoogle-site-verification=rykFFClrihAj-FcncD_DNkMvYqaiKlBZPzoAwHX-ZR4
SOAns1.he.nethostmaster@he.net 2022-03-05 #0

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1774818991

Subdomains

www.py4j.org

Same first word

py4j.github.io
py4j.org

Similar names

j4yp.com
yj4p.com
j4yp.org
pj4y.com

DNS History

13 records (11 active, 2 former)

201820192020202120222023202420252026NSns1.he.netns2.he.netns3.he.netns4.he.netns5.he.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA3.226.0.22023.239.14.2062600:3c03::f03c:91ff:fe73:50d4
●NSns1.he.net2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●NSns2.he.net2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●NSns3.he.net2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●NSns4.he.net2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●NSns5.he.net2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●MXalt1.aspmx.l.google.com2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●MXalt2.aspmx.l.google.com2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●MXaspmx.l.google.com2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●MXaspmx2.googlemail.com2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
●MXaspmx3.googlemail.com2017-06-29 → 2026-03-29 · 2 obs
● 2017-06-29 16:06:22
● 2026-03-29 21:24:36
○A23.239.14.2062017-06-29 → 2017-07-01 · 4 obs
● 2017-06-29 16:06:22
● 2017-07-01 02:19:48
○ 2026-03-04 07:20:42
○ 2026-03-29 21:24:36
○A2600:3c03::f03c:91ff:fe73:50d42017-06-29 → 2017-07-01 · 4 obs
● 2017-06-29 16:06:22
● 2017-07-01 02:19:48
○ 2026-03-04 07:20:42
○ 2026-03-29 21:24:36
●A3.226.0.2202026-03-04 → 2026-03-29 · 3 obs
○ 2017-07-01 02:19:48
● 2026-03-04 07:20:42
● 2026-03-29 21:24:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org-
py4j.orgns3.he.net, ns5.he.net, ns2.he.net, ns4.he.net...-

✅ Authoritative Response

Server:216.66.1.2

NS records: ns3.he.net, ns5.he.net, ns2.he.net, ns4.he.net, ns1.he.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for py4j.org (unsigned zone)

⏱️ Timing

Total: 593ms | Queries: -

📄 Records

TypeCountSample Data
A13.226.0.220
NS5ns3.he.net, ns5.he.net...
MX5ALT2.ASPMX.L.GOOGLE.COM (pri: 5), ASPMX.L.GOOGLE.COM (pri: 1)...
TXT2google-site-verification=rykFFClrihAj-Fc, v=spf1 include:sparkpostmail.com include
SOA1ns1.he.net hostmaster.he.net

Analysis

Hierarchy

The parent of www.py4j.org is py4j.org.

IP Addresses

py4j.org points to an IP address: 3.226.0.220.

Other host names, for instance ec2-3-226-0-220.compute-1.amazonaws.com and infobart.com, share IP numbers with py4j.org.

Name Servers

py4j.org is delegated to five name servers: ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net and ns5.he.net.

py4j.org at least partially shares name servers with other domains, for instance sniper.tf, 71.49.65.in-addr.arpa, 9.140.103.in-addr.arpa, 9h1lo.net and nine-volts.com.

Host names with two IP numbers:

The host name ns1.he.net points to 2001:470:100::2 and 216.218.130.2.

The host name ns2.he.net points to 2001:470:200::2 and 216.218.131.2.

The host name ns3.he.net points to 2001:470:300::2 and 216.218.132.2.

The host name ns4.he.net points to 2001:470:400::2 and 216.66.1.2.

The host name ns5.he.net points to 2001:470:500::2 and 216.66.80.18.

Mail Servers

py4j.org is served by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

py4j.org shares at least partially some mail servers with other domains, for instance corp.zubrcom.net, ns500698.ns500759.ns500736.ns500736.ns500735.ns500736.ns500698.ns500736.ns500735.ns500576.ns500576.ns500576.ns500619.ns500576.ns500576.ns500652.trackreceptor.com, ns500698.ns500698.ns500759.ns500759.ns500736.ns500698.ns500735.ns500698.ns500708.ns500652.ns500576.trackreceptor.com, ns500758.ns500758.ns500759.ns500698.ns500736.ns500735.ns500698.ns500736.ns500698.ns500735.ns500735.ns500576.ns500652.ns500619.ns500576.trackreceptor.com and ns500768.ns500759.ns500698.ns500758.ns500698.ns500735.ns500736.ns500735.ns500698.ns500735.ns500708.ns500576.ns500698.ns500698.ns500576.ns500619.ns500576.trackreceptor.com.

Mail servers frequently appear alongside alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

The host name aspmx2.googlemail.com points to 2607:f8b0:4023:2801::1a and 192.178.128.27.

The host name aspmx3.googlemail.com points to 2607:f8b0:4023:1015::1a and 172.253.135.27.

The host name aspmx.l.google.com points to 2607:f8b0:4023:c06::1b and 142.250.101.26.

The host name alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.26.

The host name alt2.aspmx.l.google.com points to 2607:f8b0:4023:1015::1b and 172.253.135.26.