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Hosting & Network
4b42.ch runs on AS58057, with email configured.
- Hosting network
- AS58057AS58057
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 35 other sites on AS58057. Stable here since we started watching (Jul 17, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to 4b42.ch.
DNS Records for 4b42.ch
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| 4b42.ch | SOA | 3600 | a.any-cast.net hostmaster.4b42.com 2026053073 7200 1800 1209600 3600 | |
| 4b42.ch | A | 0 | 193.33.95.12 | |
| 4b42.ch | A | 0 | 193.33.95.14 | |
| 4b42.ch | A | 0 | 193.33.95.11 | |
| 4b42.ch | A | 0 | 193.33.95.13 | |
| 4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0c:: | |
| 4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0e:: | |
| 4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0d:: | |
| 4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0b:: | |
| 4b42.ch | NS | 0 | a.any-cast.net | |
| 4b42.ch | NS | 0 | d.any-cast.net | |
| 4b42.ch | NS | 0 | c.any-cast.net | |
| 4b42.ch | NS | 0 | b.any-cast.net | |
| 4b42.ch | MX | 0 | 10 | mx1.any-cast.net |
| 4b42.ch | MX | 0 | 30 | mx3.any-cast.net |
| 4b42.ch | MX | 0 | 20 | mx2.any-cast.net |
| www.4b42.ch | MX | 0 | 30 | mx3.any-cast.net |
| www.4b42.ch | MX | 0 | 20 | mx2.any-cast.net |
| www.4b42.ch | MX | 0 | 10 | mx1.any-cast.net |
| www.4b42.ch | SOA | 3600 | a.any-cast.net hostmaster.4b42.com 2026053073 7200 1800 1209600 3600 | |
| www.4b42.ch | CNAME | 0 | 4b42.ch | |
| www.4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0b:: | |
| www.4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0d:: | |
| www.4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0c:: | |
| www.4b42.ch | AAAA | 0 | 2a09:4c0:ffff:0:c121:5f0e:: | |
| www.4b42.ch | A | 0 | 193.33.95.13 | |
| www.4b42.ch | A | 0 | 193.33.95.14 | |
| www.4b42.ch | A | 0 | 193.33.95.12 | |
| www.4b42.ch | A | 0 | 193.33.95.11 | |
| www.4b42.ch | NS | 0 | d.any-cast.net | |
| www.4b42.ch | NS | 0 | b.any-cast.net | |
| www.4b42.ch | NS | 0 | a.any-cast.net | |
| www.4b42.ch | NS | 0 | c.any-cast.net |
Get alerted the moment 4b42.ch's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch 4b42.ch continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
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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