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Hosting & Network
studentweb.cz runs on AS25234 (multi-homed across 2 networks).
- Managed DNS
- Self-hosted / other
- None
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 3,398 other sites on AS25234. Stable here since we started watching (Aug 9, 2026).
DNS Records for studentweb.cz
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| studentweb.cz | NS | 0 | ns2.eco-dns.net | |
| studentweb.cz | NS | 0 | ns3.eint.cz | |
| studentweb.cz | NS | 0 | ns1.centrum.cz | |
| studentweb.cz | SOA | 86400 | ns1.centrum.cz domain.centrumholdings.com 2024121601 10800 1800 1209600 86400 | |
| studentweb.cz | AAAA | 0 | 2a02:4a8:ac24:204::101:8 | |
| studentweb.cz | A | 0 | 46.255.231.108 | |
| www.studentweb.cz | CNAME | 0 | lb.ihned.cz | |
| www.studentweb.cz | A | 0 | 46.255.231.108 | |
| www.studentweb.cz | AAAA | 0 | 2a00:da80:e::108 | |
| www.studentweb.cz | TXT | 0 | google-site-verification=Kj0u_oxBqNLt5l4unuYyUcODudGcuo4lHXTvFJHN_OI | |
| www.studentweb.cz | TXT | 0 | v=spf1 include:_spf.centrum.cz include:_spf.google.com include:mailgun.org +a:smtp.crystalmails.com ?all | |
| www.studentweb.cz | TXT | 0 | google-site-verification=K4otjlLXn8F2o49AUI9vUl0nMvDiglaFp_P74Olegcg | |
| www.studentweb.cz | TXT | 0 | google-site-verification=MEKZYb6k-z494g7Hs87mlSjL71DkzAiQve-iZuM6a7U | |
| www.studentweb.cz | TXT | 0 | google-site-verification=UQtS0XpnTYA0NbhU1imcW_8oQbYnX42_h5HFi2jrqPU | |
| www.studentweb.cz | SOA | 1800 | clark.ns.cloudflare.com dns.cloudflare.com 2413683878 10000 2400 604800 1800 | |
| www.studentweb.cz | MX | 0 | 10 | aspmx3.googlemail.com |
| www.studentweb.cz | MX | 0 | 5 | alt1.aspmx.l.google.com |
| www.studentweb.cz | MX | 0 | 5 | alt2.aspmx.l.google.com |
| www.studentweb.cz | MX | 0 | 1 | aspmx.l.google.com |
| www.studentweb.cz | MX | 0 | 10 | aspmx2.googlemail.com |
| www.studentweb.cz | NS | 0 | janet.ns.cloudflare.com | |
| www.studentweb.cz | NS | 0 | clark.ns.cloudflare.com |
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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