HOW.IS
?

How is visualstudio.com?

Looks fine risk 0/100

Registered 30 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 110 ms.

Why

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

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

How visualstudio.com looks right now
The home page, rendered by how.is in a sandboxed browser. Nothing on it is clickable here.
Site
200
110 ms · ends at visualstudio.microsoft.com
HTTPS
85 d
left on a Microsoft Corporation certificate
Age
30 years
registered 1997-03-18
Blocklists
0
listings across 5 lists

Everything we looked at

DNS records5 record types
A150.171.74.16
150.171.73.16
AAAA2603:1061:10::16
2603:1061:10:1::16
NSns1-07.azure-dns.com
ns2-07.azure-dns.net
ns4-07.azure-dns.info
ns3-07.azure-dns.org
TXTv=spf1 -all
CAA{'type': 'CAA', 'critical': 0, 'contactemail': 'caarecordaware@microsoft.com'}
RegistrationMarkMonitor Inc.
registrarMarkMonitor Inc.
registered1997-03-18
expires2027-03-19
last changed2026-02-15
ownerMicrosoft Corporation
nameserversns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
ns4-07.azure-dns.info
statusclient delete prohibited
client transfer prohibited
client update prohibited
registered 1997-03-18expires 2027-03-19
HTTPS certificate85 days left
validyes
issuerMicrosoft Corporation
coversx-pipes.vsassets.io, visualstudio.com, *.visualstudio.com, *.app.visualstudio.com
protocolTLSv1.3
issued 2026-10-12expires 2027-01-20
DNSSECinsecure

Domain is not signed with DNSSEC

. → com → visualstudio.com
Email authenticationpoor
SPFpass v=spf1 -all
DMARCnone
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: DMARC 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 · 8 lookups
SURBL MultidomainURIBL MultidomainSpamCop150.171.73.16Barracuda150.171.73.16UCEPROTECT Level 1150.171.73.16SpamCop150.171.74.16Barracuda150.171.74.16UCEPROTECT Level 1150.171.74.16

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=visualstudio.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=visualstudio.com"

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

Watch visualstudio.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