You just bought an NFT. Or maybe you’ve held one for years and want to know if it’s still worth anything. Or you’re about to buy one and want to make sure it’s not a fake.
Whatever the reason, checking your NFT properly means verifying more than just the image. It means confirming who actually owns it, whether the creator is legitimate, where the file is stored, and what the market says it’s worth.
This guide covers every way to check your NFT – using free tools that anyone can access today.
What Does It Mean to “Check” an NFT?
When people search “check my NFT,” they usually want one (or more) of these things: verify that the NFT is authentic, confirm who owns it, see it in their wallet, inspect its metadata, check whether the file is stored safely, or find out what it’s worth.
All of this is possible because every NFT lives on a public blockchain. Each token has two pieces of identifying information: a contract address (which identifies the collection) and a Token ID (which identifies the specific item within that collection). Together, they act as your NFT’s fingerprint.
Everything about that NFT – who created it, when it was minted, every transaction it’s been involved in, and who holds it right now – is permanently recorded on the blockchain and visible to anyone. This transparency is what makes verification possible.
Your NFT also has metadata: a JSON file containing the name, description, image URL, and attributes (traits like “Background: Blue” or “Eyes: Laser”). The tokenURI field in the smart contract points to this metadata. Understanding where that metadata lives and what it contains is essential for checking your NFT thoroughly.
How to Check NFT Ownership
Ownership verification answers a simple question: does this wallet actually hold this NFT?
Using a Blockchain Explorer
A blockchain explorer is a search engine for the blockchain. You enter an address, transaction hash, or token identifier, and it returns every piece of public data associated with it.
For Ethereum NFTs, use Etherscan. Navigate to the contract address of the NFT collection, then search for your Token ID. You’ll see the current owner’s wallet address, the creation date, every transfer in the token’s history, and the smart contract details.
For Solana NFTs, use Solscan or Solana Explorer. For Polygon, use PolygonScan. Each works the same way – enter the contract address or Token ID and inspect the results.
For multi-chain checking, NFTScan supports over 20 blockchain networks – including Ethereum, Solana, BNB Chain, Polygon, Arbitrum, Optimism, Base, and more – from a single interface. You can enter any wallet address or collection and see all associated NFTs and transactions across chains.
What to look for: compare the current owner’s address with the seller’s address on the marketplace. If they don’t match, the person listing the NFT may not actually own it.
Using OpenSea or Another Marketplace
If you prefer a visual interface, go directly to the NFT’s page on a marketplace like OpenSea.
Every NFT listing on OpenSea has a “Details” section that shows the contract address, Token ID, token standard (ERC-721 or ERC-1155), the blockchain it lives on, and the current owner. You can also see the full transaction history – every mint, transfer, and sale.
You can navigate directly to any NFT on OpenSea using the URL format: opensea.io/assets/[blockchain]/[contract_address]/[token_id].
This method is beginner-friendly but has a limitation: it only works for NFTs that are indexed by that marketplace. If the NFT isn’t listed on OpenSea, you won’t find it there – use a blockchain explorer instead.
Viewing NFTs in Your Wallet
Sometimes “check my NFT” simply means “I want to see what I own.”
MetaMask has an NFTs tab that displays tokens associated with your wallet. However, MetaMask doesn’t always auto-detect every NFT. If yours isn’t showing up, you can import it manually: click “Import NFT” and enter the contract address and Token ID.
Phantom wallet automatically detects and displays Solana-based NFTs with no manual steps needed.
Coinbase Wallet supports NFTs across multiple blockchains and displays them in a dedicated gallery view.
For a broader view of everything you own across multiple wallets and chains, portfolio trackers like DeBank, Zerion, and Zapper aggregate your NFTs into a single dashboard. These are especially useful if you hold NFTs on different blockchains or across several wallets.
How to Verify NFT Authenticity
Ownership tells you who holds the token. Authenticity tells you whether the token is what it claims to be. This is the more critical check – especially before buying.
Check the Creator’s Verified Status
Start on the marketplace. Legitimate collections on OpenSea and other platforms display a verified badge (blue checkmark) next to the collection name. This means the creator has been authenticated by the platform.
If there’s no badge, cross-reference the creator. Check their official website, Twitter/X profile, and Instagram. Real artists and projects post about their releases, share minting announcements, and engage with their community. If you can’t find any online presence for the creator, proceed with extreme caution.
Inspect the Blockchain History
Open the NFT in a blockchain explorer and examine its history:
- Creation date – when was this NFT minted? Does it align with the project’s known launch date?
- Original minter’s address – does the minting wallet match the official creator’s known wallet?
- Resale frequency – has this NFT changed hands an unusual number of times in a short period? Rapid flipping can indicate wash trading.
- Interactions with suspicious addresses – are there transfers to and from wallets with no other activity?
Look for gaps or anomalies in the ownership chain. A clean, consistent history from a verified creator wallet is what you want to see.
Run a Reverse Image Search
This is one of the simplest and most effective fraud detection techniques – yet almost nobody talks about it.
Download the NFT image, then upload it to TinEye or Google Lens. These tools search the internet for visually similar or identical images. If matches appear that predate the mint date, the artwork was likely stolen from another artist and minted without permission.
This technique would have caught one of the most famous NFT scams: a fake Banksy NFT that sold for over $300,000. A quick reverse image search would have revealed the original source.
Search for Duplicates Across Marketplaces
Scammers frequently list the same stolen artwork on multiple platforms simultaneously. Search the NFT’s title, description, and image across OpenSea, Magic Eden, Rarible, and other marketplaces.
Because each blockchain creates unique identifiers, the same artwork appearing on multiple chains from different seller wallets is a major red flag. Legitimate creators occasionally mint on multiple chains, but they do so from verified accounts with consistent branding.
How to Check NFT Metadata and Storage
Metadata quality determines whether your NFT will survive long-term. If the metadata or the file it points to breaks, your NFT becomes a token pointing to nothing.
What Is NFT Metadata?
Every NFT has associated metadata – a small JSON file that typically contains:
- name – the title of the NFT
- description – what the artwork is about
- image – a URL pointing to the actual image or media file
- attributes – traits and properties (background, accessory, rarity tier, etc.)
The smart contract stores a tokenURI that points to this JSON. The JSON, in turn, points to the image. The image itself is almost never stored directly on the blockchain – it’s too expensive. Instead, it’s hosted somewhere else. Where it’s hosted matters enormously.
IPFS vs. Arweave vs. Centralized Storage
On-chain storage: the image data is embedded directly in the smart contract. This is permanent and can’t break, but it’s rare and expensive – only feasible for very small files (like the 24×24 pixel CryptoPunks).
IPFS (InterPlanetary File System): a decentralized storage network where files are addressed by their content hash rather than a server location. As long as at least one node “pins” the file, it stays accessible. IPFS is the most common storage method for NFTs. Look for image URLs starting with ipfs://.
Arweave: a permanent, pay-once-store-forever decentralized protocol. Once a file is uploaded to Arweave, it exists permanently. This is the gold standard for NFT storage.
Centralized server: the file is hosted on a regular web server (URL starts with https://somecompany.com/...). If that company shuts down, changes its infrastructure, or simply deletes the file, your NFT’s image disappears. This is the riskiest option and is more common than most people realize.
How to Inspect Your NFT’s Metadata
On OpenSea: go to your NFT’s page → scroll to “Details” → look for the metadata status. Some NFTs show a “Frozen” metadata badge, meaning the metadata is permanently stored and can’t be changed.
On Etherscan: go to the collection’s contract address → click “Read Contract” → find the tokenURI function → enter your Token ID → the result is the URL to your metadata JSON. Open it in a browser to see the raw data, including the image URL.
Using NFTScan: enter any wallet address or collection across 20+ supported blockchains. NFTScan parses and displays metadata for all indexed NFTs, making it easy to inspect without reading raw contract data.
Check what your image URL starts with: ipfs:// (good), ar:// (great – Arweave), or https:// pointing to a regular server (risky). If it’s on a centralized server, consider migrating it. The legacy CheckMyNFT tool was specifically designed to evaluate metadata quality and migrate assets from IPFS to Arweave for permanent storage.
How to Check NFT Value and Floor Price
Checking your NFT’s market value requires understanding two concepts: floor price and rarity.
Floor price is the lowest listed price for any NFT in a collection. It represents the minimum someone is willing to pay to own any piece from that collection. If the floor of a 10,000-piece collection is 0.5 ETH, that’s the baseline value.
NFT Price Floor (nftpricefloor.com) is the most focused tool for this. It tracks floor prices, historical price charts, sales data, and trade volume across top collections. You can see how a collection’s floor has moved over weeks, months, or years – essential for understanding whether your NFT is gaining or losing value.
OpenSea shows three key price metrics on every NFT page: last sale price, current best offer, and collection floor price. This gives you an instant snapshot of where your specific NFT sits relative to the collection.
Rarity tools like Rarity Sniper and rarity.tools rank individual NFTs within collections based on trait rarity scores. An NFT with rare traits (e.g., only 50 out of 10,000 have a “Gold Crown” attribute) will typically command a higher price than one with common traits, even within the same collection.
For deeper analytics, platforms like Nansen and DeBank combine on-chain data with wallet profiling, trading patterns, and social signals. These are more advanced and often used by active traders and analysts.
Red Flags: How to Spot a Fake NFT
Before buying any NFT, run through this checklist:
No verified badge. If the collection or creator isn’t verified on the marketplace, dig deeper before trusting it. Verification doesn’t guarantee quality, but its absence should raise your antenna.
Copied or suspiciously familiar artwork. If the art looks like a well-known collection but the collection name is slightly different (e.g., “Bored Apes Yatch Club” instead of “Bored Ape Yacht Club”), it’s almost certainly a copycat scam.
Price too good to be true. A rare CryptoPunk listed for 0.01 ETH is not a deal – it’s a trap. Suspiciously low prices on supposedly high-value items are a classic bait technique.
No creator presence online. Legitimate artists have social media accounts, portfolios, or community channels. If you can’t find the creator anywhere outside the marketplace listing, that’s a warning sign.
Reverse image search returns earlier matches. If TinEye or Google Lens finds the same artwork posted before the NFT was minted, the art was stolen.
Same artwork on multiple platforms from different wallets. Scammers cast wide nets. Check for duplicates across OpenSea, Magic Eden, Rarible, and others.
Metadata points to a centralized server. An image hosted on https://randomstartup.com/images/nft.png could vanish at any time. Prefer NFTs stored on IPFS or Arweave.
Anomalous transaction history. Rapid transfers between a small number of wallets may indicate wash trading designed to inflate the perceived demand.
Sleepminting. An advanced technique where a scammer mints an NFT inside a famous artist’s wallet and transfers it back to their own. The NFT appears to originate from the artist, but a careful look at the transaction history reveals the deception. Always check the actual minting transaction, not just the “created by” display.
Best Tools to Check Your NFT
Here’s a quick-reference guide to the tools mentioned throughout this article and what each does best:
NFTScan – multi-chain NFT explorer covering 20+ blockchains. View metadata, ownership, transaction history, and collection analytics from a single interface. Also offers API for developers. Best for: comprehensive multi-chain checking.
OpenSea – the largest NFT marketplace. View NFT details, ownership, transaction history, price data, and metadata status. Supports 9 blockchains. Best for: quick visual inspection and price checking.
Etherscan / Solscan / PolygonScan – free blockchain explorers for Ethereum, Solana, and Polygon respectively. Raw on-chain data: contract details, token transfers, wallet history. Best for: deep ownership and transaction verification.
NFT Price Floor – tracks floor prices, historical charts, sales volume, and collection rankings. Best for: evaluating collection-level value trends.
Rarity Sniper / rarity.tools – rarity ranking tools that score individual NFTs based on trait distribution within collections. Best for: understanding how rare (and potentially valuable) your specific NFT is.
TinEye / Google Lens – reverse image search engines. Best for: detecting stolen artwork or duplicate NFTs.
DeBank / Zerion / Zapper – multi-wallet portfolio trackers. View all your NFTs across different wallets and blockchains in one dashboard. Best for: seeing everything you own in one place.
Nansen – advanced blockchain analytics with NFT tracking, wallet profiling, and market intelligence. Best for: serious traders and analysts.
Frequently Asked Questions
How do I find the contract address and Token ID of my NFT?
On OpenSea, go to your NFT’s page and scroll down to the “Details” section – you’ll see both the contract address and Token ID listed there. In MetaMask, click on the NFT and view its details. On any blockchain explorer, searching your wallet address and filtering by NFT transactions will also reveal this information. These two values are all you need to look up any NFT on any tool.
Can someone fake NFT ownership?
No. NFT ownership is recorded on the blockchain and is publicly verifiable. No one can alter the blockchain record to claim ownership of a token they don’t hold. However, scammers can create fake copies of popular NFTs (different contract address, same image) and list them as if they’re the real thing. That’s why verifying the contract address against the official collection is essential.
What happens if my NFT’s image link breaks?
If your NFT’s image is stored on a centralized server that goes offline, the token still exists on the blockchain – but it points to a dead link. Your NFT effectively becomes a receipt for nothing visible. This is called “link rot.” To prevent it, check whether your NFT’s metadata references IPFS or Arweave storage. If it points to a centralized URL, consider migrating the asset to permanent decentralized storage.
How do I check if an NFT is rare?
Use a rarity ranking tool like Rarity Sniper or rarity.tools. These platforms analyze every NFT in a collection and score them based on trait distribution. An NFT with attributes that appear in fewer than 1% of the collection will rank much higher than one with common traits. Rarity directly influences value – collectors pay premiums for the rarest pieces.
Is there a way to check NFTs across all blockchains at once?
Yes. NFTScan supports over 20 blockchain networks from a single interface, making it the broadest multi-chain NFT explorer available. For portfolio tracking across multiple wallets and chains, DeBank, Zerion, and Zapper each offer unified dashboards where you can connect multiple wallets and see all your NFTs regardless of which blockchain they live on.