Web3 Domain Tools and Calculators
Look up ENS addresses, check primary names and expiry, compare ownership costs and model resale proceeds with free Web3 domain tools.
Make a clearer naming decision with visible assumptions. Use local calculators or read current ENS records without connecting a wallet.
Live ENS checks
Inspect current public records, then use the linked guide to understand the next step.
ENS Address Checker
Look up an ENS Ethereum receiving address, compare an expected destination and save a report with the checked block and time.
Run a check ↗Live / EthereumENS Primary Name Checker
Check an Ethereum address’s ENS primary name and verify that its forward and reverse records agree at the checked block.
Run a check ↗Live / EthereumENS Expiry Checker
Look up a second-level .eth registration expiry and onchain grace period, with a live Ethereum block and timestamp.
Run a check ↗Cost and date planning
Compare the full cost
Compare two names over the same holding period, including renewals and optional services.
Open tool ↗02 / SellingFind your break-even price
See seller fees, modeled proceeds and the minimum sale price needed to cover entered costs.
Open tool ↗03 / MaintenancePlan ENS renewal dates
Turn a known .eth expiry timestamp into a review date, grace boundary and premium boundary.
Open tool ↗Start with the decision you need to make
| Question | Useful tool |
|---|---|
| Which option costs less to maintain? | Use the ownership calculator with two comparable, current quotes. |
| What sale price covers my costs? | Use the resale calculator with the route’s actual fee and your own cost record. |
| When should I review a .eth registration? | Use the expiry planner with the timestamp from the official ENS App. |
| Which name fits my intended use? | Use our guided Web3 domain chooser and verify app support. |
More decision helpers
What these tools establish
Cost and sale outputs are arithmetic scenarios, not live checkout quotes or appraisals. The date planner uses a timestamp you supply; it does not query ownership or availability. The calculators run locally. Live ENS checks send public-record requests to PublicNode and may contact HTTPS offchain gateways. Entries are not stored by the tools. Copying or downloading a result creates a static record.
Live name lookup, market discovery, portfolio management and expiry monitoring also exist in this niche. The independent ENS.Tools documentation describes those workflows. Our first tools address the budget and maintenance decisions that readers can verify directly, without implying access to live market data.
Use a tool alongside its guide
Read the relevant product rules, capture a current quote, and then calculate. Keep the result with the original evidence. Revisit a saved scenario when pricing, ownership plans or provider terms change.
Sources and review
Official documentation reviewed 23 October 2026. Procedures and compatibility below are documentation-based; no purchase, wallet transaction or payout was performed.
ENS pricing and fees ↗ENS grace period behavior and restrictions ↗Unstoppable marketplace fees and requirements ↗