How to verify a Freedom Diagnostics Testing COA
Check a certificate with the laboratory that issued it, not with the seller. These are the steps we use ourselves (check L3 in How we rate). Research use only.
- Certificates confirmed
- 507
Certificates confirmed
- Vendors confirmed
- 42
Vendors confirmed
Four steps
Find the code on the certificate
Each certificate prints a search code, a short string of letters and digits that identifies the report.
Open the laboratory's own lookup
Open coas.freedomdiagnosticstesting.com/<code>.pdf, replacing <code> with the search code exactly as printed. Type the address yourself rather than following a link from the seller, and make sure the page is on the laboratory's own domain.
Compare the result with the vendor's copy
A real code returns the laboratory's own PDF (an HTTP 200 response) hosted on the laboratory's domain. Compare its product, lot, client, test date, purity and quantity with the vendor's copy. The product, lot, client name, test date, purity and quantity should all match; any difference in these is a material difference.
Run the control check
An invented code returns 404 (not found). If a made-up code also returns a report, the lookup proves nothing. Change one character of a real code and look it up again: a lookup that answers every code proves nothing.
freedomdiagnosticstesting.com → (opens in new tab)
Our check (L3, pass): On 2026-10-22 the search code on a NuScience certificate returned the laboratory's PDF, and an invented code returned 404.
What a confirmation is worth in our scores
On a Freedom Diagnostics Testing certificate, a printed key earns +1.5 and a key we confirm at the laboratory earns another +1.5 under our lab rule. Only confirmed certificates count toward the testing gate (rule A9). We have confirmed 507 of 519 certificates naming Freedom Diagnostics Testing, from 42 vendors; the vendors are listed on the Freedom Diagnostics Testing profile. For what every field on a certificate means, read how to read a peptide COA.
Verifying Freedom Diagnostics Testing: Frequently Asked Questions
Can I verify a Freedom Diagnostics Testing COA online?
Yes. Each certificate prints a search code, a short string of letters and digits that identifies the report. Open coas.freedomdiagnosticstesting.com/<code>.pdf, replacing <code> with the search code exactly as printed. A real code returns the laboratory's own PDF (an HTTP 200 response) hosted on the laboratory's domain. Compare its product, lot, client, test date, purity and quantity with the vendor's copy.
What should an invented Freedom Diagnostics Testing code return?
An invented code returns 404 (not found). If a made-up code also returns a report, the lookup proves nothing. We ran this control when we checked the lookup on 2026-10-22.
How many Freedom Diagnostics Testing certificates has Peptide Source Review confirmed?
507 of the 519 certificates naming Freedom Diagnostics Testing on listed vendors' pages were confirmed against the laboratory's own record, from 42 vendors.
What tier is Freedom Diagnostics Testing?
Freedom Diagnostics Testing is tier A in our lab directory, graded on six published checks. Check L3 is whether its reports can be confirmed with the laboratory.