rcbuk.com - robtex.com
rcbuk.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=1774445797 | ||||||
Subdomains
Same first word
rcbuk.com |
Similar names
DNS History
14 records (7 active, 7 former)
○NSns01.one.com2015-08-04 → 2017-10-27 · 4 obs
● 2017-10-27 07:33:28
○ 2026-02-28 01:29:40
○ 2026-03-25 14:02:30
○NSns02.one.com2015-08-04 → 2017-10-27 · 4 obs
● 2017-10-27 07:33:28
○ 2026-02-28 01:29:40
○ 2026-03-25 14:02:30
●NSns1.stackdns.com2026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
●NSns2.stackdns.com2026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
●NSns3.stackdns.com2026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
●NSns4.stackdns.com2026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
○MXmail.rcbuk.com2015-08-04 → 2016-07-08 · 4 obs
● 2016-07-08 12:14:50
○ 2016-11-27 00:26:32
○ 2026-03-25 14:02:30
○MXmail2.rcbuk.com2016-03-20 → 2016-07-08 · 5 obs
● 2016-03-20 02:20:30
● 2016-07-08 12:14:50
○ 2016-11-27 00:26:32
○ 2026-03-25 14:02:30
○MXmailhost.rcbuk.com2016-11-27 → 2017-10-27 · 5 obs
● 2016-11-27 00:26:32
● 2017-10-27 07:33:28
○ 2026-02-28 01:29:40
○ 2026-03-25 14:02:30
●MXrcbuk-com.mail.protection.outlook.com2026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
●A185.151.30.1412026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
●A2a07:7800::1412026-02-28 → 2026-03-25 · 3 obs
● 2026-02-28 01:29:40
● 2026-03-25 14:02:30
○A46.30.212.1182015-08-04 → 2016-07-08 · 4 obs
● 2016-07-08 12:14:50
○ 2016-11-27 00:26:32
○ 2026-03-25 14:02:30
○A46.30.213.2322016-11-27 → 2017-10-27 · 5 obs
● 2016-11-27 00:26:32
● 2017-10-27 07:33:28
○ 2026-02-28 01:29:40
○ 2026-03-25 14:02:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net... | - |
| rcbuk.com | ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com | 4 records |
✅ Authoritative Response
Server:104.196.137.209
NS records: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rcbuk.com (unsigned zone)
⏱️ Timing
Total: 269ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.151.30.141 |
| AAAA | 1 | 2a07:7800::141 |
| NS | 4 | ns1.stackdns.com, ns2.stackdns.com... |
| MX | 1 | rcbuk-com.mail.protection.outlook.com (p |
| TXT | 3 | apple-domain-verification=UXTPGNAtXa1Xdq, v=spf1 include:spf.protection.outlook.co... |
| SOA | 1 | ns1.stackdns.com hostmaster.stackdns.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com...)
Analysis
Hierarchy
rcbuk.com is a parent of mailhost.rcbuk.com and mail.rcbuk.com.
IP Addresses
rcbuk.com has two IP numbers: 2a07:7800::141 and 185.151.30.141.
Other host names, for instance ithalisayakkabilari.com, mailserver.bjohnstone.co.uk, www.quantum-electrical.co.uk, m2ecs.net and www.giac-btp.com share IP numbers with rcbuk.com.
Name Servers
rcbuk.com delegates to four name servers: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com and ns4.stackdns.com.
rcbuk.com at least partially shares name servers with other domains, including glencoaching.com, omtstudios.com, boarsheadhotel.net, mcastle.co.uk and gohealthystyle.co.uk.
Host names with one IP number:
ns1.stackdns.com points to 35.197.225.59; ns2.stackdns.com points to 146.148.28.88; ns3.stackdns.com points to 35.198.79.191; ns4.stackdns.com points to 104.196.137.209.
Mail Servers
A single mail server handles rcbuk.com, rcbuk-com.mail.protection.outlook.com.
Host rcbuk-com.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:ca04::1, 2a01:111:f403:ca04::8, 2a01:111:f403:ca04::9, 2a01:111:f403:ca09::4, 52.101.68.15, 52.101.73.1, 52.101.73.2 and 52.101.73.8.