Run a Mac diagnostic. Get a signed report.
Macfax runs a full diagnostic on your Mac and produces a tamper-proof report at a public URL. Useful for selling a Mac, verifying one before you buy, or just keeping a record of your own hardware. It is free, and there is only one version of it.
Identity, Coverage, lock state, spec match, hardware health.
Free, signed, public report URL. About a minute to run. Drop the URL into any listing. The report binds to this Mac's Secure Enclave, so a buyer can prove on arrival that it is the same machine.
- Serial is real and matches Apple's database
- Apple Coverage Check status (AppleCare, Limited Warranty, expired)
- Activation Lock state
- Find My Mac state
- iCloud account binding
- MDM and DEP enrollment
- Spec match: chip, cores, memory, storage, GPU
- Logic-board to chassis serial cross-check
- Drive wear and SMART condition, as the drive reports it
- Battery cycle count and condition (laptops)
- Secure Boot and SIP state
- Device-bound key fingerprint for buyer re-verification
- Local AI throughput, when the Mac can run the benchmark
Other ways to diagnose a Mac, and what they leave out.
Apple Diagnostics
Checks the hardware. Doesn't produce a shareable record, doesn't verify identity, doesn't show Activation Lock or Find My state, doesn't bind to the device. Useful as a step in a workflow, not as an artifact a buyer can trust.
Apple Coverage Check
Tells you the serial is valid and what AppleCare status it has. Doesn't tell you that the Mac in front of you is the one bearing that serial. Doesn't run a diagnostic. Doesn't check Activation Lock.
Third-party diagnostic tools
Surface useful per-domain data (SSD, battery, system). Output is local-only; not signed, not verifiable by a buyer, not bound to one device. Macfax wraps and verifies a similar feature set into one signed report.
Run a Mac diagnostic in under a minute.
Free on every Mac, as many times as you want to run it.