HOW.IS
?

How is linkedin.com?

Looks fine risk 0/100

Registered 24 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 60 ms.

Why

02050100
finecarefulhigh risk
  • ·Nothing in the checks added risk.

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

How linkedin.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
60 ms
HTTPS
179 d
left on a DigiCert Inc certificate
Age
24 years
registered 2002-11-02
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records6 record types
A130.211.32.14
AAAA2600:1901:0:d5ad::
MX10 mail-1.linkedin.com
10 mail-2.linkedin.com
10 mail-d.linkedin.com
20 mail-a.linkedin.com
20 mail-c.linkedin.com
20 mail.linkedin.com
NSdns1.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
TXT448e0dc03e935ecf66d81f1ce3c26b2f2fea13756c031ffc4be91749107f3a79
AFDVALIDATION=LinkedIn
_cthqqp5zj8g86qf3h97heqitg2zc32b
apple-domain-verification=Hp7LihDNsREwfHX9
atlassian-domain-verification=dDed2VFvlDajBX8X22w52Jx/W/YLHR81SxUuraa9zNdz4aLjDS/RpfN11w2bxpRc
atlassian-domain-verification=juKdSE4GGphSmzPkhmnRJUNIn0ALdb0vsP7VSPM8TmTP7WgbgUQPLFdNicP7bF58
atlassian-sending-domain-verification=3bdb0597-814d-4e10-a552-5cf78f92ab3c
bf5fl8sny79w4c70jxp6cp3crkqtr7qk
bluebeam-verification=02px6k8snlrzd6gx3b3oqkeatbzawd
docusign=11f01284-dffc-40f9-8d56-57e5261ede3f
elevenlabs=hRLt8nemUjAWJSL_xhBIsKFyK4yYV089AvwkOB0cxYY
google-site-verification=0Vs9yf1V6RGkuzow85OzIXKEnjpRswpDkI6RgDVspMg
google-site-verification=8LaIeBMwr6K8qWeaGa4CEmfPKiZDwaT38t5mIrtaroI
google-site-verification=VE9BWhjbPPNmbr3ZJcwn5hLTsz7c5KPt3zXdYyaSnSQ
google-site-verification=X0LoSQsAMzR-TK4o-ULrYAwLi_fyopfRLkm_C-4N4Ts
google-site-verification=anx3jpa6VKkTWRJKnglUIzm7UEn-ZCT2WqAfG7h-xOg
google-site-verification=mMV_EnYaB52OhMo-jbNowf8QVIKcXV3WpXreynLFFEo
google-site-verification=oJFWbtlKRblXs4smNibcoJkTJqwT6gd3XMI80VjBihE
google-site-verification=vfmYHwjzUIFPzxFcyuwEToh_1kG9wvcpGgJnB-MhQn8
google-site-verification=xAGz495k8RbGclhamQx1TkZSHDxOaEd95fOjc8xpbTA
liveramp-site-verification=yQ2nkwhqszpGRQg_J38S60KHInPVs-dclgyNRtRrlBA
miro-verification=260f00146b6d2ad1bb70d6dc07a077b672badd28
v=spf1 ip4:199.101.162.0/25 ip4:108.174.3.0/24 ip4:108.174.6.0/24 ip4:108.174.0.0/24 ip6:2620:109:c00d:104::/64 ip6:2620:109:c006:104::/64 ip6:2620:109:c003:104::/64 ip6:2620:119:50c0:207::/64 ip4:199.101.161.130 mx mx:docusign.net ~all
vmware-cloud-verification-f4d7c1c7-ad66-450f-82fa-c17b9ee79459
CAA{'type': 'CAA', 'critical': 0, 'contactemail': 'caarecordaware@microsoft.com'}
{'type': 'CAA', 'critical': 0, 'contactemail': 'tls-alerts@linkedin.com'}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered2002-11-02
expires2027-11-02
last changed2026-10-01
ownerLinkedIn Corporation
nameserversdns1.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
statusclient delete prohibited
client transfer prohibited
client update prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 2002-11-02expires 2027-11-02
HTTPS certificate179 days left
validyes
issuerDigiCert Inc
coverslinkedin.com
protocolTLSv1.3
issued 2026-10-22expires 2027-04-22
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → linkedin.com
Email authenticationexcellent
SPFpass v=spf1 ip4:199.101.162.0/25 ip4:108.174.3.0/24 ip4:108.174.6.0/24 ip4:108.174.0.0/24 ip6:2620:109:c00d:104::/64 ip6:2620:109:c006:104::/64 ip6:2620:109:c003:104::/64 ip6:2620:119:50c0:207::/64 ip4:199.101.161.130 mx mx:docusign.net ~all
DMARCpass policy reject
DKIMfound: google

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

Security scoregrade A · 180/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
45/45missing: DKIM Presence
Advanced Security
20/25missing: SOA Record Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop130.211.32.14Barracuda130.211.32.14UCEPROTECT Level 1130.211.32.14

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=linkedin.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=linkedin.com"

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

Watch linkedin.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