DNS Record Lookup

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

Hosting & Network

We’re building the network profile for ysn21.jp — hosting, DNS, email and its network neighborhood will appear here shortly after this lookup is recorded.

DNS Records for ysn21.jp

HostnameTypeTTLPriorityContent
ysn21.jpTXT0MS=ms34599053
ysn21.jpTXT0v=spf1 +ip4:163.43.159.228/32 ~all
ysn21.jpTXT0MS=ms16567022
ysn21.jpTXT0google-site-verification=5liuMCihYWNoMv5cVLN5jNgD193b610tqjweM31g3Ow
ysn21.jpTXT0dnohoj0hk66qa3jevs1le53duc
ysn21.jpNS0fns03.mcnet.ad.jp
ysn21.jpNS0fns01.mcnet.ad.jp
ysn21.jpNS0fns02.mcnet.ad.jp
ysn21.jpSOA900fns01.mcnet.ad.jp postmaster.mcnet.ad.jp 2026030301 10800 900 604800 900
www.ysn21.jpA0192.178.155.121
www.ysn21.jpAAAA02607:f8b0:4004:c23::79
www.ysn21.jpCNAME0ghs.googlehosted.com

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 ysn21.jp

Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

Get alerted the moment ysn21.jp's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch ysn21.jp 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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

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