DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
lettered.org runs on AS6939 (multi-homed across 2 networks), with email configured.
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 16,485 other sites on AS6939. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to lettered.org.
DNS Records for lettered.org
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| lettered.org | MX | 0 | 10 | sail-ipv4.us-core.com |
| lettered.org | A | 0 | 208.82.101.137 | |
| lettered.org | NS | 0 | ns-global.kjsl.com | |
| lettered.org | NS | 0 | puck.nether.net | |
| lettered.org | NS | 0 | ns1.us-core.com | |
| lettered.org | CAA | 0 | 0 issue letsencrypt.org | |
| lettered.org | AAAA | 0 | 2001:470:808d:0:3122:6f5d:9dcd:c717 | |
| lettered.org | SOA | 3600 | ns1.us-core.com hostmaster.lettered.org 1788475880 43200 900 1209600 3600 | |
| lettered.org | TXT | 0 | v=spf1 a:submission.us-core.com a:wallace-server.us-core.com mx -all | |
| www.lettered.org | NS | 0 | puck.nether.net | |
| www.lettered.org | NS | 0 | ns-global.kjsl.com | |
| www.lettered.org | NS | 0 | ns1.us-core.com | |
| www.lettered.org | CNAME | 0 | lettered.org | |
| www.lettered.org | SOA | 3600 | ns1.us-core.com hostmaster.lettered.org 1788475880 43200 900 1209600 3600 | |
| www.lettered.org | CAA | 0 | 0 issue letsencrypt.org | |
| www.lettered.org | AAAA | 0 | 2001:470:808d:0:3122:6f5d:9dcd:c717 | |
| www.lettered.org | MX | 0 | 10 | sail-ipv4.us-core.com |
| www.lettered.org | A | 0 | 208.82.101.137 | |
| www.lettered.org | TXT | 0 | v=spf1 a:submission.us-core.com a:wallace-server.us-core.com mx -all |
Get alerted the moment lettered.org's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch lettered.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 lettered.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