system51.biz - robtex.com
system51.biz
biz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld.biz ⭐ | ||||||
| NS | b.gtld.biz | ||||||
| NS | c.gtld.biz | ||||||
| NS | m.gtld.biz | ||||||
| NS | n.gtld.biz | ||||||
| NS | w.gtld.biz | ||||||
| NS | x.gtld.biz | ||||||
| NS | y.gtld.biz | ||||||
| SOA | a.gtld.bizadmin@tldns.godaddy serial=1778351012 | ||||||
Same first word
Similar names
DNS History
15 records (6 active, 9 former)
●NSns1-09.azure-dns.com2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 12:10:58
● 2026-05-09 19:00:36
○NSns1.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
●NSns2-09.azure-dns.net2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 12:10:58
● 2026-05-09 19:00:36
○NSns2.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
●NSns3-09.azure-dns.org2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 12:10:58
● 2026-05-09 19:00:36
○NSns3.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
●NSns4-09.azure-dns.info2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 12:10:58
● 2026-05-09 19:00:36
○NSns4.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
○MXsgrmgw1.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
○MXsgrmgw2.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
○MXsgrmgw3.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
○MXsgrmgw4.swatchgroup.com2015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
●MXsgrmgw5.swatchgroup.com2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 12:10:58
● 2026-05-09 19:00:36
●MXsgrmgw6.swatchgroup.com2026-05-03 → 2026-05-09 · 3 obs
● 2026-05-03 12:10:58
● 2026-05-09 19:00:36
○A193.222.87.1732015-08-09 → 2016-09-13 · 4 obs
● 2016-09-13 05:12:58
○ 2026-05-03 12:10:58
○ 2026-05-09 19:00:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| biz | a.gtld.biz, b.gtld.biz, c.gtld.biz, m.gtld.biz... | - |
| system51.biz | ns4-09.azure-dns.info, ns3-09.azure-dns.org, ns1-09.azure-dns.com, ns2-09.azure-dns.net | - |
✅ Authoritative Response
Server:208.84.5.9
NS records: ns4-09.azure-dns.info, ns3-09.azure-dns.org, ns1-09.azure-dns.com, ns2-09.azure-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for system51.biz (unsigned zone)
⏱️ Timing
Total: 411ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1-09.azure-dns.com, ns2-09.azure-dns.net... |
| MX | 2 | sgrmgw5.swatchgroup.com (pri: 5), sgrmgw6.swatchgroup.com (pri: 5) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns1-09.azure-dns.com hostmaster.system51 |
Analysis
Name Servers
system51.biz's delegation is handled by four name servers: ns1-09.azure-dns.com, ns4-09.azure-dns.info, ns2-09.azure-dns.net and ns3-09.azure-dns.org.
system51.biz partially shares name servers with other domains; examples include 146.107.131.in-addr.arpa, dflow.com, fondazionevittimereati.it, healthysafechildren.org and familygamesnight.co.nz.
Host names with two IPs:
ns1-09.azure-dns.com points to 2603:1061:0:700::9 and 13.107.236.9
ns4-09.azure-dns.info points to 2620:1ec:bda:700::9 and 208.84.5.9
ns2-09.azure-dns.net points to 2620:1ec:8ec:700::9 and 150.171.21.9
ns3-09.azure-dns.org points to 2a01:111:4000:700::9 and 204.14.183.9
Mail Servers
system51.biz is handled by two mail servers: sgrmgw5.swatchgroup.com and sgrmgw6.swatchgroup.com.
system51.biz has the same mail server setup as other domains, including breguet-servis.ru, swatch.com.ru, swatchoutlet.shop, leon-hatot.co.kr and harrywinston.pl.
Host names with one IP number: The host name sgrmgw5.swatchgroup.com points to 149.133.4.180 and the host name sgrmgw6.swatchgroup.com points to 149.133.4.181.