HOW.IS
?

How is office.com?

Looks fine risk 0/100

Registered 28 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 157 ms.

Why

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

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

How office.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
157 ms · ends at m365.cloud.microsoft
HTTPS
87 d
left on a Microsoft Corporation certificate
Age
28 years
registered 1999-04-20
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A13.107.6.156
AAAA2620:1ec:a92::156
NSns4-05.azure-dns.info
ns1-05.azure-dns.com
ns2-05.azure-dns.net
ns3-05.azure-dns.org
TXTgoogle-site-verification=WiCZ6HhPFmPMk5PTkdpSnevgiRttL2tQ-7QA_Z81JRk
google-site-verification=V6qxrpALPrk4N8F9wqgUVMwFdKi4sSUY5dLaICCx5rU
zoom-domain-verification=ZOOM_verify_c71c4db9abfb4773aaed4c681c8c7b42
google-site-verification=u1wJrtoeh7Cm1rWUcfA5shOYAXklaqy_IAsIMa8L-qU
google-site-verification=iJN6qYrMLZmqRE70EPwnmUtT7qW3Rs-X3_wgil1YQjw
facebook-domain-verification=h6ulkdsze2qhdtbdnivt3lilquemgc
google-site-verification=VUSidRle8tqArZaEIF_9-uxlBmOku8re9NfdLDyfFE0
google-site-verification=9aqt6mNhLx_inDlQjEfPiqq_TYfy72IFpoUh5_gijEg
google-site-verification=ntjPAtTot4dDzv9Z7WpQYYSlgVajPuBZx0FoZyRE8q8
google-site-verification=zqthuNzyDukN37Znr1L5xdDKHo7KZUL2LTyOqzU7cFo
CAA{'type': 'CAA', 'issue': 'microsoft.com', 'critical': 0}
{'type': 'CAA', 'critical': 0, 'contactemail': 'caarecordaware@microsoft.com'}
{'type': 'CAA', 'iodef': 'mailto:domains@microsoft.com', 'critical': 0}
{'type': 'CAA', 'issue': 'globalsign.com', 'critical': 0}
{'type': 'CAA', 'issue': 'digicert.com', 'critical': 0}
{'type': 'CAA', 'issue': 'entrust.net', 'critical': 0}
{'type': 'CAA', 'issue': 'dtrust.de', 'critical': 0}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered1999-04-20
expires2027-04-20
last changed2026-05-13
ownerMicrosoft Corporation
nameserversns1-05.azure-dns.com
ns2-05.azure-dns.net
ns3-05.azure-dns.org
ns4-05.azure-dns.info
statusclient delete prohibited
client transfer prohibited
client update prohibited
server delete prohibited
server transfer prohibited
server update prohibited
registered 1999-04-20expires 2027-04-20
HTTPS certificate87 days left
validyes
issuerMicrosoft Corporation
covershome.office.com, login.office.com, office.com, signin.office.com, www.office.com, *.www.office.com, word.office.com, excel.office.com, powerpoint.office.com, visio.office.com, apps.office.com, stream.office.com
protocolTLSv1.3
issued 2026-10-13expires 2027-01-21
DNSSECsecure

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

. → com → office.com
Email authenticationpoor
SPFnone
DMARCpass policy quarantine
DKIMnone of 1 common selectors

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

Security scoregrade B · 155/205
Basic Security
20/40missing: DNSSEC Enabled
Record Security
30/45missing: SPF Record, DKIM Presence
Advanced Security
10/25missing: Mail Server Configuration, SOA Record Configuration
Domain Reputation
50/50
Threat Detection
45/45missing: Domain Age Check
Blocklists0 listings · 5 lookups
SURBL MultidomainURIBL MultidomainSpamCop13.107.6.156Barracuda13.107.6.156UCEPROTECT Level 113.107.6.156

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=office.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=office.com"

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

Watch office.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