optappbid.com - robtex.com
optappbid.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.243.5🇺🇸 Amazon13.248.240.0/20 | ||||||
| PTR | a16e665f42988324c.awsglobalaccelerator.com | ||||||
| A | 76.223.105.230🇺🇸 Amazon76.223.96.0/20 | ||||||
| NS | ns37.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21c1::13🇺🇸 GODADDY-DNS2603:5:21c0::/44 | ||||||
| PTR | ns37.domaincontrol.com | ||||||
| A | 97.74.108.19🇺🇸 GODADDY-DNS97.74.108.0/23 | ||||||
| PTR | ns37.domaincontrol.com | ||||||
| NS | ns38.domaincontrol.com | ||||||
| A | 2603:5:22c1::13🇺🇸 GODADDY-DNS2603:5:22c0::/44 | ||||||
| PTR | ns38.domaincontrol.com | ||||||
| A | 173.201.76.19🇺🇸 GODADDY-DNS173.201.76.0/23 | ||||||
| PTR | ns38.domaincontrol.com | ||||||
| MX | mxa.mailgun.org ⭐ | ||||||
| A | 34.160.13.42🇺🇸 Google34.160.0.0/16 | ||||||
| PTR | 42.13.160.34.bc.googleusercontent.com | ||||||
| MX | mxb.mailgun.org ⭐ | ||||||
| A | 34.160.157.95🇺🇸 Google34.160.0.0/16 | ||||||
| PTR | 95.157.160.34.bc.googleusercontent.com | ||||||
| TXT | v=spf1 include:mailgun.org ~all | ||||||
| SOA | ns37.domaincontrol.comdns@jomax.net 2026-04-08 #1 | ||||||
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=1775983122 | ||||||
Subdomains
rtb.optappbid.com |
Same first word
optappbid.com |
DNS History
6 records (6 active, 0 former)
●NSns37.domaincontrol.com2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-12 09:00:22
●NSns38.domaincontrol.com2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-12 09:00:22
●MXmxa.mailgun.org2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-12 09:00:22
●MXmxb.mailgun.org2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-12 09:00:22
●A13.248.243.52026-04-11 → 2026-04-12 · 2 obs
● 2026-04-12 09:00:22
●A76.223.105.2302026-04-11 → 2026-04-12 · 2 obs
● 2026-04-12 09:00:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| optappbid.com | ns37.domaincontrol.com, ns38.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.76.19
NS records: ns37.domaincontrol.com, ns38.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optappbid.com (unsigned zone)
⏱️ Timing
Total: 78ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.105.230, 13.248.243.5 |
| NS | 2 | ns37.domaincontrol.com, ns38.domaincontrol.com |
| MX | 2 | mxa.mailgun.org (pri: 60), mxb.mailgun.org (pri: 60) |
| TXT | 1 | v=spf1 include:mailgun.org ~all |
| SOA | 1 | ns37.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns37.domaincontrol.com, ns37.domaincontrol.com, ns38.domaincontrol.com...)
Analysis
Hierarchy
The parent of rtb.optappbid.com is optappbid.com.
IP Addresses
optappbid.com points to two IP numbers: 13.248.243.5 and 76.223.105.230.
Other host names such as rjengineering.net, trend-it.net, traveldolphins.com, resortscollective.com and sylvialegal.com share IPs with optappbid.com.
Name Servers
optappbid.com is delegated to two name servers: ns37.domaincontrol.com and ns38.domaincontrol.com.
optappbid.com shares the same name server setup as callitfootball.net, terraincreator.com, buckheadurogynecology.com, symbolberlin.com and greentailshop.com.
Host names with two IP numbers: ns37.domaincontrol.com points to: 2603:5:21c1::13 and 97.74.108.19; ns38.domaincontrol.com points to: 2603:5:22c1::13 and 173.201.76.19.
Mail Servers
optappbid.com is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.
The mail server setup for optappbid.com matches that of other domains, for instance lynxinbio.com, stephenlucas.com, s.justkiss.com, damauction.com and cfdi-servicios.com.
optappbid.com shares at least partially some mail servers with other domains, including maltrak.com, antry.co.jp, adult-block.com, bmwandminibwir.com and quickbookstraining.com.
these mail servers are often used with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
Host names with a single IP:
mxa.mailgun.org points to 34.160.13.42.
mxb.mailgun.org points to 34.160.157.95.