DNS Record Lookup

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

Hosting & Network

sapo.io runs on AS3243, with email configured.

Hosting network
AS3243AS3243
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 1,274 other sites on AS3243. Stable here since we started watching (Oct 7, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for sapo.io

HostnameTypeTTLPriorityContent
sapo.ioSOA3600dns.sapo.io hostmaster.sapo.io 2020052803 3600 7200 2419200 3600
sapo.ioTXT0v=spf1 -all
sapo.ioTXT0yvklw8zqs1yjy3ns01cxg8zflnn6lm0m
sapo.ioCAA00 issue sectigo.com
sapo.ioCAA00 issue multicert.com
sapo.ioCAA00 issuewild letsencrypt.org
sapo.ioCAA00 issue letsencrypt.org
sapo.ioCAA00 issuewild digicert.com
sapo.ioCAA00 issue digicert.com
sapo.ioCAA00 issuewild multicert.com
sapo.ioCAA00 issuewild sectigo.com
sapo.ioMX010mx.mail.sl.pt
sapo.ioA0213.13.145.103
sapo.ioNS0cdn-pic-dns01.ns.sapo.io
sapo.ioNS0cdn-pic-dns02.ns.sapo.io
www.sapo.ioA0213.13.145.103
www.sapo.ioTXT0mtc=YzgxYmQ1Y2QtY2Y3Yy00ZmQ0LWE1YWQtYzQyMWU4ZTdhMmEx

Get alerted the moment sapo.io's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch sapo.io 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 sapo.io

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