johncosta.com - dns.ninja
johncosta.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1785960604 | ||||||
Same first word
johncosta.tech |
johncosta.com |
Similar names
DNS History
7 records (4 active, 3 former)
●NSns37.domaincontrol.com2015-08-22 → 2026-08-05 · 2 obs
● 2026-08-05 20:25:56
●NSns38.domaincontrol.com2015-08-22 → 2026-08-05 · 2 obs
● 2026-08-05 20:25:56
●MXjohncosta-com.mail.protection.outlook.com2026-08-05 → 2026-08-05 · 3 obs
● 2026-08-05 20:25:52
● 2026-08-05 20:25:56
○MXmailstore1.secureserver.net2015-08-22 → 2017-08-11 · 4 obs
● 2017-08-11 20:04:18
○ 2026-08-05 20:25:52
○ 2026-08-05 20:25:56
○MXsmtp.secureserver.net2015-08-22 → 2017-08-11 · 4 obs
● 2017-08-11 20:04:18
○ 2026-08-05 20:25:52
○ 2026-08-05 20:25:56
●A108.41.193.1812017-08-11 → 2026-08-05 · 3 obs
● 2017-08-11 20:04:18
● 2026-08-05 20:25:56
○A108.54.156.372015-08-22 → 2016-09-18 · 4 obs
● 2016-09-18 12:06:34
○ 2017-08-11 20:04:18
○ 2026-08-05 20:25:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net... | - |
| johncosta.com | ns37.domaincontrol.com, ns38.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.76.19
NS records: ns37.domaincontrol.com, ns38.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for johncosta.com (unsigned zone)
⏱️ Timing
Total: 124ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 108.41.193.181 |
| NS | 2 | ns37.domaincontrol.com, ns38.domaincontrol.com |
| MX | 1 | johncosta-com.mail.protection.outlook.co |
| TXT | 4 | NETORGFT9046165.onmicrosoft.com, v=verifydomain MS=9866950... |
| SOA | 1 | ns37.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns37.domaincontrol.com, ns37.domaincontrol.com, ns38.domaincontrol.com...)
Analysis
IP Addresses
johncosta.com resolves to one IP address: 108.41.193.181.
pool-108-41-193-181.nycmny.fios.verizon.net is an example of another host name that shares IP numbers with johncosta.com.
Name Servers
johncosta.com has two authoritative name servers — ns37.domaincontrol.com and ns38.domaincontrol.com.
johncosta.com uses the same name servers as several other domains — among them biibo.com, ubibu.com, mobilepips.com and two more.
Both ns37.domaincontrol.com and ns38.domaincontrol.com have two IP addresses each. ns37.domaincontrol.com resolves to 97.74.108.19 and 2603:5:21c1::13; ns38.domaincontrol.com resolves to 173.201.76.19 and 2603:5:22c1::13.
Mail Servers
Mail for johncosta.com is handled by a single mail server, johncosta-com.mail.protection.outlook.com.
johncosta-com.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.9.20, 52.101.11.2, 52.101.41.0 and 5 others.