DNS Record Lookup

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

Hosting & Network

tcp0.com runs on AS57771, with email configured.

Hosting network
AS57771AS57771
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 5 other sites on AS57771.

Recently changed networks: AS8038 → AS57771 (as of Nov 13, 2026)

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

DNS Records for tcp0.com

HostnameTypeTTLPriorityContent
tcp0.comA0185.54.94.42
tcp0.comAAAA02a00:8641:1:1::42
tcp0.comSOA3600ns1.dns.tcp0.com hostmaster.tcp0.com 2026110602 3600 3600 2419200 3600
tcp0.comNS0ns2.dns.tcp0.com
tcp0.comNS0ns3.dns.tcp0.com
tcp0.comNS0ns4.dns.tcp0.com
tcp0.comNS0ns5.dns.tcp0.com
tcp0.comNS0ns6.dns.tcp0.com
tcp0.comNS0ns1.dns.tcp0.com
tcp0.comNS0ns8.dns.tcp0.com
tcp0.comNS0ns7.dns.tcp0.com
tcp0.comNS0ns9.dns.tcp0.com
tcp0.comTXT0v=spf1 include:_spf.google.com include:spf.protection.outlook.com ip6:2607:fae0::/32 ip4:75.149.49.32/29 ip4:67.221.240.0/20 ip4:50.240.195.128/28 ip4:185.54.94.42 ip6:2a00:8641:1:1::42 ~all
tcp0.comMX010services1-trs.tcp0.com
tcp0.comMX020dev1-dfw.6connect.com
www.tcp0.comAAAA02a00:8641:1:1::42
www.tcp0.comA0185.54.94.42

Get alerted the moment tcp0.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch tcp0.com 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 tcp0.com

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