checkingin.co - dns.ninja
checkingin.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=1759728646 | ||||||
Subdomains
api-production.checkingin.co |
Same first word
checkingin.me |
checkingin.co |
checkingin.net |
Similar names
DNS History
10 records (10 active, 0 former)
●NSns-1183.awsdns-19.org2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●NSns-1591.awsdns-06.co.uk2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●NSns-424.awsdns-53.com2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●NSns-539.awsdns-03.net2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●MXalt1.aspmx.l.google.com2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●MXalt2.aspmx.l.google.com2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●MXaspmx2.googlemail.com2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●MXaspmx3.googlemail.com2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●MXsmtp.google.com2026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
●A75.2.60.52026-02-17 → 2026-08-09 · 2 obs
● 2026-08-09 08:40:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | c.registrydns.co, b.registrydns.co, d.registrydns.co, a.registrydns.co | - |
| checkingin.co | ns-1591.awsdns-06.co.uk, ns-539.awsdns-03.net, ns-424.awsdns-53.com, ns-1183.awsdns-19.org | - |
✅ Authoritative Response
Server:205.251.193.168
NS records: ns-1591.awsdns-06.co.uk, ns-539.awsdns-03.net, ns-424.awsdns-53.com, ns-1183.awsdns-19.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for checkingin.co (unsigned zone)
⏱️ Timing
Total: 572ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 75.2.60.5 |
| NS | 4 | ns-1183.awsdns-19.org, ns-1591.awsdns-06.co.uk... |
| MX | 5 | smtp.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)... |
| TXT | 1 | google-site-verification=NZLEeF3Mgi8_q_y |
| SOA | 1 | ns-539.awsdns-03.net awsdns-hostmaster.a |
Analysis
Hierarchy
api-production.checkingin.co is a subdomain of checkingin.co.
IP Addresses
checkingin.co has exactly one IP address — 75.2.60.5.
rootshell.org, alaalebi.com, hostlist.io plus two other host names have IP numbers in common with checkingin.co.
Name Servers
Four name servers handle the delegation for checkingin.co: ns-424.awsdns-53.com, ns-539.awsdns-03.net, ns-1183.awsdns-19.org and ns-1591.awsdns-06.co.uk.
The name servers of checkingin.co overlap at least partially with those of other domains — among them virtuability.eu, engagementinnovation.com, dhapp.global and two more.
Each of the four hosts ns-424.awsdns-53.com, ns-539.awsdns-03.net, ns-1183.awsdns-19.org and ns-1591.awsdns-06.co.uk has two IP addresses. ns-424.awsdns-53.com points to 205.251.193.168 and 2600:9000:5301:a800::1. ns-539.awsdns-03.net points to 205.251.194.27 and 2600:9000:5302:1b00::1. ns-1183.awsdns-19.org points to 205.251.196.159 and 2600:9000:5304:9f00::1. ns-1591.awsdns-06.co.uk points to 205.251.198.55 and 2600:9000:5306:3700::1.
Mail Servers
checkingin.co has five mail servers, which are smtp.google.com, aspmx2.googlemail.com, aspmx3.googlemail.com and two others.
At least some of the mail servers used by checkingin.co are shared with other domains: lagavea.com.br, ns500731.ns500742.ns500754.ns500754.ns500671.ns500704.ns500731.ns500705.ns500649.ns500649.ns500649.ns500649.ns500666.ns500142.lusty(0x736c7574)z.com, ns500734.ns500734.ns500699.ns500699.ns500699.ns500693.ns500588.ns500699.ns500699.ns500632.ns500588.ns500632.dtrkdll.com and two others among them.
These mail servers are often deployed together with alt1.aspmx.l.google.com, aspmx.l.google.com, alt2.aspmx.l.google.com and 4 other mail servers.
Hosts with 9 IP addresses each:
Hostname smtp.google.com directs to 142.251.163.26, 142.251.163.27 and 173.194.45.26 along with 6 other IP addresses.
Host names pointing to two IP addresses:
aspmx2.googlemail.com directs traffic to 192.178.234.26 and 2800:3f0:4003:c14::1a.
aspmx3.googlemail.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.
alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.
Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 2a00:1450:400b:c02::1a IP addresses each.
Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 172.253.116.26 IP addresses each.