opten.io

.io crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP 200 1010 ms crawled 2026-06-02

CH · 193.36.36.110 · AS6730 Sunrise GmbH

Reputation 100/100

DNS records live

NS

dns1.opten.ch
dns2.opten.ch
dns3.opten.ch
dns4.opten.ch

MX

10 smtpin1.opten.io
20 smtpin2.opten.io

Email authentication strong

SPF: v=spf1 ip4:217.162.0.0/24 ip4:193.36.36.0/24 a mx -all
strict (-all)
DMARC: v=DMARC1; p=reject;
policy: reject (enforced)
DKIM: no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36

from 2026-05-01 to 2026-11-16

Expires in 166 days

Full certificate history on crt.sh ↗

Linked from (1)

restaurant-tannzapfe.ch×1