HOW.IS
?

How is opendns.com?

Looks fine risk 0/100

Registered 23 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 1389 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

How opendns.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
1389 ms · ends at www.opendns.com
HTTPS
46 d
left on a Let's Encrypt certificate
Age
23 years
registered 2003-09-04
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A146.112.62.105
MX30 aer-mx-01.cisco.com
20 rcdn-mx-01.cisco.com
10 alln-mx-01.cisco.com
NSauth2.opendns.com
auth3.opendns.com
auth1.opendns.com
TXT_qhmqsb0grgjeq03vl0tvsnhchg7seuf
v=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 ?all
identrust_validate=dkFEA7jD1kBR9Uo9E25VVSRjPfhYSFMdX3sUWoWG28Mv
docusign=2dcbb085-bb7f-44b2-8cdd-c9a93a8c0514
google-site-verification=1uqoSSYwOE4E7Vue1oAcKDmEt6yn5US6vuQ6shGu2dg
google-site-verification=VXNIemKQVGZ9Q3215ANNzcTDK5ZejVDwd6RQsQ2u1GI
8a0qMBOOpB-h4tuZsbRSOi00ZA
identrust_validate=5sxUJXEBNGIryr9TcBm31oSDJsqEiIkNIodAE18dD/xn
CAA{'type': 'CAA', 'issue': 'amazonaws.com', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'issue': 'awstrust.com', 'critical': 0}
{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'amazontrust.com', 'critical': 0}
{'type': 'CAA', 'issue': 'quovadisglobal.com', 'critical': 0}
{'type': 'CAA', 'issue': 'identrust.com', 'critical': 0}
RegistrationPDR Ltd. d/b/a PublicDomainRegistry.com
registrarPDR Ltd. d/b/a PublicDomainRegistry.com
registered2003-09-04
expires2027-09-04
last changed2026-08-10
nameserversauth1.opendns.com
auth2.opendns.com
auth3.opendns.com
statusclient transfer prohibited
registered 2003-09-04expires 2027-09-04
HTTPS certificate46 days left
validyes
issuerLet's Encrypt
coversopendns.com, www.opendns.com
protocolTLSv1.2
issued 2026-09-12expires 2026-12-11
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → opendns.com
Email authenticationgood
SPFwarning v=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 ?all
DMARCwarning policy none
DKIMfound: default, google, mail

Whether mail claiming to be from this domain can be checked as genuine.

Security scoregrade B · 156/205
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
31/45missing: SPF Record, DMARC Record, DKIM Presence
Advanced Security
20/25missing: IPv6 Support
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop146.112.62.105Barracuda146.112.62.105UCEPROTECT Level 1146.112.62.105

Green: clean. Red: listed. Grey: the list did not answer.

Ask it yourself

Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.

curl "https://how.is/v1/domain/trust?domain=opendns.com" \ -H "Authorization: Bearer $HOWIS_KEY" # or pay per call in USDC (x402), no key: the 402 tells your agent the price curl -i "https://how.is/v1/domain/profile?domain=opendns.com"

MCP: add https://how.is/mcp to Claude, Codex or Cursor (one-line install) and ask for domain_trust on opendns.com. Reference: /llms.txt.

Watch opendns.com. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.

Watch — $1 / 30 days