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Hosting & Network
ulsan.ac.kr runs on Korea Telecom (multi-homed across 2 networks), with email configured.
- Hosting network
- Korea Telecommulti-homedAS4766Korea TelecomAS55618
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Korea Telecom. Stable here since we started watching (Jul 24, 2026).
DNS Records for ulsan.ac.kr
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| ulsan.ac.kr | MX | 0 | 5 | sfilter.ulsan.ac.kr |
| ulsan.ac.kr | MX | 0 | 10 | autodiscover.ulsan.ac.kr |
| ulsan.ac.kr | NS | 0 | ns1.ulsan.ac.kr | |
| ulsan.ac.kr | NS | 0 | ns2.ulsan.ac.kr | |
| ulsan.ac.kr | A | 0 | 210.102.153.8 | |
| ulsan.ac.kr | A | 0 | 203.250.94.150 | |
| ulsan.ac.kr | SOA | 10800 | ns1.ulsan.ac.kr sysmaster.ulsan.ac.kr 2021054673 3600 900 604800 10800 | |
| ulsan.ac.kr | TXT | 0 | ZOOM_verify_YuG9wbdjQV-TzJVA95KuAg | |
| ulsan.ac.kr | TXT | 0 | MS=14784611A44FEEFA59BAC7EEEB42ACC7C4B36E1F | |
| ulsan.ac.kr | TXT | 0 | v=spf1 ip4:203.250.94.30 ip4:203.250.95.102 ip4:210.102.153.112 ip4:210.102.153.111 ip4:210.102.153.110 ip4:203.250.71.102 ip4:211.43.212.149 ip4:210.102.153.118 include:spf.protection.outlook.com -all | |
| www.ulsan.ac.kr | A | 0 | 210.102.153.8 |
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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