selfstudy.co - dns.ninja

selfstudy.co

DNSSEC⚠️ Not signed
A64.190.63.222🇩🇪 SEDO64.190.62.0/23 -NET2-PI
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.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.sedoparking.comhostmaster@sedo.de 2018-05-16 #1

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759732500

Previously MX for

Same first word

Similar names

DNS History

18 records (4 active, 14 former)

20162017201820192020202120222023202420252026NSns1.sedoparking.comns2.sedoparking.comdns1.bigrock.indns2.bigrock.indns3.bigrock.indns4.bigrock.inns1.md-in-55.bigrock.inns2.md-in-55.bigrock.inMXlocalhostselfstudy.cous2.mx1.mailhostbox.comus2.mx2.mailhostbox.comus2.mx3.mailhostbox.comA64.190.63.222103.211.216.22352.1.146.4454.236.91.157CNAMEpr-co-suspensions.neuweb.biz
NSdns1.bigrock.in2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
NSdns2.bigrock.in2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
NSdns3.bigrock.in2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
NSdns4.bigrock.in2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
NSns1.md-in-55.bigrock.in2016-12-26 → 2016-12-26 · 4 obs
○ 2016-06-28 04:19:34
● 2016-12-26 08:55:24
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
NSns1.sedoparking.com2026-03-28 → 2026-08-13 · 3 obs
○ 2016-12-26 08:55:24
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
NSns2.md-in-55.bigrock.in2016-12-26 → 2016-12-26 · 4 obs
○ 2016-06-28 04:19:34
● 2016-12-26 08:55:24
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
NSns2.sedoparking.com2026-03-28 → 2026-08-13 · 3 obs
○ 2016-12-26 08:55:24
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
MXlocalhost2026-03-28 → 2026-08-13 · 3 obs
○ 2016-12-26 08:55:24
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
MXselfstudy.co2016-12-26 → 2016-12-26 · 4 obs
○ 2016-06-28 04:19:34
● 2016-12-26 08:55:24
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
MXus2.mx1.mailhostbox.com2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
MXus2.mx2.mailhostbox.com2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
MXus2.mx3.mailhostbox.com2015-10-20 → 2016-06-28 · 4 obs
● 2015-10-20 06:25:20
● 2016-06-28 04:19:34
○ 2016-12-26 08:55:24
○ 2026-08-13 22:50:00
A103.211.216.2232016-12-26 → 2016-12-26 · 4 obs
○ 2015-05-30 21:39:16
● 2016-12-26 08:55:24
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
A52.1.146.442015-05-30 → 2015-05-30 · 3 obs
● 2015-05-30 21:39:16
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
A54.236.91.1572015-05-30 → 2015-05-30 · 3 obs
● 2015-05-30 21:39:16
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
A64.190.63.2222026-03-28 → 2026-08-13 · 3 obs
○ 2016-12-26 08:55:24
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
CNAMEpr-co-suspensions.neuweb.biz2015-05-30 → 2015-05-30 · 3 obs
● 2015-05-30 21:39:16
○ 2015-10-20 06:25:20
○ 2026-08-13 22:50:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coa.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co8 records
selfstudy.cons1.sedoparking.com, ns2.sedoparking.com-

✅ Authoritative Response

Server:3.130.216.63

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for selfstudy.co (unsigned zone)

⏱️ Timing

Total: 388ms | Queries: -

📄 Records

TypeCountSample Data
A164.190.63.222
NS2ns2.sedoparking.com, ns1.sedoparking.com
MX1localhost (pri: 0)
TXT1v=spf1 -all
SOA1ns1.sedoparking.com hostmaster.sedo.de

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.registrydns.co, a.registrydns.co, b.registrydns.co...)

Analysis

IP Addresses

selfstudy.co has exactly one IP address — 64.190.63.222.

containerchina.com, xhamspter.com, mail.e99.it plus two other host names have IP numbers in common with selfstudy.co.

Name Servers

selfstudy.co is served by two delegated name servers, ns1.sedoparking.com and ns2.sedoparking.com.

The name server configuration of selfstudy.co is shared with other domains, for instance crazy(0x736578).com, compexim.com, okwin69.com and two others.

Each of the two host names carries two IP addresses: ns1.sedoparking.com points to 3.130.216.63 and 91.195.241.8, and ns2.sedoparking.com points to 34.211.188.210 and 91.195.240.8.

Mail Servers

selfstudy.co uses one mail server — localhost.

The mail server setup of selfstudy.co matches that of other domains such as 139.110-bos.dreamcom.net, fixem.de, stayhome.online and two others.