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Hosting & Network
cosin.ch runs on AS57118, with email configured.
- Hosting network
- AS57118AS57118
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 15 other sites on AS57118. Stable here since we started watching (Aug 6, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to cosin.ch.
DNS Records for cosin.ch
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cosin.ch | TXT | 0 | v=spf1 mx a a:ada.ccc-ch.ch -all | |
| cosin.ch | SOA | 300 | chaos01.kabelsalat.ch infra.ccc-basel.ch 1785133974 3600 300 604800 300 | |
| cosin.ch | AAAA | 0 | 2a05:fc84:0:b:5054:ff:fe35:fdd2 | |
| cosin.ch | A | 0 | 185.95.216.173 | |
| cosin.ch | CAA | 0 | 128 issue letsencrypt.org | |
| cosin.ch | CAA | 0 | 128 issuewild ; | |
| cosin.ch | NS | 0 | chaos02.kabelsalat.ch | |
| cosin.ch | NS | 0 | chaos01.ccc-basel.ch | |
| cosin.ch | NS | 0 | chaos01.kabelsalat.ch | |
| cosin.ch | NS | 0 | chaos02.ccc-basel.ch | |
| cosin.ch | MX | 0 | 10 | ada.ccc-ch.ch |
| www.cosin.ch | CNAME | 0 | cosin.ch | |
| www.cosin.ch | NS | 0 | chaos02.kabelsalat.ch | |
| www.cosin.ch | NS | 0 | chaos01.ccc-basel.ch | |
| www.cosin.ch | NS | 0 | chaos02.ccc-basel.ch | |
| www.cosin.ch | NS | 0 | chaos01.kabelsalat.ch | |
| www.cosin.ch | SOA | 300 | chaos01.kabelsalat.ch infra.ccc-basel.ch 1785133974 3600 300 604800 300 | |
| www.cosin.ch | TXT | 0 | v=spf1 mx a a:ada.ccc-ch.ch -all | |
| www.cosin.ch | A | 0 | 185.95.216.173 | |
| www.cosin.ch | CAA | 0 | 128 issuewild ; | |
| www.cosin.ch | CAA | 0 | 128 issue letsencrypt.org | |
| www.cosin.ch | MX | 0 | 10 | ada.ccc-ch.ch |
| www.cosin.ch | AAAA | 0 | 2a05:fc84:0:b:5054:ff:fe35:fdd2 |
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain