DNS Record Lookup

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

Hosting & Network

asto.tokyo runs on AS8220, with email configured.

Hosting network
AS8220AS8220
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 5,310 other sites on AS8220. Stable here since we started watching (Sep 26, 2026).

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

DNS Records for asto.tokyo

HostnameTypeTTLPriorityContent
asto.tokyoNS0ns1.azuredns.jp
asto.tokyoNS0ns2.azuredns.jp
asto.tokyoNS0ns3.azuredns.jp
asto.tokyoSOA3600ns1.azuredns.jp hostmaster.asto.tokyo 2026061501 10800 3600 604800 3600
asto.tokyoMX010mail0.asto.tokyo
asto.tokyoA0154.16.166.56
asto.tokyoTXT0MS=ms11036547
asto.tokyoTXT0google-site-verification=8EDkdBCoUekNQq0DV6owcZda5u36mz22miXiHWD3LMB
asto.tokyoTXT0stripe-verification=hlwzPEsqX49rJ87VvqaRHn2PC4uHtCsAxbsF4dP9IOUZSdfzDyj28LXgrq07igmY
asto.tokyoTXT0pinterst-site-verification=l3lr6kKfnE5UqOYCH1cxvbBCshU12T
asto.tokyoTXT0mailerlite-verification=u7imcw5oszodxjxw3nyl8xn5xfv2dq2l
asto.tokyoTXT0apple-domain-verification=CUbOHUyowyDHwgwoqNz1Ko8aX
asto.tokyoTXT0v=spf1 ip4:154.16.166.56 include:_spf.cloudflare.com include:_spf.atlassian.net ~all
www.asto.tokyoA0154.16.166.56

Get alerted the moment asto.tokyo's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch asto.tokyo 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.

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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