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Hosting & Network
certum.pl runs on AS28785, with DNS by Akamai and email via Microsoft 365.
- Hosting network
- AS28785AS28785
- Managed DNS
- Akamai
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 5 other sites on AS28785. Stable here since we started watching (Aug 9, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to web.edge.certum.pl.
DNS Records for certum.pl
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| certum.pl | A | 0 | 213.222.201.184 | |
| certum.pl | MX | 0 | 10 | pri.mx.certum.pl |
| certum.pl | MX | 0 | certum-pl.mail.protection.outlook.com | |
| certum.pl | MX | 0 | 20 | sec.mx.certum.pl |
| certum.pl | SOA | 60 | a1-222.akam.net tech.certum.pl 2026080413 3600 1200 864000 60 | |
| certum.pl | NS | 0 | a11-66.akam.net | |
| certum.pl | NS | 0 | a16-64.akam.net | |
| certum.pl | NS | 0 | a22-67.akam.net | |
| certum.pl | NS | 0 | a1-222.akam.net | |
| certum.pl | TXT | 0 | v=spf1 ip4:213.222.201.98 ip4:213.222.198.98 -all | |
| certum.pl | TXT | 0 | e73733cb8e798813ae0da06b9708d3b524952464e3c2c8a1e6eff96bb130751 | |
| certum.pl | TXT | 0 | mojecertpl-site-verification-1XyyfB1gkJGwpo1px2rj76P2otrIOr4q | |
| certum.pl | TXT | 0 | MS=ms38611329 | |
| www.certum.pl | CNAME | 0 | web.edge.certum.pl | |
| www.certum.pl | A | 0 | 213.222.201.184 |
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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