DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
ctbuh.org runs on Cloudflare, with DNS by Cloudflare and email via Microsoft 365.
- Hosting network
- CloudflareAS13335Cloudflare
- Managed DNS
- Cloudflare
- Microsoft 365
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 4,060,413 other sites on Cloudflare. Stable here since we started watching (Aug 9, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for ctbuh.org
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| ctbuh.org | NS | 0 | aragorn.ns.cloudflare.com | |
| ctbuh.org | NS | 0 | chloe.ns.cloudflare.com | |
| ctbuh.org | A | 0 | 104.21.3.124 | |
| ctbuh.org | A | 0 | 172.67.130.178 | |
| ctbuh.org | MX | 0 | ctbuh-org.mail.protection.outlook.com | |
| ctbuh.org | SOA | 1800 | aragorn.ns.cloudflare.com dns.cloudflare.com 2416143349 10000 2400 604800 1800 | |
| ctbuh.org | AAAA | 0 | 2606:4700:3035::6815:37c | |
| ctbuh.org | AAAA | 0 | 2606:4700:3034::ac43:82b2 | |
| ctbuh.org | TXT | 0 | atlassian-domain-verification=puVrM6c1YkPzGoIpYTzm/AMsvmKsNNFwq/LybXmCf12cndKEzZZN0oFYwY1dPdnL | |
| ctbuh.org | TXT | 0 | pardot878592=d440ae80a7a308a585c401a16f8f9f241c13f09dce974786f576ec2324230a59 | |
| ctbuh.org | TXT | 0 | anthropic-domain-verification-5bmjg3=PnswFgkKpOSggSHwx8XSroOzx | |
| ctbuh.org | TXT | 0 | google-site-verification=5y8gI2rp8A_EQQipdbWA4eJrLuAyak7Cz6iPWynuC8I | |
| ctbuh.org | TXT | 0 | google-site-verification=TMdhV7gmJhKeUuKuFWHrhF1pWxhS4WUnY44c0w6sSPs | |
| ctbuh.org | TXT | 0 | apple-domain-verification=m6jodqHNmG4dKwlx | |
| ctbuh.org | TXT | 0 | MS=ms76195812 | |
| ctbuh.org | TXT | 0 | v=spf1 ip4:64.18.0.0/20 ip4:192.42.83.65/27 include:spf.protection.outlook.com include:mailgun.org include:_spf.salesforce.com include:aspmx.pardot.com ~all | |
| www.ctbuh.org | A | 0 | 172.67.130.178 | |
| www.ctbuh.org | A | 0 | 104.21.3.124 | |
| www.ctbuh.org | AAAA | 0 | 2606:4700:3034::ac43:82b2 | |
| www.ctbuh.org | AAAA | 0 | 2606:4700:3035::6815:37c |
Get alerted the moment ctbuh.org's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch ctbuh.org 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.
What's up with DNS →
Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.
Ask about ctbuh.org
BetaAnswers use the live DNS records shown on this page. AI-generated — double-check anything important.
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