Block Explorer Directory

Ecosystem Updates
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I made a survey of Block Explorers for Zcash available on the web right now.* I hope it is valuable to the community as-is, and also can be extended if other community members want to offer links or updates.

ZCASH BLOCK EXPLORER DIRECTORY

MAINNET

Nighthawk, by cacho. ZCG Funded. Pledged no trackers. Onion address available.

http://zcashfgzdzxwiy7yq74uejvo2ykppu4pzgioplcvdnpmc6gcu5k6vwyd.onion/

Fork of Nighthawk, by emersonian. Previously ZCG funded, now crowdfunded. no IP logging policy. running zcashd.

emersonian. Previously ZCG funded, now crowdfunded. Trezor blockbook running zebrad 2.5.0

3xpl. Multi-coin multi-language. No ads. Fast. Onion address available. Hackable with sign-up (free for students and academics): Database dumps, PDF exports, JSON/Websocket API.

http://3xplor3rzajysy4j5fi3g3k27vivfcw75zjxdb2tg2wpz3i4cdiyhxyd.onion/

NowNodes. difficult without js. Free API key.

Trezor blockbooks.

TESTNET †

†The testnet explorers here, currently, seem to be running on at least two different forks (re-orgs) of the testnet chain.

Nighthawk, cacho. Pledged no trackers. ZCG Funded.

Nighthawk, cacho. ZCG funded. Pledged no trackers.

The same onion addresses as listed on the mainnet explorer are linked from both testnet explorers above as well.
(http://zcashfgzdzxwiy7yq74uejvo2ykppu4pzgioplcvdnpmc6gcu5k6vwyd.onion/)

emersonian.

pittmutt. needs js.

MEMPOOL

needs js. mempool only. cute! ପ(๑•ᴗ-๑)ଓ :heart:

NETWORK ETC

Coinwarz. Difficulty, hashrate.

BRIDGES

Near network. needs js, cloudflare.

https://nearblocks.io/token/zec.omft.near

Maya Protocol. needs js. doesn’t explore blocks.

NOT GREAT

needs js

needs js, charts and some info but not a full block explorer

so many scripts :sob:

https://blockexplorer.one/zcash/mainnet

https://blockexplorer.one/zcash/testnet

NOT FUNCTIONING

str4d.

https://explorer.testnet.z.cash/

Blockchair. block-level inspection appears broken. needs js. multi-coin multi-language. Onion address available.

http://blkchairbknpn73cfjhevhla7rkp4ed5gg2knctvv7it4lioy22defid.onion/

ERR_TOO_MANY_REDIRECTS

https://zcha.in/

unknown

https://zcash.blockexplorer.com/

https://minergate.com/blockchain/zec/blocks

https://zcash.plutomonkey.com/

https://explorer.zecmate.com/

https://explorer.zcashfr.io/insight/

gambling page

https://zcashnetwork.info/

does not currently support zec

https://chain.so/

*Shoutout to @dismad and @Edicksonjga who offered me some links, @pacu and @emersonian for clarifications.

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As mentioned in Blockexplorer grant, testnet explorer is up.

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From the URL, I enable javascript and click blocks along the top navigation bar, I get to

https://testnet.zcashexplorer.app/blocks

where I see internal server error.

If I click on a specific block by blockheight, for example to here, the page loads as a 504 Gateway Time-out

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Thanks, that’s a great resource

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It’s syncing. The blockheight is a little higher every time you refresh.

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Amazing research thank you for investing the time into this!

We also maintain a Blockbook explorer for Zcash, I have found it to be the most reliable. We are working towards running a Blockbook also for testnet. Interestingly, Blockbook works with zebra 2.5.0 whereas the Nighthawk explorer (explorer.zec.rocks) requires zcashd.

In terms of errors being thrown on Zec.rocks explorer endpoints, those are issues with the Nighthawk explorer source code, I believe that the errors happen at all endpoints but could be wrong.

An example: https://mainnet.zcashexplorer.app/transactions/25a0788faa6ba912566b1fc8b9b79d42893b8a3d7bee6ec1e5e373dfbec13693

I’m trying to track patterns here: Transactions with an OP_RETURN throw errors · Issue #9 · zcash/zcash-explorer · GitHub

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Thank you to everyone for the nice words and adding more information about this topic.

I see for testnet.zcashexplorer.app that the displayed block count is lagging behind what is shown on testnet-zebra.zcashexplorer.app - but only by a few thousand blocks. I’ll keep an eye on that. I also heard of a rather large reorg happening recently on testnet but didn’t dig on that yet.

@emersonian I’ll look at the issue you’re describing, and check out the new link.

I plan to update the initial post in this thread in the next day or two, and will continue to do so for a while as well, so long as I can edit it.

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For those following, I’ve updated (edited) the guide above. Here are my remarks:

  • @emersonian 's mentioned bugs are present for certain transactions across the Nighthawk-based explorers. Because this seems to be exceptional, these explorers mostly work; the bug may be because of the presence of an OP_RETURN in transactions. I’ve promoted all of @Cacho 's testnet explorers, which now have synced.
  • However, the testnet explorers I examined seem to be tracking different chains, perhaps based on which full-node they are following, with the zebrad-backed explorers being about 7000 blocks ahead of the zcashd-backed explorers. For an example of divergent blocks at the same height see:
    zebrad-backed https://testnet-zebra.zcashexplorer.app/blocks/3585752
    vs.
    zcashd-backed https://testnet.zcashexplorer.app/blocks/3585752
    Without remarking much more, I wanted to communicate that it seems possible I myself will be working with creating a new or retooling existing block explorers for zcash, and one thing I would want to focus on is chain re-orgs: clear visibility across these kinds of forks.
  • I found a single site that was interested only in difficulty/hashrate that I didn’t know about, added now. Are there more like this one? What do they observe?
  • I didn’t follow the .onion links above, but in one case there is a single address linked across multiple explorer sites. If a community member would like to find out the truth of these links That would be great.

Anything to add? Correct me on? Please post here and I’ll continue to update this topic, for at least a while.

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I’m not sure if Emerson is funded by ZCG at the moment. @emersonian

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Perhaps rephrase to “Previously ZCG funded, now crowdfunded” I think our last grant payment was in March 2025 range.

We currently receive sufficient donations to our published addresses to cover server costs, I campaign pretty hard in private conversations to get certain people to contribute.

Zec.rocks also has a strong no IP logging policy emphasized in other threads but we should probably pull that into a formal privacy policy that we host.

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