yang-central.org - robtex.com
yang-central.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 109.74.6.224🇸🇪 GLESYS109.74.0.0/20 | ||||||
| PTR | 109-74-6-224-static.glesys.net | ||||||
| NS | ns1.cisco.com ⭐ | ||||||
| A | 2001:420:1101:6::a🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns1.cisco.com | ||||||
| A | 72.163.5.201🇺🇸 ASNTTCISCO72.163.0.0/18 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns1.cisco.com | ||||||
| NS | ns2.cisco.com | ||||||
| A | 2001:420:2041:5000::a🇺🇸 ASNTTCISCO2001:420:2000::/35 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns2.cisco.com | ||||||
| A | 64.102.255.44🇺🇸 ASNTTCISCO64.102.0.0/16 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns2.cisco.com | ||||||
| NS | ns3.cisco.com | ||||||
| A | 2001:420:1201:7::a🇺🇸 ASNTTCISCO2001:420:1200::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns3.cisco.com | ||||||
| A | 173.37.146.41🇺🇸 ASNTTCISCO173.37.128.0/19 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns3.cisco.com | ||||||
| SOA | ns1.cisco.compostmaster@cisco.com serial=8 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1775182469 | ||||||
Subdomains
www.yang-central.org |
Same first word
yang-central.org |
DNS History
7 records (4 active, 3 former)
○NSedns-aln1-1-l2017-02-23 → 2017-02-23 · 4 obs
● 2017-02-23 16:38:58
○ 2017-03-10 15:01:10
○ 2026-04-03 02:27:12
○NSedns-aln1-1-l.cisco.com2015-06-28 → 2016-08-18 · 4 obs
● 2016-08-18 05:50:48
○ 2017-02-23 16:38:58
○ 2026-04-03 02:27:12
○NSedns-rtp5-1-l2017-03-10 → 2017-03-10 · 4 obs
● 2017-03-10 15:01:10
○ 2019-03-17 23:33:12
○ 2026-04-03 02:27:12
●A109.74.6.2242015-06-28 → 2026-04-03 · 2 obs
● 2026-04-03 02:27:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | c0.org.afilias-nst.info, d0.org.afilias-nst.org, a0.org.afilias-nst.info, a2.org.afilias-nst.info... | - |
| yang-central.org | ns2.cisco.com, ns1.cisco.com, ns3.cisco.com | - |
✅ Authoritative Response
Server:173.37.146.41
NS records: ns2.cisco.com, ns1.cisco.com, ns3.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for yang-central.org (unsigned zone)
⏱️ Timing
Total: 429ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 109.74.6.224 |
| NS | 3 | ns3.cisco.com, ns1.cisco.com... |
| SOA | 1 | ns1.cisco.com postmaster.cisco.com |
Analysis
Hierarchy
yang-central.org is the parent of www.yang-central.org.
IP Addresses
yang-central.org resolves to a single IP: 109.74.6.224.
Other host names, for instance, 109-74-6-224-static.serverhotell.net and www.yang-central.org share IP numbers with yang-central.org.
Name Servers
yang-central.org delegates to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
yang-central.org shares some name servers with other domains, for example ciscobuy.com, ciscostadium.com, ciscotelepresence.mx, ciscopaw.com and compositecollage.com.
Host names with two IP numbers:
ns1.cisco.com: 2001:420:1101:6::a and 72.163.5.201