exploratorium.ch - dns.ninja

`exploratorium.ch`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:3f8e^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9254^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.63.142^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.84^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`blair.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2679^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c279^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`blair.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2279^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`blair.ns.cloudflare.com`
		A	108.162.194.121^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	162.159.38.121^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	172.64.34.121^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
NS	`graham.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bab^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`graham.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ab^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`graham.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ab^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`graham.ns.cloudflare.com`
		A	108.162.193.171^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`graham.ns.cloudflare.com`
		A	172.64.33.171^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`graham.ns.cloudflare.com`
		A	173.245.59.171^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`graham.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.63.142, 172.67.146.84
		IPv6 hints	2606:4700:3030::6815:3f8e, 2606:4700:3037::ac43:9254
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=192, name=cloudflare-ech.com
SOA	`blair.ns.cloudflare.com`dns@cloudflare.com serial=2411941741

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-08-12 #14

Same first word

DNS History

9 records (6 active, 3 former)

●NSblair.ns.cloudflare.com2026-08-12 → 2026-08-12 · 2 obs

○ 2020-03-11 11:14:50
● 2026-08-12 05:31:34

●NSgraham.ns.cloudflare.com2026-08-12 → 2026-08-12 · 2 obs

○ 2020-03-11 11:14:50
● 2026-08-12 05:31:34

○NSns.telemedia.ch2015-08-22 → 2020-03-11 · 3 obs

● 2015-08-22 09:17:56
● 2020-03-11 11:14:50
○ 2026-08-12 05:31:34

○NSns2.telemedia.ch2015-08-22 → 2020-03-11 · 3 obs

● 2015-08-22 09:17:56
● 2020-03-11 11:14:50
○ 2026-08-12 05:31:34

○NSns3.telemedia.ch2015-08-22 → 2020-03-11 · 3 obs

● 2015-08-22 09:17:56
● 2020-03-11 11:14:50
○ 2026-08-12 05:31:34

●A104.21.63.1422026-08-12 → 2026-08-12 · 1 obs

● 2026-08-12 05:31:34

●A172.67.146.842026-08-12 → 2026-08-12 · 1 obs

● 2026-08-12 05:31:34

●A2606:4700:3030::6815:3f8e2026-08-12 → 2026-08-12 · 1 obs

● 2026-08-12 05:31:34

●A2606:4700:3037::ac43:92542026-08-12 → 2026-08-12 · 1 obs

● 2026-08-12 05:31:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	d.nic.ch, f.nic.ch, a.nic.ch, b.nic.ch...	-
exploratorium.ch	graham.ns.cloudflare.com, blair.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.121

NS records: graham.ns.cloudflare.com, blair.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for exploratorium.ch (unsigned zone)

⏱️ Timing

Total: 259ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.84, 104.21.63.142`
AAAA	2	`2606:4700:3037::ac43:9254, 2606:4700:3030::6815:3f8e`
NS	2	`blair.ns.cloudflare.com, graham.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`blair.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

exploratorium.ch points to the four IP addresses 104.21.63.142, 172.67.146.84, 2606:4700:3030::6815:3f8e and 2606:4700:3037::ac43:9254.

hsecards.com, www-cam(0x77686f7265)s-tv.(0x706f726e)proxy.info, walo.us and two other host names share IP numbers with exploratorium.ch.

Name Servers

The NS records for exploratorium.ch delegate to blair.ns.cloudflare.com and graham.ns.cloudflare.com.

exploratorium.ch uses the same name servers as several other domains — among them sap.how, egtchemie.ch, articleshub-medaav.com and two more.

There is at least partial name server overlap between exploratorium.ch and other domains — winkelbeveiliging.nl, odkclan.it, 1690kk.com and two more among them.

These name servers are routinely deployed together with the name servers edward.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

blair.ns.cloudflare.com maps to 108.162.194.121, 162.159.38.121, 172.64.34.121 and 3 additional IP addresses.

graham.ns.cloudflare.com maps to 108.162.193.171, 172.64.33.171, 173.245.59.171 and 3 additional IP addresses.