DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

tls.su runs on AS25820, with DNS by Cloudflare and email configured.

Hosting network
AS25820AS25820
Managed DNS
Cloudflare
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 12,854 other sites on AS25820. Stable here since we started watching (Oct 28, 2026).

DNS Records for tls.su

HostnameTypeTTLPriorityContent
tls.suCAA00 issuewild letsencrypt.org
tls.suCAA00 issuewild digicert.com; cansignhttpexchanges=yes
tls.suCAA00 issue comodoca.com
tls.suCAA00 issuewild pki.goog; cansignhttpexchanges=yes
tls.suCAA00 issue letsencrypt.org
tls.suCAA00 issue ssl.com
tls.suCAA00 issuewild comodoca.com
tls.suCAA00 issue digicert.com; cansignhttpexchanges=yes
tls.suCAA00 issuewild ssl.com
tls.suCAA00 issue pki.goog; cansignhttpexchanges=yes
tls.suA0144.34.224.75
tls.suMX010mx.tls.su
tls.suTXT0ca3-444e97403f184a009385a1b1b1c2e411
tls.suTXT0ca3-c93491b3104f4652be0b74622b99aece
tls.suTXT0v=spf1 ip4:185.228.137.220 ip6:2a03:4000:23:a2:98c2:e1ff:fe31:fe65 mx -all
tls.suSOA1800kay.ns.cloudflare.com dns.cloudflare.com 2418691311 10000 2400 604800 1800
tls.suNS0peyton.ns.cloudflare.com
tls.suNS0kay.ns.cloudflare.com

Get alerted the moment tls.su's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch tls.su continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

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, CNAME, TXT 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.

Monitor DNS free

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 tls.su

Beta

Answers 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