DNSWHOIS.INFO - istudyob.com
Search for IP or hostnames:
istudyob.com checked at 2025-10-24T14:55:03.054Z 1500ms 90/90/90 100% R:10istudyob.com
| NS | pdns85.ultradns.biz | ||||||
| A | 2610:a1:1015::79 🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| A | 156.154.66.85🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| MX | corp148mr3.mcgraw-hill.com | ||||||
| MX | corp148mr4.mcgraw-hill.com | ||||||
| MX | nj12corpmr01.mcgraw-hill.com | ||||||
| MX | nj12corpmr02.mcgraw-hill.com | ||||||
| NS | pdns85.ultradns.com | ||||||
| A | 2001:502:f3ff::79 🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| A | 156.154.64.85🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| NS | pdns85.ultradns.net | ||||||
| A | 2610:a1:1014::79 🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| A | 156.154.65.85🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| NS | pdns85.ultradns.org | ||||||
| A | 2001:502:4612::79 🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| A | 156.154.67.85🇺🇸 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| A | 192.243.85.36🇺🇸 F5 Inc. | ||||||
com
Starts with same word
istudyob.com |
Starts similarily
AI analysis
istudyob.com points to a single IP number: 192.243.85.36.
other host names for instance mcgrawhill.ca, istudysociology.com, mcgraw-hillryerson.com, mathontario.com and istudymis.ca share IP numbers with istudyob.com.
istudyob.com is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
istudyob.com at least partially shares name servers with other domains, for instance radreviewmhe.com, betterforyou.com, mhpractice.com.tw, wncpmathcurriculum.com and mathmatters1.com.
Host names with two IP numbers:
Host name pdns85.ultradns.biz points to: 2610:a1:1015::79 and 156.154.66.85.
Host name pdns85.ultradns.com points to: 2001:502:f3ff::79 and 156.154.64.85.
Host name pdns85.ultradns.net points to: 2610:a1:1014::79 and 156.154.65.85.
Host name pdns85.ultradns.org points to: 2001:502:4612::79 and 156.154.67.85.
Four mail servers handle istudyob.com: corp148mr3.mcgraw-hill.com, corp148mr4.mcgraw-hill.com, nj12corpmr01.mcgraw-hill.com and nj12corpmr02.mcgraw-hill.com.
istudyob.com shares mail servers with other domains at least partially, including standardpoor.com, istudymis.ca, istudycalculus.ca, mhe-elt.com and wrightgroup.com.
these mail servers are often used alongside corp148mr6.mcgraw-hill.com, corp55wmr5.mcgraw-hill.com, corp148mr.mcgraw-hill.com, corp55wmr.mcgraw-hill.com, corp55wmr3.mcgraw-hill.com and corp55wmr4.mcgraw-hill.com.