sysdadmin.com - robtex.com
sysdadmin.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-1547.awsdns-01.co.uk ⭐ | ||||||
| A | 2600:9000:5306:b00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1547.awsdns-01.co.uk | ||||||
| A | 205.251.198.11🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1547.awsdns-01.co.uk | ||||||
| NS | ns-1042.awsdns-02.org | ||||||
| A | 2600:9000:5304:1200::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1042.awsdns-02.org | ||||||
| A | 205.251.196.18🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1042.awsdns-02.org | ||||||
| NS | ns-339.awsdns-42.com | ||||||
| A | 2600:9000:5301:5300::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-339.awsdns-42.com | ||||||
| A | 205.251.193.83🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-339.awsdns-42.com | ||||||
| NS | ns-721.awsdns-26.net | ||||||
| A | 2600:9000:5302:d100::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-721.awsdns-26.net | ||||||
| A | 205.251.194.209🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-721.awsdns-26.net | ||||||
| SOA | ns-1547.awsdns-01.co.ukawsdns-hostmaster@amazon.com serial=1 | ||||||
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=1790475554 | ||||||
Same first word
sysdadmin.com |
sysdadmin.cc |
Similar names
Previous names
Next names
DNS History
8 records (4 active, 4 former)
●NSns-1042.awsdns-02.org2026-08-19 → 2026-09-27 · 3 obs
● 2026-08-19 20:12:54
● 2026-09-27 02:42:44
●NSns-1547.awsdns-01.co.uk2026-08-19 → 2026-09-27 · 3 obs
● 2026-08-19 20:12:54
● 2026-09-27 02:42:44
●NSns-339.awsdns-42.com2026-08-19 → 2026-09-27 · 3 obs
● 2026-08-19 20:12:54
● 2026-09-27 02:42:44
●NSns-721.awsdns-26.net2026-08-19 → 2026-09-27 · 3 obs
● 2026-08-19 20:12:54
● 2026-09-27 02:42:44
○NSns1.digitalocean.com2015-08-11 → 2020-01-15 · 4 obs
● 2020-01-15 02:58:10
○ 2026-08-19 20:12:54
○ 2026-09-27 02:42:44
○NSns2.digitalocean.com2015-08-11 → 2020-01-15 · 4 obs
● 2020-01-15 02:58:10
○ 2026-08-19 20:12:54
○ 2026-09-27 02:42:44
○NSns3.digitalocean.com2015-08-11 → 2020-01-15 · 4 obs
● 2020-01-15 02:58:10
○ 2026-08-19 20:12:54
○ 2026-09-27 02:42:44
○A162.243.158.1852015-08-11 → 2020-01-15 · 4 obs
● 2020-01-15 02:58:10
○ 2026-08-19 20:12:54
○ 2026-09-27 02:42:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| sysdadmin.com | ns-721.awsdns-26.net, ns-339.awsdns-42.com, ns-1547.awsdns-01.co.uk, ns-1042.awsdns-02.org | 2 records |
✅ Authoritative Response
Server:205.251.198.11
NS records: ns-721.awsdns-26.net, ns-339.awsdns-42.com, ns-1547.awsdns-01.co.uk, ns-1042.awsdns-02.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysdadmin.com (unsigned zone)
⏱️ Timing
Total: 292ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1042.awsdns-02.org, ns-1547.awsdns-01.co.uk... |
| SOA | 1 | ns-1547.awsdns-01.co.uk awsdns-hostmaste |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-339.awsdns-42.com, ns-339.awsdns-42.com)
Analysis
Name Servers
Four name servers handle the delegation for sysdadmin.com: ns-339.awsdns-42.com, ns-721.awsdns-26.net, ns-1042.awsdns-02.org and ns-1547.awsdns-01.co.uk.
sysdadmin.com shares at least some of its name servers with other domains, including citywireselector.com, buffalostatesoccercamp.com, ecovalores.com.ar and two others.
The host names ns-339.awsdns-42.com, ns-721.awsdns-26.net, ns-1042.awsdns-02.org and ns-1547.awsdns-01.co.uk each resolve to two IP addresses: ns-339.awsdns-42.com resolves to 205.251.193.83 and 2600:9000:5301:5300::1; ns-721.awsdns-26.net resolves to 205.251.194.209 and 2600:9000:5302:d100::1; ns-1042.awsdns-02.org resolves to 205.251.196.18 and 2600:9000:5304:1200::1; ns-1547.awsdns-01.co.uk resolves to 205.251.198.11 and 2600:9000:5306:b00::1.