staging.cliffsnotes.com - dns.ninja

`staging.cliffsnotes.com`

CNAME	`d5mu87cg9nv0u.cloudfront.net`
DNSSEC	⚠️ Not signed
A	3.167.99.2^{🇺🇸 Amazon3.167.96.0/21}
		PTR	`server-3-167-99-2.iad55.r.cloudfront.net`
A	3.167.99.34^{🇺🇸 Amazon3.167.96.0/21}
A	3.167.99.62^{🇺🇸 Amazon3.167.96.0/21}
A	3.167.99.69^{🇺🇸 Amazon3.167.96.0/21}
NS	`ns-769.awsdns-32.net` ⭐
		A	2600:9000:5303:100::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-769.awsdns-32.net`
		A	205.251.195.1^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-769.awsdns-32.net`
NS	`ns-1516.awsdns-61.org`
		A	2600:9000:5305:ec00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1516.awsdns-61.org`
		A	205.251.197.236^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1516.awsdns-61.org`
NS	`ns-1981.awsdns-55.co.uk`
		A	2600:9000:5307:bd00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1981.awsdns-55.co.uk`
		A	205.251.199.189^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1981.awsdns-55.co.uk`
NS	`ns-249.awsdns-31.com`
		A	2600:9000:5300:f900::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-249.awsdns-31.com`
		A	205.251.192.249^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-249.awsdns-31.com`
HTTPS	HTTP/2
SOA	`ns-769.awsdns-32.net`awsdns-hostmaster@amazon.com serial=1

`cliffsnotes.com`

DNSSEC	⚠️ Not signed
A	104.18.39.119^{Cloudflare104.18.39.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.64.148.137^{🇺🇸 Cloudflare172.64.148.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`langston.ns.cloudflare.com` ⭐
NS	`liv.ns.cloudflare.com`
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	`globalsign-domain-verification=28DB9FCEFBA2745B7F57EF614E9B8F17`
TXT	`globalsign-domain-verification=D151191065D1DFB61FF73EF164ECC37A`
TXT	`google-site-verification=iujjMUAxV_bg2LRj8PkpLpD8iSYrUDl8zEJUG91aks0`
TXT	`v=spf1 a mx include:_spf.google.com include:mail.zendesk.com include:amazonse...`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.39.119, 172.64.148.137
SOA	`langston.ns.cloudflare.com`dns@cloudflare.com serial=2404609503

rank #14802 globally
rank #7242 in the tld
🔒 HSTS Preload (+subdomains)
📈 Tranco rank: #27,651

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DNS History

1 record (1 active, 0 former)

●CNAMEd5mu87cg9nv0u.cloudfront.net2026-06-19 → 2026-06-19 · 2 obs

● 2026-06-19 14:31:18
● 2026-06-19 14:31:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cliffsnotes.com	liv.ns.cloudflare.com, langston.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.252

NS records: liv.ns.cloudflare.com, langston.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cliffsnotes.com (unsigned zone)

⏱️ Timing

Total: 90ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`d5mu87cg9nv0u.cloudfront.net`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

staging.cliffsnotes.com points to the four IP addresses 3.167.99.2, 3.167.99.34, 3.167.99.62 and 3.167.99.69.

Two other host names, along with www.vital.ai, testgis.com and cafevaso.com, also share IP numbers with staging.cliffsnotes.com.

Name Servers

The NS records for staging.cliffsnotes.com point to four name servers: ns-249.awsdns-31.com, ns-769.awsdns-32.net, ns-1516.awsdns-61.org and ns-1981.awsdns-55.co.uk.

The name servers of staging.cliffsnotes.com overlap at least partially with those of other domains — among them henyosoftware.com, thermalcat.com, d1yu2eos3448q5.cloudfront.net and two more.

Each of the four hosts ns-249.awsdns-31.com, ns-769.awsdns-32.net, ns-1516.awsdns-61.org and ns-1981.awsdns-55.co.uk has two IP addresses. ns-249.awsdns-31.com points to 205.251.192.249 and 2600:9000:5300:f900::1. ns-769.awsdns-32.net points to 205.251.195.1 and 2600:9000:5303:100::1. ns-1516.awsdns-61.org points to 205.251.197.236 and 2600:9000:5305:ec00::1. ns-1981.awsdns-55.co.uk points to 205.251.199.189 and 2600:9000:5307:bd00::1.