HOW.IS
?

How is onmicrosoft.com?

Be careful risk 20/100

Registered 22 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
22 years
registered 2005-02-03
Blocklists
0
listings across 2 lists

Everything we looked at

DNS records3 record types
NSns2.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
TXTv=spf1 include:spf.protection.outlook.com -all
google-site-verification=1-9fQJjGKgDh7UVF1XcVfBMOr-C1emzk5wjD0ZqnULc
CAA{'type': 'CAA', 'issue': 'entrust.net', 'critical': 0}
{'type': 'CAA', 'issue': 'globalsign.com', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'contactemail': 'caarecordaware@microsoft.com'}
{'type': 'CAA', 'issue': 'microsoft.com', 'critical': 0}
{'type': 'CAA', 'iodef': 'mailto:domains@microsoft.com', 'critical': 0}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered2005-02-03
expires2027-02-03
last changed2026-01-02
ownerMicrosoft Corporation
nameserversns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
statusclient delete prohibited
client transfer prohibited
client update prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 2005-02-03expires 2027-02-03
HTTPS certificatenot valid
validno
problemCould not resolve host (ENODATA)
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → onmicrosoft.com
Email authenticationfair
SPFpass v=spf1 include:spf.protection.outlook.com -all
DMARCnone
DKIMfound: s1, s2

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

Security scoregrade C · 122/190
Basic Security
10/40missing: DNSSEC Enabled, Nameserver Diversity
Record Security
30/45missing: DMARC Record, DKIM Presence
Advanced Security
10/25missing: Mail Server Configuration, IPv6 Support
Domain Reputation
27/35missing: Typosquatting Check
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=onmicrosoft.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=onmicrosoft.com"

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

IPv6. IPv6 readiness grade for onmicrosoft.com Does onmicrosoft.com work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.

Watch onmicrosoft.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