server20.ch - dns.ninja

`server20.ch`

DNSSEC	⚠️ Not signed
A	2a0e:f0c0:1:20::1:3009^{🇨🇭 FREY-AS2a0e:f0c0::/29}
A	185.117.168.229^{🇨🇭 FREY-AS185.117.168.0/22 OptimaNet Schweiz AG}
NS	`ns01.hostfactory.ch` ⭐
		A	2a0e:f0c0:1:13:c::10^{🇨🇭 FREY-AS2a0e:f0c0::/29}
			PTR	`ns01.hostfactory.ch`
		A	185.117.168.140^{🇨🇭 FREY-AS185.117.168.0/22 OptimaNet Schweiz AG}
			PTR	`ns01.hostfactory.ch`
NS	`ns02.hostfactory.ch`
		A	2a03:da41:d::11^{🇨🇭 SERVERBASE2a03:da41::/32 ServerBase AG, Switzerland}
			PTR	`ns02.hostfactory.ch`
		A	156.67.10.18^{🇨🇭 SERVERBASE156.67.8.0/22 ServerBase AG, Switzerland}
			PTR	`ns02.hostfactory.ch`
MX	`mx1.hostfactory.ch` ⭐
		A	185.16.174.135^{🇨🇭 SERVERBASE185.16.172.0/22 ServerBase AG, Switzerland}
			PTR	`asave03.hostfactory.ch`
		A	217.150.252.154^{🇨🇭 NINE217.150.240.0/20 Nine Internet Solutions AG, Switzerland}
			PTR	`asave02.hostfactory.ch`
MX	`mx2.hostfactory.swiss`⁽²⁰⁾
		A	185.16.174.139^{🇨🇭 SERVERBASE185.16.172.0/22 ServerBase AG, Switzerland}
			PTR	`asave03.hostfactory.ch`
		A	217.150.252.155^{🇨🇭 NINE217.150.240.0/20 Nine Internet Solutions AG, Switzerland}
			PTR	`asave02.hostfactory.ch`
MX	`mx3.hostfactory.ch`⁽³⁰⁾
		A	185.16.174.139^{🇨🇭 SERVERBASE185.16.172.0/22 ServerBase AG, Switzerland}
			PTR	`asave03.hostfactory.ch`
		A	217.150.252.155^{🇨🇭 NINE217.150.240.0/20 Nine Internet Solutions AG, Switzerland}
			PTR	`asave02.hostfactory.ch`
MX	`mx4.hostfactory.swiss`⁽⁴⁰⁾
		A	185.16.174.139^{🇨🇭 SERVERBASE185.16.172.0/22 ServerBase AG, Switzerland}
			PTR	`asave03.hostfactory.ch`
		A	217.150.252.155^{🇨🇭 NINE217.150.240.0/20 Nine Internet Solutions AG, Switzerland}
			PTR	`asave02.hostfactory.ch`
TXT	`v=spf1 a mx include:spf.hostfactory.ch -all`
SOA	`ns01.hostfactory.ch`sales@hostfactory.ch 2025-12-19 #27

`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 2026-08-11 #0

Subdomains

mail.server20.ch

Same first word

server20.ws

server20.ch

server20.eu

server20.duckdns.org

server20.de

Similar names

server02.be

server02.com

server02.herokuapp.com

server02.eu

server02.de

20server.com

server02.altervista.org

DNS History

11 records (8 active, 3 former)

●NSns01.hostfactory.ch2015-05-23 → 2026-08-10 · 2 obs

● 2015-05-23 07:58:04
● 2026-08-10 23:01:06

●NSns02.hostfactory.ch2015-05-23 → 2026-08-10 · 2 obs

● 2015-05-23 07:58:04
● 2026-08-10 23:01:06

○MXmail.server20.ch2015-05-23 → 2017-09-07 · 4 obs

● 2015-05-23 07:58:04
● 2017-09-07 17:49:30
○ 2026-03-03 03:59:20
○ 2026-08-10 23:01:06

●MXmx1.hostfactory.ch2026-03-03 → 2026-08-10 · 3 obs

○ 2017-09-07 17:49:30
● 2026-03-03 03:59:20
● 2026-08-10 23:01:06

●MXmx2.hostfactory.swiss2026-03-03 → 2026-08-10 · 3 obs

○ 2017-09-07 17:49:30
● 2026-03-03 03:59:20
● 2026-08-10 23:01:06

●MXmx3.hostfactory.ch2026-03-03 → 2026-08-10 · 3 obs

○ 2017-09-07 17:49:30
● 2026-03-03 03:59:20
● 2026-08-10 23:01:06

●MXmx4.hostfactory.swiss2026-03-03 → 2026-08-10 · 3 obs

○ 2017-09-07 17:49:30
● 2026-03-03 03:59:20
● 2026-08-10 23:01:06

●A185.117.168.2292016-09-30 → 2026-08-10 · 3 obs

○ 2016-03-30 09:00:14
● 2016-09-30 01:34:04
● 2026-08-10 23:01:06

●A2a0e:f0c0:1:20::1:30092026-03-03 → 2026-08-10 · 3 obs

○ 2016-09-30 01:34:04
● 2026-03-03 03:59:20
● 2026-08-10 23:01:06

○A62.146.59.1142015-05-23 → 2015-05-23 · 3 obs

● 2015-05-23 07:58:04
○ 2015-10-14 13:26:34
○ 2026-08-10 23:01:06

○A62.146.59.1192015-10-14 → 2016-03-30 · 5 obs

○ 2015-05-23 07:58:04
● 2015-10-14 13:26:34
● 2016-03-30 09:00:14
○ 2016-09-30 01:34:04
○ 2026-08-10 23:01:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
server20.ch	ns02.hostfactory.ch, ns01.hostfactory.ch	4 records

✅ Authoritative Response

Server:185.117.168.140

NS records: ns02.hostfactory.ch, ns01.hostfactory.ch

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1402ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.117.168.229`
AAAA	1	`2a0e:f0c0:1:20::1:3009`
NS	2	`ns01.hostfactory.ch, ns02.hostfactory.ch`
MX	4	`mx4.hostfactory.swiss (pri: 40), mx2.hostfactory.swiss (pri: 20)...`
TXT	1	`v=spf1 a mx include:spf.hostfactory.ch -`
SOA	1	`ns01.hostfactory.ch sales.hostfactory.ch`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns02.hostfactory.ch, ns01.hostfactory.ch, ns02.hostfactory.ch...)

Analysis

Hierarchy

server20.ch serves as the parent of mail.server20.ch.

IP Addresses

server20.ch directs to two IP numbers, 185.117.168.229 and 2a0e:f0c0:1:20::1:3009

Name Servers

server20.ch uses two name servers for its delegation: ns01.hostfactory.ch and ns02.hostfactory.ch.

server20.ch has the same name server delegation as a number of other domains, such as mailch.ch, uwac.ch, ahvrt.ch and two more.

server20.ch has at least partial name server overlap with other domains, such as swiko.ch, activecity.com, laborsysteme.ch and two others.

It is common to see these name servers used together with name servers ns1.bkp.hostfactory.ch and ns2.bkp.hostfactory.ch.

The two host names ns01.hostfactory.ch and ns02.hostfactory.ch each have a pair of IP addresses: ns01.hostfactory.ch has 185.117.168.140 and 2a0e:f0c0:1:13:c::10, and ns02.hostfactory.ch has 156.67.10.18 and 2a03:da41:d::11.

Mail Servers

Four mail servers handle email for server20.ch: mx1.hostfactory.ch, mx3.hostfactory.ch, mx2.hostfactory.swiss and mx4.hostfactory.swiss.

server20.ch shares at least some of its mail servers with other domains — for example polarisblue.ch, artven.ch, printfair.ch and two more.

Each of mx1.hostfactory.ch, mx3.hostfactory.ch, mx2.hostfactory.swiss and mx4.hostfactory.swiss resolves to two IP addresses. mx1.hostfactory.ch directs to 185.16.174.135 and 217.150.252.154; mx3.hostfactory.ch, mx2.hostfactory.swiss and mx4.hostfactory.swiss share 185.16.174.139 and 217.150.252.155.

mx3.hostfactory.ch, mx2.hostfactory.swiss and mx4.hostfactory.swiss all direct to 185.16.174.139.

mx3.hostfactory.ch, mx2.hostfactory.swiss and mx4.hostfactory.swiss all direct to 217.150.252.155.