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

sf.net

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

sf.net runs on Cloudflare, with email configured.

Hosting network
CloudflareAS13335Cloudflare
Managed DNS
Self-hosted / other
Email
Configured
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 3,912,121 other sites on Cloudflare. Stable here since we started watching (Jul 15, 2026).

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

DNS Records for sf.net

HostnameTypeTTLPriorityContent
sf.netTXT0SourceForge, Inc.
sf.netTXT0ca3-f4212f5f769b49b8840bea8a424c9b30
sf.netTXT0ca3-d544fc84b0da44919971660318584992
sf.netTXT0v=spf1 redirect=_spf.sf.net
sf.netMX010mx.sourceforge.net
sf.netCAA00 issue digicert.com
sf.netCAA00 issue amazontrust.com
sf.netCAA00 issue letsencrypt.org
sf.netCAA00 issue comodo.com
sf.netCAA00 issue amazon.com
sf.netCAA00 issue amazonaws.com
sf.netCAA00 issue awstrust.com
sf.netNS0ns61.constellix.net
sf.netNS0ns31.constellix.com
sf.netNS0ns21.constellix.com
sf.netNS0ns51.constellix.net
sf.netNS0ns41.constellix.net
sf.netNS0ns11.constellix.com
sf.netSOA180ns11.constellix.com dns.constellix.com 2015022218 43200 3600 1209600 180
sf.netA0104.18.21.237
sf.netA0104.18.20.237
www.sf.netCNAME0sf.net
www.sf.netNS0ns51.constellix.net
www.sf.netNS0ns11.constellix.com
www.sf.netNS0ns21.constellix.com
www.sf.netNS0ns41.constellix.net
www.sf.netNS0ns61.constellix.net
www.sf.netNS0ns31.constellix.com
www.sf.netSOA180ns11.constellix.com dns.constellix.com 2015022218 43200 3600 1209600 180
www.sf.netMX010mx.sourceforge.net
www.sf.netCAA00 issue amazontrust.com
www.sf.netCAA00 issue amazon.com
www.sf.netCAA00 issue amazonaws.com
www.sf.netCAA00 issue digicert.com
www.sf.netCAA00 issue comodo.com
www.sf.netCAA00 issue awstrust.com
www.sf.netCAA00 issue letsencrypt.org
www.sf.netTXT0ca3-d544fc84b0da44919971660318584992
www.sf.netTXT0v=spf1 redirect=_spf.sf.net
www.sf.netTXT0SourceForge, Inc.
www.sf.netTXT0ca3-f4212f5f769b49b8840bea8a424c9b30
www.sf.netA0104.18.21.237
www.sf.netA0104.18.20.237

Get alerted the moment sf.net's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch sf.net 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