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Gridlode
Rank #5,260Updated November 10, 2026

opendns.com

Cloud Delivered Enterprise Security by OpenDNS

opendns.com is registered with PDR Ltd. d/b/a PublicDomainRegistry.com since September 4, 2003 (23.2 years). The registration expires on September 4, 2027. The site runs on Font Awesome, Fancybox, jQuery and 2 other technologies. Its email security grade is F. Its SSL certificate is issued by Let's Encrypt and is valid for 78 more days.

Domain age
23.2 yrs
Technologies
5
Email security
F
SSL days left
78

Registration

RegistrarPDR Ltd. d/b/a PublicDomainRegistry.com
IANA ID303
RegisteredSeptember 4, 2003
ExpiresSeptember 4, 2027
UpdatedAugust 11, 2026
Statusclient transfer prohibited
Name serversauth1.opendns.com, auth2.opendns.com, auth3.opendns.com
DNSSECNot signed

DNS records

TypeValueTTL
A146.112.62.105300
MXaer-mx-01.cisco.com 303600
MXalln-mx-01.cisco.com 103600
MXrcdn-mx-01.cisco.com 203600
NSauth1.opendns.com604800
NSauth2.opendns.com604800
NSauth3.opendns.com604800
CAAissue 0 amazon.com3600
CAAissue 0 amazonaws.com3600
CAAissue 0 amazontrust.com3600
CAAissue 0 awstrust.com3600
CAAissue 0 digicert.com3600
CAAissue 0 identrust.com3600
CAAissue 0 letsencrypt.org3600
CAAissue 0 quovadisglobal.com3600
TXT8a0qMBOOpB-h4tuZsbRSOi00ZA3600
TXTdocusign=2dcbb085-bb7f-44b2-8cdd-c9a93a8c0514120
TXTgoogle-site-verification=1uqoSSYwOE4E7Vue1oAcKDmEt6yn5US6vuQ6shGu2dg120
TXTgoogle-site-verification=VXNIemKQVGZ9Q3215ANNzcTDK5ZejVDwd6RQsQ2u1GI120
TXTidentrust_validate=5sxUJXEBNGIryr9TcBm31oSDJsqEiIkNIodAE18dD/xn3600
TXTidentrust_validate=dkFEA7jD1kBR9Uo9E25VVSRjPfhYSFMdX3sUWoWG28Mv3600
TXTv=spf1 ptr include:_nets.opendns.com include:mail.zendesk.com include:amazonses.com include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com ip4:173.37.147.246 ip4:173.37.147.247 ip4:72.163.7.179 ip4:72.163.7.180 ip4:192.28.150.255 ?all120
TXT_qhmqsb0grgjeq03vl0tvsnhchg7seuf3600

Technology stack

JavaScript library
Security
Web server

SSL certificate

ValidValid
IssuerUS, YR2, Let's Encrypt
ExpiresJanuary 28, 2027
Days remaining78
ProtocolTLSv1.2
Namesopendns.com, www.opendns.com

Email security

FScore 49/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSPF ends with ?all, which tells receivers nothing. Use ~all or -all.
  • warnSPF uses the deprecated 'ptr' mechanism, which is slow and ignored by some receivers.
  • warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
  • warnDKIM key found (selector: google, default, mail) but it is only 1024 bits; 2048 is recommended.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • good3 MX record(s) found.

Homepage metadata

TitleCloud Delivered Enterprise Security by OpenDNS
DescriptionPredict and prevent attacks before they happen using our cloud-delivered enterprise security service. Protect any device, anywhere with OpenDNS.
Languageen-US
Canonicalhttps://www.opendns.com/
IndexableYes
Word count215

About opendns.com

Who is the registrar of opendns.com?

opendns.com is registered with PDR Ltd. d/b/a PublicDomainRegistry.com (IANA ID 303).

When does opendns.com expire?

The current registration of opendns.com expires on September 4, 2027. It was first registered on September 4, 2003.

What technology does opendns.com use?

We detected 5 technologies on opendns.com, including Font Awesome, Fancybox, jQuery, HSTS, Nginx.

Does opendns.com protect its email with SPF and DMARC?

opendns.com scores 49/100 (grade F) for email security. SPF ends with ?all, which tells receivers nothing. Use ~all or -all. SPF uses the deprecated 'ptr' mechanism, which is slow and ignored by some receivers.

What are the name servers of opendns.com?

opendns.com uses auth1.opendns.com, auth2.opendns.com, auth3.opendns.com.