`essilor-instruments.ch`

DNSSEC	🔒 Signed (DS record present)
A	80.74.139.128^{🇨🇭 ASN-METANET80.74.128.0/20 METANET AG, Switzerland}
		PTR	`arv80-74-139-128.ch-meta.net`
NS	`ch.pro.io` ⭐
		A	2a01:64c0:0:5000::19^{🇩🇪 CLOUDPIT2a01:64c0::/32}
			PTR	`ch.pro.io`
		A	109.237.142.19^{🇩🇪 CLOUDPIT109.237.128.0/20}
			PTR	`ch.pro.io`
NS	`nl.pro.io`
		A	2a01:4f8:fff3:66::219^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`nl.pro.io`
		A	176.9.166.219^{🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4}
			PTR	`nl.pro.io`
NS	`p.dnh.net`
		A	2a02:2b80:101:5000::19^{🇩🇪 CLOUDPIT2a02:2b80:101::/48}
			PTR	`p.dnh.net`
		A	109.237.143.19^{🇩🇪 CLOUDPIT109.237.128.0/20}
			PTR	`p.dnh.net`
SOA	`ch.pro.io`hostmaster@essilor-instruments.ch 2017-12-11 #1

`ch`

	DNSSEC	⚠️ Not signed
	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 2026-04-14 #37

Same first word

essilor-instruments.com

essilor-instruments.eu

essilor-instruments.ch

DNS History

9 records (4 active, 5 former)

●NSch.pro.io2018-07-23 → 2026-04-14 · 3 obs

○ 2017-01-31 13:00:52
● 2018-07-23 11:53:52
● 2026-04-14 16:41:12

●NSnl.pro.io2018-07-23 → 2026-04-14 · 3 obs

○ 2017-01-31 13:00:52
● 2018-07-23 11:53:52
● 2026-04-14 16:41:12

○NSns1.infomaniak.ch2015-08-02 → 2017-01-31 · 4 obs

● 2015-08-02 13:14:36
● 2017-01-31 13:00:52
○ 2018-07-23 11:53:52
○ 2026-04-14 16:41:12

○NSns2.infomaniak.ch2015-08-02 → 2017-01-31 · 4 obs

● 2015-08-02 13:14:36
● 2017-01-31 13:00:52
○ 2018-07-23 11:53:52
○ 2026-04-14 16:41:12

●NSp.dnh.net2026-03-15 → 2026-04-14 · 3 obs

○ 2018-07-23 11:53:52
● 2026-03-15 08:27:12
● 2026-04-14 16:41:12

○MXmta-gw.infomaniak.ch2015-08-02 → 2017-01-31 · 4 obs

● 2015-08-02 13:14:36
● 2017-01-31 13:00:52
○ 2018-07-23 11:53:52
○ 2026-04-14 16:41:12

○A128.65.195.962017-01-31 → 2017-01-31 · 4 obs

○ 2016-06-21 12:55:50
● 2017-01-31 13:00:52
○ 2018-07-23 11:53:52
○ 2026-04-14 16:41:12

●A80.74.139.1282018-07-23 → 2026-04-14 · 3 obs

○ 2017-01-31 13:00:52
● 2018-07-23 11:53:52
● 2026-04-14 16:41:12

○A93.88.254.1622015-08-02 → 2016-06-21 · 4 obs

● 2015-08-02 13:14:36
● 2016-06-21 12:55:50
○ 2017-01-31 13:00:52
○ 2026-04-14 16:41:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	b.nic.ch, f.nic.ch, a.nic.ch, d.nic.ch...	-
essilor-instruments.ch	ch.pro.io, nl.pro.io, p.dnh.net	-

✅ Authoritative Response

Server:109.237.142.19

NS records: ch.pro.io, nl.pro.io, p.dnh.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1239ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`80.74.139.128`
NS	3	`p.dnh.net, ch.pro.io...`
SOA	1	`ch.pro.io hostmaster.essilor-instruments`

Analysis

IP Addresses

essilor-instruments.ch resolves to a single IP: 80.74.139.128.

Other host names, for instance varilux.ch, mail.lensweb.ch, crizal.ch, mail.varilux.ch and lensweb.ch share IP numbers with essilor-instruments.ch.

Name Servers

essilor-instruments.ch delegates to three name servers: ch.pro.io, nl.pro.io and p.dnh.net.

essilor-instruments.ch shares some name servers with other domains, for example porrini.ch, altgold.pro, euro-travel.ch, brick.ch and valentinblank.ch.

Host names with two IP numbers:

ch.pro.io: 2a01:64c0:0:5000::19 and 109.237.142.19

nl.pro.io: 2a01:4f8:fff3:66::219 and 176.9.166.219

p.dnh.net: 2a02:2b80:101:5000::19 and 109.237.143.19

essilor-instruments.ch - robtex.com