MXLIST.NET - a.co
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a.co checked at 2025-10-13T02:42:19.070Z 201ms 106/106/106 100% R:14a.co
| NS | pdns5.ultradns.info | ||||||
| A | 2610:a1:1016::1 🇺🇸 Neustar | ||||||
| PTR | pdns5.ultradns.info | ||||||
| A | 204.74.114.1🇺🇸 Neustar | ||||||
| PTR | pdns5.ultradns.info | ||||||
| NS | pdns1.ultradns.net | ||||||
| A | 2001:502:f3ff::1 🇺🇸 Neustar | ||||||
| PTR | pdns1.ultradns.net | ||||||
| A | 204.74.108.1🇺🇸 Neustar | ||||||
| PTR | pdns1.ultradns.net | ||||||
| NS | pdns2.ultradns.net | ||||||
| A | 2610:a1:1014::1 🇺🇸 Neustar | ||||||
| PTR | pdns2.ultradns.net | ||||||
| A | 204.74.109.1🇺🇸 Neustar | ||||||
| PTR | pdns2.ultradns.net | ||||||
| NS | pdns3.ultradns.org | ||||||
| A | 2610:a1:1015::1 🇺🇸 Neustar | ||||||
| PTR | pdns3.ultradns.org | ||||||
| A | 199.7.68.1🇺🇸 Neustar | ||||||
| PTR | pdns3.ultradns.org | ||||||
| NS | pdns4.ultradns.org | ||||||
| A | 2001:502:4612::1 🇺🇸 Neustar | ||||||
| PTR | pdns4.ultradns.org | ||||||
| A | 199.7.69.1🇺🇸 Neustar | ||||||
| PTR | pdns4.ultradns.org | ||||||
| NS | pdns6.ultradns.co.uk | ||||||
| A | 2610:a1:1017::1 🇺🇸 Neustar | ||||||
| PTR | pdns6.ultradns.co.uk | ||||||
| A | 204.74.115.1🇺🇸 Neustar | ||||||
| PTR | pdns6.ultradns.co.uk | ||||||
| A | 54.239.16.179🇺🇸 Amazon | ||||||
| PTR | amz.onl | ||||||
| A | 54.239.20.248🇺🇸 Amazon | ||||||
| PTR | amz.onl | ||||||
| A | 54.239.21.27🇺🇸 Amazon | ||||||
| PTR | amz.onl | ||||||
co
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
rank #12 in the tld
This domain "a.co" belongs to Amazon. It is a shortened URL used by Amazon to simplify sharing links to their site or specific products. The ".co" is a top-level domain, and the "a" is a second-level domain. The domain name system is hierarchical, and "a.co" is a shorter, easier-to-use version of their full website address.
Up
www.a.co |
Starts with same word
Starts similarily
AI analysis
a.co is the parent of www.a.co.
a.co points to three IPs: 54.239.16.179, 54.239.20.248 and 54.239.21.27.
a.co is delegated to six name servers: pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk.
a.co at least partially shares name servers with other domains, for instance weeatimpossible.com, sdge.net, ffluor.com, food4u.com and jhnet.com.
These name servers are commonly used with the following name servers: udns1.ultradns.net, udns2.ultradns.net, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, dns1.p09.nsone.net, dns2.p09.nsone.net, dns3.p09.nsone.net and dns4.p09.nsone.net.
Host names with two IP numbers:
pdns5.ultradns.info points to 2610:a1:1016::1 and 204.74.114.1.
pdns1.ultradns.net points to 2001:502:f3ff::1 and 204.74.108.1.
pdns2.ultradns.net points to 2610:a1:1014::1 and 204.74.109.1.
pdns3.ultradns.org points to 2610:a1:1015::1 and 199.7.68.1.
pdns4.ultradns.org points to 2001:502:4612::1 and 199.7.69.1.
pdns6.ultradns.co.uk points to 2610:a1:1017::1 and 204.74.115.1.