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Azure Tenant Resolution by PingCastle
Azure Tenant Resolution by PingCastle maps domain information to Azure tenant data using an online lookup.
About Azure Tenant Resolution by PingCastle
Azure Tenant Resolution by PingCastle is a web lookup that finds Azure tenant information from either a domain name or a tenant ID. For a domain name, the tool retrieves tenant data online from that domain's OpenID configuration. For a tenant ID, it searches a database of tenants.
The ID search database was built from a list of publicly known domains taken from certificate transparency records. Each domain on that list was checked for an OpenID configuration, and any tenant ID found was collected. The homepage lists 7019131 known tenants. Results from the ID search are therefore limited to domains that appeared in that input list.
Key features
- Searches for an Azure tenant by domain name
- Searches for an Azure tenant by tenant ID
- Retrieves domain results online from the OpenID configuration
- ID search draws on a database built from publicly known domains
- Source domains for the database come from certificate transparency records
Best for: People who need to look up Azure tenant information from a domain name or a tenant ID.
Watch out for
- The ID search only covers domains in the database, which was built from publicly known domains in certificate transparency records.
- Domain search results depend on the OpenID configuration that is available online for that domain.
Azure Tenant Resolution by PingCastle at a glance
- Category
- Privacy & Security › Website & URL Scanners
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Azure Tenant Resolution by PingCastle FAQ
Where does the information for a domain search come from?
The homepage states that domain search results are retrieved online from the OpenID configuration.
How was the database used for ID search built?
It was built from a list of publicly known domains, taken from certificate transparency records. Each domain was searched for an OpenID configuration, and any tenant ID found was collected.
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