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4rsystems.com

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

4rsystems.com runs on Cloudflare, with email via Microsoft 365.

Hosting network
CloudflareAS209242Cloudflare
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 206,684 other sites on Cloudflare. Stable here since we started watching (Sep 15, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to 4rsystems.com.

DNS Records for 4rsystems.com

HostnameTypeTTLPriorityContent
4rsystems.comSOA300dns1.easydns.com zone.easydns.com 1787872696 43200 10800 604800 300
4rsystems.comNS0dns1.easydns.com
4rsystems.comNS0dns2.easydns.net
4rsystems.comNS0dns3.easydns.org
4rsystems.comTXT0v=spf1 include:spf.protection.outlook.com a ip4:100.34.109.50 include:mktomail.com include:spf.tmes.trendmicro.com include:em.4rsystems.com -all
4rsystems.comTXT0MS=ms28333603
4rsystems.comTXT0atlassian-domain-verification=SEbk6SS64Nb-d4/pmAHHXZtfxQxJEs8eTK+e4vRcrqZPQhb1UcdtU8q2h91r8g+L
4rsystems.comTXT0tmes=2c253d4687cc11332d908941e1fba84a
4rsystems.comTXT0d365mktkey=1s9ak55u2gfqd0136xlid4y41
4rsystems.comTXT0knowbe4-site-verification=fe4ef2386b95e1a7368e4a052c712a1c
4rsystems.comTXT0anthropic-domain-verification-rzz7jv=IDx4QvdKZOvFg9hdpp5ThdL45
4rsystems.comTXT0MS=ms12618748
4rsystems.comA0141.193.213.10
4rsystems.comA0141.193.213.11
4rsystems.comMX04rsystems-com.mail.protection.outlook.com
www.4rsystems.comMX04rsystems-com.mail.protection.outlook.com
www.4rsystems.comSOA300dns1.easydns.com zone.easydns.com 1787872696 43200 10800 604800 300
www.4rsystems.comA0141.193.213.11
www.4rsystems.comA0141.193.213.10
www.4rsystems.comCNAME04rsystems.com
www.4rsystems.comTXT0MS=ms28333603
www.4rsystems.comTXT0anthropic-domain-verification-rzz7jv=IDx4QvdKZOvFg9hdpp5ThdL45
www.4rsystems.comTXT0atlassian-domain-verification=SEbk6SS64Nb-d4/pmAHHXZtfxQxJEs8eTK+e4vRcrqZPQhb1UcdtU8q2h91r8g+L
www.4rsystems.comTXT0v=spf1 include:spf.protection.outlook.com a ip4:100.34.109.50 include:mktomail.com include:spf.tmes.trendmicro.com include:em.4rsystems.com -all
www.4rsystems.comTXT0MS=ms12618748
www.4rsystems.comTXT0tmes=2c253d4687cc11332d908941e1fba84a
www.4rsystems.comTXT0knowbe4-site-verification=fe4ef2386b95e1a7368e4a052c712a1c
www.4rsystems.comTXT0d365mktkey=1s9ak55u2gfqd0136xlid4y41
www.4rsystems.comNS0dns3.easydns.org
www.4rsystems.comNS0dns1.easydns.com
www.4rsystems.comNS0dns2.easydns.net

Get alerted the moment 4rsystems.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch 4rsystems.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

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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