If you've ever wondered what actually happens after you submit an item for authentication, you're not alone. The authentication industry has historically operated with in person authentication. Making the process less accessible to buyers and sellers. CheckCheck was built to protect both the buyer and seller from getting fooled by a fake item and along the way we built a process that's faster, more reliable, and more accountable than anything else available today.
Step 1: Install The App & Purchase Credits
Getting started with CheckCheck requires no subscription or upfront commitment. Just download the app onto your mobile device, create an account, and purchase credits. You add credits to your account, with bulk options available for high-volume users. Now you're ready to start submitting items whenever you need a check. Credits don't expire, so you can load up and authenticate on your own schedule.
Step 2: Capture Your Images to Authentication-Grade Standards
This is where most authentication services leave you on your own. Our app provides clear guidelines on exactly which photos to capture and how to frame them, so your submission gives authenticators everything they need to make an accurate call. Clear & focused pictures are vital, capturing the specific details (stitching, hardware, labels, soles, date codes) that authenticators use to confirm or deny authenticity. Better photos mean faster, more accurate results.
Step 3: Dual Expert Authentication
Here's what sets CheckCheck apart from every other service: two professional authenticators review your item independently. They don't confer before giving their verdict. Each expert brings years of hands-on authentication experience and is embedded at the source of counterfeit production. Meaning they've seen the best fakes up close and know exactly what to look for.
A PASS verdict is only issued when both experts independently agree. If there's any disagreement or uncertainty, the item doesn't automatically pass. This eliminates the single point of failure that exists in any one-authenticator system and dramatically reduces the risk of human error.
Turnaround is fast, results can come back in as little as 5 minutes, depending on the tier you select.
Step 4: Your Certificate of Authenticity (COA)
Once the verdict is in, CheckCheck issues a digital Certificate of Authenticity that you can download or print. The COA includes the item details, the authentication result, and a scannable QR code that verifies its legitimacy. Buyers can check the COA in real time, making it one of the most transparent authentication documents available in the resale market.
Why Two Experts Are Better Than One
The authentication industry has a consistency problem. Single-authenticator services are only as good as the person reviewing your item on that particular day. Fatigue, unfamiliarity with a specific variant, or a subpar photo submission can all tip a borderline call the wrong way.
Dual authentication creates a system of checks and balances. When two independent experts reach the same conclusion, you have genuine consensus, not a single opinion. This model mirrors the verification processes used in high-stakes industries from medicine to finance, where consequential decisions always require more than one sign-off.
Who Uses CheckCheck
CheckCheck supports over 365 brands and categories. From Air Jordans and Yeezys to Louis Vuitton, Chanel, Gucci, Rolex, Supreme, and beyond. Its used by individual buyers verifying a purchase before committing, resellers building trust with their customers, consignment shops authenticating inventory, and TikTok Shop sellers proving authenticity in real time during live streams.
More than 2.5 million items have been checked across every continent. That scale means CheckCheck's experts have seen more edge cases, more rare variants, and more high-quality fakes than almost any other service operating today.
Pricing That Makes Sense
Authentication shouldn't be a service only available to people buying five-figure items. CheckCheck starts at $6 per check, making professional authentication accessible whether you're buying a $150 hoodie or a $5,000 handbag. Volume discounts and business plans are available for sellers who authenticate regularly.
The math is simple: a single avoided fake purchase more than pays for hundreds of checks.
Want to see the process in action? Download CheckCheck and submit your first item today.