sysopsguide.com - robtex.com
sysopsguide.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.139.191.230🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix | ||||||
| PTR | ec2-3-139-191-230.us-east-2.compute.amazonaws.com | ||||||
| NS | ns-170.awsdns-21.com ⭐ | ||||||
| A | 2600:9000:5300:aa00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-170.awsdns-21.com | ||||||
| A | 205.251.192.170🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-170.awsdns-21.com | ||||||
| NS | ns-1169.awsdns-18.org | ||||||
| A | 2600:9000:5304:9100::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1169.awsdns-18.org | ||||||
| A | 205.251.196.145🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1169.awsdns-18.org | ||||||
| NS | ns-1940.awsdns-50.co.uk | ||||||
| A | 2600:9000:5307:9400::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1940.awsdns-50.co.uk | ||||||
| A | 205.251.199.148🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1940.awsdns-50.co.uk | ||||||
| NS | ns-646.awsdns-16.net | ||||||
| A | 2600:9000:5302:8600::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-646.awsdns-16.net | ||||||
| A | 205.251.194.134🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-646.awsdns-16.net | ||||||
| SOA | ns-170.awsdns-21.comawsdns-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=1790815394 | ||||||
Same first word
sysopsguide.com |
Similar names
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●NSns-1169.awsdns-18.org2026-09-25 → 2026-10-01 · 2 obs
● 2026-10-01 00:53:42
●NSns-170.awsdns-21.com2026-09-25 → 2026-10-01 · 2 obs
● 2026-10-01 00:53:42
●NSns-1940.awsdns-50.co.uk2026-09-25 → 2026-10-01 · 2 obs
● 2026-10-01 00:53:42
●NSns-646.awsdns-16.net2026-09-25 → 2026-10-01 · 2 obs
● 2026-10-01 00:53:42
●A3.139.191.2302026-09-25 → 2026-10-01 · 2 obs
● 2026-10-01 00:53:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net... | - |
| sysopsguide.com | ns-170.awsdns-21.com, ns-646.awsdns-16.net, ns-1169.awsdns-18.org, ns-1940.awsdns-50.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.199.148
NS records: ns-170.awsdns-21.com, ns-646.awsdns-16.net, ns-1169.awsdns-18.org, ns-1940.awsdns-50.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysopsguide.com (unsigned zone)
⏱️ Timing
Total: 1270ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.139.191.230 |
| NS | 4 | ns-1169.awsdns-18.org, ns-170.awsdns-21.com... |
| SOA | 1 | ns-170.awsdns-21.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-170.awsdns-21.com, ns-170.awsdns-21.com)
Analysis
IP Addresses
sysopsguide.com points to a single IP number: 3.139.191.230.
Other host names share IP numbers with sysopsguide.com; kurtcraver.com is one such example.
Name Servers
sysopsguide.com has four authoritative name servers: ns-170.awsdns-21.com, ns-646.awsdns-16.net, ns-1169.awsdns-18.org and ns-1940.awsdns-50.co.uk.
sysopsguide.com partially shares its NS delegation with several other domains, including amtruemerit.com, aerena.gg, hoken-juku.jp and two others.
These name servers are regularly seen alongside ns-41.awsdns-05.com and ns-834.awsdns-40.net as name servers.
ns-170.awsdns-21.com, ns-646.awsdns-16.net, ns-1169.awsdns-18.org and ns-1940.awsdns-50.co.uk each carry two IP addresses. ns-170.awsdns-21.com has 205.251.192.170 and 2600:9000:5300:aa00::1; ns-646.awsdns-16.net has 205.251.194.134 and 2600:9000:5302:8600::1; ns-1169.awsdns-18.org has 205.251.196.145 and 2600:9000:5304:9100::1; ns-1940.awsdns-50.co.uk has 205.251.199.148 and 2600:9000:5307:9400::1.