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Hosting & Network
oppermann.onl isn’t pointed at a host yet — it has nameservers configured but no A/AAAA records for us to trace to a hosting network.
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- Self-hosted / other
- Configured
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DNS Records for oppermann.onl
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| oppermann.onl | TXT | 0 | google-site-verification=li_1_FpC1cP5kWJJoiZRQQeTQg-LrenJEo87WZFln_8 | |
| oppermann.onl | TXT | 0 | v=spf1 mx -all | |
| oppermann.onl | MX | 0 | 10 | home.wittenberg.onl |
| oppermann.onl | SOA | 300 | a.dns.wittenberg.onl hostmaster.wittenberg.onl 2026091005 3600 900 604800 300 | |
| oppermann.onl | NS | 0 | a.dns.wittenberg.onl | |
| oppermann.onl | NS | 0 | b.dns.wittenberg.onl | |
| oppermann.onl | NS | 0 | c.dns.wittenberg.onl | |
| oppermann.onl | CAA | 0 | 0 issue letsencrypt.org | |
| oppermann.onl | CAA | 0 | 0 iodef mailto:system+caa@wittenberg.onl |
Get alerted the moment oppermann.onl's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch oppermann.onl 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
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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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