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Hosting & Network
a1.rs runs on AS44143, with email via Microsoft 365.
- Hosting network
- AS44143AS44143
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 5 other sites on AS44143. Stable here since we started watching (Aug 12, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to a1.rs.
DNS Records for a1.rs
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| a1.rs | MX | 0 | 10 | a1-rs.mail.protection.outlook.com |
| a1.rs | A | 0 | 77.243.16.127 | |
| a1.rs | SOA | 43200 | ns.mtel.net sysadmin.mtel.net 2026090801 3600 900 1209600 43200 | |
| a1.rs | NS | 0 | ns.mtel.net | |
| a1.rs | NS | 0 | ns2.mtel.net | |
| a1.rs | AAAA | 0 | 2a00:61c0:1:299::a | |
| a1.rs | TXT | 0 | cloudflare-verify.a1.rs946872627-483739186 | |
| a1.rs | TXT | 0 | offensity-domain-verification=ea4f4db23726a083287eb3d6b69f99d4f5bb7941f0339ffb9830dc97ef7a36b3 | |
| a1.rs | TXT | 0 | HTmfawGNI3oj5kqKPnRcAWBuftFS5VTAKzmJJjQZuQoRf/urXi7beYUcr34tdRfoM4G+h7fVoO40RSWvCpFWow== | |
| a1.rs | TXT | 0 | v=spf1 include:spf1.a1.rs include:spf2.a1.rs -all | |
| a1.rs | TXT | 0 | _8y4lwktzig92uw5xctnrn3pqhdt0qpw | |
| a1.rs | TXT | 0 | atlassian-domain-verification=qny8wsWb8GSm72AV8ckn86KrWSeA/PfXwsqed/nlAujWrEN9OYISSiR1C6f0f9P2 | |
| a1.rs | TXT | 0 | 6zr8r4btbkqnj3q9mtfztk1ylwhlhxcy | |
| a1.rs | TXT | 0 | Dh+GYM/2MRsxh3F3FyCKN/KJyLic/cwkKt+vM5dQHVq9MCRLyJC8ZCWJN0fSrqmMP2nlEQNIA5W8YAQqaPYFdw== | |
| a1.rs | TXT | 0 | ibmid=0a9aed9e-a2db-47a8-a70f-d0743e09b42a | |
| a1.rs | TXT | 0 | jd6fj7t8ym2l9np6l5hltkx12hnlxycn | |
| a1.rs | TXT | 0 | workplace-domain-verification=wsWMkpDasWyrn6jXnHYuQAzvx0LndN | |
| a1.rs | TXT | 0 | MS=ms74056046 | |
| www.a1.rs | MX | 0 | 10 | a1-rs.mail.protection.outlook.com |
| www.a1.rs | TXT | 0 | atlassian-domain-verification=qny8wsWb8GSm72AV8ckn86KrWSeA/PfXwsqed/nlAujWrEN9OYISSiR1C6f0f9P2 | |
| www.a1.rs | TXT | 0 | cloudflare-verify.a1.rs946872627-483739186 | |
| www.a1.rs | TXT | 0 | jd6fj7t8ym2l9np6l5hltkx12hnlxycn | |
| www.a1.rs | TXT | 0 | Dh+GYM/2MRsxh3F3FyCKN/KJyLic/cwkKt+vM5dQHVq9MCRLyJC8ZCWJN0fSrqmMP2nlEQNIA5W8YAQqaPYFdw== | |
| www.a1.rs | TXT | 0 | MS=ms74056046 | |
| www.a1.rs | TXT | 0 | 6zr8r4btbkqnj3q9mtfztk1ylwhlhxcy | |
| www.a1.rs | TXT | 0 | ibmid=0a9aed9e-a2db-47a8-a70f-d0743e09b42a | |
| www.a1.rs | TXT | 0 | workplace-domain-verification=wsWMkpDasWyrn6jXnHYuQAzvx0LndN | |
| www.a1.rs | TXT | 0 | _8y4lwktzig92uw5xctnrn3pqhdt0qpw | |
| www.a1.rs | TXT | 0 | v=spf1 include:spf1.a1.rs include:spf2.a1.rs -all | |
| www.a1.rs | TXT | 0 | HTmfawGNI3oj5kqKPnRcAWBuftFS5VTAKzmJJjQZuQoRf/urXi7beYUcr34tdRfoM4G+h7fVoO40RSWvCpFWow== | |
| www.a1.rs | TXT | 0 | offensity-domain-verification=ea4f4db23726a083287eb3d6b69f99d4f5bb7941f0339ffb9830dc97ef7a36b3 | |
| www.a1.rs | NS | 0 | ns.mtel.net | |
| www.a1.rs | NS | 0 | ns2.mtel.net | |
| www.a1.rs | CNAME | 0 | a1.rs | |
| www.a1.rs | A | 0 | 77.243.16.127 | |
| www.a1.rs | AAAA | 0 | 2a00:61c0:1:299::a | |
| www.a1.rs | SOA | 43200 | ns.mtel.net sysadmin.mtel.net 2026090801 3600 900 1209600 43200 |
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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