caltechlabs.com - robtex.com
caltechlabs.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 72.167.38.143🇺🇸 AS39810172.167.32.0/20 | ||||||
| PTR | 143.38.167.72.host.secureserver.net | ||||||
| NS | ns1.caltechlabs.com ⭐ | ||||||
| A | 72.167.38.143🇺🇸 AS39810172.167.32.0/20 | ||||||
| PTR | 143.38.167.72.host.secureserver.net | ||||||
| NS | ns2.caltechlabs.com | ||||||
| A | 72.167.38.143🇺🇸 AS39810172.167.32.0/20 | ||||||
| PTR | 143.38.167.72.host.secureserver.net | ||||||
| MX | caltechlabs.com ⭐ | ||||||
| A | 72.167.38.143🇺🇸 AS39810172.167.32.0/20 | ||||||
| PTR | 143.38.167.72.host.secureserver.net | ||||||
| TXT | v=spf1 +a +mx +ip4:72.167.38.143 include:secureserver.net ~all | ||||||
| SOA | ns1.caltechlabs.comroot@ip-72-167-38-143.ip.secureserver.net 2026-01-27 #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=1771291435 | ||||||
MX for
caltechlabs.com |
Subdomains
Same first word
caltechlabs.com |
DNS History
9 records (4 active, 5 former)
○NSns0.directnic.com2015-07-24 → 2016-06-23 · 4 obs
● 2016-06-23 11:59:30
○ 2017-03-24 09:08:22
○ 2026-03-24 00:05:50
●NSns1.caltechlabs.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 00:05:46
● 2026-03-24 00:05:50
○NSns1.directnic.com2015-07-24 → 2016-06-23 · 4 obs
● 2016-06-23 11:59:30
○ 2017-03-24 09:08:22
○ 2026-03-24 00:05:50
●NSns2.caltechlabs.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 00:05:46
● 2026-03-24 00:05:50
●MXcaltechlabs.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 00:05:46
● 2026-03-24 00:05:50
○MXweb224.dnchosting.com2015-07-24 → 2016-06-23 · 4 obs
● 2016-06-23 11:59:30
○ 2017-03-24 09:08:22
○ 2026-03-24 00:05:50
○A::ffff:4a75:dd0b2015-07-24 → 2016-06-23 · 4 obs
● 2016-06-23 11:59:30
○ 2017-03-24 09:08:22
○ 2026-03-24 00:05:50
●A72.167.38.1432026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 00:05:46
● 2026-03-24 00:05:50
○A74.117.221.112015-07-24 → 2016-06-23 · 4 obs
● 2016-06-23 11:59:30
○ 2017-03-24 09:08:22
○ 2026-03-24 00:05:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| caltechlabs.com | ns1.caltechlabs.com, ns2.caltechlabs.com | 2 records |
✅ Authoritative Response
Server:72.167.38.143
NS records: ns1.caltechlabs.com, ns2.caltechlabs.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for caltechlabs.com (unsigned zone)
⏱️ Timing
Total: 523ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.167.38.143 |
| NS | 2 | ns2.caltechlabs.com, ns1.caltechlabs.com |
| MX | 1 | caltechlabs.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:72.167.38.143 include |
| SOA | 1 | ns1.caltechlabs.com root.ip-72-167-38-14 |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.caltechlabs.com, ns2.caltechlabs.com)
Analysis
Hierarchy
caltechlabs.com is a parent of ns1.caltechlabs.com, cal.caltechlabs.com and ns2.caltechlabs.com.
Mail Server Role
caltechlabs.com serves as the mail server for caltechlabs.com.
IP Addresses
caltechlabs.com points to a single IP number: 72.167.38.143.
Other host names, for instance ns1.caltechlabs.com, ns2.m4match.com, depaulthodupuzha.ac.in, m4match.com and 143.38.167.72.host.secureserver.net share IP numbers with caltechlabs.com.
Name Servers
Delegation for caltechlabs.com rests with two name servers, ns1.caltechlabs.com and ns2.caltechlabs.com.
caltechlabs.com shares the same name server setup as other domains, for example depaulthodupuzha.ac.in.
Host names sharing a single IP:
ns1.caltechlabs.com points to 72.167.38.143
ns2.caltechlabs.com points to 72.167.38.143
Host names that point to 72.167.38.143: ns1.caltechlabs.com and ns2.caltechlabs.com
Mail Servers
A single mail server handles caltechlabs.com.
caltechlabs.com points to a single IP: 72.167.38.143.