How is duckdns.org?

Looks fine risk 0/100

Registered 14 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 183 ms.

Why

02050100

finecarefulhigh risk

·Nothing in the checks added risk.

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

The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.

Site

200

183 ms · ends at www.duckdns.org

HTTPS

79 d

left on a Amazon certificate

Age

14 years

registered 2013-04-12

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	16.55.25.219
MX	1 SMTP.GOOGLE.COM
NS	ns3.duckdns.org ns4.duckdns.org ns5.duckdns.org ns6.duckdns.org ns7.duckdns.org ns8.duckdns.org ns9.duckdns.org ns1.duckdns.org ns2.duckdns.org
TXT	google-site-verification=D-6gaVUztvrU5uB_hbdBs3hAL9zswN_qHCJoOLIbU54

RegistrationGandi SAS

registrar	Gandi SAS
registered	2013-04-12
expires	2029-04-12
last changed	2026-08-12
owner	hidden by privacy service
nameservers	ns1.duckdns.org ns2.duckdns.org ns3.duckdns.org ns5.duckdns.org ns6.duckdns.org ns4.duckdns.org ns7.duckdns.org ns8.duckdns.org ns9.duckdns.org
status	client transfer prohibited

registered 2013-04-12expires 2029-04-12

HTTPS certificate79 days left

valid	yes
issuer	Amazon
covers	duckdns.org, www.duckdns.org
protocol	TLSv1.2

issued 2026-06-30expires 2027-01-13

DNSSECinsecure

Domain is not signed with DNSSEC

. → org → duckdns.org

Email authenticationpoor

SPF	none
DMARC	none
DKIM	none of 1 common selectors

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

Security scoregrade D · 100/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

0/45missing: CAA Records, SPF Record, DMARC Record, DKIM Presence

Advanced Security

15/25missing: Mail Server Configuration, IPv6 Support

Domain Reputation

50/50

Threat Detection

25/45missing: DGA Detection, Domain Age Check

Blocklists0 listings · 5 lookups

SURBL MultidomainURIBL MultidomainSpamCop3.96.91.14Barracuda3.96.91.14UCEPROTECT Level 13.96.91.14

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=duckdns.org" \ -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=duckdns.org"

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

Watch duckdns.org. 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