masstheory.org - robtex.com
masstheory.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 167.235.88.219🇩🇪 Hetzner167.235.0.0/16 HETZNER-DC | ||||||
| PTR | host121.dwhost.net | ||||||
| NS | dns1.dwhost.net ⭐ | ||||||
| A | 85.159.213.38🇬🇧 AKAMAI-LINODE-AP85.159.208.0/21 Akamai Technologies | ||||||
| PTR | dns1.dwhost.net | ||||||
| NS | dns2.dwhost.net | ||||||
| A | 94.237.111.102🇳🇱 UPCLOUD94.237.108.0/22 -NL-AMS1-NET | ||||||
| PTR | dns2.dwhost.net | ||||||
| NS | dns3.dwhost.net | ||||||
| A | 162.55.68.152🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | dns3.dwhost.net | ||||||
| MX | mail.masstheory.org ⭐ | ||||||
| A | 167.235.88.219🇩🇪 Hetzner167.235.0.0/16 HETZNER-DC | ||||||
| PTR | host121.dwhost.net | ||||||
| TXT | v=spf1 ip4:167.235.88.219 +a +mx +ip4:94.130.23.82 ~all | ||||||
| SOA | dns1.dwhost.netadmin@dreamweb.rs 2026-04-03 #1 | ||||||
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=1777460816 | ||||||
Subdomains
Same first word
masstheory.org |
Similar names
DNS History
9 records (5 active, 4 former)
●NSdns1.dwhost.net2026-03-14 → 2026-04-29 · 3 obs
● 2026-03-14 14:30:30
● 2026-04-29 11:21:42
○NSdns1.eunethosting.com2015-08-14 → 2016-09-15 · 4 obs
● 2016-09-15 03:12:58
○ 2026-03-14 14:30:30
○ 2026-04-29 11:21:42
●NSdns2.dwhost.net2026-03-14 → 2026-04-29 · 3 obs
● 2026-03-14 14:30:30
● 2026-04-29 11:21:42
○NSdns2.eunethosting.com2015-08-14 → 2016-09-15 · 4 obs
● 2016-09-15 03:12:58
○ 2026-03-14 14:30:30
○ 2026-04-29 11:21:42
●NSdns3.dwhost.net2026-03-14 → 2026-04-29 · 3 obs
● 2026-03-14 14:30:30
● 2026-04-29 11:21:42
●MXmail.masstheory.org2026-03-14 → 2026-04-29 · 3 obs
● 2026-03-14 14:30:30
● 2026-04-29 11:21:42
○MXwww.masstheory.org2015-08-14 → 2016-09-15 · 4 obs
● 2016-09-15 03:12:58
○ 2026-03-14 14:30:30
○ 2026-04-29 11:21:42
●A167.235.88.2192026-03-14 → 2026-04-29 · 3 obs
● 2026-03-14 14:30:30
● 2026-04-29 11:21:42
○A213.137.115.1232015-08-14 → 2016-09-15 · 4 obs
● 2016-09-15 03:12:58
○ 2026-03-14 14:30:30
○ 2026-04-29 11:21:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| masstheory.org | dns2.dwhost.net, dns3.dwhost.net, dns1.dwhost.net | - |
✅ Authoritative Response
Server:162.55.68.152
NS records: dns2.dwhost.net, dns3.dwhost.net, dns1.dwhost.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for masstheory.org (unsigned zone)
⏱️ Timing
Total: 697ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 167.235.88.219 |
| NS | 3 | dns2.dwhost.net, dns3.dwhost.net... |
| MX | 1 | mail.masstheory.org (pri: 0) |
| TXT | 1 | v=spf1 ip4:167.235.88.219 +a +mx +ip4:94 |
| SOA | 1 | dns1.dwhost.net admin.dreamweb.rs |
Analysis
Hierarchy
masstheory.org is parent of www.masstheory.org and mail.masstheory.org.
IP Addresses
masstheory.org resolves to a single IP address: 167.235.88.219.
Other host names including beca.rs, digital030.com, mail.hotman.rs, sokobanja.info and mail.pazari.rs share IP numbers with masstheory.org.
Name Servers
masstheory.org is delegated to three name servers: dns1.dwhost.net, dns2.dwhost.net and dns3.dwhost.net.
masstheory.org at least partially shares name servers with other domains, including talijadekoracije.com, klimabgsolutions.com, muzikasfera.com, radista.info and idemonaput.rs.
These name servers are commonly used with ns1.dwhost.net and ns2.dwhost.net.
Hostnames with a single IP:
dns1.dwhost.net points to: 85.159.213.38.
dns2.dwhost.net points to: 94.237.111.102.
dns3.dwhost.net points to: 162.55.68.152.
Mail Servers
masstheory.org is handled by a single mail server, mail.masstheory.org.
mail.masstheory.org points to a single IP: 167.235.88.219.