biddersoft.com - dns.ninja

`biddersoft.com`

DNSSEC	⚠️ Not signed
NS	`dns-external-master.amazon.com` ⭐
		A	204.74.108.1^{🇺🇸 MAINT-ID-12008204.74.108.0/24 Neustar}
			PTR	`pdns1.ultradns.net`
NS	`ns1.amzndns.co.uk`
		A	2001:502:4612::10^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`u4.amazonaws.info`
		A	156.154.67.10^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`u4.amazonaws.info`
NS	`ns1.amzndns.com`
		A	2001:502:f3ff::10^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`u1.amazonaws.com`
		A	156.154.64.10^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`u1.amazonaws.com`
NS	`ns1.amzndns.net`
		A	2610:a1:1014::10^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`u2.amazonaws.com`
		A	156.154.65.10^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`u2.amazonaws.com`
NS	`ns1.amzndns.org`
		A	2610:a1:1015::10^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`u3.amazonaws.info`
		A	156.154.66.10^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`u3.amazonaws.info`
NS	`ns2.amzndns.co.uk`
		A	2610:a1:32d1::53^{🇺🇸 AS3991692610:a1:32d1::/48}
			PTR	`dns-01.ultradns2.org`
		A	204.74.120.1^{🇺🇸 AS399169204.74.120.0/24}
			PTR	`dns-01.ultradns2.org`
NS	`ns2.amzndns.com`
		A	2610:a1:1016::10^{🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar}
			PTR	`u5.amazonaws.org`
		A	156.154.68.10^{🇺🇸 MAINT-ID-12008156.154.68.0/24 Neustar}
			PTR	`u5.amazonaws.org`
NS	`ns2.amzndns.net`
		A	2610:a1:1017::10^{🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar}
			PTR	`u6.amazonaws.org`
		A	156.154.69.10^{🇺🇸 MAINT-ID-12008156.154.69.0/24 Neustar}
			PTR	`u6.amazonaws.org`
NS	`ns2.amzndns.org`
		A	2610:a1:31d1::53^{🇺🇸 AS3991692610:a1:31d1::/48}
			PTR	`dns-01.ultradns2.com`
		A	156.154.150.1^{🇺🇸 AS399169156.154.150.0/24}
			PTR	`dns-01.ultradns2.com`
TXT	`v=spf1 -all`
SOA	`dns-external-master.amazon.com`root@amazon.com 2008-04-03 #13

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1786755129

Same first word

biddersoft.com

Similar names

tisbedford.com

DNS History

12 records (9 active, 3 former)

●NSdns-external-master.amazon.com2015-08-19 → 2026-08-15 · 2 obs

● 2015-08-19 13:52:08
● 2026-08-15 01:12:40

○NSns-1.amazon.com2015-08-19 → 2018-01-26 · 3 obs

● 2015-08-19 13:52:08
● 2018-01-26 00:14:50
○ 2026-08-15 01:12:40

○NSns-2.amazon.com2015-08-19 → 2018-01-26 · 3 obs

● 2015-08-19 13:52:08
● 2018-01-26 00:14:50
○ 2026-08-15 01:12:40

○NSns-3.amazon.com2015-08-19 → 2018-01-26 · 3 obs

● 2015-08-19 13:52:08
● 2018-01-26 00:14:50
○ 2026-08-15 01:12:40

●NSns1.amzndns.co.uk2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns1.amzndns.com2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns1.amzndns.net2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns1.amzndns.org2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns2.amzndns.co.uk2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns2.amzndns.com2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns2.amzndns.net2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

●NSns2.amzndns.org2026-08-15 → 2026-08-15 · 2 obs

○ 2018-01-26 00:14:50
● 2026-08-15 01:12:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
biddersoft.com	ns1.amzndns.org, ns2.amzndns.org, ns1.amzndns.co.uk, ns2.amzndns.co.uk...	4 records

✅ Authoritative Response

Server:156.154.65.10

NS records: ns1.amzndns.org, ns2.amzndns.org, ns1.amzndns.co.uk, ns2.amzndns.co.uk, ns1.amzndns.net, ns2.amzndns.net, ns1.amzndns.com, ns2.amzndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biddersoft.com (unsigned zone)

⏱️ Timing

Total: 596ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	8	`ns1.amzndns.co.uk, ns1.amzndns.com...`
TXT	1	`v=spf1 -all`
SOA	1	`dns-external-master.amazon.com root.amaz`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.amzndns.com, ns1.amzndns.com, ns2.amzndns.com...)

Analysis

Name Servers

The DNS delegation for biddersoft.com covers 9 name servers: dns-external-master.amazon.com, ns1.amzndns.com, ns2.amzndns.com and 6 more.

The name servers of biddersoft.com overlap at least partially with those of other domains — among them audibleamazon.com, amazonaz.com, amazahn.com and two more.

These name servers commonly appear in delegations together with ns2.amzndns.net, ns2.amzndns.org, ns2.amzndns.co.uk and 7 other.

Hostnames that resolve to two IP addresses:

ns1.amzndns.com maps to two IP addresses — 156.154.64.10 and 2001:502:f3ff::10.

ns2.amzndns.com maps to two IP addresses — 156.154.68.10 and 2610:a1:1016::10.

ns1.amzndns.net maps to two IP addresses — 156.154.65.10 and 2610:a1:1014::10.

ns2.amzndns.net maps to two IP addresses — 156.154.69.10 and 2610:a1:1017::10.

ns1.amzndns.org maps to two IP addresses — 156.154.66.10 and 2610:a1:1015::10.

ns2.amzndns.org maps to two IP addresses — 156.154.150.1 and 2610:a1:31d1::53.

ns1.amzndns.co.uk maps to two IP addresses — 156.154.67.10 and 2001:502:4612::10.

ns2.amzndns.co.uk maps to two IP addresses — 204.74.120.1 and 2610:a1:32d1::53.

Hosts with just one IP address:

dns-external-master.amazon.com points to the IP address 204.74.108.1.