selfstudy.co - dns.ninja
selfstudy.co
| DNSSEC | ⚠️ Not signed | ||||||
| A | 64.190.63.222🇩🇪 SEDO64.190.62.0/23 -NET2-PI | ||||||
| NS | ns1.sedoparking.com ⭐ | ||||||
| A | 3.130.216.63🇺🇸 Amazon3.130.0.0/16 EC2 CMH prefix | ||||||
| PTR | ec2-3-130-216-63.us-east-2.compute.amazonaws.com | ||||||
| A | 91.195.241.8🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| NS | ns2.sedoparking.com | ||||||
| A | 34.211.188.210🇺🇸 Amazon34.208.0.0/12 EC2 PDX prefix | ||||||
| PTR | ec2-34-211-188-210.us-west-2.compute.amazonaws.com | ||||||
| A | 91.195.240.8🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| MX | localhost ⭐ | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.sedoparking.comhostmaster@sedo.de 2018-05-16 #1 | ||||||
co
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1759732500 | ||||||
Previously MX for
selfstudy.co |
Same first word
selfstudy.plus |
selfstudy.co |
selfstudy.site |
selfstudy.be |
selfstudy.de |
selfstudy.ai |
selfstudy.com |
selfstudy.in |
selfstudy.pro |
selfstudy.guide |
Similar names
DNS History
18 records (4 active, 14 former)
○NSdns1.bigrock.in2015-10-20 → 2016-06-28 · 4 obs
● 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
● 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
● 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
● 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
● 2016-12-26 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
● 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
● 2016-12-26 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
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
●MXlocalhost2026-03-28 → 2026-08-13 · 3 obs
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
○MXselfstudy.co2016-12-26 → 2016-12-26 · 4 obs
● 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
● 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
● 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
● 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
● 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
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
○A54.236.91.1572015-05-30 → 2015-05-30 · 3 obs
○ 2026-03-28 03:38:36
○ 2026-08-13 22:50:00
●A64.190.63.2222026-03-28 → 2026-08-13 · 3 obs
● 2026-03-28 03:38:36
● 2026-08-13 22:50:00
○CNAMEpr-co-suspensions.neuweb.biz2015-05-30 → 2015-05-30 · 3 obs
○ 2015-10-20 06:25:20
○ 2026-08-13 22:50:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co | 8 records |
| selfstudy.co | ns1.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
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 64.190.63.222 |
| NS | 2 | ns2.sedoparking.com, ns1.sedoparking.com |
| MX | 1 | localhost (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.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.