codeandtheory.org - dns.ninja

`codeandtheory.org`

DNSSEC	⚠️ Not signed
NS	`ns-1918.awsdns-47.co.uk` ⭐
		A	2600:9000:5307:7e00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1918.awsdns-47.co.uk`
		A	205.251.199.126^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1918.awsdns-47.co.uk`
NS	`ns-1339.awsdns-39.org`
		A	2600:9000:5305:3b00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1339.awsdns-39.org`
		A	205.251.197.59^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1339.awsdns-39.org`
NS	`ns-282.awsdns-35.com`
		A	2600:9000:5301:1a00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-282.awsdns-35.com`
		A	205.251.193.26^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-282.awsdns-35.com`
NS	`ns-850.awsdns-42.net`
		A	2600:9000:5303:5200::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-850.awsdns-42.net`
		A	205.251.195.82^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-850.awsdns-42.net`
SOA	`ns-1918.awsdns-47.co.uk`awsdns-hostmaster@amazon.com serial=1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1782400053

Same first word

codeandtheory.nyc

codeandtheory.org

codeandtheory.net

codeandtheory.com

codeandtheory.tv

DNS History

9 records (4 active, 5 former)

●NSns-1339.awsdns-39.org2026-02-14 → 2026-06-25 · 3 obs

○ 2016-12-23 13:21:40
● 2026-02-14 16:57:18
● 2026-06-25 15:38:06

●NSns-1918.awsdns-47.co.uk2026-02-14 → 2026-06-25 · 3 obs

○ 2016-12-23 13:21:40
● 2026-02-14 16:57:18
● 2026-06-25 15:38:06

●NSns-282.awsdns-35.com2026-02-14 → 2026-06-25 · 3 obs

○ 2016-12-23 13:21:40
● 2026-02-14 16:57:18
● 2026-06-25 15:38:06

●NSns-850.awsdns-42.net2026-02-14 → 2026-06-25 · 3 obs

○ 2016-12-23 13:21:40
● 2026-02-14 16:57:18
● 2026-06-25 15:38:06

○NSns03.domaincontrol.com2015-07-05 → 2016-12-23 · 4 obs

● 2015-07-05 16:17:32
● 2016-12-23 13:21:40
○ 2026-02-14 16:57:18
○ 2026-06-25 15:38:06

○NSns04.domaincontrol.com2015-07-05 → 2016-12-23 · 4 obs

● 2015-07-05 16:17:32
● 2016-12-23 13:21:40
○ 2026-02-14 16:57:18
○ 2026-06-25 15:38:06

○MXmailstore1.secureserver.net2015-07-05 → 2026-02-14 · 4 obs

● 2015-07-05 16:17:32
● 2026-02-14 20:39:02
○ 2026-05-02 15:07:02
○ 2026-06-25 15:38:06

○MXsmtp.secureserver.net2015-07-05 → 2026-02-14 · 4 obs

● 2015-07-05 16:17:32
● 2026-02-14 20:39:02
○ 2026-05-02 15:07:02
○ 2026-06-25 15:38:06

○A209.131.123.672015-07-05 → 2026-02-14 · 4 obs

● 2015-07-05 16:17:32
● 2026-02-14 20:39:02
○ 2026-05-02 15:07:02
○ 2026-06-25 15:38:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org	-
codeandtheory.org	ns-850.awsdns-42.net, ns-282.awsdns-35.com, ns-1918.awsdns-47.co.uk, ns-1339.awsdns-39.org	2 records

✅ Authoritative Response

Server:205.251.197.59

NS records: ns-850.awsdns-42.net, ns-282.awsdns-35.com, ns-1918.awsdns-47.co.uk, ns-1339.awsdns-39.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codeandtheory.org (unsigned zone)

⏱️ Timing

Total: 452ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1339.awsdns-39.org, ns-1918.awsdns-47.co.uk...`
SOA	1	`ns-1918.awsdns-47.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-1339.awsdns-39.org, ns-1339.awsdns-39.org)

Analysis

Name Servers

codeandtheory.org has four authoritative name servers: ns-282.awsdns-35.com, ns-850.awsdns-42.net, ns-1339.awsdns-39.org and ns-1918.awsdns-47.co.uk.

codeandtheory.org shares at least some of its name servers with other domains, including cybertechapps.com, vanecketf.com, clubschiff-aidaluna.de and two others.

These name servers are frequently paired with the name servers ns1-24-ap-southeast-2.ec2-rdns.amazonaws.com, ns2-24-ap-southeast-2.ec2-rdns.amazonaws.com, ns3-24-ap-southeast-2.ec2-rdns.amazonaws.com and two others.

The host names ns-282.awsdns-35.com, ns-850.awsdns-42.net, ns-1339.awsdns-39.org and ns-1918.awsdns-47.co.uk each resolve to two IP addresses: ns-282.awsdns-35.com resolves to 205.251.193.26 and 2600:9000:5301:1a00::1; ns-850.awsdns-42.net resolves to 205.251.195.82 and 2600:9000:5303:5200::1; ns-1339.awsdns-39.org resolves to 205.251.197.59 and 2600:9000:5305:3b00::1; ns-1918.awsdns-47.co.uk resolves to 205.251.199.126 and 2600:9000:5307:7e00::1.