optfirst.us - dns.ninja
optfirst.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.254.244.131🇺🇸 IONOS-AS104.254.244.0/22 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | mail.batterysales.com | ||||||
| NS | pdns03.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21f0::33🇺🇸 GODADDY-DNS2603:5:21f0::/44 | ||||||
| PTR | pdns03.domaincontrol.com | ||||||
| A | 97.74.111.51🇺🇸 GODADDY-DNS97.74.110.0/23 | ||||||
| PTR | pdns03.domaincontrol.com | ||||||
| NS | pdns04.domaincontrol.com | ||||||
| A | 2603:5:22f0::33🇺🇸 GODADDY-DNS2603:5:22f0::/44 | ||||||
| PTR | pdns04.domaincontrol.com | ||||||
| A | 173.201.79.51🇺🇸 GODADDY-DNS173.201.78.0/23 | ||||||
| PTR | pdns04.domaincontrol.com | ||||||
| MX | mail.optfirst.us ⭐ | ||||||
| A | 104.254.244.131🇺🇸 IONOS-AS104.254.244.0/22 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | mail.batterysales.com | ||||||
| TXT | v=spf1mx ~all | ||||||
| SOA | pdns03.domaincontrol.comdns@jomax.net 2020-05-03 #0 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1783151246 | ||||||
Subdomains
mail.optfirst.us |
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
●NSpdns03.domaincontrol.com2015-08-07 → 2026-07-04 · 2 obs
● 2026-07-04 08:31:24
●NSpdns04.domaincontrol.com2015-08-07 → 2026-07-04 · 2 obs
● 2026-07-04 08:31:24
●MXmail.optfirst.us2026-06-12 → 2026-07-04 · 3 obs
● 2026-06-12 05:43:34
● 2026-07-04 08:31:24
○MXmailstore1.secureserver.net2015-08-07 → 2016-11-19 · 4 obs
● 2016-11-19 06:07:40
○ 2026-06-12 05:43:34
○ 2026-07-04 08:31:24
○MXsmtp.secureserver.net2015-08-07 → 2016-11-19 · 4 obs
● 2016-11-19 06:07:40
○ 2026-06-12 05:43:34
○ 2026-07-04 08:31:24
●A104.254.244.1312026-06-12 → 2026-07-04 · 3 obs
● 2026-06-12 05:43:34
● 2026-07-04 08:31:24
○A184.168.221.192015-08-07 → 2016-11-19 · 4 obs
● 2016-11-19 06:07:40
○ 2026-06-12 05:43:34
○ 2026-07-04 08:31:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| optfirst.us | pdns03.domaincontrol.com, pdns04.domaincontrol.com | - |
✅ Authoritative Response
Server:97.74.111.51
NS records: pdns03.domaincontrol.com, pdns04.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optfirst.us (unsigned zone)
⏱️ Timing
Total: 275ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 104.254.244.131 |
| NS | 2 | pdns03.domaincontrol.com, pdns04.domaincontrol.com |
| MX | 1 | mail.optfirst.us (pri: 10) |
| TXT | 1 | v=spf1mx ~all |
| SOA | 1 | pdns03.domaincontrol.com dns.jomax.net |
Analysis
Hierarchy
mail.optfirst.us is a subdomain of optfirst.us.
IP Addresses
optfirst.us directs to one IP number, which is 104.254.244.131.
mail.batterysales.com and mail.optfirst.us are among other host names that share IP numbers with optfirst.us.
Name Servers
The NS records for optfirst.us delegate to pdns03.domaincontrol.com and pdns04.domaincontrol.com.
optfirst.us has the same name server delegation as a number of other domains, such as culturaveracruz.gob.mx, ambitionbeverages.com, askunix.com and two more.
There is an overlap in name servers between optfirst.us and other domains, for example chungtien.com.hk, talf.asia and sharmagroup.com
pdns03.domaincontrol.com resolves to 97.74.111.51 and 2603:5:21f0::33. Likewise, pdns04.domaincontrol.com resolves to 173.201.79.51 and 2603:5:22f0::33 — two IP addresses apiece.
Mail Servers
optfirst.us routes its mail through a single mail server, mail.optfirst.us.
mail.optfirst.us resolves to 104.254.244.131 and no other IP number.