`circuitblue.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:8f^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:8013^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.143^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.19^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gene.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a9e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c09e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gene.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:209e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gene.ns.cloudflare.com`
		A	108.162.192.158^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
		A	172.64.32.158^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
		A	173.245.58.158^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gene.ns.cloudflare.com`
NS	`oswald.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bda^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`oswald.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`oswald.ns.cloudflare.com`
		A	108.162.193.218^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
		A	172.64.33.218^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
		A	173.245.59.218^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oswald.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		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`
MX	`route3.mx.cloudflare.net`⁽⁵⁷⁾
		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	`route1.mx.cloudflare.net`⁽⁷⁸⁾
		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`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.143, 172.67.128.19
		IPv6 hints	2606:4700:3032::6815:8f, 2606:4700:3033::ac43:8013
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com
SOA	`gene.ns.cloudflare.com`dns@cloudflare.com serial=2407071155

`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=1785297522

WOT: SAFE (61/100)

Previously MX for

circuitblue.com

www.circuitblue.com

Subdomains

www.circuitblue.com

Same first word

circuitblue.com

Similar names

bluecircuit.net

bluecircuit.app

DNS History

16 records (9 active, 7 former)

●NSgene.ns.cloudflare.com2026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

○NSns10565.dizinc.com2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-13 14:40:06
● 2020-01-12 21:55:10
○ 2026-07-03 22:39:50
○ 2026-07-29 04:23:48

○NSns10566.dizinc.com2020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-13 14:40:06
● 2020-01-12 21:55:10
○ 2026-07-03 22:39:50
○ 2026-07-29 04:23:48

○NSns933.dizinc.com2007-11-15 → 2017-03-13 · 4 obs

● 2007-11-15 19:03:02
● 2017-03-13 14:40:06
○ 2020-01-12 21:55:10
○ 2026-07-29 04:23:48

○NSns934.dizinc.com2007-11-15 → 2017-03-13 · 4 obs

● 2007-11-15 19:03:02
● 2017-03-13 14:40:06
○ 2020-01-12 21:55:10
○ 2026-07-29 04:23:48

●NSoswald.ns.cloudflare.com2026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

○MXcircuitblue.com2007-11-15 → 2020-01-12 · 4 obs

● 2007-11-15 19:03:02
● 2020-01-12 21:55:10
○ 2026-07-03 22:39:50
○ 2026-07-29 04:23:48

●MXroute1.mx.cloudflare.net2026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

●MXroute2.mx.cloudflare.net2026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

●MXroute3.mx.cloudflare.net2026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

●A104.21.0.1432026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

●A172.67.128.192026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

○A198.136.61.2252020-01-12 → 2020-01-12 · 4 obs

○ 2017-03-13 14:40:06
● 2020-01-12 21:55:10
○ 2026-07-03 22:39:50
○ 2026-07-29 04:23:48

●A2606:4700:3032::6815:8f2026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

●A2606:4700:3033::ac43:80132026-07-03 → 2026-07-29 · 3 obs

○ 2020-01-12 21:55:10
● 2026-07-03 22:39:50
● 2026-07-29 04:23:48

○A72.29.65.1362007-11-15 → 2017-03-13 · 4 obs

● 2007-11-15 19:03:02
● 2017-03-13 14:40:06
○ 2020-01-12 21:55:10
○ 2026-07-29 04:23:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
circuitblue.com	gene.ns.cloudflare.com, oswald.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.218

NS records: gene.ns.cloudflare.com, oswald.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circuitblue.com (unsigned zone)

⏱️ Timing

Total: 272ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.128.19, 104.21.0.143`
AAAA	2	`2606:4700:3033::ac43:8013, 2606:4700:3032::6815:8f`
NS	2	`gene.ns.cloudflare.com, oswald.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 12), route3.mx.cloudflare.net (pri: 57)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`gene.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The domain www.circuitblue.com falls under the parent circuitblue.com.

IP Addresses

circuitblue.com points to the four IP addresses 104.21.0.143, 172.67.128.19, 2606:4700:3032::6815:8f and 2606:4700:3033::ac43:8013.

Among the host names that share IP numbers with circuitblue.com are changhongjun.com, www.cisram7.com.cdn.cloudflare.net, mx1.allotravaux.net and two others.

Name Servers

circuitblue.com has two authoritative name servers — gene.ns.cloudflare.com and oswald.ns.cloudflare.com.

circuitblue.com has the same name server delegation as a number of other domains, such as travel-monkey.com, phwebhost.com, quizpop.com.br and two more.

At least some of circuitblue.com's name servers are shared with other domains, for example jitpress.com.mx, kallorivethn.sbs, cloud-japan.org and two more.

Host names resolving to 6 IP numbers:

gene.ns.cloudflare.com points to 108.162.192.158, 172.64.32.158, 173.245.58.158 and 3 other IP addresses.

oswald.ns.cloudflare.com points to 108.162.193.218, 172.64.33.218, 173.245.59.218 and 3 other IP addresses.

Mail Servers

The MX records for circuitblue.com list three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

circuitblue.com shares at least some of its mail servers with other domains — for example erwanmartin.fr, yhelper.net, keurwood.com and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net points to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net points to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net points to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.

circuitblue.com - robtex.com

circuitblue.com

com

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`circuitblue.com`

`com`