DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
sema.bio runs on Cloudflare, with DNS by Cloudflare and email via Google Workspace.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Google Workspace
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Cloudflare. Stable here since we started watching (Aug 2, 2026).
DNS Records for sema.bio
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| sema.bio | SOA | 1800 | beth.ns.cloudflare.com dns.cloudflare.com 2413001089 10000 2400 604800 1800 | |
| sema.bio | NS | 0 | clark.ns.cloudflare.com | |
| sema.bio | NS | 0 | beth.ns.cloudflare.com | |
| sema.bio | AAAA | 0 | 2606:4700:3031::ac43:a82a | |
| sema.bio | AAAA | 0 | 2606:4700:3033::6815:269f | |
| sema.bio | MX | 0 | 1 | smtp.google.com |
| sema.bio | TXT | 0 | v=spf1 include:send.aweber.com include:_spf.google.com ~all | |
| sema.bio | TXT | 0 | google-site-verification=njL7lLBzM_fewOH0BwNiNtWOCUg4cwx2j3RcjReXExw | |
| sema.bio | A | 0 | 172.67.168.42 | |
| sema.bio | A | 0 | 104.21.38.159 | |
| www.sema.bio | A | 0 | 75.2.103.23 |
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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.
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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