Get your item double-authenticated by experts in minutes
We verify collectibles,
We verify
Collectibles
Our dual-authentication process supports over 365 brands & categories including handbags,
sneakers, apparel, collectibles, with more brands being added almost every week.
See all brands supported →
How it works;
Walk through
the check
the check
01
Top up credits
Add credits to your account to start authenticating items anytime. Bulk credit options are also available for checks at scale.
02
Image Capture
Sellers capture images of the item, ensuring all key identifiers are clearly documented following CheckCheck’s authentication-grade standards.
03
Dual Authentication
Two professional checkers co-authenticate the item independently to ensure accuracy and consistency
04
COA Issuance
A digital Certificate of Authenticity (COA) is issued and made available for download or print
Every item submitted to CheckCheck goes through a secure authentication process that combines
advanced technology with human expert verification. Our specialists carefully review serial numbers, materials,
construction details, and item provenance to confirm product authenticity.
Authentication you can trust
”The combination of AI technology and human expertise is what sets CheckCheck apart.”
“CheckCheck offers a practical solution to the problem of counterfeit merchandising.”
”The goal of CheckCheck is to help out the community from being burned by replicas.”
CheckCheck has extended its trusted authentication services to this unique collectible space—protecting consumer trust and preserving the integrity of the market.
"The results are cross-checked by a team of real-life people with expert knowledge [...]”
What set us apart
Dual expert authentication
All items are checked by two experts with 5-10 years of experience, embedded at the source of counterfeits and trained to catch subtle details.
Real results.
Lightning Fast.
Turnaround times as fast as 5 minutes
Built for scale with enterprise features.
Learn more →Unbeatable pricing, starting at $6.
our pricing →
Exclusive Pricing for TikTok Sellers
As an official authentication partner of TikTok Shop, we support live sellers with fast, reliable authentication for luxury products.
Authenticating items as a live seller lets you show proof of authenticity in real time, increasing transparency and buyer trust.
We’re an official TikTok Shop authentication partner.
Get exclusive access to streamlined tools, faster checks, and seller-only benefits.
1B+ Users
Sell where people scroll
17x Opens/Day
Show up where they spend time
200B+ Video Views
Visibility that converts
2x ROI
Real returns, real fast
Checking at scale?
CheckCheck for Business is designed for high-volume sellers, consignment shops, and resale companies that authenticate multiple items at scale. Our business solutions help sellers streamline authentication, manage inventory efficiently, and maintain consistent product authenticity across all sales channels. Built to help resellers scale faster, protect margins, and sell with confidence.
Special Bulk Pricing
Financial Guarantee
Barcode scanning
Authentication Dashboard
API, SDK, and Webhooks
Shopify Integration