DNSWHOIS.INFO - openctf.com

Search for IP or hostnames:

openctf.com checked at 2025-10-09T00:10:03.209Z 222ms 153/153/153 100% R:14

`openctf.com`

MX	`aspmx2.googlemail.com`
		A	2a00:1450:400b:c02::1b ^{🇮🇪 Google}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`
		A	2a00:1450:400c:c00::1a ^{🇧🇪 Google}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.26^{🇺🇸 Google}
			PTR	`ws-in-f26.1e100.net`
NS	`ns1.he.net`
		A	2001:470:100::2 ^{🇺🇸 Hurricane Electric}
			PTR	`ns1.he.net`
		A	216.218.130.2^{🇺🇸 Hurricane Electric}
			PTR	`ns1.he.net`
NS	`ns2.he.net`
		A	2001:470:200::2 ^{🇺🇸 Hurricane Electric}
			PTR	`ns2.he.net`
		A	216.218.131.2^{🇺🇸 Hurricane Electric}
			PTR	`ns2.he.net`
NS	`ns3.he.net`
		A	2001:470:300::2 ^{🇺🇸 Hurricane Electric}
			PTR	`ns3.he.net`
		A	216.218.132.2^{🇺🇸 Hurricane Electric}
			PTR	`ns3.he.net`
NS	`ns4.he.net`
		A	2001:470:400::2 ^{🇺🇸 Hurricane Electric}
			PTR	`ns4.he.net`
		A	216.66.1.2^{🇺🇸 Hurricane Electric}
			PTR	`ns4.he.net`
NS	`ns5.he.net`
		A	2001:470:500::2 ^{🇺🇸 Hurricane Electric}
			PTR	`ns5.he.net`
		A	216.66.80.18^{🇺🇸 Hurricane Electric}
			PTR	`ns5.he.net`
MX	`aspmx.l.google.com`
		A	2a00:1450:400c:c0a::1a ^{🇧🇪 Google}
			PTR	`wl-in-f26.1e100.net`
			PTR	`wl-in-x1a.1e100.net`
		A	74.125.133.26^{🇺🇸 Google}
			PTR	`wo-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`
		A	2a00:1450:4013:c1e::1b ^{🇳🇱 Google}
			PTR	`yugrqzs-in-f27.1e100.net`
		A	192.178.213.27^{🇺🇸 Google}
			PTR	`yugrqzs-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`
		A	2a00:1450:4025:c01::1a ^{🇵🇱 Google}
			PTR	`rd-in-f26.1e100.net`
		A	142.250.147.27^{🇺🇸 Google}
			PTR	`rd-in-f27.1e100.net`
A	2a05:d018:c8b:6900:9efb:4720:b690:5228 ^{🇮🇪 Amazon}
A	52.18.145.92^{🇮🇪 Amazon}
		PTR	`ec2-52-18-145-92.eu-west-1.compute.amazonaws.com`

`com`

	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`

Up

www.openctf.com

Starts with same word

openctf.com

Starts similarily

opentfc.com

foncept.com

openctf.com

AI analysis

openctf.com is a parent of www.openctf.com.

openctf.com points to two IP numbers: 2a05:d018:c8b:6900:9efb:4720:b690:5228 and 52.18.145.92.

Other host names, for instance ec2-52-18-145-92.eu-west-1.compute.amazonaws.com, share IP numbers with openctf.com.

openctf.com is delegated to five name servers: ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net and ns5.he.net.

At least part of the name servers for openctf.com are shared with other domains, for instance 246.76.185.in-addr.arpa, landofhaze.net, usworkers.com, lhyde.com and irmacos.net.

Host names with two IP numbers: ns1.he.net points to 2001:470:100::2 and 216.218.130.2; ns2.he.net points to 2001:470:200::2 and 216.218.131.2; ns3.he.net points to 2001:470:300::2 and 216.218.132.2; ns4.he.net points to 2001:470:400::2 and 216.66.1.2; ns5.he.net points to 2001:470:500::2 and 216.66.80.18.

openctf.com is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

openctf.com shares at least some mail servers with other domains, for example businessdatacodes.com, universal-publishers.com, saleduck.com.my, emagroupsrl.it and xinstec.com.

These mail servers are commonly used alongside aspmx4.googlemail.com, aspmx5.googlemail.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

Host names with two IP numbers: aspmx2.googlemail.com points to 2a00:1450:400b:c02::1b and 172.253.116.27; aspmx3.googlemail.com points to 2a00:1450:400c:c00::1a and 173.194.76.26; aspmx.l.google.com points to 2a00:1450:400c:c0a::1a and 74.125.133.26; alt1.aspmx.l.google.com points to 2a00:1450:4013:c1e::1b and 192.178.213.27; alt2.aspmx.l.google.com points to 2a00:1450:4025:c01::1a and 142.250.147.27.

dbq