How is app.link?

Looks fine risk 0/100

Registered 12 years ago, on no blocklists we checked, valid HTTPS, the site answered HTTP 404.

Why

02050100

finecarefulhigh risk

·Nothing in the checks added risk.

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

Site

404

107 ms

HTTPS

111 d

left on a Amazon certificate

Age

12 years

registered 2015-03-18

Blocklists

listings across 5 lists

Everything we looked at

DNS records4 record types

A	3.171.38.47 3.171.38.40 3.171.38.89 3.171.38.74
AAAA	2600:9000:28a0:fe00:19:9934:6a80:93a1 2600:9000:28a0:f600:19:9934:6a80:93a1 2600:9000:28a0:400:19:9934:6a80:93a1 2600:9000:28a0:8000:19:9934:6a80:93a1 2600:9000:28a0:ea00:19:9934:6a80:93a1 2600:9000:28a0:7600:19:9934:6a80:93a1 2600:9000:28a0:2000:19:9934:6a80:93a1 2600:9000:28a0:7000:19:9934:6a80:93a1
NS	ns-1521.awsdns-62.org ns-1800.awsdns-33.co.uk ns-249.awsdns-31.com ns-615.awsdns-12.net
TXT	google-site-verification=FXJOkLzb6EKqvgtikG5X2LojokNDBwpYdzJ3qnOo_Q4 google-site-verification=jFobHOfP7n6ugi0Y9aObMrtJWcec5jZg0PwmoIMCPco v=spf1 -all

RegistrationGandi SAS

registrar	Gandi SAS
registered	2015-03-18
expires	2027-03-18
last changed	2026-10-20
owner	Branch
nameservers	ns-1800.awsdns-33.co.uk ns-249.awsdns-31.com ns-615.awsdns-12.net ns-1521.awsdns-62.org
status	client transfer prohibited

registered 2015-03-18expires 2027-03-18

HTTPS certificate111 days left

valid	yes
issuer	Amazon
covers	appipv4.link, app.link, .app.link, .appipv4.link
protocol	TLSv1.3

issued 2026-01-23expires 2027-02-20

DNSSECinsecure

Domain is not signed with DNSSEC

. → link → app.link

Email authenticationpoor

SPF	pass `v=spf1 -all`
DMARC	none
DKIM	none of 1 common selectors

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

Security scoregrade B · 145/205

Basic Security

20/40missing: DNSSEC Enabled

Record Security

15/45missing: CAA Records, DMARC Record, DKIM Presence

Advanced Security

15/25missing: Mail Server Configuration

Domain Reputation

50/50

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 14 lookups

SURBL MultidomainURIBL MultidomainSpamCop3.171.38.74Barracuda3.171.38.74UCEPROTECT Level 13.171.38.74SpamCop3.171.38.47Barracuda3.171.38.47UCEPROTECT Level 13.171.38.47SpamCop3.171.38.40Barracuda3.171.38.40UCEPROTECT Level 13.171.38.40SpamCop3.171.38.89Barracuda3.171.38.89UCEPROTECT Level 13.171.38.89

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=app.link" \ -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=app.link"

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

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

Watch app.link. 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