All-in-one COA lookup with fake certificate protection

Enter or scan the complete certificate number and compare every returned field with the exact object in the listing. Check the signer or subject, item type, card year and set, grade, sticker or label number, and any available provider images. Ask for current front-and-back photos, review seller history, search for duplicated images and use protected payment. Save the listing and lookup result for valuable purchases. A certificate lookup is a strong first screen, but provenance and the physical item still matter.

Start with the certificate number. CheckCOA retrieves the provider record when available and automatically screens every lookup against our Fraud Alert database of 26,000+ known fake, stolen, reused and compromised certificate records. Fraud Alert is included free with every verification, but a clean result is not a guarantee of authenticity. Always compare item photos, seller history, provenance and provider details before buying.

Yes. The Listing Builder turns a certificate you have already verified into a ready-to-publish ebay.com listing. CheckCOA builds the title from the grader or authenticator's own published facts and writes the description from those same facts; it never invents a certificate number, grade or edition, and it never sets your price. You connect your eBay account once, review the listing, then confirm before anything goes live. Preparing a listing creates an unpublished offer that no buyer can see and that costs nothing.

Collector includes 20 published listings a month, one item at a time. Dealer has no monthly limit and lists in batches of up to 20 items. A listing counts only when it actually goes live, so building, editing and regenerating a listing are free, and the allowance resets on your billing date along with your scans.

Only what is needed to create your listings. You sign in on eBay's own page and CheckCOA never sees your eBay password. The connection requests permission to manage your inventory and listings, to read your business policies, and to confirm which account is connected. It does not request access to your orders, buyer messages or payouts. You can disconnect the account at any time in eBay Settings.

That scan type becomes unavailable until your next billing cycle. You can upgrade your plan or buy one-time packs to continue immediately.

No. One-time packs are non-expiring (unless explicitly stated otherwise at checkout).

Payments are processed securely by Stripe. CheckCOA never stores your full card details.

No. We are not affiliated with any Provider. We only display the information the Provider returns from its official sources.

No. We do not authenticate items. We only retrieve and display official Provider records for the certificate number you check.

In many cases, yes. CheckCOA can retrieve official results through our infrastructure even when a Provider site blocks direct access. Availability depends on the Provider’s current restrictions and uptime.

We support major global Providers for autograph verification and grading across cards, photos, video games, comics, and media. The supported list may expand over time.

Fraud Alert checks the certificate number against CheckCOA reports connected with stolen stickers, reused numbers, counterfeit paperwork or other suspicious activity. It is included with each verification as an additional warning layer. An alert should prompt closer review of the item, seller and provenance. No alert does not mean the physical item is genuine: a misuse that has not yet been reported will not appear, so the provider record and all visible item details still need to be compared.

Not necessarily, but it is a strong warning. It means the certificate number has been associated with suspicious activity (like sticker theft or multiple copies). You should verify the item's provenance carefully.