`api.s.calendly.com`

DNSSEC	⚠️ Not signed
A	35.165.30.9^{🇺🇸 Amazon35.160.0.0/13 EC2 PDX prefix}
		PTR	`ec2-35-165-30-9.us-west-2.compute.amazonaws.com`
A	54.69.21.216^{🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix}
A	54.148.233.230^{🇺🇸 Amazon54.148.0.0/15 EC2 PDX prefix}

`s.calendly.com`

	DNSSEC	⚠️ Not signed
	NS	`ns-880.awsdns-46.net` ⭐
	NS	`ns-1066.awsdns-05.org`
	NS	`ns-1697.awsdns-20.co.uk`
	NS	`ns-306.awsdns-38.com`
	SOA	`ns-880.awsdns-46.net`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (61/100)

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DNS History

3 records (3 active, 0 former)

●A35.165.30.92026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 21:49:30
● 2026-03-26 01:24:22

●A54.148.233.2302026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 21:49:30
● 2026-03-26 01:24:22

●A54.69.21.2162026-02-25 → 2026-03-26 · 2 obs

● 2026-02-25 21:49:30
● 2026-03-26 01:24:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
calendly.com	hope.ns.cloudflare.com, roan.ns.cloudflare.com	12 records
s.calendly.com	ns-1066.awsdns-05.org, ns-1697.awsdns-20.co.uk, ns-306.awsdns-38.com, ns-880.awsdns-46.net	-

✅ Authoritative Response

Server:205.251.193.50

NS records: ns-1066.awsdns-05.org, ns-1697.awsdns-20.co.uk, ns-306.awsdns-38.com, ns-880.awsdns-46.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for s.calendly.com (unsigned zone)

⏱️ Timing

Total: 560ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`54.69.21.216, 35.165.30.9...`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (hope.ns.cloudflare.com, hope.ns.cloudflare.com, hope.ns.cloudflare.com...)

Analysis

IP Addresses

Three IP numbers (35.165.30.9, 54.69.21.216 and 54.148.233.230) are pointed to by api.s.calendly.com.

other host names for instance api.events.api.biltrewards.com, white-fir.cd.segmentapis.com, ec2-54-148-233-230.us-west-2.compute.amazonaws.com, api.cdp.staging.vibe.co and api.s.dreamdata.io share IP numbers with api.s.calendly.com.

api.s.calendly.com - robtex.com