Library
Free tools
Small, single-purpose tools for admins. No login, nothing to install, and they never touch your tenant.
Checkers and lookups
2 tools- Free · no loginEmail domain checkerCheck SPF, DKIM and DMARC for any domain in seconds, with what to fix. SPF and its 10-lookup limit · DKIM keys · DMARC policy and reports · MX, MTA-STS, DNSSEC and CAA.Open the tool →
- Free · no loginMicrosoft 365 tenant lookupFind the tenant ID behind any domain, its region, cloud and sign-in type. Tenant ID and name · Region and cloud · Managed or federated sign-in · Exchange Online DNS records.Open the tool →
Generators
3 tools- Free · no loginDMARC record generatorAnswer a few questions and get a DMARC record to paste into DNS. Policy for the domain and its subdomains · Aggregate report addresses · Alignment and rollout percentage · A safe rollout path.Open the tool →
- Free · no loginSPF record generatorPick the services that send your mail and get one valid SPF record. Microsoft 365, Google Workspace and common senders · Your own IP addresses · The 10-lookup limit · Hard or soft fail.Open the tool →
- Free · no loginRead-only PowerShell script generatorBuild a script that lists inactive users, guests, users without MFA, expiring app secrets and more. Microsoft Graph, Exchange Online and Azure · Only read permissions · CSV export per report · Runs on your machine.Open the tool →
Downloads
1 toolWant the whole tenant checked?
ConfigCobra assesses Microsoft 365, Azure, Google Cloud and AWS against the CIS benchmarks, read-only.