isubteach.com - robtex.com
isubteach.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns51.1and1.com ⚠️ Not in zone NS records | ||||||
| A | 2001:8d8:fe:53:0:d9a0:501e:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | ns1030.ui-dns.de | ||||||
| A | 217.160.80.30🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | ns1030.ui-dns.de | ||||||
| NS | ns52.1and1.com ⚠️ Not in zone NS records | ||||||
| A | 2001:8d8:fe:53:0:d9a0:511d:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | ns1029.ui-dns.biz | ||||||
| A | 217.160.81.29🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | ns1029.ui-dns.biz | ||||||
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=1778371487 | ||||||
Same first word
isubteach.com |
Similar names
DNS History
5 records (2 active, 3 former)
○NSns79.worldnic.com2007-11-14 → 2007-11-14 · 3 obs
○ 2015-06-05 04:23:20
○ 2026-05-10 00:07:16
○NSns80.worldnic.com2007-11-14 → 2007-11-14 · 3 obs
○ 2015-06-05 04:23:20
○ 2026-05-10 00:07:16
○A129.123.64.462007-11-14 → 2007-11-14 · 3 obs
○ 2015-06-05 04:23:20
○ 2026-05-10 00:07:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| isubteach.com | ns51.1and1.com, ns52.1and1.com | 4 records |
✅ Authoritative Response
Server:217.160.81.29
NS records: ns51.1and1.com, ns52.1and1.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for isubteach.com (unsigned zone)
⏱️ Timing
Total: 118ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns51.1and1.com, ns51.1and1.com, ns52.1and1.com...)
Analysis
Name Servers
isubteach.com is delegated to two name servers ns51.1and1.com and ns52.1and1.com.
isubteach.com shares the same name server setup as other domains, for instance systematicmaintenance.com, agouraanimalhospital.com, gpwest.com, tzurel.co.il and iamboo.com.
isubteach.com at least partially shares name servers with other domains, for instance distributorusa.com, lawperiscope.com, newhorizonkennel.com, stoneicon.com and mostotech.com.
these name servers are often used together with ns1045.ui-dns.biz, ns1045.ui-dns.com, ns1045.ui-dns.de and ns1045.ui-dns.org.
Host names with two IP numbers:
The host name ns51.1and1.com points to 2001:8d8:fe:53:0:d9a0:501e:100 and 217.160.80.30; the host name ns52.1and1.com points to 2001:8d8:fe:53:0:d9a0:511d:100 and 217.160.81.29.