About
CheckCheck is a fast, reliable authentication service designed to combat counterfeit goods in the resale market. Every submission goes through a rigorous dual-authentication process: two independent experts with 5–10 years of experience review each item simultaneously, checking serial numbers, materials, construction details, and provenance before issuing a verdict. A digital Certificate of Authenticity (COA) is generated for every passing item, available for download or print. The platform supports over 365 brands and categories — including luxury handbags, sneakers, streetwear, and collectibles — with new brands added weekly. Turnaround times can be as fast as 5 minutes, making it practical even for live sellers. CheckCheck for Business is purpose-built for high-volume sellers, consignment shops, and resale companies. It offers bulk credit pricing, a financial guarantee, barcode scanning, an authentication dashboard, and full API, SDK, and Webhook integrations — including a native Shopify integration. CheckCheck is also an official TikTok Shop authentication partner, giving live sellers streamlined tools to demonstrate product authenticity in real time. Whether you're an individual buyer wanting peace of mind, a reseller protecting margins, or an enterprise marketplace maintaining consumer trust, CheckCheck provides a scalable, technology-backed authentication solution that is both fast and credible.
Key Features
- Dual Expert Authentication: Every item is independently reviewed by two specialists with 5–10 years of experience, ensuring accuracy and consistency before a result is issued.
- Digital Certificate of Authenticity (COA): Each authenticated item receives a downloadable or printable COA, providing verifiable proof of authenticity for buyers and sellers.
- Lightning-Fast Turnaround: Authentication results can be delivered in as little as 5 minutes, making it viable even for live-selling scenarios on platforms like TikTok Shop.
- Enterprise & API Integration: CheckCheck for Business offers API, SDK, and Webhook support, a Shopify integration, barcode scanning, and bulk credit pricing for high-volume operations.
- 365+ Brand Coverage: Supports authentication across more than 365 brands and categories including handbags, sneakers, apparel, and collectibles, with new brands added weekly.
Use Cases
- Individual sneaker buyers verifying the authenticity of a resale purchase before completing payment.
- Luxury resellers authenticating handbags and accessories to provide buyers with a trusted COA and justify pricing.
- Live-stream sellers on TikTok Shop demonstrating real-time proof of authenticity to increase buyer confidence.
- Consignment shops and resale platforms integrating CheckCheck's API to automate authentication checks at scale across their inventory.
- Collectibles marketplace operators ensuring product integrity and consumer trust by requiring CheckCheck verification for high-value listings.
Pros
- Two-Expert Verification Reduces Errors: Requiring consensus from two independent authenticators significantly lowers the risk of false positives or missed fakes compared to single-reviewer services.
- Built for Scale: The business tier with API/SDK/Webhooks, Shopify integration, and bulk pricing makes it easy to integrate authentication into high-volume resale workflows.
- Extremely Fast Results: A 5-minute turnaround option enables real-time use cases like live-stream selling, giving sellers a competitive transparency advantage.
- Broad Brand & Category Support: With 365+ supported brands across multiple product categories and continuous additions, CheckCheck covers a wide range of the resale market.
Cons
- Credit-Based Pricing Model: Authentication requires purchasing credits upfront, which may be less convenient for occasional users compared to a simple per-check payment flow.
- Primarily App-Driven: The core authentication workflow is centered on a mobile app, which may limit usability for sellers who prefer fully desktop-based operations.
- Not Fully Automated: While AI assists the process, human expert review is always required, meaning throughput is ultimately constrained by authenticator availability.
Frequently Asked Questions
How does CheckCheck authentication work?
You start a check in the app, follow photo guidelines to capture key identifiers, and upload your images. Two independent expert authenticators then review the item separately. A PASS is only issued if both experts agree the item meets CheckCheck's authenticity standards. A digital COA is then issued.
How fast are authentication results?
Turnaround times can be as fast as 5 minutes, depending on the item and volume of checks in the queue.
What brands and categories does CheckCheck support?
CheckCheck supports over 365 brands and categories, including luxury handbags, sneakers, streetwear, apparel, and collectibles. New brands are added almost every week.
Is there a solution for high-volume sellers or businesses?
Yes. CheckCheck for Business is designed for consignment shops, resale companies, and high-volume sellers. It includes bulk credit pricing, a financial guarantee, barcode scanning, an authentication dashboard, and API/SDK/Webhook and Shopify integrations.
What is the pricing for CheckCheck?
CheckCheck pricing starts at $6 per authentication check, with bulk credit options available for businesses that authenticate at scale. A free introductory check may be available to new users.
