# Block explorer + Testnet infrastructure 2025 **URL:** \ **Category:** Applications\ **Created:** [June 11, 2025, 11:34pm UTC](https://forum.zcashcommunity.com/t/block-explorer-testnet-infrastructure-2025/51451 "2025-06-11T23:34:01Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![emersonian](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/emersonian/32/42565_2.png) [@emersonian](https://forum.zcashcommunity.com/u/emersonian)\ **Post date:** [September 12, 2025, 1:56pm UTC](https://forum.zcashcommunity.com/t/block-explorer-testnet-infrastructure-2025/51451/8 "2025-09-12T13:56:48Z")
In case anyone’s blocked by this, we also maintain the following explorers: - Testnet: [explorer.testnet.zec.rocks](https://explorer.testnet.zec.rocks/) - Mainnet: [explorer.zec.rocks](https://explorer.zec.rocks/) And in the interest of raising awareness, there are many issues with the code. If someone experienced with Elixir or confident learning is looking for an easy grant, maintaining the block explorer is probably it: > > > The Zcash block explorer returns errors when viewing certain Zcash transactions.… > > I suspect that transactions with an OP\_RETURN are the culprit (anything in/out of Maya) but I have not had time to debug. > > Examples: > > https://explorer.zec.rocks/transactions/25a0788faa6ba912566b1fc8b9b79d42893b8a3d7bee6ec1e5e373dfbec13693 > > https://explorer.zec.rocks/transactions/88da26bee28d8c38b5aefbc542d4f434f65c7f857d12d324e8dae3d1b1dd5b07 > > https://explorer.zec.rocks/transactions/bcde0fcdbe44b8c24051b03cc63490f241ef652916e551f8e6d471027ef61102 > > Working elsewhere: > > https://blockchair.com/zcash/transaction/25a0788faa6ba912566b1fc8b9b79d42893b8a3d7bee6ec1e5e373dfbec13693 --- _[View the full topic](https://forum.zcashcommunity.com/t/block-explorer-testnet-infrastructure-2025/51451)._