DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
biosulin.fyi runs on Cloudflare, with DNS by Cloudflare and email configured.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 5,183,881 other sites on Cloudflare. Stable here since we started watching (Oct 14, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for biosulin.fyi
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| biosulin.fyi | NS | 0 | carol.ns.cloudflare.com | |
| biosulin.fyi | NS | 0 | dylan.ns.cloudflare.com | |
| biosulin.fyi | TXT | 0 | v=spf1 mx ~all | |
| biosulin.fyi | SOA | 1800 | carol.ns.cloudflare.com dns.cloudflare.com 2417306402 10000 2400 604800 1800 | |
| biosulin.fyi | AAAA | 0 | 2606:4700:3037::ac43:c084 | |
| biosulin.fyi | AAAA | 0 | 2606:4700:3032::6815:33fc | |
| biosulin.fyi | MX | 0 | 10 | _dc-mx.b3c0d72a88d4.biosulin.fyi |
| biosulin.fyi | A | 0 | 172.67.192.132 | |
| biosulin.fyi | A | 0 | 104.21.51.252 | |
| www.biosulin.fyi | AAAA | 0 | 2606:4700:3037::ac43:c084 | |
| www.biosulin.fyi | AAAA | 0 | 2606:4700:3032::6815:33fc | |
| www.biosulin.fyi | A | 0 | 172.67.192.132 | |
| www.biosulin.fyi | A | 0 | 104.21.51.252 |
Get alerted the moment biosulin.fyi's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch biosulin.fyi continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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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