`rjcbuilders.com`

DNSSEC	⚠️ Not signed
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	208.91.197.27^{🇻🇬 CONFLUENCE-NETWORK-INC208.91.197.0/24 Confluence Networks Route Object}
NS	`ns51.worldnic.com` ⭐
		A	162.159.26.165^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns52.worldnic.com`
		A	162.159.27.8^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`rjcbuilders-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c801::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:c802::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy4pr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f903::^{🇺🇸 Microsoft2a01:111:f000::/36}
		A	2a01:111:f403:f90a::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr02cu00300.inbound.protection.outlook.com`
		A	52.101.9.20^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00604.inbound.protection.outlook.com`
		A	52.101.10.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.10.12^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn1pr21cu00204.inbound.protection.outlook.com`
		A	52.101.41.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01702.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms92376061`
SOA	`NS51.WORLDNIC.com`namehost@WORLDNIC.com serial=124040820

`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.net`nstld@verisign-grs.com serial=1774394827

Same first word

rjcbuilders.com

DNS History

15 records (7 active, 8 former)

○NSdns1.earthlink.net2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

○NSdns2.earthlink.net2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

○NSdns3.earthlink.net2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

●NSns51.worldnic.com2026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

●NSns52.worldnic.com2026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

○MXmx1c38.carrierzone.com2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

○MXmx2c38.carrierzone.com2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

○MXmx3c38.carrierzone.com2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

○MXmx4c38.carrierzone.com2015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

●MXrjcbuilders-com.mail.protection.outlook.com2026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

●A198.185.159.1442026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

●A198.185.159.1452026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

●A198.49.23.1442026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

●A208.91.197.272026-03-22 → 2026-03-24 · 3 obs

○ 2018-06-30 03:48:12
● 2026-03-22 13:37:34
● 2026-03-24 23:46:22

○A66.175.58.92015-06-24 → 2018-06-30 · 4 obs

● 2015-06-24 18:04:04
● 2018-06-30 03:48:12
○ 2026-03-22 13:37:34
○ 2026-03-24 23:46:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
rjcbuilders.com	ns51.worldnic.com, ns52.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.27.8

NS records: ns51.worldnic.com, ns52.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rjcbuilders.com (unsigned zone)

⏱️ Timing

Total: 354ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`208.91.197.27, 198.185.159.144...`
NS	2	`ns52.worldnic.com, ns51.worldnic.com`
MX	1	`rjcbuilders-com.mail.protection.outlook.`
TXT	2	`MS=ms92376061, v=spf1 include:spf.protection.outlook.co`
SOA	1	`NS51.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns51.worldnic.com, ns52.worldnic.com)

Analysis

IP Addresses

rjcbuilders.com points to four IP numbers: 198.49.23.144, 198.185.159.144, 198.185.159.145 and 208.91.197.27.

Other host names, for instance ct3000.net, thomasmhiggins.com, supergard.com, asianpaint.net and kinglibertyhealthcentre.com share IP numbers with rjcbuilders.com.

Name Servers

Delegation for rjcbuilders.com rests with two name servers, ns51.worldnic.com and ns52.worldnic.com.

rjcbuilders.com shares the same name server setup as other domains, including konters.com, somagirls.tv, ocbanquet.com, thinkrainmaker.com and fpcsn.net.

Host names with one IP number: ns51.worldnic.com points to 162.159.26.165; ns52.worldnic.com points to 162.159.27.8.

Mail Servers

rjcbuilders.com is handled by a single mail server, rjcbuilders-com.mail.protection.outlook.com.

rjcbuilders-com.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:c801::1, 2a01:111:f403:c802::, 2a01:111:f403:f903::, 2a01:111:f403:f90a::, 52.101.9.20, 52.101.10.10, 52.101.10.12 and 52.101.41.26.

rjcbuilders.com - robtex.com

rjcbuilders.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`rjcbuilders.com`

`com`