IPLIST.NET - portcullis-security.com
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portcullis-security.com checked at 2025-10-19T13:41:23.570Z 355ms 108/108/108 100% R:16portcullis-security.com
| MX | aer-mx-01.cisco.com | ||||||
| A | 2001:420:4621::ad26:d496 🇳🇱 Cisco Systems, Inc. | ||||||
| PTR | aer-mx-01.cisco.com | ||||||
| A | 173.38.212.150🇳🇱 Cisco Systems, Inc. | ||||||
| PTR | aer-mx-01.cisco.com | ||||||
| MX | alln-mx-01.cisco.com | ||||||
| A | 2001:420:1201:6::ad25:93e6 🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | alln-mx-01.cisco.com | ||||||
| A | 173.37.147.230🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | alln-mx-01.cisco.com | ||||||
| NS | ns1.cisco.com | ||||||
| A | 2001:420:1101:6::a 🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | ns1.cisco.com | ||||||
| A | 72.163.5.201🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | ns1.cisco.com | ||||||
| NS | ns2.cisco.com | ||||||
| A | 2001:420:2041:5000::a 🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | ns2.cisco.com | ||||||
| A | 64.102.255.44🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | ns2.cisco.com | ||||||
| NS | ns3.cisco.com | ||||||
| A | 2001:420:1201:7::a 🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | ns3.cisco.com | ||||||
| A | 173.37.146.41🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | ns3.cisco.com | ||||||
| MX | rcdn-mx-01.cisco.com | ||||||
| A | 2001:420:1101:7::48a3:166 🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | rcdn-mx-01.cisco.com | ||||||
| A | 72.163.7.166🇺🇸 Cisco Systems, Inc. | ||||||
| PTR | rcdn-mx-01.cisco.com | ||||||
| A | 185.199.111.153🇺🇸 Fastly | ||||||
| PTR | cdn-185-199-111-153.github.com | ||||||
com
Starts with same word
portcullis-security.com |
Starts similarily
portcullis-security.com |
AI analysis
portcullis-security.com points to IP number: 185.199.111.153.
Other host names such as codr.io, elvirajuniar.github.io, gyteng.github.io, www.bittersweetryan.github.io and eddie0709.github.io share IPs with portcullis-security.com.
portcullis-security.com is delegated to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
portcullis-security.com at least partially shares name servers with other domains, for instance 198.69.204.in-addr.arpa, ieng.com, iqportal.org, aironet.net and mamaison-net.com.
These name servers are commonly used with a28-64.akam.net and a3-64.akam.net.
Host ns1.cisco.com points to 2001:420:1101:6::a and 72.163.5.201; Host ns2.cisco.com points to 2001:420:2041:5000::a and 64.102.255.44; Host ns3.cisco.com points to 2001:420:1201:7::a and 173.37.146.41.
Three mail servers handle portcullis-security.com: aer-mx-01.cisco.com, alln-mx-01.cisco.com and rcdn-mx-01.cisco.com.
portcullis-security.com shares at least partially some mail servers with other domains, including involvio.com, coreoptics.com, rigor.com, fluidmesh.com and teltier.com.
these mail servers are often used together with mail1.dynamicsoft.com, rtp-mx-01.cisco.com, ams-mx-01.cisco.com, smtp2.easydns.com, smtp.easydns.com, smtp.protegonetworks.com and mail.topspin.com.
Host aer-mx-01.cisco.com points to 2001:420:4621::ad26:d496 and 173.38.212.150; Host alln-mx-01.cisco.com points to 2001:420:1201:6::ad25:93e6 and 173.37.147.230; Host rcdn-mx-01.cisco.com points to 2001:420:1101:7::48a3:166 and 72.163.7.166.