secondcourse.org - dns.ninja

secondcourse.org

DNSSEC⚠️ Not signed
A172.237.146.18🇺🇸 AKAMAI-LINODE-AP172.237.128.0/19 Akamai Technologies
A172.237.146.39🇺🇸 AKAMAI-LINODE-AP172.237.128.0/19 Akamai Technologies
A172.237.146.46🇺🇸 AKAMAI-LINODE-AP172.237.128.0/19 Akamai Technologies
NSns1.parklogic.com ⭐
A2001:19f0:6000:39be:5400:6ff:fe0b:e907🇺🇸 AS-VULTR2001:19f0:6000::/38 Vultr Assigned Prefix
PTRdns-dnsdist-us-lax-01.parklogic.net
A50.28.104.44🇺🇸 LiquidWeb-AZ50.28.96.0/19 LiquidWeb Inc West
PTRpistachio.parklogic.com
A50.116.34.34🇺🇸 AKAMAI-LINODE-AP50.116.32.0/20 Akamai Technologies
PTRlemonade.parklogic.com
A69.39.238.36🇺🇸 ASN-CQ-GIGENET69.39.224.0/20 GigENET Route
PTRsandstone1.parklogic.com
A69.39.238.37🇺🇸 ASN-CQ-GIGENET69.39.224.0/20 GigENET Route
PTRsandstone2.parklogic.com
A149.28.95.10🇺🇸 AS-VULTR149.28.64.0/19 Vultr Assigned Prefix
PTRdns-dnsdist-us-lax-01.parklogic.net
NSns2.parklogic.com
A2001:19f0:5c00:481f:5400:6ff:fe0b:e87c🇺🇸 AS-VULTR2001:19f0:5c00::/38 Vultr Assigned Prefix
A45.79.197.241🇺🇸 AKAMAI-LINODE-AP45.79.192.0/19 Akamai Technologies
PTRbubblegum.parklogic.com
A50.28.102.86🇺🇸 LiquidWeb-AZ50.28.96.0/19 LiquidWeb Inc West
PTRbiscotti.parklogic.com
A66.42.120.24🇺🇸 AS-VULTR66.42.112.0/20 Vultr Assigned Prefix
PTR66-42-120-24.choopa.net
A216.38.8.120🇺🇸 ASN-CQ-GIGENET216.38.0.0/19 GigENET Route
PTRshamrock1.parklogic.com
A216.38.8.121🇺🇸 ASN-CQ-GIGENET216.38.0.0/19 GigENET Route
PTRshamrock2.parklogic.com
MXmx156.hostedmxserver.com ⭐
A147.182.130.78🇺🇸 DIGITALOCEAN147.182.128.0/20 DigitalOcean
A147.182.160.18🇺🇸 DIGITALOCEAN147.182.160.0/20 DigitalOcean
A147.182.180.139🇺🇸 DIGITALOCEAN147.182.176.0/20 DigitalOcean
A147.182.189.184🇺🇸 DIGITALOCEAN147.182.176.0/20 DigitalOcean
A164.90.197.79🇳🇱 DIGITALOCEAN164.90.192.0/20 DigitalOcean
A164.90.197.105🇳🇱 DIGITALOCEAN164.90.192.0/20 DigitalOcean
A164.90.197.143🇳🇱 DIGITALOCEAN164.90.192.0/20 DigitalOcean
A164.90.197.162🇳🇱 DIGITALOCEAN164.90.192.0/20 DigitalOcean
TXTv=spf1 -all
SOAns1.parklogic.comhostmaster@secondcourse.org 2019-10-23 #1

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=1782662836

Same first word

secondcourse.org
secondcourse.com

Similar names

secondsource.de
securecondos.com
secondsource.com
secondsource.info

DNS History

16 records (6 active, 10 former)

202120222023202420252026NSns1.parklogic.comns2.parklogic.comns33.domaincontrol.comns34.domaincontrol.comMXmx156.hostedmxserver.commx1.emailsendhub.comA172.237.146.18172.237.146.39172.237.146.46172.233.219.123172.233.219.49172.233.219.78172.237.146.25172.237.146.38172.237.146.8184.168.221.57
●NSns1.parklogic.com2026-04-08 → 2026-06-28 · 3 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-06-28 16:44:54
●NSns2.parklogic.com2026-04-08 → 2026-06-28 · 3 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-06-28 16:44:54
○NSns33.domaincontrol.com2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 15:38:00
○ 2026-04-08 02:05:40
○ 2026-06-28 16:44:54
○NSns34.domaincontrol.com2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 15:38:00
○ 2026-04-08 02:05:40
○ 2026-06-28 16:44:54
○MXmx1.emailsendhub.com2026-04-08 → 2026-04-08 · 4 obs
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
●MXmx156.hostedmxserver.com2026-05-23 → 2026-06-28 · 4 obs
○ 2026-04-08 02:05:40
○ 2026-04-08 17:15:14
● 2026-05-23 17:58:38
● 2026-06-28 16:44:54
○A172.233.219.1232026-04-08 → 2026-04-08 · 5 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
○A172.233.219.492026-04-08 → 2026-04-08 · 5 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
○A172.233.219.782026-04-08 → 2026-04-08 · 5 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
●A172.237.146.182026-05-23 → 2026-06-28 · 3 obs
○ 2026-04-08 17:15:14
● 2026-05-23 17:58:38
● 2026-06-28 16:44:54
○A172.237.146.252026-04-08 → 2026-04-08 · 5 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
○A172.237.146.382026-04-08 → 2026-04-08 · 5 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
●A172.237.146.392026-05-23 → 2026-06-28 · 3 obs
○ 2026-04-08 17:15:14
● 2026-05-23 17:58:38
● 2026-06-28 16:44:54
●A172.237.146.462026-05-23 → 2026-06-28 · 3 obs
○ 2026-04-08 17:15:14
● 2026-05-23 17:58:38
● 2026-06-28 16:44:54
○A172.237.146.82026-04-08 → 2026-04-08 · 5 obs
○ 2020-02-12 15:38:00
● 2026-04-08 02:05:40
● 2026-04-08 17:15:14
○ 2026-05-23 17:58:38
○ 2026-06-28 16:44:54
○A184.168.221.572020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 15:38:00
○ 2026-04-08 02:05:40
○ 2026-06-28 16:44:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
secondcourse.orgns1.parklogic.com, ns2.parklogic.com-

✅ Authoritative Response

Server:50.116.34.34

NS records: ns1.parklogic.com, ns2.parklogic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for secondcourse.org (unsigned zone)

⏱️ Timing

Total: 280ms | Queries: -

📄 Records

TypeCountSample Data
A3172.237.146.46, 172.237.146.39...
NS2ns1.parklogic.com, ns2.parklogic.com
MX1mx156.hostedmxserver.com (pri: 10)
TXT1v=spf1 -all
SOA1ns1.parklogic.com hostmaster.secondcours

Analysis

IP Addresses

secondcourse.org points to three IP numbers, namely 172.237.146.18, 172.237.146.39 and 172.237.146.46.

whipping-films.com, iter01.com, emailedge2.torrantos.bugs3.com and two other host names share IP numbers with secondcourse.org.

Name Servers

secondcourse.org is delegated to two name servers: ns1.parklogic.com and ns2.parklogic.com.

secondcourse.org uses the same name servers as several other domains — among them ingdirect.bankinterconsumerfinace.com, xn--hnigsen-sagt-nein-qqb.de, testing.avvocatiassociationline.it and two more.

At least some of secondcourse.org's name servers are shared with other domains, for example pickvideo.net, 04182028.com, home-installation-3fju48.top and two more.

It is common to find these name servers alongside the name servers ns1.ns306.parklogic.com, ns2.ns306.parklogic.com, ns1.oh313.parklogic.com and two others.

Hostnames that resolve to 6 IP addresses:

ns1.parklogic.com resolves to 50.28.104.44, 50.116.34.34, 69.39.238.36 and 3 other IP addresses.

ns2.parklogic.com resolves to 45.79.197.241, 50.28.102.86, 66.42.120.24 and 3 other IP addresses.

Mail Servers

Mail for secondcourse.org is handled by a single mail server, mx156.hostedmxserver.com.

secondcourse.org uses an identical mail server configuration to several other domains — among them dreamygirl.net, nanavote.com, sb-modellbau.de and two more.

mx156.hostedmxserver.com resolves to 8 IP addresses — 147.182.130.78, 147.182.160.18, 147.182.180.139 and 5 others.