`cdn.codechef.com`

CNAME	`d3gjrw9ge6kayn.cloudfront.net`
DNSSEC	⚠️ Not signed
A	2600:9000:200b:4000:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:4a00:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:6a00:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:7600:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:9e00:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:ba00:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:ca00:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	2600:9000:200b:e000:1e:be9c:9fc0:93a1^{🇺🇸 Amazon2600:9000:200b::/48 - CloudFront}
A	13.33.109.11^{🇺🇸 Amazon13.33.109.0/24 - Cloudfront}
A	13.33.109.68^{🇺🇸 Amazon13.33.109.0/24 - Cloudfront}
A	13.33.109.77^{🇺🇸 Amazon13.33.109.0/24 - Cloudfront}
A	13.33.109.82^{🇺🇸 Amazon13.33.109.0/24 - Cloudfront}
NS	`ns-526.awsdns-01.net` ⭐
		A	2600:9000:5302:e00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-526.awsdns-01.net`
		A	205.251.194.14^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-526.awsdns-01.net`
NS	`ns-1478.awsdns-56.org`
		A	2600:9000:5305:c600::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1478.awsdns-56.org`
		A	205.251.197.198^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1478.awsdns-56.org`
NS	`ns-1950.awsdns-51.co.uk`
		A	2600:9000:5307:9e00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1950.awsdns-51.co.uk`
		A	205.251.199.158^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1950.awsdns-51.co.uk`
NS	`ns-499.awsdns-62.com`
		A	2600:9000:5301:f300::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-499.awsdns-62.com`
		A	205.251.193.243^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-499.awsdns-62.com`
HTTPS	HTTP/2
SOA	`ns-526.awsdns-01.net`awsdns-hostmaster@amazon.com serial=1

`codechef.com`

	DNSSEC	⚠️ Not signed
	A	34.197.253.62^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
	A	52.7.242.210^{🇺🇸 Amazon52.4.0.0/14 EC2 IAD prefix}
	A	54.152.177.22^{🇺🇸 Amazon54.152.0.0/16 EC2 IAD prefix}
	NS	`lex.ns.cloudflare.com` ⭐
	NS	`vera.ns.cloudflare.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
	MX	`aspmx2.googlemail.com`⁽³⁰⁾
	MX	`aspmx3.googlemail.com`⁽³⁰⁾
	MX	`aspmx4.googlemail.com`⁽³⁰⁾
	MX	`aspmx5.googlemail.com`⁽³⁰⁾
	TXT	`ahrefs-site-verification_04e642c9c46bc98dafe11b176cc6d5a993ed2012f33afb1ed8af...`
	TXT	`ahrefs-site-verification_6e889e2ee688c269d990d481ac87fd8b38f5dc138e8b6e0c14fb...`
	TXT	`github-verification=3Vz9HpXqx9n7sDhSFSRP3B3mnz8Hk9FhfXtA6BEZ`
	TXT	`google-site-verification=WwEq-x8nLowpMamlJcCxqZF6q_GI65cLfnrBLlMjQ_k`
	TXT	`google-site-verification=aofj5h49H6X_5kiZ0iwcqEBsQ292cAjxqXDolg7zO_Y`
	TXT	`google-site-verification=c1sCqtaSYtvVbMlr-FHZR0M-TNm4455mXnp6BNqRuWI`
	TXT	`v=spf1 +a +mx a:webserver.codechef.com include:amazonses.com include:_spf.goo...`
	TXT	`zoho-verification=zb09737561.zmverify.zoho.com`
	SOA	`lex.ns.cloudflare.com`dns@cloudflare.com serial=2403774000

WOT: SAFE (93/100)
rank #18989 globally
rank #9368 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #16,488

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DNS History

1 record (1 active, 0 former)

●CNAMEd3gjrw9ge6kayn.cloudfront.net2026-04-08 → 2026-05-13 · 2 obs

● 2026-04-08 12:39:06
● 2026-05-13 11:45:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
codechef.com	vera.ns.cloudflare.com, lex.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.147

NS records: vera.ns.cloudflare.com, lex.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codechef.com (unsigned zone)

⏱️ Timing

Total: 284ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`d3gjrw9ge6kayn.cloudfront.net`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

cdn.codechef.com points to twelve IP numbers in increasing order: 2600:9000:200b:4000:1e:be9c:9fc0:93a1, 2600:9000:200b:4a00:1e:be9c:9fc0:93a1, 2600:9000:200b:6a00:1e:be9c:9fc0:93a1, 2600:9000:200b:7600:1e:be9c:9fc0:93a1, 2600:9000:200b:9e00:1e:be9c:9fc0:93a1, 2600:9000:200b:ba00:1e:be9c:9fc0:93a1, 2600:9000:200b:ca00:1e:be9c:9fc0:93a1, 2600:9000:200b:e000:1e:be9c:9fc0:93a1, 13.33.109.11, 13.33.109.68, 13.33.109.77 and 13.33.109.82.

Name Servers

cdn.codechef.com is delegated to four name servers: ns-499.awsdns-62.com, ns-526.awsdns-01.net, ns-1478.awsdns-56.org and ns-1950.awsdns-51.co.uk.

Host names with two IP numbers:

ns-499.awsdns-62.com points to 2600:9000:5301:f300::1 and 205.251.193.243; ns-526.awsdns-01.net points to 2600:9000:5302:e00::1 and 205.251.194.14; ns-1478.awsdns-56.org points to 2600:9000:5305:c600::1 and 205.251.197.198; ns-1950.awsdns-51.co.uk points to 2600:9000:5307:9e00::1 and 205.251.199.158.

cdn.codechef.com - robtex.com

cdn.codechef.com

codechef.com