Review block explorers info (#539)

* Arronax seems not to be active anymore

* Update and clarify block explorers topic

* Remove unused topic

* Remove topics that cover block explorers in detail

Author: timothymcmackin

docs/developing/information/block-explorers.md

@@ -1,45 +1,56 @@
 ---
-title: Block Explorers
+title: Block explorers
 last_update:
-  date: 22 December 2023
+  date: 31 January 2025
 ---
 
-**What is a blockchain explorer?**
-
-A _blockchain explorer_, also known as a _block explorer_, is an app that tracks activity on a blockchain. All transactions ever performed on a network can be viewed using such a tool.
+A _blockchain explorer_, also known as a _block explorer_, is an app that tracks activity on a blockchain.
+They record all transactions made on a network and allow users to search for transactions by the hash of the transaction or the accounts involved in the transaction.
 
 **Blockchain explorers are like search engines for blockchains.**
 
-You can think of it as a window into the blockchain world, allowing you to observe what's happening in it.
+You can think of a block explorer as a window into the blockchain world, allowing you to observe what's happening in it.
 
-Cryptocurrency users and developers use such a tool to view the status of past or present transactions.
+Cryptocurrency users and developers use such a tool to view the status of past or present transactions, look up information about accounts, and see information about tokens.
 
-Some of the most basic information available on blockchain explorers includes (but are not limited to):
+Some of the most basic information available on blockchain explorers includes (but is not limited to):
 
 * **Block feed**: This allows you to view all the confirmed and pending blocks on the blockchain.
 * **Transaction feed**: The transaction feed displays all the most recent and pending transactions.
 * **Transaction viewer**: Each transaction can be viewed individually to reveal the public addresses of the sending and receiving parties.
-* **Wallet history**: All past and present transactions of an individual wallet address.
+* **Account history**: All past and present transactions of an individual account address.
+* **Smart contract status**: Information about smart contracts, including their interface and current balance and information about the tokens they manage.
+* **Staking and delegation**: Information about which accounts are staking and delegating to which other accounts and information about the rewards for bakers and stakers.
 
-#### Block Explorer use cases
+## Block explorer use cases
 
-Block explorers are not only made for casual users to check if their coins are still safe or for delegators to verify that their baker is not cheating with their earnings.
+Many different kinds of users use block explorers:
 
-Block explorers are also used by:
+* Individual Tezos users who need to check their token balances and staking rewards
+* Blockchain engineers who develop and debug new Tezos features
+* App developers who need debugging tools and more visibility into the current and past state of their contracts running on testnets and Mainnet
+* Bakers and staking services who need reliable data about delegation and earnings history to calculate correct payouts, plan their bond pools, and execute operations
+* Auditors and regulators who need a trusted copy of the full on-chain history in a format that's easy to digest for spreadsheets and compliance tools
 
-* blockchain engineers who develop and debug new features in sandboxes (e.g. new blockchain consensus).
-* app developers who need debugging tools and more visibility into the current and past state of their contracts running on internal testnets and Mainnet.
+Different block explorers show data in different ways, so if one block explorer doesn't show information that you need or use the format that you need, try a different one.
+For example, some block explorers focus on information about bakers.
+Also, [Explorus](https://explorus.io/) has a section on the Data Availability Layer.
 
-* bakers and staking services who need reliable data about delegation and earnings history to calculate correct payouts, plan their bond pools and execute operations.
-* less technical user groups like auditors and regulators with strict requirements for data quality, as they need to access a trusted copy of the full on-chain history in a format that's easy to digest for their spreadsheets and compliance tools.
+## Public block explorers
 
 Here are some commonly used Tezos block explorers:
 
 - [TzStats](https://tzstats.com/)
 - [TzKT](https://tzkt.io/)
-- [Arronax](https://arronax.io)
 - [Baking Bad](https://baking-bad.org)
 - [Better Call Dev](https://better-call.dev)
 - [Explorus](https://explorus.io/)
 - [Etherlink Explorer](https://explorer.etherlink.com/)
 - [TzFlow](https://tzflow.com/)
+
+If you can't find the information that you need on public block explorers, you can set up an [indexer](/developing/information/indexers) to get the information that you need.
+
+## APIs
+
+Some block explorers provide public APIs that developers can call to get information from.
+For example, the [TzKT](https://tzkt.io/) block explorer has documentation for its API at https://api.tzkt.io.