www.alchemy.com Open in urlscan Pro
2606:4700:4400::6812:2bf8  Public Scan

Submitted URL: https://rinkebyfaucet.com/
Effective URL: https://www.alchemy.com/overviews/rinkeby-testnet
Submission: On April 23 via api from FI — Scanned from FI

Form analysis 5 forms found in the DOM

Name: wf-form-Footer-Subscribe-FieldGET

<form id="email_footer_form" name="wf-form-Footer-Subscribe-Field" data-name="Footer Subscribe Field" method="get" class="subscribe_form is--recaptcha" aria-label="Footer Subscribe Field">
  <div class="subscribe-form__container is--footer">
    <div class="subscribe-form__container-top"><input type="email" class="text-field-2 is--footer w-input" maxlength="256" name="email" data-name="email" placeholder="Enter your email address" id="email_footer"><input type="submit" value=""
        data-wait="Please wait..." class="submit-button-2 w-button"></div>
  </div>
</form>

Name: email-formGET

<form id="email-form" name="email-form" data-name="Email Form" method="get" class="footer_form" aria-label="Email Form"><input type="email" class="footer-form_text-field w-input" maxlength="256" name="email" data-name="Email"
    placeholder="Enter your email address" id="email" required=""><input type="submit" value="" data-wait="Please wait..." class="footer_form-submit w-button"></form>

Name: email-formGET

<form id="email-form" name="email-form" data-name="Email Form" method="get" class="overview_newsletter-form" aria-label="Email Form"><input type="email" class="overview_newsletter-text-field w-input" maxlength="256" name="email" data-name="Email"
    placeholder="Enter your email address" id="email" required=""><input type="submit" value="" data-wait="Please wait..." class="overview_newsletter-button w-button"></form>

Name: wf-form-Footer-Subscribe-FieldGET

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        data-wait="Please wait..." class="submit-button-2 w-button"></div>
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    placeholder="Enter your email address" id="email" required=""><input type="submit" value="" data-wait="Please wait..." class="footer_form-submit w-button"></form>

Text Content

Q1 2023 Web3 Development Report revealed! Get all the alpha and insights 🚀

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APIs
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The web3 engine

Transact
Send txns 7.9x faster

NFT API
Build any NFT app

Transaction Simulation
Transactation previews for any use case

Webhooks
Real-time data for specific events

Account Abstraction
Smart contract wallet APIs

Custom Webhooks
Real-time data for custom events

Spearmint
Free and automated allowlists

Websockets
Blockchain connection for ongoing data


Transfers API
Complete transaction history in one call


Token API
Token balances and metadata
Ethereum
The decentralized L1

Solana
Powerful, efficient transactions

Polygon PoS
Low fees, high throughput

Astar
Connecting Polkadot to all L1s

Polygon zkEVM
Scalable security

Request a Chain
Request a chain we don't currently support

Starknet
Performance built on ZK-Rollups


Arbitrum
Instant L1 interoperability


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Ultra fast, EVM-compatible
Query blockchain data with two lines of code

Built on ethers.js to give you all ethers functionality, plus access to all of
Alchemy's Enhanced APIs

10x faster development cycles with Alchemy Infrastructure

Create Web3 Dapp

Bootstrap a dapp in 4 minutes

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Account Monitoring

Tools include reporting, alerts, analytics, and application monitoring.

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Monitor transactions with request explorer, request sandbox, mempool visualizer.

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Note
Sepolia
Oct 2021
PoW
Like-for-like representation of Ethereum
Görli
Jan 2019
PoA
Proof-of-Authority
Kiln
Mar 2022
PoS
Post-Merge (for ETH2), shadow fork of the mainnet
Kintsugi
Dec 2021
PoS
DEPRECATED, use Kiln; post-Merge (for ETH2)
Ropsten
Nov 2016
PoW
DEPRECATED, use Sepolia; the Merge to happen on Jun 8, 2022
Rinkeby
Apr 2017
PoA
DEPRECATED, use Görli and Görli Faucet
Kovan
Mar 2017
PoA
DEPRECATED, use Sepolia or Görli
List of active and deprecated Ethereum testnets, including Kintsugi.
Features
Optimistic rollup 
ZK-rollup 
Proof
Uses fraud proofs to prove transaction validity. 
Uses validity (zero-knowledge) proofs to prove transaction validity. 
Capital efficiency
Requires waiting through a 1-week delay (dispute period) before withdrawing
funds. 
Users can withdraw funds immediately because validity proofs provide
incontrovertible evidence of the authenticity of off-chain transactions. 
Data compression
Publishes full transaction data as calldata to Ethereum Mainnet, which increases
rollup costs. 
Doesn't need to publish transaction data on Ethereum because ZK-SNARKs and
ZK-STARKs already guarantee the accuracy of the rollup state. 
EVM compatibility
Uses a simulation of the Ethereum Virtual Machine (EVM), which allows it to run
arbitrary logic and support smart contracts. 
Doesn't widely support EVM computation, although a few EVM-compatible ZK-rollups
have appeared. 
Rollup costs
Reduces costs since it publishes minimal data on Ethereum and doesn't have to
post proofs for transactions, except in special circumstances. 
Faces higher overhead from costs involved in generating and verifying proofs for
every transaction block. ZK proofs require specialized, expensive hardware to
create and have high on-chain verification costs. 
Trust assumptions
Doesn't require a trusted setup. 
Requires a trusted setup to work. 
Liveness requirements
Verifiers are needed to keep tabs on the actual rollup state and the one
referenced in the state root to detect fraud. 
Users don't need someone to watch the L2 chain to detect fraud. 
Security properties 
Relies on cryptoeconomic incentives to assure users of rollup security. 
Relies on cryptographic guarantees for security. 
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curl 
https://release.solana.com/v1.10.32/solana-install-init-x86_64-pc-windows-msvc.exe 
--output 
C:\solana-install-tmp\solana-install-init.exe 
--create-dirs



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The blockchain for open worlds

Crypto.org
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Polygon’s 95x app growth

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Decentral Games
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Testnets
RINKEBY OVERVIEW


A COMPLETE GUIDE TO ETHEREUM'S RINKEBY TESTNET

What is Rinkeby, Why to Use it, and How to Get Started
Last Updated:
October 25, 2022
Table of Contents
What is the Rinkeby testnet?
How big is the Rinkeby testnet?
Why do developers use Rinkeby over other testnets?
How to get Rinkeby testnet ETH
How to Send Rinkeby Testnet ETH
What are the best Rinkeby testnet tools?
Start Building Using Rinkeby Today

Table of Contents

What is the Rinkeby testnet?
How big is the Rinkeby testnet?
Why do developers use Rinkeby over other testnets?
How to get Rinkeby testnet ETH
How to Send Rinkeby Testnet ETH
What are the best Rinkeby testnet tools?
Start Building Using Rinkeby Today

Table of Contents
What is the Rinkeby testnet?
How big is the Rinkeby testnet?
Why do developers use Rinkeby over other testnets?
How to get Rinkeby testnet ETH
How to Send Rinkeby Testnet ETH
What are the best Rinkeby testnet tools?
Start Building Using Rinkeby Today

Goerli faucet
Get free Goerli ETH.
Start building today


THE RINKEBY TESTNET IS DEPRECATED

The Rinkeby testnet was deprecated by the Ethereum Foundation on October 5th,
2022. On October 5th, 2022, Alchemy's Rinkeby faucet was deprecated. The Rinkeby
testnet will be read-only for the foreseeable future, and will be sunset in
Summer 2023. We recommend you migrate your contracts from Rinkeby and deploy new
ones on Goerli, and use Alchemy's Goerli Faucet to get free testnet ETH.


WHAT IS THE RINKEBY TESTNET?

The Rinkeby testnet is an Ethereum testnet that developers use to test
decentralized applications before deploying them to the Ethereum mainnet. The
network is a fork of the Ethereum mainnet that is run by pre-authorized nodes,
which prevents spam attacks and increases performance.

Developers can use a Rinkeby Faucet to get free testnet ETH and test their smart
contracts without the risk of losing real financial assets. Because it’s a
testnet, the currency is worthless. You can’t mine ETH within the Rinkeby
testnet, only request it. Authorized nodes can only create new blocks, meaning
no other nodes can be awarded mining rewards.

The Rinkeby testnet currently supports the following node clients: Geth, Besu,
Nethermind, and OpenEthereum. 

This article will explain the Rinkeby testnet, its main uses, the
Proof-of-Authority (PoA) consensus mechanism, how to get Rinkeby testnet ETH
from a Rinkeby faucet, how to send testnet ETH to other wallets, and the best
Rinkeby testnet tools to help accelerate your journey developing dApps. 


WHEN DID RINKEBY LAUNCH?

The Ethereum team launched the Rinkeby testnet in 2017 using a modified proof of
authority consensus model, and will be deprecated in favor of using the Goerli
testnet, another popular testnet that uses the proof of authority consensus
mechanism.

Rinkeby uses proof of authority (PoA), which is a modified form of Proof of
Stake (PoS).  Instead of staking with something that has monetary value, a
validator’s identity performs the staking to provide high performance while also
giving fault tolerance. The PoA consensus protocol is now maintained by the Geth
team. 


HOW BIG IS THE RINKEBY TESTNET?

There are currently about 11,000,000 blocks on the network and as of 2021,
Rinkeby had about 50 million transactions. There are 46 active nodes in the
Rinkeby testnet, and the block time for the Rinkeby testnet is about 15 seconds.
The max limit a block can be filled up with transactions is about 41,000.

The Block gas limit for the Rinkeby testnet is about 30 million gas. The gas
limit refers to the max price a cryptocurrency pays when sending a transaction,
or performing a smart contract function in the Ethereum blockchain.

Fees are calculated in gas units, and the gas limit defines the maximum value
that the transaction or function can "charge" or take from the user. With the
gas price at about 1,000 gwei and 0.1 h/s average network hash rate, it’s able
to provide 100% uptime with 30-80 ms page latency. 

For the most up-to-date stats, check out the Rinkeby statistics page. 


WHY DO DEVELOPERS USE RINKEBY OVER OTHER TESTNETS?

Many developers prefer Rinkeby because it’s more centralized compared to to PoW
testnets like Ropsten that can be easily spammed. Using PoA enhances security
overall in comparison to PoW. 

Developers also choose Rinkeby over other testnets due to its faster block time.
Ropsten has a block time of about 30 seconds, but Rinkeby cuts that time in
half. 

The chain data size for Rinkeby is only about 6GB. That means if you wanted to
run an Ethereum node for Rinkeby, it wouldn’t require a large amount of data
size compared to other testnets. 

Overall, Rinkeby is often known to be more reliable and faster than other
testnets.


WHAT ARE SOME DISADVANTAGES TO USING RINKEBY?

One disadvantage to using  Rinkeby is that its proof of authority blockchain
consensus model doesn’t fully simulate the production environment. This is
different from the Ropsten testnet where miners on the network have a financial
incentive to maintain the testnet itself. The Ropsten testnet also uses a PoW
consensus mechanism, which makes it identical to the current Ethereum consensus
mechanism which also uses Proof of Work. 

Unlike the Kovan testnet, Rinkeby’s testnet supports Geth software and not
Parity.


HOW DO DEVELOPERS USE THE RINKEBY TESTNET?

The main use case for using the Rinkeby testnet is for developers to test their
applications in a controlled testing environment that functions like Mainnet
Ethereum without taking the financial risk to execute smart contracts, iterate
application features, and perform functionality.

Rinkeby is famously used by well-known companies such as OpenSea, Manifold
Studios, and Rarible. They deploy their marketplaces on Rinkeby and Rarible to
deploy their NFT marketplaces on Rinkeby before deploying on mainnet.

Developers also use the testnet as an educational tool. Often, developers make
several mistakes along their journey. Using a testnet enables them to enhance
their understanding of how to use the main network better in the future. 

Finally, developers use Rinkeby to test upgrades to the underlying platforms.
This is essential to create better developer tools for the Web3 ecosystem and to
create more libraries, better documentation, and essential feedback overall. 

All these use cases relate to creating a safe space for developers to thrive.
Without testnets like Rinkeby, developers would bear the consequences of
potentially losing real-world assets, and they would have to be more careful
interacting with their smart contracts. 


HOW TO GET RINKEBY TESTNET ETH




You can easily receive testnet ETH through a testnet faucet. Testnet faucets
exist so developers can request funds and continue testing applications without
real financial risk. 

Alchemy’s Rinkeby faucet is one of the most used and reliable faucets up to
date. Here is how to make a test account for a Rinkeby faucet:


STEP 1: SIGN UP

This is very important. Sign up for a free Alchemy account to get five times as
many testnet Ether tokens as you would without an Alchemy account.


STEP 2: CHANGE YOUR NETWORK IN METAMASK

Open Metamask and click the network name located at the top right of the window.




STEP 3: ADD THE RINKEBY TEST NETWORK

Click the Add Network button at the bottom of the pop-up window.




STEP 4: ENTER THE RINKEBY TEST NETWORK DETAILS

Feel free to select the Rinkeby Test Network already provided from Metamask by
default.

If you signed up for a free Alchemy account, you will be able to get your new
RPC URL from the dashboard after creating a new app with the Rinkeby Testnet.
This will give you more features and abilities provided by Alchemy as your new
RPC URL node provider.

 * Network Name: Rinkeby Testnet
 * New RPC URL: https://eth-rinkeby.alchemyapi.io/v2/your-api-key
 * Chain ID: 4
 * Currency Symbol: ETH
 * Block Explorer URL: https://rinkeby.etherscan.io/


STEP 5: GET FREE RINKEBY ETH



To request funds, enter your wallet address and hit “Send Me ETH”. 

Remember, if you log in with Alchemy, you’ll receive 5x the amount of ETH for
free.

Note: We support wallets as received addresses but not smart contracts.

There you have it, you now instantly have testnet ETH in your Metamask wallet. 

As always, please try it out and share this with developers building on the
Rinkeby testnet that need fake ETH tokens.

If you have any feedback, feel free to let us know in Discord!


HOW TO SEND RINKEBY TESTNET ETH

Sending testnet ETH works the same as it does on the Ethereum Mainnet. Once
you’ve connected to the Rinkeby testnet network and received testnet ETH, follow
these steps:


STEP 1: SELECT "SEND" ON THE RINKEBY TEST NETWORK

Select the send button within your Metamask wallet. Make sure you are connected
to the Rinkeby Test Network, and then click the send button to send test ETH to
another Rinkeby account.




STEP 2: PASTE THE RECIPIENTS RINKEBY ADDRESS

From here, paste in the address of the wallet that will receive your testnet
ETH. In this example, we’ll use our Test Account 2 wallet address to send 0.01
ETH.

‍




STEP 3. CONFIRM THE TRANSACTION TO SEND RINKEBY ETH

Click confirm to send your transaction. Be aware that there are still gas fees
within testnets (which have no real value).

‍



That’s it! As you can see, our Test Account 2 wallet now has received 0.01
Rinkeby testnet ETH. 




WHAT ARE THE BEST RINKEBY TESTNET TOOLS?

Rinkeby works best with other blockchain developer tools to ensure you have a
great experience creating decentralized apps using a modern web3 tech stack.
Web3 developers should consider the depth and breadth of developer tooling that
is available. 


POPULAR WEB3 LIBRARIES

Two of the most used Web3 native libraries include ethers.js and web3.js. These
libraries natively support remote procedure calls (RPC) to blockchain nodes
hosted on the blockchain interaction layer. This enables more seamless
integration into a developer’s Web3 tech stack and reading and writing data to
the blockchain.

Alchemy has another Web3 library. The alchemy-web3.js library is a drop-in
replacement for web3.js and is built and configured to work seamlessly with
Alchemy and provide multiple advantages, such as automatic retries and robust
WebSocket support.


POPULAR WEB3 DEVELOPMENT ENVIRONMENTS

Fortunately, EVM-compatible chains benefit from years of Ethereum development
and have a host of battle-hardened options when it comes to development
environments.

Hardhat, Truffle, and Brownie are all great options when it comes to development
environments in Web3. These developer environments allow developers to compile,
test, deploy, and debug Ethereum software and testnets like Rinkeby. 

In addition, they come with more tooling and easily customizable local
blockchain development environments.

When it comes to decentralized storage, IPFS, Filebase, and Arweave serve as
great options. Decentralized storage fills in the gap for expensive and
inefficient frontend content like images, videos, and GIFs.




ALCHEMY TOOLS

Development platforms like Alchemy provide a large suite of tools for testing
and finding bugs:  Supernode, Build, Monitor, and Notify makes this whole
process much more convenient. 

Alchemy’s Rinkeby development platform and dashboard help developers easily
configure their needs in building Web3 decentralized applications. 

Alchemy’s JSON Composer helps developers create, fix, and share Ethereum
requests, making the engineering process much faster.

Finally, Rinkeby’s etherscan is useful to view transactions belonging to any
public Ethereum address. 


START BUILDING TODAY

As web3 grows from its current state to maturity, there will surely be paradigm
shifts, new web3 infrastructure tools, and plenty to learn. Using testnets is an
essential step to developing in web3 before deploying to Ethereum mainnet. With
the Rinkeby testnet deprecated, developers can build while having the security,
speed, and scalability alongside additional tools on the Goerli test network.

Join a growing movement of developers—both Web3 natives and fellow travelers
from Web2— and together we can build the future!

Related Overviews
Testnets


TOP SEPOLIA RPC PROVIDERS AND PUBLIC ENDPOINTS (2023)

Last Updated:
March 3, 2023

Explore the top dedicated Sepolia RPC node providers including Alchemy and
public Sepolia RPC endpoints like sepolia.org.

read more
Testnets
Testnets


HOW TO ADD SEPOLIA TO METAMASK

Last Updated:
March 22, 2023

Learn how to add Sepolia to your MetaMask wallet with a free and dedicated
Sepolia RPC endpoint from Alchemy!

read more
Testnets
Testnets


GOERLI VS. SEPOLIA TESTNET COMPARISON: WHICH IS BETTER?

Last Updated:
March 26, 2023

Determine which testnet is right for your needs by comparing the technical
differences, benefits, and tradeoffs between the Sepolia and Goerli testnets.

read more
Testnets
ALCHEMY SUPERNODE - ETHEREUM NODE API


SCALE TO ANY SIZE, WITHOUT ANY ERRORS

Alchemy Supernode finally makes it possible to scale blockchain applications
without all the headaches. Plus, our legendary support will guide you every step
of the way.

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Testnets
RINKEBY OVERVIEW


A COMPLETE GUIDE TO ETHEREUM'S RINKEBY TESTNET

What is Rinkeby, Why to Use it, and How to Get Started
Last Updated:
October 25, 2022
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Table of Contents

Text Link

Text Link
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What is the Rinkeby testnet?
How big is the Rinkeby testnet?
Why do developers use Rinkeby over other testnets?
How to get Rinkeby testnet ETH
How to Send Rinkeby Testnet ETH
What are the best Rinkeby testnet tools?
Start Building Using Rinkeby Today

Table of Contents
What is the Rinkeby testnet?
How big is the Rinkeby testnet?
Why do developers use Rinkeby over other testnets?
How to get Rinkeby testnet ETH
How to Send Rinkeby Testnet ETH
What are the best Rinkeby testnet tools?
Start Building Using Rinkeby Today

Table of Contents
The Rinkeby Testnet is Deprecated

What is the Rinkeby testnet?

When did Rinkeby launch?
How big is the Rinkeby testnet?
Why do developers use Rinkeby over other testnets?

What are some disadvantages to using Rinkeby?
How do developers use the Rinkeby testnet?
How to get Rinkeby testnet ETH

Step 1: Sign up
Step 2: Change your Network in Metamask
Step 3: Add the Rinkeby Test Network
Step 4: Enter the Rinkeby Test Network Details
Step 5: Get Free Rinkeby ETH
How to Send Rinkeby Testnet ETH

Step 1: Select "Send" on the Rinkeby Test Network
Step 2: Paste the Recipients Rinkeby Address
Step 3. Confirm the Transaction to Send Rinkeby ETH
What are the best Rinkeby testnet tools?

Popular Web3 Libraries
Popular Web3 Development Environments
Alchemy Tools
Start Building Today

Goerli faucet
Get free Goerli ETH.
Start building today



THE RINKEBY TESTNET IS DEPRECATED

The Rinkeby testnet was deprecated by the Ethereum Foundation on October 5th,
2022. On October 5th, 2022, Alchemy's Rinkeby faucet was deprecated. The Rinkeby
testnet will be read-only for the foreseeable future, and will be sunset in
Summer 2023. We recommend you migrate your contracts from Rinkeby and deploy new
ones on Goerli, and use Alchemy's Goerli Faucet to get free testnet ETH.


WHAT IS THE RINKEBY TESTNET?

The Rinkeby testnet is an Ethereum testnet that developers use to test
decentralized applications before deploying them to the Ethereum mainnet. The
network is a fork of the Ethereum mainnet that is run by pre-authorized nodes,
which prevents spam attacks and increases performance.

Developers can use a Rinkeby Faucet to get free testnet ETH and test their smart
contracts without the risk of losing real financial assets. Because it’s a
testnet, the currency is worthless. You can’t mine ETH within the Rinkeby
testnet, only request it. Authorized nodes can only create new blocks, meaning
no other nodes can be awarded mining rewards.

The Rinkeby testnet currently supports the following node clients: Geth, Besu,
Nethermind, and OpenEthereum. 

This article will explain the Rinkeby testnet, its main uses, the
Proof-of-Authority (PoA) consensus mechanism, how to get Rinkeby testnet ETH
from a Rinkeby faucet, how to send testnet ETH to other wallets, and the best
Rinkeby testnet tools to help accelerate your journey developing dApps. 


WHEN DID RINKEBY LAUNCH?

The Ethereum team launched the Rinkeby testnet in 2017 using a modified proof of
authority consensus model, and will be deprecated in favor of using the Goerli
testnet, another popular testnet that uses the proof of authority consensus
mechanism.

Rinkeby uses proof of authority (PoA), which is a modified form of Proof of
Stake (PoS).  Instead of staking with something that has monetary value, a
validator’s identity performs the staking to provide high performance while also
giving fault tolerance. The PoA consensus protocol is now maintained by the Geth
team. 


HOW BIG IS THE RINKEBY TESTNET?

There are currently about 11,000,000 blocks on the network and as of 2021,
Rinkeby had about 50 million transactions. There are 46 active nodes in the
Rinkeby testnet, and the block time for the Rinkeby testnet is about 15 seconds.
The max limit a block can be filled up with transactions is about 41,000.

The Block gas limit for the Rinkeby testnet is about 30 million gas. The gas
limit refers to the max price a cryptocurrency pays when sending a transaction,
or performing a smart contract function in the Ethereum blockchain.

Fees are calculated in gas units, and the gas limit defines the maximum value
that the transaction or function can "charge" or take from the user. With the
gas price at about 1,000 gwei and 0.1 h/s average network hash rate, it’s able
to provide 100% uptime with 30-80 ms page latency. 

For the most up-to-date stats, check out the Rinkeby statistics page. 


WHY DO DEVELOPERS USE RINKEBY OVER OTHER TESTNETS?

Many developers prefer Rinkeby because it’s more centralized compared to to PoW
testnets like Ropsten that can be easily spammed. Using PoA enhances security
overall in comparison to PoW. 

Developers also choose Rinkeby over other testnets due to its faster block time.
Ropsten has a block time of about 30 seconds, but Rinkeby cuts that time in
half. 

The chain data size for Rinkeby is only about 6GB. That means if you wanted to
run an Ethereum node for Rinkeby, it wouldn’t require a large amount of data
size compared to other testnets. 

Overall, Rinkeby is often known to be more reliable and faster than other
testnets.


WHAT ARE SOME DISADVANTAGES TO USING RINKEBY?

One disadvantage to using  Rinkeby is that its proof of authority blockchain
consensus model doesn’t fully simulate the production environment. This is
different from the Ropsten testnet where miners on the network have a financial
incentive to maintain the testnet itself. The Ropsten testnet also uses a PoW
consensus mechanism, which makes it identical to the current Ethereum consensus
mechanism which also uses Proof of Work. 

Unlike the Kovan testnet, Rinkeby’s testnet supports Geth software and not
Parity.


HOW DO DEVELOPERS USE THE RINKEBY TESTNET?

The main use case for using the Rinkeby testnet is for developers to test their
applications in a controlled testing environment that functions like Mainnet
Ethereum without taking the financial risk to execute smart contracts, iterate
application features, and perform functionality.

Rinkeby is famously used by well-known companies such as OpenSea, Manifold
Studios, and Rarible. They deploy their marketplaces on Rinkeby and Rarible to
deploy their NFT marketplaces on Rinkeby before deploying on mainnet.

Developers also use the testnet as an educational tool. Often, developers make
several mistakes along their journey. Using a testnet enables them to enhance
their understanding of how to use the main network better in the future. 

Finally, developers use Rinkeby to test upgrades to the underlying platforms.
This is essential to create better developer tools for the Web3 ecosystem and to
create more libraries, better documentation, and essential feedback overall. 

All these use cases relate to creating a safe space for developers to thrive.
Without testnets like Rinkeby, developers would bear the consequences of
potentially losing real-world assets, and they would have to be more careful
interacting with their smart contracts. 


HOW TO GET RINKEBY TESTNET ETH




You can easily receive testnet ETH through a testnet faucet. Testnet faucets
exist so developers can request funds and continue testing applications without
real financial risk. 

Alchemy’s Rinkeby faucet is one of the most used and reliable faucets up to
date. Here is how to make a test account for a Rinkeby faucet:


STEP 1: SIGN UP

This is very important. Sign up for a free Alchemy account to get five times as
many testnet Ether tokens as you would without an Alchemy account.


STEP 2: CHANGE YOUR NETWORK IN METAMASK

Open Metamask and click the network name located at the top right of the window.




STEP 3: ADD THE RINKEBY TEST NETWORK

Click the Add Network button at the bottom of the pop-up window.




STEP 4: ENTER THE RINKEBY TEST NETWORK DETAILS

Feel free to select the Rinkeby Test Network already provided from Metamask by
default.

If you signed up for a free Alchemy account, you will be able to get your new
RPC URL from the dashboard after creating a new app with the Rinkeby Testnet.
This will give you more features and abilities provided by Alchemy as your new
RPC URL node provider.

 * Network Name: Rinkeby Testnet
 * New RPC URL: https://eth-rinkeby.alchemyapi.io/v2/your-api-key
 * Chain ID: 4
 * Currency Symbol: ETH
 * Block Explorer URL: https://rinkeby.etherscan.io/


STEP 5: GET FREE RINKEBY ETH



To request funds, enter your wallet address and hit “Send Me ETH”. 

Remember, if you log in with Alchemy, you’ll receive 5x the amount of ETH for
free.

Note: We support wallets as received addresses but not smart contracts.

There you have it, you now instantly have testnet ETH in your Metamask wallet. 

As always, please try it out and share this with developers building on the
Rinkeby testnet that need fake ETH tokens.

If you have any feedback, feel free to let us know in Discord!


HOW TO SEND RINKEBY TESTNET ETH

Sending testnet ETH works the same as it does on the Ethereum Mainnet. Once
you’ve connected to the Rinkeby testnet network and received testnet ETH, follow
these steps:


STEP 1: SELECT "SEND" ON THE RINKEBY TEST NETWORK

Select the send button within your Metamask wallet. Make sure you are connected
to the Rinkeby Test Network, and then click the send button to send test ETH to
another Rinkeby account.




STEP 2: PASTE THE RECIPIENTS RINKEBY ADDRESS

From here, paste in the address of the wallet that will receive your testnet
ETH. In this example, we’ll use our Test Account 2 wallet address to send 0.01
ETH.

‍




STEP 3. CONFIRM THE TRANSACTION TO SEND RINKEBY ETH

Click confirm to send your transaction. Be aware that there are still gas fees
within testnets (which have no real value).

‍



That’s it! As you can see, our Test Account 2 wallet now has received 0.01
Rinkeby testnet ETH. 




WHAT ARE THE BEST RINKEBY TESTNET TOOLS?

Rinkeby works best with other blockchain developer tools to ensure you have a
great experience creating decentralized apps using a modern web3 tech stack.
Web3 developers should consider the depth and breadth of developer tooling that
is available. 


POPULAR WEB3 LIBRARIES

Two of the most used Web3 native libraries include ethers.js and web3.js. These
libraries natively support remote procedure calls (RPC) to blockchain nodes
hosted on the blockchain interaction layer. This enables more seamless
integration into a developer’s Web3 tech stack and reading and writing data to
the blockchain.

Alchemy has another Web3 library. The alchemy-web3.js library is a drop-in
replacement for web3.js and is built and configured to work seamlessly with
Alchemy and provide multiple advantages, such as automatic retries and robust
WebSocket support.


POPULAR WEB3 DEVELOPMENT ENVIRONMENTS

Fortunately, EVM-compatible chains benefit from years of Ethereum development
and have a host of battle-hardened options when it comes to development
environments.

Hardhat, Truffle, and Brownie are all great options when it comes to development
environments in Web3. These developer environments allow developers to compile,
test, deploy, and debug Ethereum software and testnets like Rinkeby. 

In addition, they come with more tooling and easily customizable local
blockchain development environments.

When it comes to decentralized storage, IPFS, Filebase, and Arweave serve as
great options. Decentralized storage fills in the gap for expensive and
inefficient frontend content like images, videos, and GIFs.




ALCHEMY TOOLS

Development platforms like Alchemy provide a large suite of tools for testing
and finding bugs:  Supernode, Build, Monitor, and Notify makes this whole
process much more convenient. 

Alchemy’s Rinkeby development platform and dashboard help developers easily
configure their needs in building Web3 decentralized applications. 

Alchemy’s JSON Composer helps developers create, fix, and share Ethereum
requests, making the engineering process much faster.

Finally, Rinkeby’s etherscan is useful to view transactions belonging to any
public Ethereum address. 


START BUILDING TODAY

As web3 grows from its current state to maturity, there will surely be paradigm
shifts, new web3 infrastructure tools, and plenty to learn. Using testnets is an
essential step to developing in web3 before deploying to Ethereum mainnet. With
the Rinkeby testnet deprecated, developers can build while having the security,
speed, and scalability alongside additional tools on the Goerli test network.

Join a growing movement of developers—both Web3 natives and fellow travelers
from Web2— and together we can build the future!


THE RINKEBY TESTNET IS DEPRECATED

The Rinkeby testnet was deprecated by the Ethereum Foundation on October 5th,
2022. On October 5th, 2022, Alchemy's Rinkeby faucet was deprecated. The Rinkeby
testnet will be read-only for the foreseeable future, and will be sunset in
Summer 2023. We recommend you migrate your contracts from Rinkeby and deploy new
ones on Goerli, and use Alchemy's Goerli Faucet to get free testnet ETH.


WHAT IS THE RINKEBY TESTNET?

The Rinkeby testnet is an Ethereum testnet that developers use to test
decentralized applications before deploying them to the Ethereum mainnet. The
network is a fork of the Ethereum mainnet that is run by pre-authorized nodes,
which prevents spam attacks and increases performance.

Developers can use a Rinkeby Faucet to get free testnet ETH and test their smart
contracts without the risk of losing real financial assets. Because it’s a
testnet, the currency is worthless. You can’t mine ETH within the Rinkeby
testnet, only request it. Authorized nodes can only create new blocks, meaning
no other nodes can be awarded mining rewards.

The Rinkeby testnet currently supports the following node clients: Geth, Besu,
Nethermind, and OpenEthereum. 

This article will explain the Rinkeby testnet, its main uses, the
Proof-of-Authority (PoA) consensus mechanism, how to get Rinkeby testnet ETH
from a Rinkeby faucet, how to send testnet ETH to other wallets, and the best
Rinkeby testnet tools to help accelerate your journey developing dApps. 


WHEN DID RINKEBY LAUNCH?

The Ethereum team launched the Rinkeby testnet in 2017 using a modified proof of
authority consensus model, and will be deprecated in favor of using the Goerli
testnet, another popular testnet that uses the proof of authority consensus
mechanism.

Rinkeby uses proof of authority (PoA), which is a modified form of Proof of
Stake (PoS).  Instead of staking with something that has monetary value, a
validator’s identity performs the staking to provide high performance while also
giving fault tolerance. The PoA consensus protocol is now maintained by the Geth
team. 


HOW BIG IS THE RINKEBY TESTNET?

There are currently about 11,000,000 blocks on the network and as of 2021,
Rinkeby had about 50 million transactions. There are 46 active nodes in the
Rinkeby testnet, and the block time for the Rinkeby testnet is about 15 seconds.
The max limit a block can be filled up with transactions is about 41,000.

The Block gas limit for the Rinkeby testnet is about 30 million gas. The gas
limit refers to the max price a cryptocurrency pays when sending a transaction,
or performing a smart contract function in the Ethereum blockchain.

Fees are calculated in gas units, and the gas limit defines the maximum value
that the transaction or function can "charge" or take from the user. With the
gas price at about 1,000 gwei and 0.1 h/s average network hash rate, it’s able
to provide 100% uptime with 30-80 ms page latency. 

For the most up-to-date stats, check out the Rinkeby statistics page. 


WHY DO DEVELOPERS USE RINKEBY OVER OTHER TESTNETS?

Many developers prefer Rinkeby because it’s more centralized compared to to PoW
testnets like Ropsten that can be easily spammed. Using PoA enhances security
overall in comparison to PoW. 

Developers also choose Rinkeby over other testnets due to its faster block time.
Ropsten has a block time of about 30 seconds, but Rinkeby cuts that time in
half. 

The chain data size for Rinkeby is only about 6GB. That means if you wanted to
run an Ethereum node for Rinkeby, it wouldn’t require a large amount of data
size compared to other testnets. 

Overall, Rinkeby is often known to be more reliable and faster than other
testnets.


WHAT ARE SOME DISADVANTAGES TO USING RINKEBY?

One disadvantage to using  Rinkeby is that its proof of authority blockchain
consensus model doesn’t fully simulate the production environment. This is
different from the Ropsten testnet where miners on the network have a financial
incentive to maintain the testnet itself. The Ropsten testnet also uses a PoW
consensus mechanism, which makes it identical to the current Ethereum consensus
mechanism which also uses Proof of Work. 

Unlike the Kovan testnet, Rinkeby’s testnet supports Geth software and not
Parity.


HOW DO DEVELOPERS USE THE RINKEBY TESTNET?

The main use case for using the Rinkeby testnet is for developers to test their
applications in a controlled testing environment that functions like Mainnet
Ethereum without taking the financial risk to execute smart contracts, iterate
application features, and perform functionality.

Rinkeby is famously used by well-known companies such as OpenSea, Manifold
Studios, and Rarible. They deploy their marketplaces on Rinkeby and Rarible to
deploy their NFT marketplaces on Rinkeby before deploying on mainnet.

Developers also use the testnet as an educational tool. Often, developers make
several mistakes along their journey. Using a testnet enables them to enhance
their understanding of how to use the main network better in the future. 

Finally, developers use Rinkeby to test upgrades to the underlying platforms.
This is essential to create better developer tools for the Web3 ecosystem and to
create more libraries, better documentation, and essential feedback overall. 

All these use cases relate to creating a safe space for developers to thrive.
Without testnets like Rinkeby, developers would bear the consequences of
potentially losing real-world assets, and they would have to be more careful
interacting with their smart contracts. 


HOW TO GET RINKEBY TESTNET ETH




You can easily receive testnet ETH through a testnet faucet. Testnet faucets
exist so developers can request funds and continue testing applications without
real financial risk. 

Alchemy’s Rinkeby faucet is one of the most used and reliable faucets up to
date. Here is how to make a test account for a Rinkeby faucet:


STEP 1: SIGN UP

This is very important. Sign up for a free Alchemy account to get five times as
many testnet Ether tokens as you would without an Alchemy account.


STEP 2: CHANGE YOUR NETWORK IN METAMASK

Open Metamask and click the network name located at the top right of the window.




STEP 3: ADD THE RINKEBY TEST NETWORK

Click the Add Network button at the bottom of the pop-up window.




STEP 4: ENTER THE RINKEBY TEST NETWORK DETAILS

Feel free to select the Rinkeby Test Network already provided from Metamask by
default.

If you signed up for a free Alchemy account, you will be able to get your new
RPC URL from the dashboard after creating a new app with the Rinkeby Testnet.
This will give you more features and abilities provided by Alchemy as your new
RPC URL node provider.

 * Network Name: Rinkeby Testnet
 * New RPC URL: https://eth-rinkeby.alchemyapi.io/v2/your-api-key
 * Chain ID: 4
 * Currency Symbol: ETH
 * Block Explorer URL: https://rinkeby.etherscan.io/


STEP 5: GET FREE RINKEBY ETH



To request funds, enter your wallet address and hit “Send Me ETH”. 

Remember, if you log in with Alchemy, you’ll receive 5x the amount of ETH for
free.

Note: We support wallets as received addresses but not smart contracts.

There you have it, you now instantly have testnet ETH in your Metamask wallet. 

As always, please try it out and share this with developers building on the
Rinkeby testnet that need fake ETH tokens.

If you have any feedback, feel free to let us know in Discord!


HOW TO SEND RINKEBY TESTNET ETH

Sending testnet ETH works the same as it does on the Ethereum Mainnet. Once
you’ve connected to the Rinkeby testnet network and received testnet ETH, follow
these steps:


STEP 1: SELECT "SEND" ON THE RINKEBY TEST NETWORK

Select the send button within your Metamask wallet. Make sure you are connected
to the Rinkeby Test Network, and then click the send button to send test ETH to
another Rinkeby account.




STEP 2: PASTE THE RECIPIENTS RINKEBY ADDRESS

From here, paste in the address of the wallet that will receive your testnet
ETH. In this example, we’ll use our Test Account 2 wallet address to send 0.01
ETH.

‍




STEP 3. CONFIRM THE TRANSACTION TO SEND RINKEBY ETH

Click confirm to send your transaction. Be aware that there are still gas fees
within testnets (which have no real value).

‍



That’s it! As you can see, our Test Account 2 wallet now has received 0.01
Rinkeby testnet ETH. 




WHAT ARE THE BEST RINKEBY TESTNET TOOLS?

Rinkeby works best with other blockchain developer tools to ensure you have a
great experience creating decentralized apps using a modern web3 tech stack.
Web3 developers should consider the depth and breadth of developer tooling that
is available. 


POPULAR WEB3 LIBRARIES

Two of the most used Web3 native libraries include ethers.js and web3.js. These
libraries natively support remote procedure calls (RPC) to blockchain nodes
hosted on the blockchain interaction layer. This enables more seamless
integration into a developer’s Web3 tech stack and reading and writing data to
the blockchain.

Alchemy has another Web3 library. The alchemy-web3.js library is a drop-in
replacement for web3.js and is built and configured to work seamlessly with
Alchemy and provide multiple advantages, such as automatic retries and robust
WebSocket support.


POPULAR WEB3 DEVELOPMENT ENVIRONMENTS

Fortunately, EVM-compatible chains benefit from years of Ethereum development
and have a host of battle-hardened options when it comes to development
environments.

Hardhat, Truffle, and Brownie are all great options when it comes to development
environments in Web3. These developer environments allow developers to compile,
test, deploy, and debug Ethereum software and testnets like Rinkeby. 

In addition, they come with more tooling and easily customizable local
blockchain development environments.

When it comes to decentralized storage, IPFS, Filebase, and Arweave serve as
great options. Decentralized storage fills in the gap for expensive and
inefficient frontend content like images, videos, and GIFs.




ALCHEMY TOOLS

Development platforms like Alchemy provide a large suite of tools for testing
and finding bugs:  Supernode, Build, Monitor, and Notify makes this whole
process much more convenient. 

Alchemy’s Rinkeby development platform and dashboard help developers easily
configure their needs in building Web3 decentralized applications. 

Alchemy’s JSON Composer helps developers create, fix, and share Ethereum
requests, making the engineering process much faster.

Finally, Rinkeby’s etherscan is useful to view transactions belonging to any
public Ethereum address. 


START BUILDING TODAY

As web3 grows from its current state to maturity, there will surely be paradigm
shifts, new web3 infrastructure tools, and plenty to learn. Using testnets is an
essential step to developing in web3 before deploying to Ethereum mainnet. With
the Rinkeby testnet deprecated, developers can build while having the security,
speed, and scalability alongside additional tools on the Goerli test network.

Join a growing movement of developers—both Web3 natives and fellow travelers
from Web2— and together we can build the future!


INTERESTED IN READING MORE?

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