HOW.IS
?

How is docker.com?

Looks fine risk 0/100

Registered 32 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 54 ms.

Why

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

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

How docker.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
54 ms · ends at www.docker.com
HTTPS
61 d
left on a Let's Encrypt certificate
Age
32 years
registered 1995-01-25
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A23.185.0.4
AAAA2620:12a:8000::4
2620:12a:8001::4
MX10 alt3.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
1 aspmx.l.google.com
10 alt4.aspmx.l.google.com
NSns-568.awsdns-07.net
ns-1981.awsdns-55.co.uk
ns-1289.awsdns-33.org
ns-207.awsdns-25.com
TXTzapier-domain-verification-challenge=c3e7ddaf-20bf-40ca-9374-1a917b16be06
atlassian-domain-verification=I1f5bgOm9sPUEcK/2JTD6weNlWt+Wwsyo5dwvJe1fGjf9V+x3kyqxZRrl9z7ILEK
docker-verification=4b72827b-32c1-4fe6-a843-2256c0df8a31
cursor-domain-verification-pkwbtp=KD6kIrkeudCadzeviiVJgEWnd
docusign=aeb25cd4-f743-4efc-b6fb-b8bc5dd1d0e8
google-site-verification=rCKOZlVmB_xuu9DiT-urSmmXAEUGn5RI8PxdyCW5LJg
google-site-verification=GjEZ_3KyjpDbmRzGdMUtqMeuXdh7HCSc8uRsPGYL-I0
google-site-verification=VbuWA5NflxQMko2x9BJFIPVYrbuxHQll4UP4gZ4Fm08
google-site-verification=CFmV0geNs1hCxK0mBEpjWaDoNwBIiDxIRjTvt3YGRDM
d0vcwvtyam
onetrust-domain-verification=fb12882ae6344670a7b91077bd57c0f1
stripe-verification=804359af3a919b4a46343227e384abdf33e10ad5bb81ea9f1d17ed4e74486ab4
sonatype-domain-verification=OSSRH-62474
adobe-idp-site-verification=a8d1a71d0cba44c2521bcb451d9dc708ee20d93c7b5b04791f699d128bbe6ec2
anthropic-domain-verification-p1ks1q=BmUzJzzDzqNXVWLXmZVoEvTr3
detectify-verification=87a64c3bf3301354588d90672bd1b74e
miro-verification=116f0987438eb5a48c070e080a68e7d7b3087e5f
google-site-verification=Nyiwo5q4kkaD5V-sEiXsW74HXyVRtKVyxYFfZuFLG7M
apple-domain-verification=S580UenDqcwy2I1X
airtable-verification=7f122efe7db6b16848108e469042c39c
google-site-verification=5e33xBJIwW1XU49IqmIYtN7yi2Iq0GNnWwN4ujn4G_M
google-site-verification=i6hYWAXRYCtHNnyiQAYXiy_4StkAMJQiNCfH-3olY-I
opine-verification=14d8ea53-d8ae-406f-93b0-76dc879d9b46
jamf-site-verification=jqNgc5MzMp4UnSANweyyEQ
astro-domain-verification=cljrj1fgz00hm01lvtaq65gnn
google-site-verification=4PyKLfy_lowkc_qcu-byUkmF1kxAUT7tfho7ZiP353s
v=spf1 include:_spf.google.com include:spf.tipalti.com include:_spf.salesforce.com include:mktomail.com include:mail.zendesk.com -all
MS=ms42223923
openai-domain-verification=dv-tj9VEsgExQvdNl9SCOa2Awju
MS=ms98031138
sinch-domain-verification=d8a66194-44cf-49c3-96ab-74325ad6e7be
CAA{'type': 'CAA', 'issue': 'comodoca.com', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0}
{'type': 'CAA', 'issue': 'pki.goog', 'critical': 0}
{'type': 'CAA', 'issue': 'amazon.com', 'critical': 0}
{'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0}
{'type': 'CAA', 'iodef': 'mailto:infra+caa-iodef@docker.com', 'critical': 0}
RegistrationGandi SAS
registrarGandi SAS
registered1995-01-25
expires2027-01-26
last changed2026-01-13
ownerDocker Inc.
nameserversns-1289.awsdns-33.org
ns-1981.awsdns-55.co.uk
ns-207.awsdns-25.com
ns-568.awsdns-07.net
statusclient transfer prohibited
registered 1995-01-25expires 2027-01-26
HTTPS certificate61 days left
validyes
issuerLet's Encrypt
coversdocker.com, www.docker.com
protocolTLSv1.3
issued 2026-09-28expires 2026-12-27
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → docker.com
Email authenticationexcellent
SPFpass v=spf1 include:_spf.google.com include:spf.tipalti.com include:_spf.salesforce.com include:mktomail.com include:mail.zendesk.com -all
DMARCpass policy quarantine
DKIMfound: google, k1, s1, s2

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

Security scoregrade A · 185/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
45/45missing: DKIM Presence
Advanced Security
25/25
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop23.185.0.4Barracuda23.185.0.4UCEPROTECT Level 123.185.0.4

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=docker.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=docker.com"

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

Watch docker.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