How is shodan.io?

Looks fine risk 0/100

Registered 14 years ago, on no blocklists we checked, valid HTTPS, the site answered 403 in 62 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

403

62 ms

HTTPS

74 d

left on a Google Trust Services certificate

Age

14 years

registered 2012-08-22

Blocklists

listings across 5 lists

Everything we looked at

DNS records5 record types

A	104.18.13.238 104.18.12.238
AAAA	2606:4700::6812:cee 2606:4700::6812:dee
MX	5 alt1.aspmx.l.google.com 1 aspmx.l.google.com 5 alt2.aspmx.l.google.com
NS	lady.ns.cloudflare.com ed.ns.cloudflare.com
TXT	MS=87251D03D1B817A70CC370D9FF17FFB7325A0110 google-site-verification=FZDvThk3fhaZTnxohWox3OG5lW9dpsPUc9rDNV0al18 anthropic-domain-verification-cyb4ft=VdpzeWyM37LWIDAxqDIT4vAV0 v=spf1 ip4:216.117.2.180 ip4:69.72.37.146 include:_spf.google.com -all google-site-verification=BzXlMuKdXSAiX3v-VUo-M_ZZ1VPW3cwptvaIOWWGQ7c

RegistrationGandi SAS

registrar	Gandi SAS
registered	2012-08-22
expires	2027-08-22
last changed	2026-08-12
owner	John Matherly
nameservers	lady.ns.cloudflare.com ed.ns.cloudflare.com
status	active

registered 2012-08-22expires 2027-08-22

HTTPS certificate74 days left

valid	yes
issuer	Google Trust Services
covers	shodan.io, *.shodan.io
protocol	TLSv1.3

issued 2026-10-16expires 2027-01-14

DNSSECsecure

Domain is properly signed — chain validated by an independent validating resolver

. → io → shodan.io

Email authenticationfair

SPF	pass `v=spf1 ip4:216.117.2.180 ip4:69.72.37.146 include:_spf.google.com -all`
DMARC	warning policy none
DKIM	none of 1 common selectors

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

Security scoregrade B · 153/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

23/45missing: CAA Records, DMARC Record, DKIM Presence

Advanced Security

25/25

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 8 lookups

SURBL MultidomainURIBL MultidomainSpamCop104.18.12.238Barracuda104.18.12.238UCEPROTECT Level 1104.18.12.238SpamCop104.18.13.238Barracuda104.18.13.238UCEPROTECT Level 1104.18.13.238

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=shodan.io" \ -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=shodan.io"

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

IPv6. Does shodan.io work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch shodan.io. 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