theoryunit.com - robtex.com
theoryunit.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a07:7800::205🇬🇧 TWENTYI2a07:7800::/48 | ||||||
| A | 185.151.30.205🇬🇧 TWENTYI185.151.30.0/24 | ||||||
| NS | ns1.stackdns.com ⭐ | ||||||
| A | 35.197.225.59🇬🇧 Google35.197.224.0/20 | ||||||
| PTR | 59.225.197.35.bc.googleusercontent.com | ||||||
| NS | ns2.stackdns.com | ||||||
| A | 146.148.28.88🇧🇪 Google146.148.16.0/20 | ||||||
| PTR | 88.28.148.146.bc.googleusercontent.com | ||||||
| NS | ns3.stackdns.com | ||||||
| A | 35.198.79.191🇩🇪 Google35.198.64.0/20 | ||||||
| PTR | 191.79.198.35.bc.googleusercontent.com | ||||||
| NS | ns4.stackdns.com | ||||||
| A | 104.196.137.209🇺🇸 Google104.196.128.0/20 | ||||||
| PTR | 209.137.196.104.bc.googleusercontent.com | ||||||
| MX | mx.stackmail.com ⭐ | ||||||
| A | 185.151.28.67🇬🇧 TWENTYI185.151.28.0/24 | ||||||
| PTR | mx.stackmail.com | ||||||
| TXT | v=spf1 include:spf.stackmail.com a mx -all | ||||||
| SOA | ns1.stackdns.comhostmaster@stackdns.com serial=1750257087 | ||||||
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=1774633287 | ||||||
Same first word
theoryunit.com |
DNS History
11 records (7 active, 4 former)
●NSns1.stackdns.com2026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
●NSns2.stackdns.com2026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
●NSns3.stackdns.com2026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
●NSns4.stackdns.com2026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
○NSultra101.uk2.net2015-05-22 → 2017-10-29 · 4 obs
● 2017-10-29 19:58:34
○ 2026-03-05 20:17:40
○ 2026-03-27 17:43:58
○NSultra102.uk2.net2015-05-22 → 2017-10-29 · 4 obs
● 2017-10-29 19:58:34
○ 2026-03-05 20:17:40
○ 2026-03-27 17:43:58
●MXmx.stackmail.com2026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
○MXmx.theoryunit.com.cust.a.hostedemail.com2015-05-22 → 2017-10-29 · 4 obs
● 2017-10-29 19:58:34
○ 2026-03-05 20:17:40
○ 2026-03-27 17:43:58
●A185.151.30.2052026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
●A2a07:7800::2052026-03-05 → 2026-03-27 · 3 obs
● 2026-03-05 20:17:40
● 2026-03-27 17:43:58
○A77.92.74.2152015-05-22 → 2017-10-29 · 4 obs
● 2017-10-29 19:58:34
○ 2026-03-05 20:17:40
○ 2026-03-27 17:43:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| theoryunit.com | ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com | 4 records |
✅ Authoritative Response
Server:35.197.225.59
NS records: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for theoryunit.com (unsigned zone)
⏱️ Timing
Total: 373ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.151.30.205 |
| AAAA | 1 | 2a07:7800::205 |
| NS | 4 | ns1.stackdns.com, ns3.stackdns.com... |
| MX | 1 | mx.stackmail.com (pri: 0) |
| TXT | 1 | v=spf1 include:spf.stackmail.com a mx -a |
| SOA | 1 | ns1.stackdns.com hostmaster.stackdns.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com...)
Analysis
IP Addresses
theoryunit.com resolves to two IPs: 2a07:7800::205 and 185.151.30.205.
other host names for instance vatsol.com, elmgrove.co.uk, yorkshiredales-cottages.com, www.weddingsabroad.com and hostmaster.keekoo.co.uk share IP numbers with theoryunit.com.
Name Servers
theoryunit.com is delegated to four name servers: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com and ns4.stackdns.com.
theoryunit.com at least partially shares name servers with other domains, for instance mwpipe.co.uk, bandel.com, brikat.co.uk, johnnieswalk.com and needluxe.com.
Host names with one IP number:
ns1.stackdns.com points to 35.197.225.59
ns2.stackdns.com points to 146.148.28.88
ns3.stackdns.com points to 35.198.79.191
ns4.stackdns.com points to 104.196.137.209
Mail Servers
theoryunit.com is handled by a single mail server, mx.stackmail.com.
theoryunit.com shares the same mail server setup as other domains, for instance ar-de.lv, icbig.org, mojoreads.com, casameadinlemn.ro and izakayatentx.com.
theoryunit.com shares some mail servers with other domains at least partially, for example sockcity.com.
Host name mx.stackmail.com points to IP address 185.151.28.67.