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calvertlibrary.info

DNS Records

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Hosting & Network

calvertlibrary.info runs on AS6189, with email via Microsoft 365.

Hosting network
AS6189AS6189
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 36 other sites on AS6189. Stable here since we started watching (Jul 27, 2026).

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

DNS Records for calvertlibrary.info

HostnameTypeTTLPriorityContent
calvertlibrary.infoA064.26.86.242
calvertlibrary.infoSOA3600calvdc.calvert.lib pflibit.somd.lib.md.us 2017121641 7200 600 1209600 3600
calvertlibrary.infoMX010calvertlibrary-info.mail.eo.outlook.com
calvertlibrary.infoTXT0apple-domain-verification=lNizjkMXN8RD43U6
calvertlibrary.infoTXT0gxlbg2dybj4ycx6d40b1dn302c7f39kf
calvertlibrary.infoTXT0v=spf1 mx ip4:64.26.86.150 ip4:64.26.86.151 ip4:64.26.86.200 a:calvertlibrary.info include:mailgun.org include:spf.protection.outlook.com include:_spf.smtp.com ~all
calvertlibrary.infoNS0nsc.lib.md.us
calvertlibrary.infoNS0nsa.lib.md.us
calvertlibrary.infoNS0nsb.lib.md.us
calvertlibrary.infoNS0calvdc.calvertlibrary.local
www.calvertlibrary.infoCNAME0calvertlibrary.info
www.calvertlibrary.infoSOA3600calvdc.calvert.lib pflibit.somd.lib.md.us 2017121641 7200 600 1209600 3600
www.calvertlibrary.infoA064.26.86.242
www.calvertlibrary.infoNS0nsc.lib.md.us
www.calvertlibrary.infoNS0nsa.lib.md.us
www.calvertlibrary.infoNS0nsb.lib.md.us
www.calvertlibrary.infoNS0calvdc.calvertlibrary.local
www.calvertlibrary.infoMX010calvertlibrary-info.mail.eo.outlook.com
www.calvertlibrary.infoTXT0v=spf1 mx ip4:64.26.86.150 ip4:64.26.86.151 ip4:64.26.86.200 a:calvertlibrary.info include:mailgun.org include:spf.protection.outlook.com include:_spf.smtp.com ~all
www.calvertlibrary.infoTXT0gxlbg2dybj4ycx6d40b1dn302c7f39kf
www.calvertlibrary.infoTXT0apple-domain-verification=lNizjkMXN8RD43U6

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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