rpcbuilders.com - dns.ninja

rpcbuilders.com

DNSSEC⚠️ Not signed
A208.100.27.56🇺🇸 STEADFAST208.100.0.0/18 725 S Wells St 8th Floor Chicago IL 60607 United States
PTRmail10.firepixel.com
NSns10.firepixel.com
A50.31.101.230🇺🇸 STEADFAST50.31.64.0/18 725 S Wells St 8th Floor Chicago IL 60607 United States
PTRmail10.firepixel.com
A208.100.27.56🇺🇸 STEADFAST208.100.0.0/18 725 S Wells St 8th Floor Chicago IL 60607 United States
PTRmail10.firepixel.com
NSns11.firepixel.com
A50.31.0.189🇺🇸 HIVELOCITY-150.31.0.0/19 725 S Wells St 8th Floor Chicago IL 60607 United States
PTRip189.50-31-0.static.steadfastdns.net
MXrpcbuilders-com.mail.protection.outlook.com
A2a01:111:f403:c802::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-cy4pr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:c936::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-cy1pr05cu00400.inbound.protection.outlook.com
A2a01:111:f403:c946::2🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-ch4pr04cu00102.inbound.protection.outlook.com
A2a01:111:f403:f902::1🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-bl2pr02cu00101.inbound.protection.outlook.com
A40.93.192.1🇺🇸 Microsoft40.80.0.0/12
PTRmail-dm5pr02cu00201.inbound.protection.outlook.com
A52.101.10.14🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-bn6pr04cu00206.inbound.protection.outlook.com
A52.101.40.0🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy5pr03cu00300.inbound.protection.outlook.com
A52.101.41.28🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj0pr03cu01504.inbound.protection.outlook.com
TXTMS=ms96982449
TXTv=spf1 include:spf.protection.outlook.com +a +mx +ip4:50.31.101.230 +ip4:208....
SOAns10.firepixel.comtony@firepixel.com 2026-07-23 #1

com

Subdomains

Same first word

DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026NSns10.firepixel.comns11.firepixel.comMXrpcbuilders-com.mail.protection.outlook.coma.spamfilter.steadfast.netb.spamfilter.steadfast.netmail.rpcbuilders.comA208.100.27.56
NSns10.firepixel.com2015-06-01 → 2026-08-12 · 2 obs
● 2015-06-01 18:20:56
● 2026-08-12 18:18:28
NSns11.firepixel.com2015-06-01 → 2026-08-12 · 2 obs
● 2015-06-01 18:20:56
● 2026-08-12 18:18:28
MXa.spamfilter.steadfast.net2017-01-29 → 2019-01-13 · 5 obs
○ 2016-04-22 03:55:04
● 2017-01-29 13:33:20
● 2019-01-13 21:02:42
○ 2026-03-14 19:26:02
○ 2026-08-12 18:18:28
MXb.spamfilter.steadfast.net2017-01-29 → 2019-01-13 · 5 obs
○ 2016-04-22 03:55:04
● 2017-01-29 13:33:20
● 2019-01-13 21:02:42
○ 2026-03-14 19:26:02
○ 2026-08-12 18:18:28
MXmail.rpcbuilders.com2015-06-01 → 2016-04-22 · 4 obs
● 2015-06-01 18:20:56
● 2016-04-22 03:55:04
○ 2017-01-29 13:33:20
○ 2026-08-12 18:18:28
MXrpcbuilders-com.mail.protection.outlook.com2026-03-14 → 2026-08-12 · 3 obs
○ 2019-01-13 21:02:42
● 2026-03-14 19:26:02
● 2026-08-12 18:18:28
A208.100.27.562015-06-01 → 2026-08-12 · 2 obs
● 2015-06-01 18:20:56
● 2026-08-12 18:18:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net...-
rpcbuilders.comns10.firepixel.com, ns11.firepixel.com2 records

✅ Authoritative Response

Server:50.31.0.189

NS records: ns10.firepixel.com, ns11.firepixel.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rpcbuilders.com (unsigned zone)

⏱️ Timing

Total: 195ms | Queries: -

📄 Records

TypeCountSample Data
A1208.100.27.56
NS2ns11.firepixel.com, ns10.firepixel.com
MX1rpcbuilders-com.mail.protection.outlook.
TXT2MS=ms96982449, v=spf1 include:spf.protection.outlook.co
SOA1ns10.firepixel.com tony.firepixel.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns10.firepixel.com, ns11.firepixel.com)

Analysis

Hierarchy

rpcbuilders.com serves as the parent of mail.rpcbuilders.com.

IP Addresses

rpcbuilders.com has exactly one IP address — 208.100.27.56.

bestbuiltinc.com, thepuddleduck.com, mk-aa.com plus two other host names have IP numbers in common with rpcbuilders.com.

Name Servers

rpcbuilders.com is delegated to two name servers: ns10.firepixel.com and ns11.firepixel.com.

The name server configuration of rpcbuilders.com is shared with other domains, for instance temployment.com, smacek.com, smtmachine.com and two others.

rpcbuilders.com shares at least some of its name servers with other domains, such as thorandersondds.com.

Host names pointing to two IP addresses:

ns10.firepixel.com points to 50.31.101.230 and 208.100.27.56.

Host names resolving to a single IP address:

ns11.firepixel.com points to 50.31.0.189.

Mail Servers

rpcbuilders.com uses one mail server — rpcbuilders-com.mail.protection.outlook.com.

rpcbuilders-com.mail.protection.outlook.com has 8 IP addresses: 40.93.192.1, 52.101.10.14, 52.101.40.0 plus 5 more.