WWW.RTSAK.COM - jeffco.us

Search for IP or hostnames:

jeffco.us checked at 2025-10-06T10:06:42.020Z 663ms 92/92/92 100% R:20

`jeffco.us`

NS	`ns1.f5clouddns.com`
		A	2604:e180:1071::3:1 ^{🇺🇸 Defense.Net}
		A	107.162.234.197^{🇺🇸 Defense.Net}
NS	`ns2.f5clouddns.com`
		A	2604:e180:1071::ffff:6ba2:b0dd ^{🇺🇸 Defense.Net}
		A	107.162.176.221^{🇺🇸 Defense.Net}
NS	`dns1.jeffco.us`
		A	199.184.241.130^{🇺🇸 AS53529}
			PTR	`dns1.co.jefferson.co.us`
NS	`dns2.jeffco.us`
		A	199.184.241.131^{🇺🇸 AS53529}
			PTR	`dns2.co.jefferson.co.us`
MX	`mxa-0010c902.gslb.pphosted.com`
		A	205.220.178.142^{🇺🇸 Proofpoint}
			PTR	`mx0b-0010c902.pphosted.com`
MX	`mxb-0010c902.gslb.pphosted.com`
		A	205.220.178.142^{🇺🇸 Proofpoint}
			PTR	`mx0b-0010c902.pphosted.com`
A	159.60.135.5^{🇺🇸 F5 Inc.}

`us`

	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`

rank #27649 globally
rank #104 in the tld

Up

dns2.jeffco.us

propertysearch.jeffco.us

ats.jeffco.us

dns1.jeffco.us

gisportal.jeffco.us

Starts with same word

jeffco.edu

jeffco.biz

jeffco.k12.co.us

jeffco.co

jeffco.us

jeffco.co.za

jeffco.net

jeffco.org

jeffco.co.uk

jeffco.herokuapp.com

jeffco.com

Starts similarily

jeffco.net

jeffco.org

jeffco.co.uk

jeffco.herokuapp.com

jeffco.com

jeffco.edu

jeffco.biz

jeffco.k12.co.us

jeffco.co

jeffco.us

offjce.com

jeffco.co.za

AI analysis

jeffco.us is a parent of dns2.jeffco.us, propertysearch.jeffco.us, ats.jeffco.us, dns1.jeffco.us and gisportal.jeffco.us.

jeffco.us points to IP number 159.60.135.5.

Other host names include ats.jeffco.us, gisportal.jeffco.us, co.jefferson.co.us and propertysearch.jeffco.us that share IP numbers with jeffco.us.

jeffco.us is delegated to four name servers: ns1.f5clouddns.com, ns2.f5clouddns.com, dns1.jeffco.us and dns2.jeffco.us.

jeffco.us shares name servers with other domains at least partially, for example sherwin-williams.com.au, movimientoazteca.com, inversionesaguasmetropolitanas.cl, bedarmor.com and seatlan.com.

these name servers are commonly used together with the name servers ns3.aztecaservicios.mx, ns4.aztecaservicios.mx, ns1.f5cloudservices.com, ns2.f5cloudservices.com, ns1.fnni.com, ns5.fnni.com, ns1.aztecaservicios.com and ns2.aztecaservicios.com.

Hosts with two IP addresses:

ns1.f5clouddns.com points to 2604:e180:1071::3:1 and 107.162.234.197.

ns2.f5clouddns.com points to 2604:e180:1071::ffff:6ba2:b0dd and 107.162.176.221.

Hosts with one IP address:

dns1.jeffco.us points to 199.184.241.130.

dns2.jeffco.us points to 199.184.241.131.

Two mail servers mxa-0010c902.gslb.pphosted.com and mxb-0010c902.gslb.pphosted.com handle jeffco.us.

jeffco.us uses the same mail server setup as other domains like votejeffco.com and co.jefferson.co.us.

Host names with a single IP

mxa-0010c902.gslb.pphosted.com points to: 205.220.178.142

mxb-0010c902.gslb.pphosted.com points to: 205.220.178.142

Host names pointing to 205.220.178.142: mxa-0010c902.gslb.pphosted.com and mxb-0010c902.gslb.pphosted.com

dbq