`rcbopt.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:dae0^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:2b27^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.39^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.218.224^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nelci.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2698^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c298^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nelci.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2298^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nelci.ns.cloudflare.com`
		A	108.162.194.152^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	162.159.38.152^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
		A	172.64.34.152^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nelci.ns.cloudflare.com`
NS	`pedro.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cb7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pedro.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pedro.ns.cloudflare.com`
		A	108.162.195.183^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
		A	162.159.44.183^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
		A	172.64.35.183^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁸⁶⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽¹⁰⁰⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`google-site-verification=CFefyuy-OwibnW35ycM5nCKNFva-otoP54y_9Ky-Nao`
TXT	`v=spf1 +a +mx include:_spf.mx.cloudflare.net include:spf.cheetahinbox.com ~all`
TXT	`yahoo-verification-key=BTiZ4pU0tv1D7IrTPTAofz43vrGRewAL765MgQmMzlk=`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.43.39, 172.67.218.224
		IPv6	2606:4700:3031::ac43:dae0, 2606:4700:3033::6815:2b27
SOA	`nelci.ns.cloudflare.com`dns@cloudflare.com serial=2398504839

`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=1771291435

Same first word

rcbopt.com

Similar names

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brctop.com

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portcb.com

tbcorp.net

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pcrbot.com

cotrbp.org

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bctpro.com

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btcpro.org

probtc.com

DNS History

14 records (9 active, 5 former)

●NSnelci.ns.cloudflare.com2026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

○NSns1.digitalocean.com2018-11-28 → 2018-11-28 · 3 obs

● 2018-11-28 10:22:48
○ 2026-02-16 12:14:28
○ 2026-03-24 11:03:30

○NSns2.digitalocean.com2018-11-28 → 2018-11-28 · 3 obs

● 2018-11-28 10:22:48
○ 2026-02-16 12:14:28
○ 2026-03-24 11:03:30

○NSns3.digitalocean.com2018-11-28 → 2018-11-28 · 3 obs

● 2018-11-28 10:22:48
○ 2026-02-16 12:14:28
○ 2026-03-24 11:03:30

●NSpedro.ns.cloudflare.com2026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

○MXmail.rcbopt.com2018-11-28 → 2018-11-28 · 3 obs

● 2018-11-28 10:22:48
○ 2026-02-16 12:14:28
○ 2026-03-24 11:03:30

●MXroute1.mx.cloudflare.net2026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

●MXroute2.mx.cloudflare.net2026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

●MXroute3.mx.cloudflare.net2026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

●A104.21.43.392026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

○A167.99.77.1182018-11-28 → 2018-11-28 · 3 obs

● 2018-11-28 10:22:48
○ 2026-02-16 12:14:28
○ 2026-03-24 11:03:30

●A172.67.218.2242026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

●A2606:4700:3031::ac43:dae02026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

●A2606:4700:3033::6815:2b272026-02-16 → 2026-03-24 · 3 obs

○ 2018-11-28 10:22:48
● 2026-02-16 12:14:28
● 2026-03-24 11:03:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rcbopt.com	nelci.ns.cloudflare.com, pedro.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.183

NS records: nelci.ns.cloudflare.com, pedro.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rcbopt.com (unsigned zone)

⏱️ Timing

Total: 149ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.43.39, 172.67.218.224`
AAAA	2	`2606:4700:3031::ac43:dae0, 2606:4700:3033::6815:2b27`
NS	2	`nelci.ns.cloudflare.com, pedro.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 100), route1.mx.cloudflare.net (pri: 58)...`
TXT	3	`google-site-verification=CFefyuy-OwibnW3, v=spf1 +a +mx include:_spf.mx.cloudflare...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nelci.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nelci.ns.cloudflare.com, nelci.ns.cloudflare.com, nelci.ns.cloudflare.com...)

Analysis

IP Addresses

rcbopt.com maps to four IP numbers: 2606:4700:3031::ac43:dae0, 2606:4700:3033::6815:2b27, 104.21.43.39 and 172.67.218.224.

Other host names, for instance diywithwp.com, oscops.com, arbitrsofttools.com, milspectubing.com and qyknit.com share IP numbers with rcbopt.com.

Name Servers

Two name servers nelci.ns.cloudflare.com and pedro.ns.cloudflare.com handle delegation for rcbopt.com.

rcbopt.com uses the same name server setup as other domains, for example zhornyhub.com, masuksibayaktoto.store, 40westshell.com, maildy.mn and 94ya.com.

rcbopt.com partially shares name servers with other domains; examples include romay.ru, tpmfl.com, tradefolexai.com, zodufojapiaindustriesinc.click and alpinroyal.com.

These name servers are often used with the name servers fatima.ns.cloudflare.com and fattouche.ns.cloudflare.com.

Host names with six IP numbers: nelci.ns.cloudflare.com points to: 2606:4700:50::a29f:2698, 2803:f800:50::6ca2:c298, 2a06:98c1:50::ac40:2298, 108.162.194.152, 162.159.38.152 and 172.64.34.152; pedro.ns.cloudflare.com points to: 2606:4700:58::a29f:2cb7, 2803:f800:50::6ca2:c3b7, 2a06:98c1:50::ac40:23b7, 108.162.195.183, 162.159.44.183 and 172.64.35.183.

Mail Servers

rcbopt.com is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

rcbopt.com shares some mail servers with other domains, at least partially, such as muhammadalicentre.com, absolutebarrister.com, jiangchou.com, animefanfest.com and ashman.ca.

Host names with six IP numbers:

route1.mx.cloudflare.net points to 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13.

route2.mx.cloudflare.net points to 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19.

route3.mx.cloudflare.net points to 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.

rcbopt.com - robtex.com

rcbopt.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`rcbopt.com`

`com`