Cached · just now
85/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=WA, L=Redmond, O=Microsoft Corporation, CN=vb.dev
Issuer
C=US, O=Microsoft Corporation, CN=Microsoft Azure RSA TLS Issuing CA 04
Valid From
November 07, 2025
Valid Until
May 06, 2026 131 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA384-RSA
SHA-256 Fingerprint
5F:A8:46:52:E9:C8:8D:CE:ED:94:46:3F:F0:55:0A:B5:7B:8F:88:0E:FC:BC:5D:82:C3:20:9A:AF:01:B2:F5:01
Alternative Names

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • Add Content-Security-Policy header to prevent XSS attacks
  • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Not Authorized (Potential misconfiguration)
Incident Reporting
CAA Issues
  • CRITICAL: Current certificate issuer 'C=US, O=Microsoft Corporation, CN=Microsoft Azure RSA TLS Issuing CA 04' is NOT authorized by CAA records. Authorized CAs:
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement

Subject Alternative Names

175 domains
leap.dev www.leap.dev

Other domains in certificate

appreadiness.com www.appreadiness.com
live.asp.net
aspnet.dev www.aspnet.dev
averesystems.com library.averesystems.com support.averesystems.com www.averesystems.com
blazor.net www.blazor.net
carbonatedgames.net www.carbonatedgames.net
carbonatedgames.org www.carbonatedgames.org
csharp.dev www.csharp.dev
customvision.ai
desktop.dev www.desktop.dev
digigirlz.com www.digigirlz.com
domainsdata.microsoft www.domainsdata.microsoft
docs.dot.net dot.net get.dot.net live.dot.net www.dot.net
dotnet.dev www.dotnet.dev
dynamics.ai www.dynamics.ai
alerts.dynamics.com blog.businesscentral.dynamics.com blog.commerce.dynamics.com blog.connected-store.dynamics.com blog.csinsights.dynamics.com blog.customerinsights.dynamics.com blog.customerservice.dynamics.com blog.fieldservice.dynamics.com blog.finance-operations.dynamics.com blog.fraudprotection.dynamics.com blog.gp.dynamics.com blog.guides.dynamics.com blog.layout.dynamics.com blog.marketing.dynamics.com blog.marketinsights.dynamics.com blog.nav.dynamics.com blog.product-insights.dynamics.com blog.productvisualize.dynamics.com blog.psautomation.dynamics.com blog.remoteassist.dynamics.com blog.sales.dynamics.com blog.scm.dynamics.com blog.sl.dynamics.com blog.virtualagent.dynamics.com customers.dynamics.com explore.dynamics.com mycommunity.dynamics.com techtalks.dynamics.com www.blog.dynamics.com www.customers.dynamics.com www.explore.dynamics.com www.mycommunity.dynamics.com www.techtalks.dynamics.com
mycommunity.dynamics365.com techtalks.dynamics365.com www.mycommunity.dynamics365.com www.techtalks.dynamics365.com
www.envisionforum.cz
flip.com www.flip.com
fsharp.dev www.fsharp.dev
docs.fslogix.com fslogix.com support.fslogix.com www.fslogix.com
futuredecoded.com www.futuredecoded.com
gamestack.com www.gamestack.com
lobe.dev www.lobe.dev
makecode.dev www.makecode.dev
www.microsoft.be
microsoft.no www.microsoft.no
community.microsoftcasualgames.com
microsoftcodeforfuture.com www.microsoftcodeforfuture.com
microsoftdlapartnerow.pl www.microsoftdlapartnerow.pl
microsofthup.com www.microsofthup.com
microsoftlife.com www.microsoftlife.com
microsoftpartnerinvestments.com www.microsoftpartnerinvestments.com
microsofttradein.com www.microsofttradein.com
microsoftventures.com www.microsoftventures.com
modernbiz.ca www.modernbiz.ca
msftdomains.com www.msftdomains.com
msfteducation.ca www.msfteducation.ca
msngames.com www.msngames.com
msngamescasino.com www.msngamescasino.com
msngamescasino.net www.msngamescasino.net
nuget.dev www.nuget.dev
officeuifabric.info www.officeuifabric.info
officeuifabric.io www.officeuifabric.io
officeuifabric.net www.officeuifabric.net
officeuifabric.org www.officeuifabric.org
customers.powerapps.com www.customers.powerapps.com
customers.powerbi.com www.customers.powerbi.com
powerplatform.com www.powerplatform.com
powerquery.com www.powerquery.com
powervirtualagent.com www.powervirtualagent.com
powervirtualagents.com www.powervirtualagents.com
projectsangam.com www.projectsangam.com
pwabuilder.com
rdap.microsoft www.rdap.microsoft
remix3d.com
signalr.net www.signalr.net
szkolyprzyszlosci.pl www.szkolyprzyszlosci.pl
teams.new
techcommunity.com.au www.techcommunity.com.au
tunegociointeligente.cl www.tunegociointeligente.cl
uifabric.com www.uifabric.com
uifabric.info www.uifabric.info
uifabric.io www.uifabric.io
uifabric.net www.uifabric.net
uifabric.org www.uifabric.org
vb.dev www.vb.dev
www.visualstudio.dev
visualstudiocode.dev www.visualstudiocode.dev
what-dog.net www.what-dog.net
www.xamarin.dev xamarin.dev