aboutcourse.com - dns.ninja

aboutcourse.com

DNSSEC⚠️ Not signed
A64.190.63.222🇩🇪 SEDO64.190.62.0/23 -NET2-PI
NSns1.afternic.com ⭐ ⚠️ Not in zone NS records
A2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44
PTRns1.afternic.com
A97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23
PTRns1.afternic.com
NSns1.sedoparking.com
A3.130.216.63🇺🇸 Amazon3.130.0.0/16 EC2 CMH prefix
PTRec2-3-130-216-63.us-east-2.compute.amazonaws.com
A91.195.241.8🇩🇪 SEDO91.195.240.0/23 -NET-PI
NSns2.afternic.com ⚠️ Not in zone NS records
A2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44
PTRns2.afternic.com
A173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23
PTRns2.afternic.com
NSns2.sedoparking.com
A34.211.188.210🇺🇸 Amazon34.208.0.0/12 EC2 PDX prefix
PTRec2-34-211-188-210.us-west-2.compute.amazonaws.com
A91.195.240.8🇩🇪 SEDO91.195.240.0/23 -NET-PI
MXlocalhost ⭐
TXTv=spf1 -all
SOAns1.afternic.comdns@jomax.net serial=1

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=1785885679

Same first word

aboutcourse.com

Similar names

sabocouture.com
aboutsource.net
aboutsource.de

DNS History

22 records (6 active, 16 former)

20162017201820192020202120222023202420252026NSns1.afternic.comns1.sedoparking.comns2.afternic.comns2.sedoparking.comns1.namebrightdns.comns2.namebrightdns.comredbusprimarydns.aboutcourse.comredbussecondarydns.aboutcourse.comMXlocalhostmail1.namebrightmail.commail2.namebrightmail.comA64.190.63.22213.248.169.48195.149.84.100195.149.84.1012001:67c:38c::642001:67c:38c::652600:1f18:4ae:c607:d1d9:565f:b122:bfdb2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a52.44.244.9854.165.131.18376.223.54.146
●NSns1.afternic.com2026-02-17 → 2026-08-04 · 3 obs
○ 2016-12-02 20:31:42
● 2026-02-17 02:38:08
● 2026-08-04 23:33:44
○NSns1.namebrightdns.com2026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
●NSns1.sedoparking.com2026-02-17 → 2026-08-04 · 3 obs
○ 2016-12-02 20:31:42
● 2026-02-17 02:38:08
● 2026-08-04 23:33:44
●NSns2.afternic.com2026-02-17 → 2026-08-04 · 3 obs
○ 2016-12-02 20:31:42
● 2026-02-17 02:38:08
● 2026-08-04 23:33:44
○NSns2.namebrightdns.com2026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
●NSns2.sedoparking.com2026-02-17 → 2026-08-04 · 3 obs
○ 2016-12-02 20:31:42
● 2026-02-17 02:38:08
● 2026-08-04 23:33:44
○NSredbusprimarydns.aboutcourse.com2015-05-18 → 2016-12-02 · 4 obs
● 2015-05-18 17:58:52
● 2016-12-02 20:31:42
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○NSredbussecondarydns.aboutcourse.com2015-05-18 → 2016-12-02 · 4 obs
● 2015-05-18 17:58:52
● 2016-12-02 20:31:42
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
●MXlocalhost2026-02-17 → 2026-08-04 · 8 obs
● 2026-02-17 02:38:08
○ 2026-04-02 07:08:20
○ 2026-05-01 07:54:44
● 2026-05-06 00:18:16
● 2026-05-07 22:29:22
○ 2026-05-29 06:44:46
● 2026-07-23 11:23:24
● 2026-08-04 23:33:44
○MXmail1.namebrightmail.com2026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○MXmail2.namebrightmail.com2026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A13.248.169.482026-05-06 → 2026-07-23 · 6 obs
○ 2026-05-01 07:54:44
● 2026-05-06 00:18:16
● 2026-06-14 00:11:00
○ 2026-07-21 22:25:00
● 2026-07-23 11:23:24
○ 2026-08-04 23:33:44
○A195.149.84.1002015-05-18 → 2016-12-02 · 4 obs
● 2015-05-18 17:58:52
● 2016-12-02 20:31:42
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A195.149.84.1012015-05-18 → 2016-12-02 · 4 obs
● 2015-05-18 17:58:52
● 2016-12-02 20:31:42
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A2001:67c:38c::642015-05-18 → 2016-12-02 · 4 obs
● 2015-05-18 17:58:52
● 2016-12-02 20:31:42
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A2001:67c:38c::652015-05-18 → 2016-12-02 · 4 obs
● 2015-05-18 17:58:52
● 2016-12-02 20:31:42
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A2600:1f18:4ae:c607:d1d9:565f:b122:bfdb2026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a2026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A52.44.244.982026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
○A54.165.131.1832026-02-17 → 2026-08-04 · 2 obs
○ 2026-02-17 02:38:08
○ 2026-08-04 23:33:44
●A64.190.63.2222026-02-17 → 2026-08-04 · 8 obs
○ 2016-12-02 20:31:42
● 2026-02-17 02:38:08
● 2026-05-01 07:54:44
○ 2026-05-06 00:18:16
○ 2026-06-14 00:11:00
● 2026-07-21 22:25:00
○ 2026-07-23 11:23:24
● 2026-08-04 23:33:44
○A76.223.54.1462026-05-06 → 2026-07-23 · 6 obs
○ 2026-05-01 07:54:44
● 2026-05-06 00:18:16
● 2026-06-14 00:11:00
○ 2026-07-21 22:25:00
● 2026-07-23 11:23:24
○ 2026-08-04 23:33:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...-
aboutcourse.comns1.afternic.com, ns2.afternic.com, ns1.sedoparking.com, ns2.sedoparking.com6 records

✅ Authoritative Response

Server:91.195.240.8

NS records: ns1.afternic.com, ns2.afternic.com, ns1.sedoparking.com, ns2.sedoparking.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for aboutcourse.com (unsigned zone)

⏱️ Timing

Total: 482ms | Queries: -

📄 Records

TypeCountSample Data
A164.190.63.222
NS2ns2.sedoparking.com, ns1.sedoparking.com
MX1. (pri: 0)
TXT1v=spf1 -all
SOA1ns1.sedoparking.com hostmaster.sedo.de

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)

Analysis

IP Addresses

aboutcourse.com has exactly one IP address — 64.190.63.222.

o-i.net, costumeking.com, atomy.com.ph plus two other host names have IP numbers in common with aboutcourse.com.

Name Servers

Four name servers handle the delegation for aboutcourse.com: ns1.afternic.com, ns2.afternic.com, ns1.sedoparking.com and ns2.sedoparking.com.

At least some of aboutcourse.com's name servers are shared with other domains, for example mail.wiollo.com, hlbllc.com, targetmetals.com and two more.

These name servers are often deployed together with the name servers verification-ag3xtxqjhqhiyarqdrht2l.ns101.verify.hn, verification-d3jclucsp89ganyqbydeny.ns101.verify.hn, verification-m3erh32ujyoastvophjvuz.ns101.verify.hn and verification-gva484mj3nv4guz8sbdfk5.ns101.verify.hn.

Four hostnames, each resolving to a pair of IP addresses: ns1.afternic.com directs to 97.74.98.69 and 2603:5:2126::45; ns2.afternic.com directs to 173.201.66.69 and 2603:5:2226::45; ns1.sedoparking.com directs to 3.130.216.63 and 91.195.241.8; ns2.sedoparking.com directs to 34.211.188.210 and 91.195.240.8.

Mail Servers

aboutcourse.com uses one mail server — localhost.

The mail server setup of aboutcourse.com matches that of other domains such as mailproxy.smilespa.eu, mierre.com, luxury-bed-in-a-box.online and two others.