pdns4.ultradns.org
426 indexed domains delegated to this nameserver
Domains below list pdns4.ultradns.org in their NS record set. Useful for mapping DNS providers, finding peer sites on shared managed-DNS, and surfacing infrastructure relationships.
426 indexed domains in pdns4.ultradns.org. Oldest: dupont.com (1987-07-27). Newest: qnityelectronics.com (2025-02-21).
Top registrars: CSC Corporate Domains, Inc. (146), MarkMonitor Inc. (81), EuroDNS S.A. (30), GoDaddy.com, LLC (29), SafeNames Ltd. (24)
Top TLDs: .com (321), .ca (26), .net (17), .org (15), .nl (11)
- springer.comEuroDNS S.A. · #271 · 73/100
- nature.comCSC Corporate Domains, Inc. · #308 · 96/100
- makemytrip.comRegister.com - Network Solutions, LLC · #1174 · 100/100
- biomedcentral.comEuroDNS S.A. · #1199 · 88/100
- expedia.comCSC Corporate Domains, Inc. · #2025 · 96/100
- ctvnews.caMarkMonitor International Canada Ltd. · #2996 · 96/100
- vrbo.comGoDaddy Corporate Domains, LLC · #3011 · 100/100
- hotels.comCSC Corporate Domains, Inc. · #3321 · 96/100
- sonicwall.comGoDaddy.com, LLC · #4182 · 100/100
- harborfreight.comeNom, LLC · #5513 · 96/100
- scholastic.comMarkMonitor Inc. · #5918 · 100/100
- ultradns2.comCSC Corporate Domains, Inc. · #5927 · 88/100
- springeropen.comEuroDNS S.A. · #6152 · 96/100
- thermofisher.comMarkMonitor Inc. · #6219 · 96/100
- iata.orgNetwork Solutions, LLC · #6506 · 100/100
- legalzoom.comGoDaddy Corporate Domains, LLC · #8212 · 100/100
- desjardins.comMarkMonitor Inc. · #8271 · 96/100
- totalcasino.plnazwa.pl sp. z o.o. · #9180 · 96/100
- springernature.comEuroDNS S.A. · #10368 · 96/100
- springerlink.comEuroDNS S.A. · #10813 · 96/100
- tsn.caMarkMonitor International Canada Ltd. · #11872 · 100/100
- travelocity.comCSC Corporate Domains, Inc. · #11968 · 96/100
- juniper.netCSC Corporate Domains, Inc. · #12091 · 88/100
- travel-assets.comCSC Corporate Domains, Inc. · #12124 · 96/100
- ultradns2.orgCSC Corporate Domains, Inc. · #12699 · 88/100
- adultfriendfinder.comGoDaddy.com, LLC · #12736 · 96/100
- bnnbloomberg.caMarkMonitor International Canada Ltd. · #13069 · 100/100
- orbitz.comCSC Corporate Domains, Inc. · #13393 · 96/100
- avma.orgSafeNames Ltd. · #13563 · 96/100
- moodys.comCSC Corporate Domains, Inc. · #13609 · 96/100
- harley-davidson.comMarkMonitor Inc. · #13977 · 100/100
- nortoncdn.comMarkMonitor Inc. · #14033 · 100/100
- primark.comSafeNames Ltd. · #14068 · 96/100
- expedia.caCSC Corporate Domains (Canada) Company · #14183 · 73/100
- expediapartnercentral.comCSC Corporate Domains, Inc. · #14335 · 96/100
- dupont.comMarkMonitor Inc. · #14554 · 100/100
- progress.comKey-Systems GmbH · #15026 · 88/100
- secureexchange.netCSC Corporate Domains, Inc. · #16511 · 88/100
- gr-assets.comMarkMonitor Inc. · #18983 · 96/100
- trvl-media.comCSC Corporate Domains, Inc. · #20663 · 88/100
- heartlandportico.comCSC Corporate Domains, Inc. · #20850 · 96/100
- mlssoccer.comCSC Corporate Domains, Inc. · #21141 · 96/100
- columbia.comMarkMonitor Inc. · #21283 · 96/100
- ctv.caMarkMonitor International Canada Ltd. · #22118 · 96/100
- uciservice.comCSC Corporate Domains, Inc. · #23250 · 96/100
- expediagroup.comCSC Corporate Domains, Inc. · #23594 · 96/100
- veritas.comMarkMonitor Inc. · #24732 · 88/100
- salvationarmy.orgNetwork Solutions, LLC · #25041 · 100/100
- cp24.comMarkMonitor Inc. · #25231 · 100/100
- bmc.comMarkMonitor Inc. · #25884 · 100/100