DNS Record Lookup

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

Hosting & Network

smtus.fr runs on AS21409, with email via Microsoft 365.

Hosting network
AS21409AS21409
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 5,652 other sites on AS21409. Stable here since we started watching (Jul 18, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to smtus.fr.

DNS Records for smtus.fr

HostnameTypeTTLPriorityContent
smtus.frSOA3600ns4.ikoula.com ikoula.ikoula.com 2019012401 7200 3600 604800 3600
smtus.frA0213.246.49.121
smtus.frNS0ns5.ikoula.com
smtus.frNS0ns4.ikoula.com
smtus.frMX0smtus-fr.mail.protection.outlook.com
smtus.frTXT0v=spf1 include:spf.protection.outlook.com -all
smtus.frTXT0ms=ms53320027
smtus.frTXT0MS=359B22355814FD7750F0E5C1A0FBDDAC561ECCAF
www.smtus.frSOA3600ns4.ikoula.com ikoula.ikoula.com 2019012401 7200 3600 604800 3600
www.smtus.frA0213.246.49.121
www.smtus.frTXT0v=spf1 include:spf.protection.outlook.com -all
www.smtus.frTXT0MS=359B22355814FD7750F0E5C1A0FBDDAC561ECCAF
www.smtus.frTXT0ms=ms53320027
www.smtus.frCNAME0smtus.fr
www.smtus.frMX0smtus-fr.mail.protection.outlook.com
www.smtus.frNS0ns5.ikoula.com
www.smtus.frNS0ns4.ikoula.com

Get alerted the moment smtus.fr's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch smtus.fr 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 smtus.fr

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