WWW.RTSAK.COM - postmasterclass.com
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postmasterclass.com checked at 2025-10-14T22:05:39.424Z 335ms 100/100/100 100% R:13postmasterclass.com
| NS | sdns34.ultradns.biz | ||||||
| A | 2610:a1:1003::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.biz | ||||||
| A | 156.154.142.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.biz | ||||||
| NS | sdns34.ultradns.com | ||||||
| A | 2610:a1:1001::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.com | ||||||
| A | 156.154.140.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.com | ||||||
| NS | sdns34.ultradns.net | ||||||
| A | 2610:a1:1002::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.net | ||||||
| A | 156.154.141.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.net | ||||||
| NS | sdns34.ultradns.org | ||||||
| A | 2610:a1:1004::22 🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.org | ||||||
| A | 156.154.143.34🇺🇸 Neustar | ||||||
| PTR | sdns34.ultradns.org | ||||||
| MX | mxa-001a3c01.gslb.pphosted.com | ||||||
| A | 67.231.153.114🇺🇸 Proofpoint | ||||||
| PTR | mx0b-001a3c01.pphosted.com | ||||||
| MX | mxb-001a3c01.gslb.pphosted.com | ||||||
| A | 67.231.148.195🇺🇸 Proofpoint | ||||||
| PTR | mx0a-001a3c01.pphosted.com | ||||||
| A | 174.129.15.191🇺🇸 Amazon | ||||||
| PTR | ec2-174-129-15-191.compute-1.amazonaws.com | ||||||
com
Starts with same word
postmasterclass.com |
Starts similarily
postmasterclass.com |
masterclasspost.com |
AI analysis
postmasterclass.com points to a single IP number: 174.129.15.191.
Other host names, for instance ec2-174-129-15-191.compute-1.amazonaws.com, share IP numbers with postmasterclass.com.
postmasterclass.com is delegated to four name servers: sdns34.ultradns.biz, sdns34.ultradns.com, sdns34.ultradns.net and sdns34.ultradns.org.
postmasterclass.com at least partially shares name servers with other domains, for instance servicealley.com, thelily.com, shopdcmagazine.com, shopdc.com and digitalink.com.
Host names with two IP numbers:
sdns34.ultradns.biz points to: 2610:a1:1003::22 and 156.154.142.34.
sdns34.ultradns.com points to: 2610:a1:1001::22 and 156.154.140.34.
sdns34.ultradns.net points to: 2610:a1:1002::22 and 156.154.141.34.
sdns34.ultradns.org points to: 2610:a1:1004::22 and 156.154.143.34.
postmasterclass.com is handled by two mail servers: mxa-001a3c01.gslb.pphosted.com and mxb-001a3c01.gslb.pphosted.com.
postmasterclass.com uses the same mail server configuration as other domains, such as digitalink.com, wecasa.com, e.washingtonpost.com, strollaround.com and zeustechnology.com.
postmasterclass.com shares mail servers with other domains, at least partially, for instance newhomesguide.com and gwpi.net.
these mail servers are often used with email.newhomesguide.com and mail.newhomesguide.com.
Host names with one IP number: mxa-001a3c01.gslb.pphosted.com points to 67.231.153.114; mxb-001a3c01.gslb.pphosted.com points to 67.231.148.195.