DNS Record Lookup

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

cambridge911.org

DNS Records

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

Hosting & Network

cambridge911.org runs on AS3356, with email via Microsoft 365.

Hosting network
AS3356AS3356
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 12,267 other sites on AS3356. Stable here since we started watching (Oct 4, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to www.ps.cambridgema.gov.

DNS Records for cambridge911.org

HostnameTypeTTLPriorityContent
cambridge911.orgNS0ns4.level3.net
cambridge911.orgNS0ns3.level3.net
cambridge911.orgMX0cambridge911-org.mail.protection.outlook.com
cambridge911.orgSOA3600bulldog.cambridgema.gov hostmaster.cambridgema.gov 2023030622 900 600 2419200 3600
cambridge911.orgA0204.167.92.20
cambridge911.orgTXT0nfwQBFjL2HgNNIs0n6sucmBZZcgMDzQZgYb2A4DGFEfNKPwM71lHdhumUWsJahNuR9513d/48lxRgWKVjEZbdQ==
cambridge911.orgTXT0MS=ms72781698
cambridge911.orgTXT0EXTERNAL definitions for this domain
cambridge911.orgTXT0apple-domain-verification=0UqNS2QmWEEHeN2N
cambridge911.orgTXT0apple-domain-verification=2Qj47AVTkico7im5
cambridge911.orgTXT0v=spf1 a ip4:204.167.93.51 ip4:204.167.92.26 ip4:204.167.93.24 ip4:149.97.133.184 ip4:149.97.133.185 ip4:149.97.133.186 ip4:149.97.133.187 ip4:149.97.133.188 ip4:149.97.133.189 ip4:64.58.232.53 ip4:64.58.232.54 ip4:64.58.232.68 ip4:64.58.232.69 ip4:64.58.232.70 ip4:64.58.232.71 ip4:97.107.114.68 ip4:97.107.114.69 ip4:97.107.118.248 ip4:97.107.118.247 ip4:97.107.118.246 ip4:97.107.118.245 include:spf.protection.outlook.com -all
www.cambridge911.orgCNAME0www.ps.cambridgema.gov
www.cambridge911.orgA0204.167.92.20
www.cambridge911.orgTXT0The fabric of spacetime may be torn apart if this address everchanges. Becaue browsers don't grok SRV records, and becauseusers insist on dropping the "WWW." from Web site names, theaddress appears in countless places in our DNS definitions. If anew Web server replaces the current one, make the necessarychanges at the firewall.

Get alerted the moment cambridge911.org's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch cambridge911.org 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 cambridge911.org

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