exploratorium.org - dns.ninja

`exploratorium.org`

DNSSEC	⚠️ Not signed
A	192.174.2.181^{🇺🇸 CALREN-DC192.174.2.0/24 Exploratorium}
NS	`ns-1959.awsdns-52.co.uk` ⭐
		A	2600:9000:5307:a700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1959.awsdns-52.co.uk`
		A	205.251.199.167^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1959.awsdns-52.co.uk`
NS	`ns-139.awsdns-17.com`
		A	2600:9000:5300:8b00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-139.awsdns-17.com`
		A	205.251.192.139^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-139.awsdns-17.com`
NS	`ns-1394.awsdns-46.org`
		A	2600:9000:5305:7200::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1394.awsdns-46.org`
		A	205.251.197.114^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1394.awsdns-46.org`
NS	`ns-520.awsdns-01.net`
		A	2600:9000:5302:800::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-520.awsdns-01.net`
		A	205.251.194.8^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-520.awsdns-01.net`
SOA	`ns-1959.awsdns-52.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=1786415227

WOT: SAFE (79/100)

Subdomains

www.exploratorium.org

Same first word

DNS History

15 records (5 active, 10 former)

○NSisaac.exploratorium.edu2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

○NSjoule.exploratorium.edu2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

●NSns-139.awsdns-17.com2016-03-03 → 2026-08-11 · 3 obs

○ 2015-11-25 12:09:30
● 2016-03-03 08:47:06
● 2026-08-11 02:48:52

●NSns-1394.awsdns-46.org2016-03-03 → 2026-08-11 · 3 obs

○ 2015-11-25 12:09:30
● 2016-03-03 08:47:06
● 2026-08-11 02:48:52

●NSns-1959.awsdns-52.co.uk2016-03-03 → 2026-08-11 · 3 obs

○ 2015-11-25 12:09:30
● 2016-03-03 08:47:06
● 2026-08-11 02:48:52

●NSns-520.awsdns-01.net2016-03-03 → 2026-08-11 · 3 obs

○ 2015-11-25 12:09:30
● 2016-03-03 08:47:06
● 2026-08-11 02:48:52

○NSqt.exploratorium.edu2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

○MXalt1.aspmx.l.google.com2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

○MXalt2.aspmx.l.google.com2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

○MXalt3.aspmx.l.google.com2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

○MXalt4.aspmx.l.google.com2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

○MXaspmx.l.google.com2015-06-30 → 2015-11-25 · 4 obs

● 2015-06-30 22:21:12
● 2015-11-25 12:09:30
○ 2016-03-03 08:47:06
○ 2026-08-11 02:48:52

●A192.174.2.1812026-02-16 → 2026-08-11 · 3 obs

○ 2017-05-14 07:07:56
● 2026-02-16 12:06:04
● 2026-08-11 02:48:52

○A192.174.3.1812017-05-14 → 2017-05-14 · 4 obs

○ 2016-07-14 02:36:12
● 2017-05-14 07:07:56
○ 2026-02-16 12:06:04
○ 2026-08-11 02:48:52

○A209.237.226.2482015-06-30 → 2016-07-14 · 4 obs

● 2015-06-30 22:21:12
● 2016-07-14 02:36:12
○ 2017-05-14 07:07:56
○ 2026-08-11 02:48:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
exploratorium.org	ns-139.awsdns-17.com, ns-1959.awsdns-52.co.uk, ns-1394.awsdns-46.org, ns-520.awsdns-01.net	2 records

✅ Authoritative Response

Server:205.251.192.139

NS records: ns-139.awsdns-17.com, ns-1959.awsdns-52.co.uk, ns-1394.awsdns-46.org, ns-520.awsdns-01.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for exploratorium.org (unsigned zone)

⏱️ Timing

Total: 422ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.174.2.181`
NS	4	`ns-139.awsdns-17.com, ns-1394.awsdns-46.org...`
SOA	1	`ns-1959.awsdns-52.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-1394.awsdns-46.org, ns-1394.awsdns-46.org)

Analysis

Hierarchy

The domain www.exploratorium.org falls under the parent exploratorium.org.

IP Addresses

exploratorium.org resolves to just one IP address, 192.174.2.181.

Other host names — www.exploratorium.org, exploratorium.com, explo.us and www.exploratorium.com — share IP numbers with exploratorium.org.

Name Servers

The NS records for exploratorium.org point to four name servers: ns-139.awsdns-17.com, ns-520.awsdns-01.net, ns-1394.awsdns-46.org and ns-1959.awsdns-52.co.uk.

At least some of exploratorium.org's name servers are shared with other domains, for example 211.65.161.in-addr.arpa, ytria.com, bookings.hu and two more.

It is common for these name servers to be used in conjunction with the name servers ns-508.awsdns-63.com, ns-716.awsdns-25.net and ns-1288.awsdns-33.org.

Four hostnames, each resolving to a pair of IP addresses: ns-139.awsdns-17.com directs to 205.251.192.139 and 2600:9000:5300:8b00::1; ns-520.awsdns-01.net directs to 205.251.194.8 and 2600:9000:5302:800::1; ns-1394.awsdns-46.org directs to 205.251.197.114 and 2600:9000:5305:7200::1; ns-1959.awsdns-52.co.uk directs to 205.251.199.167 and 2600:9000:5307:a700::1.