DNS Record Lookup

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

Hosting & Network

semmtech.com runs on Cloudflare, with DNS by AWS Route 53 and email via Google Workspace.

Hosting network
CloudflareAS209242Cloudflare
Managed DNS
AWS Route 53
Email
Google Workspace
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 217,828 other sites on Cloudflare. Stable here since we started watching (Aug 21, 2026).

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

DNS Records for semmtech.com

HostnameTypeTTLPriorityContent
semmtech.comA0141.193.213.11
semmtech.comA0141.193.213.10
semmtech.comTXT0v=spf1 include:_spf.google.com include:amazonses.com -all
semmtech.comTXT0MS=ms50198742
semmtech.comTXT0google-site-verification=vvm5ilo6ZjdKI1tDLPnFuWkwnTEnEQmy3MeF3joY8O0
semmtech.comTXT0google-site-verification=jC6qpdoESYfRDZ9BVlDbuZePsPAG-SMulp44JQHxqls
semmtech.comTXT0mistral-domain-verification=4517ec1bb4957a7bc0be0f37b44444c45403566d
semmtech.comTXT0atlassian-domain-verification=shaNaTU6+56jmorLyALkLIkKZX+EsZjQN7BDVvYaZE+wCkIFkPiMfzNgojPV8gyZ
semmtech.comMX030aspmx3.googlemail.com
semmtech.comMX020alt2.aspmx.l.google.com
semmtech.comMX010aspmx.l.google.com
semmtech.comMX030aspmx4.googlemail.com
semmtech.comMX030aspmx5.googlemail.com
semmtech.comMX030aspmx2.googlemail.com
semmtech.comMX020alt1.aspmx.l.google.com
semmtech.comSOA86400ns-218.awsdns-27.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
semmtech.comNS0ns-1433.awsdns-51.org
semmtech.comNS0ns-1818.awsdns-35.co.uk
semmtech.comNS0ns-218.awsdns-27.com
semmtech.comNS0ns-720.awsdns-26.net
www.semmtech.comCNAME0semmtech.com
www.semmtech.comTXT0google-site-verification=jC6qpdoESYfRDZ9BVlDbuZePsPAG-SMulp44JQHxqls
www.semmtech.comTXT0v=spf1 include:_spf.google.com include:amazonses.com -all
www.semmtech.comTXT0MS=ms50198742
www.semmtech.comTXT0google-site-verification=vvm5ilo6ZjdKI1tDLPnFuWkwnTEnEQmy3MeF3joY8O0
www.semmtech.comTXT0mistral-domain-verification=4517ec1bb4957a7bc0be0f37b44444c45403566d
www.semmtech.comTXT0atlassian-domain-verification=shaNaTU6+56jmorLyALkLIkKZX+EsZjQN7BDVvYaZE+wCkIFkPiMfzNgojPV8gyZ
www.semmtech.comNS0ns-720.awsdns-26.net
www.semmtech.comNS0ns-1433.awsdns-51.org
www.semmtech.comNS0ns-1818.awsdns-35.co.uk
www.semmtech.comNS0ns-218.awsdns-27.com
www.semmtech.comA0141.193.213.11
www.semmtech.comA0141.193.213.10
www.semmtech.comMX030aspmx5.googlemail.com
www.semmtech.comMX020alt1.aspmx.l.google.com
www.semmtech.comMX020alt2.aspmx.l.google.com
www.semmtech.comMX030aspmx3.googlemail.com
www.semmtech.comMX010aspmx.l.google.com
www.semmtech.comMX030aspmx4.googlemail.com
www.semmtech.comMX030aspmx2.googlemail.com
www.semmtech.comSOA86400ns-218.awsdns-27.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400

Get alerted the moment semmtech.com's DNS changes

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