cornell7.net - robtex.com
cornell7.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.252.156.10🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s436.sureserver.com | ||||||
| NS | ns1.s436.sureserver.com ⭐ | ||||||
| A | 192.252.156.10🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s436.sureserver.com | ||||||
| NS | ns2.s436.sureserver.com | ||||||
| A | 192.252.157.10🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | ns2.s436.sureserver.com | ||||||
| MX | mail.cornell7.net ⭐ | ||||||
| A | 192.252.156.10🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s436.sureserver.com | ||||||
| TXT | v=spf1 a mx include:s436.smtp-spf.sureserver.com ~all | ||||||
| SOA | ns1.s436.sureserver.comhostmaster@cornell7.net serial=1774400299 | ||||||
net
| 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=1774399572 | ||||||
Subdomains
mail.cornell7.net |
hostmaster.cornell7.net |
Same first word
cornell7.net |
DNS History
6 records (4 active, 2 former)
●NSns1.s436.sureserver.com2015-06-27 → 2026-03-25 · 2 obs
● 2026-03-25 01:13:54
●NSns2.s436.sureserver.com2015-06-27 → 2026-03-25 · 2 obs
● 2026-03-25 01:13:54
●MXmail.cornell7.net2015-06-27 → 2026-03-25 · 2 obs
● 2026-03-25 01:13:54
●A192.252.156.102017-11-23 → 2026-03-25 · 3 obs
● 2017-11-23 20:52:32
● 2026-03-25 01:13:54
○A192.252.158.1422015-06-27 → 2015-06-27 · 3 obs
○ 2015-11-07 02:32:20
○ 2026-03-25 01:13:54
○A64.14.72.112015-11-07 → 2016-11-30 · 5 obs
● 2015-11-07 02:32:20
● 2016-11-30 08:13:42
○ 2017-11-23 20:52:32
○ 2026-03-25 01:13:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cornell7.net | ns1.s436.sureserver.com, ns2.s436.sureserver.com | - |
✅ Authoritative Response
Server:192.252.157.10
NS records: ns1.s436.sureserver.com, ns2.s436.sureserver.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cornell7.net (unsigned zone)
⏱️ Timing
Total: 413ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.252.156.10 |
| NS | 2 | ns1.s436.sureserver.com, ns2.s436.sureserver.com |
| MX | 1 | mail.cornell7.net (pri: 0) |
| TXT | 1 | v=spf1 a mx include:s436.smtp-spf.surese |
| SOA | 1 | ns1.s436.sureserver.com hostmaster.corne |
Analysis
Hierarchy
cornell7.net is a parent of mail.cornell7.net and hostmaster.cornell7.net.
IP Addresses
cornell7.net points to a single IP address: 192.252.156.10.
Other host names such as hostmaster.tomhoward.com, mail.conlan.eu, jkglasscompany.com, ns1.s436.sureserver.com and centurystrings.com share IP numbers with cornell7.net.
Name Servers
cornell7.net is delegated to two name servers: ns1.s436.sureserver.com and ns2.s436.sureserver.com.
cornell7.net uses the same name server setup as other domains, including fmmga.com, rosenbergha.org, minney.org, avis.aw and centurystrings.com.
Hostnames with a single IP
ns1.s436.sureserver.com resolves to: 192.252.156.10.
ns2.s436.sureserver.com resolves to: 192.252.157.10.
Mail Servers
The mail server for cornell7.net is mail.cornell7.net.
Host mail.cornell7.net points to IP 192.252.156.10.