fourzero.app - dns.ninja
fourzero.app
app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427 | ||||||
🔒 HSTS Preload (+subdomains)
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
●NSns-cloud-b1.googledomains.com2026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●NSns-cloud-b2.googledomains.com2026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●NSns-cloud-b3.googledomains.com2026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●NSns-cloud-b4.googledomains.com2026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●MXmxa.mailgun.org2026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●MXmxb.mailgun.org2026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●A151.101.1.1952026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
●A151.101.65.1952026-08-14 → 2026-08-16 · 2 obs
● 2026-08-16 09:55:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| app | ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com... | - |
| fourzero.app | ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b4.googledomains.com | - |
✅ Authoritative Response
Server:216.239.34.107
NS records: ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b4.googledomains.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 626ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 151.101.1.195, 151.101.65.195 |
| NS | 4 | ns-cloud-b1.googledomains.com, ns-cloud-b3.googledomains.com... |
| MX | 2 | mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10) |
| TXT | 1 | v=spf1 include:mailgun.org ~all |
| SOA | 1 | ns-cloud-b1.googledomains.com cloud-dns- |
Analysis
IP Addresses
fourzero.app points to the IP addresses 151.101.1.195 and 151.101.65.195
semkin.ru, cloudinfra.co, shruthiaravindan.com and two other host names share IP numbers with fourzero.app.
Name Servers
The authoritative name servers for fourzero.app are ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com and ns-cloud-b4.googledomains.com.
At least some of fourzero.app's name servers are shared with other domains, for example swifttechbuy.com, firstchoiceofpromotion.com, bigmansales.com and two more.
Four hostnames, each resolving to a pair of IP addresses: ns-cloud-b1.googledomains.com directs to 216.239.32.107 and 2001:4860:4802:32::6b; ns-cloud-b2.googledomains.com directs to 216.239.34.107 and 2001:4860:4802:34::6b; ns-cloud-b3.googledomains.com directs to 216.239.36.107 and 2001:4860:4802:36::6b; ns-cloud-b4.googledomains.com directs to 216.239.38.107 and 2001:4860:4802:38::6b.
Mail Servers
Mail for fourzero.app is handled by two mail servers — mxa.mailgun.org and mxb.mailgun.org.
fourzero.app uses an identical mail server configuration to several other domains — among them jeffslone.com, essimoon.com, mail.davidlabrador.com and two more.
fourzero.app has at least partial mail server overlap with other domains such as sditservice.com, writercabin.com, php1.teamsnap.com and two more.
It is common to see these mail servers combined with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
Each of mxa.mailgun.org and mxb.mailgun.org points to exactly one IP address: 34.149.254.5.
mxa.mailgun.org and mxb.mailgun.org each have 34.149.254.5 IP addresses.