DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
core81.com runs on Cloudflare, with DNS by AWS Route 53 and email via Microsoft 365.
- Hosting network
- CloudflareAS209242Cloudflare
- Managed DNS
- AWS Route 53
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 210,652 other sites on Cloudflare. Stable here since we started watching (Sep 17, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for core81.com
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| core81.com | A | 0 | 141.193.213.21 | |
| core81.com | A | 0 | 141.193.213.20 | |
| core81.com | SOA | 86400 | ns-103.awsdns-12.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 | |
| core81.com | NS | 0 | ns-755.awsdns-30.net | |
| core81.com | NS | 0 | ns-1682.awsdns-18.co.uk | |
| core81.com | NS | 0 | ns-103.awsdns-12.com | |
| core81.com | NS | 0 | ns-1379.awsdns-44.org | |
| core81.com | TXT | 0 | include:us._netblocks.mimecast.com ~all | |
| core81.com | TXT | 0 | box-domain-verification=00e65ae65fde1986f6fa6e0680f58f73d7949330e4570d6bbef9cd736383b853 | |
| core81.com | TXT | 0 | ZOOM_verify_LzudI6MV0ZYwUd0lHHOgs2 | |
| core81.com | TXT | 0 | MS=ms10986492 | |
| core81.com | TXT | 0 | v=DMARC1; p=none; rua=mailto:z2rcbn4j@ag.dmarcian.com; | |
| core81.com | TXT | 0 | N64hMiwzGENwlrzU4aZ9u+Knxs64t6pcf41RiYFnv7IugSEGYFNojKm4FuA728U38CYFDTRG95DyKRmTLb5Tvw== | |
| core81.com | TXT | 0 | apple-domain-verification=K8vPeN5JMFfZiyAn | |
| core81.com | TXT | 0 | ciscocidomainverification=cbeb7b1a31d92f164fb3f6c1e74ca975d8c9bd5f1de62e51dec59e3717a5d83 | |
| core81.com | TXT | 0 | v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all | |
| core81.com | MX | 0 | core81-com.mail.protection.outlook.com | |
| www.core81.com | A | 0 | 141.193.213.21 | |
| www.core81.com | A | 0 | 141.193.213.20 |
Get alerted the moment core81.com's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch core81.com continuously, notifying you the moment anything moves across all three signals:
Uptime
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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
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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