johnsn.co - robtex.com
johnsn.co
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=1759633235 | ||||||
Same first word
Similar names
DNS History
11 records (11 active, 0 former)
●NSns71.domaincontrol.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●NSns72.domaincontrol.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●MXalt1.aspmx.l.google.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●MXalt2.aspmx.l.google.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●MXalt3.aspmx.l.google.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●MXalt4.aspmx.l.google.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●MXaspmx.l.google.com2026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●A198.185.159.1442026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●A198.185.159.1452026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●A198.49.23.1442026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
●A198.49.23.1452026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:43:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co | - |
| johnsn.co | ns72.domaincontrol.com, ns71.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.73.46
NS records: ns72.domaincontrol.com, ns71.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for johnsn.co (unsigned zone)
⏱️ Timing
Total: 689ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 198.185.159.144, 198.185.159.145... |
| NS | 2 | ns71.domaincontrol.com, ns72.domaincontrol.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 1 | v=spf1 include:dc-aa8e722993._spfm.johns |
| SOA | 1 | ns71.domaincontrol.com dns.jomax.net |
Analysis
IP Addresses
johnsn.co maps to four IP numbers: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.
Other host names, for instance mapitt.org, adilmansoor.com, juliatyndall.co.uk, thinkoflaura.org and staceywidgertherapy.com share IP numbers with johnsn.co.
Name Servers
Two name servers ns71.domaincontrol.com and ns72.domaincontrol.com handle delegation for johnsn.co.
johnsn.co uses the same name server setup as other domains, for example pkgeotech.com, analogueshop.com, norre.de, criterion.com.my and jbclothiers.com.
Host names with two IP numbers:
ns71.domaincontrol.com points to: 2603:5:2194::2e and 97.74.105.46
ns72.domaincontrol.com points to: 2603:5:2294::2e and 173.201.73.46
Mail Servers
Five mail servers handle johnsn.co: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
johnsn.co shares some mail servers with other domains, at least partially, such as demand-pro.com, hanabi.com, dpisllc.com, ns500821.ns500821.ns500795.ns500795.ns500821.ns500794.ns500821.ns500795.ns500821.ns500821.ns500790.ns500795.lustypartnersfinder.com and ns500742.ns500742.ns500671.ns500754.ns500671.ns500704.ns500671.ns500678.ns500142.lusty(0x736c7574)z.com.
These mail servers are often used with aspmx3.googlemail.com, aspmx2.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to: 2607:f8b0:4004:c27::1a and 142.251.179.26
alt1.aspmx.l.google.com points to: 2800:3f0:4003:c0f::1a and 108.177.123.26
alt2.aspmx.l.google.com points to: 2a00:1450:400b:c02::1b and 172.253.116.26
alt3.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1b and 172.253.145.27
alt4.aspmx.l.google.com points to: 2a00:1450:400c:c00::1b and 173.194.76.26