back.ch - dns.ninja

`back.ch`

DNSSEC	⚠️ Not signed
A	136.243.163.179^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
		PTR	`adomino.net`
NS	`ns1.day.biz` ⭐
		A	2001:8d8:fe:53:217:160:80:161^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.de`
		A	217.160.80.161^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.de`
NS	`ns2.day.biz`
		A	2607:f1c0:fe:53:185:132:35:161^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-ix2.ui-dns.org`
		A	185.132.35.161^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-ix2.ui-dns.org`
SOA	`ns1.day.biz`hostmaster@day.biz 2024-09-27 #1

`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 2026-06-14 #19

Same first word

back.money

back.com.cn

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back.in

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DNS History

5 records (3 active, 2 former)

●NSns1.day.biz2015-08-21 → 2026-06-14 · 2 obs

● 2015-08-21 08:04:34
● 2026-06-14 08:19:30

●NSns2.day.biz2015-08-21 → 2026-06-14 · 2 obs

● 2015-08-21 08:04:34
● 2026-06-14 08:19:30

○MXmail.back.ch2015-08-21 → 2017-06-14 · 4 obs

● 2015-08-21 08:04:34
● 2017-06-14 02:19:44
○ 2026-03-22 01:25:40
○ 2026-06-14 08:19:30

●A136.243.163.1792026-03-22 → 2026-06-14 · 3 obs

○ 2017-06-14 02:19:44
● 2026-03-22 01:25:40
● 2026-06-14 08:19:30

○A85.236.47.2182015-08-21 → 2017-06-14 · 4 obs

● 2015-08-21 08:04:34
● 2017-06-14 02:19:44
○ 2026-03-22 01:25:40
○ 2026-06-14 08:19:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	10 records
back.ch	ns2.day.biz, ns1.day.biz	-

✅ Authoritative Response

Server:217.160.80.161

NS records: ns2.day.biz, ns1.day.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for back.ch (unsigned zone)

⏱️ Timing

Total: 728ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`136.243.163.179`
NS	2	`ns1.day.biz, ns2.day.biz`
SOA	1	`ns1.day.biz hostmaster.day.biz`

📌 Glue Records Collected

Total: 10

In-bailiwick: 10 (a.nic.ch, a.nic.ch, b.nic.ch...)

Analysis

IP Addresses

back.ch points to a single IP number: 136.243.163.179.

Additional host names — (0x736578)show.us, webtablet.cn, debbie.at and two others — share IP numbers with back.ch.

Name Servers

Two name servers handle the delegation for back.ch: ns1.day.biz and ns2.day.biz.

back.ch shares its name server setup with other domains, including ostern.org, funy.de, paris.de and two others.

back.ch has a partial name server overlap with other domains — among them bittorrent.ch and bittorrent.at.

It is common to see these name servers used together with name servers ns1.bittorrent.eu and ns2.bittorrent.eu.

ns1.day.biz and ns2.day.biz both carry two IP addresses. The A records for ns1.day.biz are 217.160.80.161 and 2001:8d8:fe:53:217:160:80:161; the A records for ns2.day.biz are 185.132.35.161 and 2607:f1c0:fe:53:185:132:35:161.