How is licdn.com?

Be careful risk 20/100

Registered 16 years ago, no valid HTTPS certificate, the site did not answer (OSError).

Why

02050100

finecarefulhigh risk

+20No valid HTTPS certificate.

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

Site

down

OSError

HTTPS

invalid

Could not resolve host (ENODATA)

Age

16 years

registered 2011-02-24

Blocklists

listings across 2 lists

Everything we looked at

DNS records3 record types

NS	ns1-42.azure-dns.com ns2-42.azure-dns.net ns3-42.azure-dns.org ns4-42.azure-dns.info dns1.p09.nsone.net dns2.p09.nsone.net dns3.p09.nsone.net dns4.p09.nsone.net
TXT	3ea5ec1366f84c909a170d7f047e1db3 CM-94016 _o2u18sy8jbsvaw36p3lw6mvbde867q8 _qlmbx59s6vmc3jm8r74lhan6fgzfmlr _x847yd84j22x08lknv0cdcny1saraga google-site-verification=IKJsxch-oT8ezBp_aIQq3iRyb91ysqV8MWp6QWVochM google-site-verification=bj52p8Z5QgVqdl03TLKoXOhcazH61wF-x62DGJCa9uk n9p9dhwz7g81x06ksd9447hvf0gkyn9w v=spf1 -all
CAA	{'type': 'CAA', 'critical': 0, 'contactemail': 'caarecordaware@microsoft.com'}

RegistrationMarkMonitor Inc.

registrar	MarkMonitor Inc.
registered	2011-02-24
expires	2027-02-24
last changed	2026-01-23
owner	LinkedIn Corporation
nameservers	dns1.p09.nsone.net dns2.p09.nsone.net dns3.p09.nsone.net dns4.p09.nsone.net ns1-42.azure-dns.com ns2-42.azure-dns.net ns3-42.azure-dns.org ns4-42.azure-dns.info
status	client delete prohibited client transfer prohibited client update prohibited server delete prohibited server transfer prohibited server update prohibited

registered 2011-02-24expires 2027-02-24

HTTPS certificatenot valid

valid	no
problem	Could not resolve host (ENODATA)

DNSSECinsecure

Domain is not signed with DNSSEC

. → com → licdn.com

Email authenticationgood

SPF	pass `v=spf1 -all`
DMARC	pass policy reject
DKIM	found: google, selector1, s2, smtp, mx, fm1, fm3, protonmail, protonmail2, protonmail3, sig1

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

Security scoregrade B · 150/190

Basic Security

20/40missing: DNSSEC Enabled

Record Security

45/45missing: DKIM Presence

Advanced Security

5/25missing: Mail Server Configuration, SOA Record Configuration, IPv6 Support

Domain Reputation

35/35

Threat Detection

45/45missing: Domain Age Check

Blocklists0 listings · 2 lookups

SURBL MultidomainURIBL Multidomain

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=licdn.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=licdn.com"

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

Watch licdn.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