custfirst.com - robtex.com
custfirst.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 98.103.212.215🇺🇸 RR-Star_Communications_LLC98.103.192.0/18 RR-Route | ||||||
| PTR | syn-098-103-212-215.biz.spectrum.com | ||||||
| NS | ns83.worldnic.com ⭐ | ||||||
| A | 162.159.26.131Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns84.worldnic.com | ||||||
| A | 162.159.27.117Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | rti-sofware.com.pri-mx.na0100.smtproutes.com ⭐ | ||||||
| MX | custfirst.com.bak-mx.na0100.smtpbak.com(90) | ||||||
| SOA | NS83.WORLDNIC.comnamehost@WORLDNIC.com serial=120030713 | ||||||
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=1771291435 | ||||||
Same first word
custfirst.com |
Similar names
DNS History
11 records (5 active, 6 former)
○NSns1.sungardns.com2015-05-11 → 2016-11-27 · 4 obs
● 2016-11-27 14:39:26
○ 2026-03-12 07:40:34
○ 2026-03-12 07:40:36
○NSns2.sungardns.com2015-05-11 → 2016-11-27 · 4 obs
● 2016-11-27 14:39:26
○ 2026-03-12 07:40:34
○ 2026-03-12 07:40:36
○NSns3.sungardns.com2015-05-11 → 2016-11-27 · 4 obs
● 2016-11-27 14:39:26
○ 2026-03-12 07:40:34
○ 2026-03-12 07:40:36
●NSns83.worldnic.com2026-03-12 → 2026-03-12 · 3 obs
● 2026-03-12 07:40:34
● 2026-03-12 07:40:36
●NSns84.worldnic.com2026-03-12 → 2026-03-12 · 3 obs
● 2026-03-12 07:40:34
● 2026-03-12 07:40:36
●MXcustfirst.com.bak-mx.na0100.smtpbak.com2015-05-11 → 2026-03-12 · 2 obs
● 2026-03-12 07:40:36
○MXcustfirst.com.pri-mx.na0100.smtproutes.com2015-05-11 → 2016-11-27 · 4 obs
● 2016-11-27 14:39:26
○ 2026-03-12 07:40:34
○ 2026-03-12 07:40:36
●MXrti-sofware.com.pri-mx.na0100.smtproutes.com2026-03-12 → 2026-03-12 · 3 obs
● 2026-03-12 07:40:34
● 2026-03-12 07:40:36
○A216.245.178.982015-09-24 → 2016-11-27 · 5 obs
● 2015-09-24 04:42:18
● 2016-11-27 14:39:26
○ 2026-03-12 07:40:34
○ 2026-03-12 07:40:36
○A67.202.233.1022015-05-11 → 2015-05-11 · 3 obs
○ 2015-09-24 04:42:18
○ 2026-03-12 07:40:36
●A98.103.212.2152026-03-12 → 2026-03-12 · 3 obs
● 2026-03-12 07:40:34
● 2026-03-12 07:40:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| custfirst.com | ns83.worldnic.com, ns84.worldnic.com | 2 records |
✅ Authoritative Response
Server: 162.159.26.131
NS records: ns83.worldnic.com, ns84.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for custfirst.com (unsigned zone)
⏱️ Timing
Total: 351ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 98.103.212.215 |
| NS | 2 | ns83.worldnic.com, ns84.worldnic.com |
| MX | 2 | custfirst.com.bak-mx.na0100.smtpbak.com , rti-sofware.com.pri-mx.na0100.smtproutes |
| SOA | 1 | NS83.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns83.worldnic.com, ns84.worldnic.com)
Analysis
IP Addresses
custfirst.com points to a single IP address: 98.103.212.215.
Other host names such as syn-098-103-212-215.biz.spectrum.com, rti-software.com and www.rti-software.com share IP numbers with custfirst.com.
Name Servers
custfirst.com is delegated to two name servers: ns83.worldnic.com and ns84.worldnic.com.
custfirst.com uses the same name server setup as other domains, including larsuniversity.com, kands.com, admiralexpress.com, christmashardware.com and amdurlaw.com.
custfirst.com shares name servers with other domains, at least partially; for example aucklandnewschannel.com and madisonavenuebid.org.
Hostnames with a single IP
ns83.worldnic.com resolves to: 162.159.26.131.
ns84.worldnic.com resolves to: 162.159.27.117.
Mail Servers
custfirst.com is handled by two mail servers: custfirst.com.bak-mx.na0100.smtpbak.com and rti-sofware.com.pri-mx.na0100.smtproutes.com.