WWW.RTSAK.COM - openctf.com

Search for IP or hostnames:

openctf.com checked at 2025-09-28T03:57:59.129Z 466ms 153/153/153 100% R:16

`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::1b ^{🇧🇪 Google}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.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	2607:f8b0:4004:c0b::1a ^{🇺🇸 Google}
			PTR	`bj-in-f26.1e100.net`
		A	142.250.31.26^{🇺🇸 Google}
			PTR	`bj-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`
		A	2a00:1450:400b:c02::1a ^{🇮🇪 Google}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google}
			PTR	`dj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`
		A	2a00:1450:400c:c00::1b ^{🇧🇪 Google}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.27^{🇺🇸 Google}
			PTR	`ws-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 the parent of www.openctf.com.

openctf.com resolves 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.

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

these mail servers are often used with 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::1b and 173.194.76.26.

aspmx.l.google.com points to 2607:f8b0:4004:c0b::1a and 142.250.31.26.

alt1.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.27.

alt2.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.27.

Host names that point to 172.253.116.27: aspmx2.googlemail.com and alt1.aspmx.l.google.com.

Host names that point to 2a00:1450:400c:c00::1b: aspmx3.googlemail.com and alt2.aspmx.l.google.com.

dbq