rtc.com - dns.ninja
rtc.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=1784973177 | ||||||
PTR for
Subdomains
Same first word
Similar names
DNS History
13 records (6 active, 7 former)
○NSns1.mdnsservice.com2009-01-28 → 2009-01-28 · 3 obs
○ 2015-07-13 16:39:00
○ 2026-07-25 10:19:04
●NSns1.shopco.com2015-07-13 → 2026-07-25 · 3 obs
● 2015-07-13 16:39:00
● 2026-07-25 10:19:04
○NSns2.mdnsservice.com2009-01-28 → 2009-01-28 · 3 obs
○ 2015-07-13 16:39:00
○ 2026-07-25 10:19:04
●NSns2.shopco.com2015-07-13 → 2026-07-25 · 3 obs
● 2015-07-13 16:39:00
● 2026-07-25 10:19:04
○NSns3.mdnsservice.com2009-01-28 → 2009-01-28 · 3 obs
○ 2015-07-13 16:39:00
○ 2026-07-25 10:19:04
●NSns3.shopco.com2015-07-13 → 2026-07-25 · 3 obs
● 2015-07-13 16:39:00
● 2026-07-25 10:19:04
○MXmail1.rtc.com2009-01-28 → 2017-01-19 · 4 obs
● 2017-01-19 08:17:50
○ 2017-08-01 00:26:26
○ 2026-07-25 10:19:04
○MXmail2.rtc.com2009-01-28 → 2017-01-19 · 4 obs
● 2017-01-19 08:17:50
○ 2017-08-01 00:26:26
○ 2026-07-25 10:19:04
●MXus-smtp-inbound-1.mimecast.com2017-08-01 → 2026-07-25 · 3 obs
● 2017-08-01 00:26:26
● 2026-07-25 10:19:04
●MXus-smtp-inbound-2.mimecast.com2017-08-01 → 2026-07-25 · 3 obs
● 2017-08-01 00:26:26
● 2026-07-25 10:19:04
○A184.168.166.12015-07-13 → 2017-01-19 · 5 obs
● 2015-07-13 16:39:00
● 2017-01-19 08:17:50
○ 2017-08-01 00:26:26
○ 2026-07-25 10:19:04
●A23.185.0.42017-08-01 → 2026-07-25 · 3 obs
● 2017-08-01 00:26:26
● 2026-07-25 10:19:04
○A69.7.215.2352009-01-28 → 2009-01-28 · 3 obs
○ 2015-07-13 16:39:00
○ 2026-07-25 10:19:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net... | - |
| rtc.com | ns1.shopco.com, ns2.shopco.com, ns3.shopco.com | 6 records |
✅ Authoritative Response
Server:64.99.96.35
NS records: ns1.shopco.com, ns2.shopco.com, ns3.shopco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rtc.com (unsigned zone)
⏱️ Timing
Total: 229ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.185.0.4 |
| NS | 3 | ns1.shopco.com, ns3.shopco.com... |
| MX | 2 | us-smtp-inbound-2.mimecast.com (pri: 10), us-smtp-inbound-1.mimecast.com (pri: 10) |
| TXT | 16 | MS=ms53734608, ukqfl3sjdfmsacslu92qrddtrr... |
| SOA | 1 | ns1.shopco.com hostmaster@shopco.com |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.shopco.com, ns1.shopco.com, ns2.shopco.com...)
Analysis
Hierarchy
rtc.com sits above www.rtc.com, webmail.rtc.com and mail2.rtc.com in the domain hierarchy.
IP Addresses
rtc.com has exactly one IP address — 23.185.0.4.
nebraska-advantage.com, ucits.org, yosemite.org plus two other host names have IP numbers in common with rtc.com.
Name Servers
rtc.com is served by three name servers: ns1.shopco.com, ns2.shopco.com and ns3.shopco.com.
There is at least partial name server overlap between rtc.com and other domains — dactax.com, allaboutgreens.com, evmx.com and two more among them.
The hostnames ns1.shopco.com, ns2.shopco.com and ns3.shopco.com each direct to two IP addresses — ns1.shopco.com to 216.40.47.80 and 2604:4000:0:d:216:40:47:80, ns2.shopco.com to 64.98.148.14 and 2604:4000:2800:d:64:99:148:14, and ns3.shopco.com to 64.99.96.35 and 2604:4000:0:d:64:99:96:35.
Mail Servers
rtc.com uses two mail servers, us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.
The mail server setup of rtc.com matches that of other domains such as andpkg.com, impactps.org, aad.org and two others.
At least some of the mail servers used by rtc.com are shared with other domains: photopens.com, brooksrunning.co.uk, switchnap.com and two others among them.
Hosts with 6 IP addresses each:
us-smtp-inbound-1.mimecast.com maps to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 additional IP addresses.
us-smtp-inbound-2.mimecast.com maps to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 additional IP addresses.
us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.141 IP addresses.
us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.221 IP addresses.
us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.242 IP addresses.
us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.141 IP addresses.
us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.221 IP addresses.
us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.242 IP addresses.