`api.skillbuilder.io`

DNSSEC	⚠️ Not signed
A	34.237.175.40^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
		PTR	`ec2-34-237-175-40.compute-1.amazonaws.com`

`skillbuilder.io`

	DNSSEC	⚠️ Not signed
	A	3.162.112.17^{🇺🇸 Amazon3.162.112.0/21}
	A	3.162.112.19^{🇺🇸 Amazon3.162.112.0/21}
	A	3.162.112.100^{🇺🇸 Amazon3.162.112.0/21}
	A	3.162.112.116^{🇺🇸 Amazon3.162.112.0/21}
	NS	`ns-1303.awsdns-34.org` ⭐
	NS	`ns-1639.awsdns-12.co.uk`
	NS	`ns-173.awsdns-21.com`
	NS	`ns-718.awsdns-25.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⁾
	TXT	`amazonses:3e8qDqUUJVV4/fGNenLtxBy4J40IAfimwYwmzpJv6qA=`
	TXT	`google-site-verification=1hII9FifrCnkYkgYiBTuhPHLfL1p0rCCyiEPbEcREeU`
	TXT	`google-site-verification=Zp6N03AUFJD1C_rEXWjEfszcFkPqoe2WFJ101TKev08`
	TXT	`v=spf1 include:_spf.google.com include:amazonses.com ~all`
	SOA	`ns-1303.awsdns-34.org`awsdns-hostmaster@amazon.com serial=1

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DNS History

1 record (1 active, 0 former)

●A34.237.175.402026-04-04 → 2026-07-05 · 2 obs

● 2026-04-04 11:05:52
● 2026-07-05 08:41:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	b0.nic.io, a0.nic.io, a2.nic.io, c0.nic.io	-
skillbuilder.io	ns-173.awsdns-21.com, ns-1303.awsdns-34.org, ns-718.awsdns-25.net, ns-1639.awsdns-12.co.uk	-

✅ Authoritative Response

Server:205.251.192.173

NS records: ns-173.awsdns-21.com, ns-1303.awsdns-34.org, ns-718.awsdns-25.net, ns-1639.awsdns-12.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skillbuilder.io (unsigned zone)

⏱️ Timing

Total: 880ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`34.237.175.40`

Analysis

IP Addresses

api.skillbuilder.io resolves to one IP address: 34.237.175.40.

api.skillbuilder.io - robtex.com