Question 1

How do I check Polygon RPC status and keep RPC healthy?

Accepted Answer

Polygon RPC status is best understood as the health of the RPC layer your app depends on, not a single global metric. A public endpoint can look fine while your requests fail because of rate limiting, a stale head, or a missing archive/trace method. This page shows how to confirm the chain is producing blocks, how to probe your own endpoint, and how to tell whether the problem is the network or your provider. It also covers when a shared public endpoint is enough and when a dedicated Polygon node or managed RPC API removes the guesswork.

Question 2

Solana Endpoint Issues: How to Diagnose and Fix RPC Failures

Accepted Answer

Solana endpoint issues can stall dApps and trading bots. This article walks through common failure modes—timeouts, 429s, WebSocket drops, and slot lag—and shows how to diagnose them with curl and monitoring. It also explains when a public endpoint is the bottleneck and how a dedicated RPC node can stabilize your workload.

Question 3

What is Solana deadnet and how do you avoid it?

Accepted Answer

Solana deadnet is a community term for deprecated or non-functional Solana network environments, often confused with devnet or testnet. This article clarifies what deadnet means, how it differs from active clusters, and how to choose reliable RPC endpoints for development and testing.

Question 4

What is a nonce in crypto and how does it affect RPC calls?

Accepted Answer

A nonce is a number used once in cryptographic communications. In crypto, it serves two primary purposes: as a counter in proof-of-work mining (Bitcoin) and as a transaction sequence number (Ethereum). Understanding nonces is crucial for debugging RPC errors like 'nonce too low' or 'nonce too high' that prevent transactions from being mined.

Question 5

What is a nonce in crypto?

Accepted Answer

# What is a nonce in crypto? A nonce in crypto is a value used for one specific transaction, message, or block attempt. In Ethereum-style account systems, it usually means the transaction counter for an address: the next transaction must use the next expected nonce, or the network rejects, queues, or replaces it depending on the situation. In proof-of-work systems, a block nonce is different: miners change it while searching for a block hash that satisfies the network difficulty. Both meanings are about uniqueness, but developers should separate transaction nonce debugging from mining or cryptographic nonce concepts.

In practice, the useful question is not just whether an endpoint exists. Teams should check sender ordering, pending transactions, replacement rules, and how the RPC layer reports transaction state. That turns the page from a definition into a decision tool: it helps you decide what to test first, what belongs in staging, and when a production workload may need stronger isolation or clearer request visibility. If you already know the network you need, open /networks/eth after using this checklist so you can test the endpoint against your real methods.

Question 6

What is a nonce in blockchain transactions?

Accepted Answer

A blockchain nonce is a number used to order transactions, prevent replayed transactions, and prove work in some block production systems. In account-based chains such as Ethereum, the transaction nonce increases each time an account sends a transaction, which lets the network process transactions in the intended order. If an app sends many transactions through an RPC endpoint, nonce handling becomes part of production reliability. OnFinality helps teams connect wallets, dApps, backend services, and trading systems to reliable RPC infrastructure so they can monitor request patterns, debug transaction issues, and scale endpoint access as traffic grows.

In practice, the useful question is not just whether an endpoint exists. Teams should check sender ordering, pending transactions, replacement rules, and how the RPC layer reports transaction state. That turns the page from a definition into a decision tool: it helps you decide what to test first, what belongs in staging, and when a production workload may need stronger isolation or clearer request visibility. If you already know the network you need, open /networks after using this checklist so you can test the endpoint against your real methods.

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RPC documentation entries

How do I check Polygon RPC status and keep RPC healthy?

Solana Endpoint Issues: How to Diagnose and Fix RPC Failures

What is Solana deadnet and how do you avoid it?

What is a nonce in crypto and how does it affect RPC calls?

What is a nonce in crypto?

What is a nonce in blockchain transactions?

Never Worry about Infrastructure Again

Supported Networks

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Company

Resources

RPC Troubleshooting RPC Assistant

RPC documentation entries

How do I check Polygon RPC status and keep RPC healthy?

Solana Endpoint Issues: How to Diagnose and Fix RPC Failures

What is Solana deadnet and how do you avoid it?

What is a nonce in crypto and how does it affect RPC calls?

What is a nonce in crypto?

What is a nonce in blockchain transactions?

Never Worry about Infrastructure Again

Supported Networks

Product

Company

Resources