`api.tournamentbuilders.com`

DNSSEC	⚠️ Not signed
A	13.52.63.251^{🇺🇸 Amazon13.52.0.0/16 EC2 SFO prefix}
		PTR	`ec2-13-52-63-251.us-west-1.compute.amazonaws.com`
A	13.57.152.252^{🇺🇸 Amazon13.57.0.0/16 EC2 SFO prefix}

`tournamentbuilders.com`

	DNSSEC	⚠️ Not signed
	A	3.170.19.61^{🇺🇸 Amazon3.170.19.0/24}
	A	3.170.19.73^{🇺🇸 Amazon3.170.19.0/24}
	A	3.170.19.95^{🇺🇸 Amazon3.170.19.0/24}
	A	3.170.19.123^{🇺🇸 Amazon3.170.19.0/24}
	NS	`ns-1452.awsdns-53.org` ⭐
	NS	`ns-171.awsdns-21.com`
	NS	`ns-1835.awsdns-37.co.uk`
	NS	`ns-765.awsdns-31.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	MX	`7swzkbc4ggh3mldif6venkbeqjjs6mcm4qgxsgl5cog6zevoxt6q.mx-verification.google.com`⁽¹⁵⁾
	TXT	`google-site-verification=UK6_iy4n9W-G_j_SmmqM27otqIP9NeoDJE2rIucCHqs`
	SOA	`ns-1452.awsdns-53.org`awsdns-hostmaster@amazon.com serial=1

Same first word

api.travel

api.ec

api.am

api.sg

api.ai

api.world

api.money

api.directory

api.tips

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api.tatamotors

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api.ltd

api.delivery

api.dev

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api.audio

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api.direct

api.app

api.ch

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api.events

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api.pl

api.com.my

api.net.co

api.co.uk

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DNS History

8 records (2 active, 6 former)

●A13.52.63.2512026-03-10 → 2026-03-10 · 2 obs

○ 2026-03-10 04:21:44
● 2026-03-10 19:01:34

○A13.52.85.2262026-02-19 → 2026-03-10 · 2 obs

○ 2026-02-19 05:08:36
○ 2026-03-10 19:01:34

○A13.56.187.1612026-02-19 → 2026-02-20 · 4 obs

● 2026-02-19 05:08:36
● 2026-02-20 08:41:50
○ 2026-03-10 04:21:44
○ 2026-03-10 19:01:34

●A13.57.152.2522026-03-10 → 2026-03-10 · 2 obs

○ 2026-03-10 04:21:44
● 2026-03-10 19:01:34

○A52.9.238.922026-02-19 → 2026-02-20 · 4 obs

● 2026-02-19 05:08:36
● 2026-02-20 08:41:50
○ 2026-03-10 04:21:44
○ 2026-03-10 19:01:34

○A54.241.201.1292026-03-10 → 2026-03-10 · 3 obs

○ 2026-02-20 08:41:50
● 2026-03-10 04:21:44
○ 2026-03-10 19:01:34

○A54.241.78.1742026-02-19 → 2026-03-10 · 2 obs

○ 2026-02-19 05:08:36
○ 2026-03-10 19:01:34

○A54.67.114.632026-03-10 → 2026-03-10 · 3 obs

○ 2026-02-20 08:41:50
● 2026-03-10 04:21:44
○ 2026-03-10 19:01:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tournamentbuilders.com	ns-171.awsdns-21.com, ns-765.awsdns-31.net, ns-1835.awsdns-37.co.uk, ns-1452.awsdns-53.org	1 record

✅ Authoritative Response

Server: 205.251.197.172

NS records: ns-171.awsdns-21.com, ns-765.awsdns-31.net, ns-1835.awsdns-37.co.uk, ns-1452.awsdns-53.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tournamentbuilders.com (unsigned zone)

⏱️ Timing

Total: 307ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`52.52.240.237, 13.52.42.211`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-171.awsdns-21.com)

Analysis

IP Addresses

api.tournamentbuilders.com points to two IP numbers: 13.52.63.251 and 13.57.152.252.

api.tournamentbuilders.com - robtex.com