us4dev.com - robtex.com
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 2026-03-26 #3 | ||||||
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=1774520582 | ||||||
MX for
us4dev.com |
Same first word
us4dev.com |
DNS History
7 records (6 active, 1 former)
●NSns1.gotobg.net2026-02-26 → 2026-03-26 · 3 obs
● 2026-02-26 01:45:28
● 2026-03-26 10:52:18
●NSns2.gotobg.net2026-02-26 → 2026-03-26 · 3 obs
● 2026-02-26 01:45:28
● 2026-03-26 10:52:18
●NSns3.gotobg.net2016-12-15 → 2026-03-26 · 2 obs
● 2026-03-26 10:52:18
●NSns4.gotobg.net2016-12-15 → 2026-03-26 · 2 obs
● 2026-03-26 10:52:18
●MXus4dev.com2016-12-15 → 2026-03-26 · 2 obs
● 2026-03-26 10:52:18
●A78.128.76.2402026-02-26 → 2026-03-26 · 3 obs
● 2026-02-26 01:45:28
● 2026-03-26 10:52:18
○A79.124.76.202016-12-15 → 2017-07-01 · 4 obs
● 2017-07-01 01:43:22
○ 2026-02-26 01:45:28
○ 2026-03-26 10:52:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.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: 743ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 78.128.76.240 |
| NS | 4 | ns2.gotobg.net, ns4.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
For us4dev.com, the mail server is us4dev.com.
IP Addresses
us4dev.com points to a single IP number: 78.128.76.240.
other host names for instance dentaround.com, ivalambova.com, euro-target.com, o-connect.com and imap.o-connect.com share IP numbers with us4dev.com.
Name Servers
us4dev.com is delegated to four name servers: ns1.gotobg.net, ns2.gotobg.net, ns3.gotobg.net and ns4.gotobg.net.
us4dev.com at least partially shares name servers with other domains, for instance comcomputerbg.com, bet-bg.eu, d-dev.net, hotelhissar.com and lookmeshop.com.
Host names with one IP number:
ns1.gotobg.net points to 78.142.63.190
ns2.gotobg.net points to 173.237.190.226
ns3.gotobg.net points to 79.124.76.2
ns4.gotobg.net points to 79.124.76.3
Mail Servers
One mail server handles us4dev.com.
Host name us4dev.com points to IP address 78.128.76.240.