syscou.com - robtex.com
syscou.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a4.nstld.com ⚠️ Not in zone NS records | ||||||
| A | 2600:180a:1001::1🇺🇸 Tiggee2600:180a:1001::/48 Constellix anycast network | ||||||
| PTR | ns11.constellix.com | ||||||
| A | 96.45.80.1🇺🇸 Tiggee96.45.80.0/24 route 96.45.80.0/24 | ||||||
| PTR | ns11.constellix.com | ||||||
| NS | f4.nstld.com ⚠️ Not in zone NS records | ||||||
| A | 2600:180b:2001::1🇺🇸 Tiggee2600:180b:2001::/48 Constellix anycast network | ||||||
| PTR | ns21.constellix.com | ||||||
| A | 46.31.236.1🇺🇸 Tiggee46.31.236.0/24 route 46.31.236.0/24 | ||||||
| PTR | ns21.constellix.com | ||||||
| NS | g4.nstld.com ⚠️ Not in zone NS records | ||||||
| A | 2600:180c:3001::1🇺🇸 Tiggee2600:180c:3001::/48 Constellix anycast network | ||||||
| PTR | ns31.constellix.com | ||||||
| A | 43.247.170.1🇯🇵 Tiggee43.247.170.0/24 route 43.247.170.0/24 | ||||||
| PTR | ns31.constellix.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=1790744219 | ||||||
Same first word
syscou.com |
Similar names
Previous names
Next names
DNS History
7 records (3 active, 4 former)
●NSa4.nstld.com2026-08-21 → 2026-09-30 · 3 obs
● 2026-08-21 13:33:28
● 2026-09-30 05:18:06
●NSf4.nstld.com2026-08-21 → 2026-09-30 · 3 obs
● 2026-08-21 13:33:28
● 2026-09-30 05:18:06
●NSg4.nstld.com2026-08-21 → 2026-09-30 · 3 obs
● 2026-08-21 13:33:28
● 2026-09-30 05:18:06
○NSns1.sysco.com2015-06-28 → 2017-03-19 · 4 obs
● 2017-03-19 20:25:16
○ 2026-08-21 13:33:28
○ 2026-09-30 05:18:06
○NSns2.sysco.com2015-06-28 → 2017-03-19 · 4 obs
● 2017-03-19 20:25:16
○ 2026-08-21 13:33:28
○ 2026-09-30 05:18:06
○NSns3.sysco.com2015-06-28 → 2017-03-19 · 4 obs
● 2017-03-19 20:25:16
○ 2026-08-21 13:33:28
○ 2026-09-30 05:18:06
○A66.135.122.262015-06-28 → 2017-03-19 · 4 obs
● 2017-03-19 20:25:16
○ 2026-08-21 13:33:28
○ 2026-09-30 05:18:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net... | - |
| syscou.com | a4.nstld.com, f4.nstld.com, g4.nstld.com | 6 records |
✅ Authoritative Response
Server:46.31.236.1
NS records: a4.nstld.com, f4.nstld.com, g4.nstld.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for syscou.com (unsigned zone)
⏱️ Timing
Total: 175ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (a4.nstld.com, a4.nstld.com, f4.nstld.com...)
Analysis
Name Servers
DNS for syscou.com is handled by three authoritative name servers: a4.nstld.com, f4.nstld.com and g4.nstld.com.
syscou.com shares at least some of its name servers with other domains, including vh1.us, skyvegas.co, natexis.cd and two others.
These name servers are frequently seen alongside l4.nstld.com, h4.nstld.com, j4.nstld.com and 4 other name servers.
Three hostnames — a4.nstld.com, f4.nstld.com and g4.nstld.com — each have two IP addresses: a4.nstld.com has 96.45.80.1 and 2600:180a:1001::1, f4.nstld.com has 46.31.236.1 and 2600:180b:2001::1, and g4.nstld.com has 43.247.170.1 and 2600:180c:3001::1.