How is metamask.io?

Looks fine risk 0/100

Registered 11 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 277 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

277 ms · ends at metamask.com

HTTPS

52 d

left on a Google Trust Services certificate

Age

11 years

registered 2015-07-02

Blocklists

listings across 5 lists

Everything we looked at

DNS records5 record types

A	104.18.40.75 172.64.147.181
AAAA	2606:4700:4405::ac40:93b5 2a06:98c1:310d::6812:284b
MX	1 smtp.google.com
NS	langston.ns.cloudflare.com adelaide.ns.cloudflare.com
TXT	miro-verification=06aec59d07be7d0932c66052bef4e0ec9f560256 00371316 v=spf1 include:_spf.google.com include:mailgun.org include:4795067.spf01.hubspotemail.net -all OSSRH-94282 google-gws-recovery-domain-verification=61510561 google-site-verification=YtaNNt_XG9lp97tHolcYR0NqdyhSkGWdfpMCFUVru4U google-site-verification=wZKzd-THRf5G2HJgdiwxNVdgWUzC7rDouF9iQ-vOOlo google-site-verification=SNHFOPocvIFZ-TWTBZmyJVV2h69GGrm2dvsyWJQTLTs google-site-verification=cCJ7DbV5ygpeEX7pYsZSgkfwMgIjUiTLjLDvEita4mM google-site-verification=Y6oJ8FmCqgthVbVXmD887zcwGohYjgUaCa3miLVMQYY

RegistrationCloudflare, Inc

registrar	Cloudflare, Inc
registered	2015-07-02
expires	2027-07-02
last changed	2026-08-12
owner	Consensys Software Inc
nameservers	langston.ns.cloudflare.com adelaide.ns.cloudflare.com
status	client transfer prohibited

registered 2015-07-02expires 2027-07-02

HTTPS certificate52 days left

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

issued 2026-09-25expires 2026-12-24

DNSSECsecure

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

. → io → metamask.io

Email authenticationexcellent

SPF	pass `v=spf1 include:_spf.google.com include:mailgun.org include:4795067.spf01.hubspotemail.net -all`
DMARC	pass policy reject
DKIM	found: google, s1, s2

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

Security scoregrade B · 155/205

Basic Security

10/40missing: DNSSEC Enabled, Nameserver Diversity

Record Security

30/45missing: CAA Records, DKIM Presence

Advanced Security

20/25missing: Mail Server Configuration

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 8 lookups

SURBL MultidomainURIBL MultidomainSpamCop104.18.40.75Barracuda104.18.40.75UCEPROTECT Level 1104.18.40.75SpamCop172.64.147.181Barracuda172.64.147.181UCEPROTECT Level 1172.64.147.181

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=metamask.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=metamask.io"

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

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

Watch metamask.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