us4dev.com - dns.ninja
us4dev.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 78.128.76.240🇧🇬 TELEHOUSE-AS78.128.76.0/24 NS1 | ||||||
| PTR | dunav.ns1.bg | ||||||
| NS | ns1.gotobg.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 78.142.63.190🇧🇬 TELEHOUSE-AS78.142.63.0/24 NS1 | ||||||
| PTR | primary.vivawebhost.com | ||||||
| NS | ns2.gotobg.net ⚠️ Not in parent delegation | ||||||
| A | 173.237.190.226🇺🇸 TierPoint173.237.190.0/24 | ||||||
| PTR | secondary.vivawebhost.com | ||||||
| NS | ns3.gotobg.net | ||||||
| A | 79.124.76.2🇧🇬 TELEHOUSE-AS79.124.76.0/24 NS1 | ||||||
| PTR | ns3.gotobg.net | ||||||
| NS | ns4.gotobg.net | ||||||
| A | 79.124.76.3🇧🇬 TELEHOUSE-AS79.124.76.0/24 NS1 | ||||||
| PTR | ns4.gotobg.net | ||||||
| MX | us4dev.com ⭐ | ||||||
| A | 78.128.76.240🇧🇬 TELEHOUSE-AS78.128.76.0/24 NS1 | ||||||
| PTR | dunav.ns1.bg | ||||||
| TXT | v=spf1 ip4:78.142.63.48 ip4:78.128.8.240 ip4:78.128.43.110 ip4:78.142.63.9 +a... | ||||||
| SOA | ns1.gotobg.netnoc@gotobg.net 2026-08-26 #0 | ||||||
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=1787706830 | ||||||
MX for
us4dev.com |
Same first word
us4dev.com |
Similar names
Previous names
us4c.com |
us4canada.com |
us4cc.com |
us4ce.com |
us4cesocie.com |
us4children.com |
us4china.com |
us4christ.com |
us4closures.com |
us4cs.com |
us4ct.com |
us4d.com |
us4desh.com |
us4design.com |
Next names
us4e.com |
us4education.com |
us4ever.com |
us4evr.com |
us4fitness.com |
us4free.com |
us4game.com |
us4ge.com |
us4gm.com |
us4goods.com |
us4h.com |
us4health.com |
us4help.com |
us4hemp.com |
us4hillary.com |
us4him.com |
DNS History
7 records (6 active, 1 former)
●NSns1.gotobg.net2026-02-26 → 2026-08-26 · 3 obs
● 2026-02-26 01:45:28
● 2026-08-26 01:42:36
●NSns2.gotobg.net2026-02-26 → 2026-08-26 · 3 obs
● 2026-02-26 01:45:28
● 2026-08-26 01:42:36
●NSns3.gotobg.net2016-12-15 → 2026-08-26 · 2 obs
● 2026-08-26 01:42:36
●NSns4.gotobg.net2016-12-15 → 2026-08-26 · 2 obs
● 2026-08-26 01:42:36
●MXus4dev.com2016-12-15 → 2026-08-26 · 2 obs
● 2026-08-26 01:42:36
●A78.128.76.2402026-02-26 → 2026-08-26 · 3 obs
● 2026-02-26 01:45:28
● 2026-08-26 01:42:36
○A79.124.76.202016-12-15 → 2017-07-01 · 4 obs
● 2017-07-01 01:43:22
○ 2026-02-26 01:45:28
○ 2026-08-26 01:42:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net... | - |
| us4dev.com | ns3.gotobg.net, ns4.gotobg.net | - |
✅ Authoritative Response
Server:79.124.76.2
NS records: ns3.gotobg.net, ns4.gotobg.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for us4dev.com (unsigned zone)
⏱️ Timing
Total: 1752ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 78.128.76.240 |
| NS | 4 | ns3.gotobg.net, ns1.gotobg.net... |
| MX | 1 | us4dev.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:78.142.63.48 ip4:78.128.8.240 |
| SOA | 1 | ns1.gotobg.net noc.gotobg.net |
Analysis
Mail Server Role
us4dev.com handles its own mail, functioning as its own mail server.
IP Addresses
us4dev.com resolves to just one IP address, 78.128.76.240.
Two other host names, along with dentaround.com, www.o-connect.com and ivalambova.com, also share IP numbers with us4dev.com.
Name Servers
The NS records for us4dev.com point to four name servers: ns1.gotobg.net, ns2.gotobg.net, ns3.gotobg.net and ns4.gotobg.net.
us4dev.com shares at least some of its name servers with other domains, including comcomputerbg.com, skygym.bg, bet-bg.eu and two others.
These name servers are frequently paired with the name servers ns5.gotobg.net and ns6.gotobg.net.
The hosts ns1.gotobg.net, ns2.gotobg.net, ns3.gotobg.net and ns4.gotobg.net all resolve to exactly one IP address each: 78.142.63.190, 173.237.190.226, 79.124.76.2 and 79.124.76.3 respectively.
Mail Servers
us4dev.com is served by just one mail server: us4dev.com.
us4dev.com directs to just one IP number, 78.128.76.240.