interfirst.ch - dns.ninja

`interfirst.ch`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:be3f^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:13dc^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.19.220^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.63^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ernest.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ernest.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ernest.ns.cloudflare.com`
		A	108.162.193.164^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
		A	172.64.33.164^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
		A	173.245.59.164^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ernest.ns.cloudflare.com`
NS	`may.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c087^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`may.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2087^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`may.ns.cloudflare.com`
		A	108.162.192.135^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	172.64.32.135^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
		A	173.245.58.135^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`may.ns.cloudflare.com`
MX	`mx2.zoho.eu` ⭐
		A	185.230.214.166^{🇳🇱 ZOHO-EU185.230.214.0/23}
			PTR	`mx2.zoho.eu`
			PTR	`mx3.zoho.eu`
			PTR	`mx.zoho.eu`
MX	`mx3.zoho.eu`⁽²⁰⁾
		A	185.230.212.166^{🇳🇱 ZOHO-EU185.230.212.0/23}
			PTR	`mx2.zoho.eu`
			PTR	`mx3.zoho.eu`
			PTR	`mx.zoho.eu`
MX	`mx.zoho.eu`⁽⁵⁰⁾
		A	185.20.209.166^{🇨🇭 COMPUTERLINE185.20.209.0/24}
			PTR	`mx2.zoho.eu`
			PTR	`mx3.zoho.eu`
			PTR	`mx.zoho.eu`
		A	185.230.214.166^{🇳🇱 ZOHO-EU185.230.214.0/23}
			PTR	`mx2.zoho.eu`
			PTR	`mx3.zoho.eu`
			PTR	`mx.zoho.eu`
MX	`mail.interfirst.ch`⁽¹⁰⁰⁾
		A	89.108.148.50^{🇱🇧 SODETEL-AS89.108.148.0/24 Sodetel}
TXT	`v=spf1 include:zoho.eu ip4:89.108.148.50 mx include:_spf.google.com -all`
TXT	`zoho-verification=zb37227445.zmverify.zoho.eu`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.19.220, 172.67.190.63
		IPv6 hints	2606:4700:3030::ac43:be3f, 2606:4700:3036::6815:13dc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=212, name=cloudflare-ech.com
SOA	`ernest.ns.cloudflare.com`dns@cloudflare.com serial=2410381534

`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 2026-07-25 #33

Subdomains

mail.interfirst.ch

Same first word

interfirst.properties

interfirst.com

interfirst.ch

Similar names

firstinter.co.th

firstinter.net

firstinter.com

trinefrits.dk

DNS History

20 records (10 active, 10 former)

●NSernest.ns.cloudflare.com2020-03-24 → 2026-07-25 · 2 obs

● 2020-03-24 15:51:00
● 2026-07-25 15:13:34

●NSmay.ns.cloudflare.com2020-03-24 → 2026-07-25 · 2 obs

● 2020-03-24 15:51:00
● 2026-07-25 15:13:34

●MXmail.interfirst.ch2020-03-24 → 2026-07-25 · 2 obs

● 2020-03-24 15:51:00
● 2026-07-25 15:13:34

●MXmx.zoho.eu2026-02-22 → 2026-07-25 · 3 obs

○ 2020-03-24 15:51:00
● 2026-02-22 09:39:18
● 2026-07-25 15:13:34

●MXmx2.zoho.eu2026-02-22 → 2026-07-25 · 3 obs

○ 2020-03-24 15:51:00
● 2026-02-22 09:39:18
● 2026-07-25 15:13:34

●MXmx3.zoho.eu2026-02-22 → 2026-07-25 · 3 obs

○ 2020-03-24 15:51:00
● 2026-02-22 09:39:18
● 2026-07-25 15:13:34

●A104.21.19.2202026-02-22 → 2026-07-25 · 11 obs

○ 2020-03-24 15:51:00
● 2026-02-22 09:39:18
● 2026-03-23 03:03:58
○ 2026-03-31 18:14:06
○ 2026-04-13 00:22:20
● 2026-04-23 16:02:24
○ 2026-06-20 01:03:50
● 2026-06-23 13:05:54
○ 2026-07-07 23:58:44
● 2026-07-25 15:13:30
● 2026-07-25 15:13:34

○A104.28.0.1422020-03-24 → 2020-03-24 · 3 obs

● 2020-03-24 15:51:00
○ 2026-02-22 09:39:18
○ 2026-07-25 15:13:34

○A104.28.1.1422020-03-24 → 2020-03-24 · 3 obs

● 2020-03-24 15:51:00
○ 2026-02-22 09:39:18
○ 2026-07-25 15:13:34

●A172.67.190.632026-02-22 → 2026-07-25 · 11 obs

○A188.114.96.02026-03-31 → 2026-07-07 · 9 obs

○ 2026-03-23 03:03:58
● 2026-03-31 18:14:06
● 2026-04-13 00:22:20
○ 2026-04-23 16:02:24
● 2026-06-20 01:03:50
○ 2026-06-23 13:05:54
● 2026-07-07 23:58:44
○ 2026-07-25 15:13:30
○ 2026-07-25 15:13:34

○A188.114.97.02026-03-31 → 2026-07-07 · 9 obs

●A2606:4700:3030::ac43:be3f2026-07-25 → 2026-07-25 · 3 obs

○ 2026-07-07 23:58:44
● 2026-07-25 15:13:30
● 2026-07-25 15:13:34

○A2606:4700:3031::681c:18e2020-03-24 → 2020-03-24 · 3 obs

● 2020-03-24 15:51:00
○ 2026-02-22 09:39:18
○ 2026-07-25 15:13:34

○A2606:4700:3032::ac43:be3f2026-02-22 → 2026-06-23 · 10 obs

●A2606:4700:3036::6815:13dc2026-07-25 → 2026-07-25 · 3 obs

○ 2026-07-07 23:58:44
● 2026-07-25 15:13:30
● 2026-07-25 15:13:34

○A2606:4700:3037::6815:13dc2026-02-22 → 2026-06-23 · 10 obs

○A2606:4700:3037::681c:8e2020-03-24 → 2020-03-24 · 3 obs

● 2020-03-24 15:51:00
○ 2026-02-22 09:39:18
○ 2026-07-25 15:13:34

○A2a06:98c1:3120::2026-03-31 → 2026-07-07 · 9 obs

○A2a06:98c1:3121::2026-03-31 → 2026-07-07 · 9 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	d.nic.ch, f.nic.ch, b.nic.ch, a.nic.ch...	-
interfirst.ch	may.ns.cloudflare.com, ernest.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.135

NS records: may.ns.cloudflare.com, ernest.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for interfirst.ch (unsigned zone)

⏱️ Timing

Total: 667ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.19.220, 172.67.190.63`
AAAA	2	`2606:4700:3030::ac43:be3f, 2606:4700:3036::6815:13dc`
NS	2	`ernest.ns.cloudflare.com, may.ns.cloudflare.com`
MX	4	`mx.zoho.eu (pri: 10), mail.interfirst.ch (pri: 100)...`
TXT	2	`v=spf1 include:zoho.eu ip4:89.108.148.50, zoho-verification=zb37227445.zmverify.zo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ernest.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

mail.interfirst.ch is delegated beneath interfirst.ch.

IP Addresses

interfirst.ch directs to four IP numbers, which are 104.21.19.220, 172.67.190.63, 2606:4700:3030::ac43:be3f and 2606:4700:3036::6815:13dc.

crispimbalancas.com.br, libkr.org.cn, www.ghbsys.net and two other host names share IP numbers with interfirst.ch.

Name Servers

interfirst.ch is served by two delegated name servers, ernest.ns.cloudflare.com and may.ns.cloudflare.com.

interfirst.ch uses the same name servers as several other domains — among them vanillaturkey.net, caisonwes.com, workstation-specialists.com and two more.

There is at least partial name server overlap between interfirst.ch and other domains — jmjunfu.com, solarwindpublishing.com, denryoku-jigyousho.jp and two more among them.

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

Hostnames that resolve to 6 IP addresses:

ernest.ns.cloudflare.com carries IP addresses 108.162.193.164, 172.64.33.164 and 173.245.59.164, with 3 other addresses beyond those.

may.ns.cloudflare.com carries IP addresses 108.162.192.135, 172.64.32.135 and 173.245.58.135, with 3 other addresses beyond those.

Mail Servers

Mail for interfirst.ch is handled by four mail servers: mail.interfirst.ch, mx2.zoho.eu, mx3.zoho.eu and mx.zoho.eu.

interfirst.ch has at least partial mail server overlap with other domains such as quartel.co.uk, naffets.nl, girard-sudron.ch and two more.

Hostnames that resolve to two IP addresses:

mx.zoho.eu maps to two IP addresses — 185.20.209.166 and 185.230.214.166.

Hosts with just one IP address:

mail.interfirst.ch points to the IP address 89.108.148.50.

mx2.zoho.eu points to the IP address 185.230.214.166.

mx3.zoho.eu points to the IP address 185.230.212.166.

These two host names — mx.zoho.eu and mx2.zoho.eu — each point to 185.230.214.166 IP addresses.