Blockchainarbitrum.io

Is Arbitrum Down Right Now?

Arbitrum One is an Ethereum layer-2 optimistic rollup with sub-second block times. This page reads Arbitrum's latest block from a public RPC to tell you whether the network is producing blocks — or whether it's your wallet or a single node that's failing.

Block explorer ↗Official status page ↗
Producing blocksArbitrum mainnet

Arbitrum is producing blocks normally — the latest block was 2s ago (based on a public RPC, arb1.arbitrum.io).

Latest block
#477,318,154
Last block
2s ago
RPC latency
51ms
RPC node
arb1.arbitrum.io
Reads the latest block from a public RPC. One node's view — not a multi-node consensus.

What “Arbitrum is down” actually means

Arbitrum is a layer-2 rollup with a single sequencer, so an Arbitrum outage is typically a sequencer stall: transactions stop being ordered and no new L2 blocks appear, even though Ethereum L1 is healthy. Arbitrum has had sequencer-downtime incidents that paused the chain before it caught back up. This page reads Arbitrum One's latest block over a public RPC — a frozen block height points at the sequencer, not your wallet.

If Arbitrum seems down

1
Check status.arbitrum.io and whether the block height on arbiscan.io is frozen — together they confirm a sequencer outage.
2
During a true sequencer halt there's no RPC workaround; your funds remain safe on L2 and transactions resume on recovery.
3
If Arbitrum blocks ARE advancing but your dapp fails, switch its RPC to a fallback (arbitrum-one-rpc.publicnode.com).
4
Withdrawals to Ethereum L1 settle on a delay by design — a pending withdrawal is not evidence that Arbitrum is down.
5
Follow @arbitrum for official status during an incident.

Frequently asked questions

Is Arbitrum down right now?
This page reads Arbitrum's latest block from a public RPC. If the block height shown above is advancing, Arbitrum is producing blocks and is not down. A frozen, non-advancing height means the chain may be halted; an "RPC unreachable" result means we couldn't reach a node — which can be that node rather than the chain itself.
How does WebsiteDown check if Arbitrum is down?
We send a JSON-RPC request to a public Arbitrum endpoint and read the latest block and its timestamp. If it hasn't advanced past a Arbitrum-specific staleness threshold, we flag it as halted. We don't run a validator, so this is one node's view — confirm with the official status page during an incident.
Is the chain halted, or is it just my wallet or RPC?
Most "is Arbitrum down" moments are a wallet or a single RPC failing, not the chain. If the block height here is climbing, the network is live — switch your wallet's RPC endpoint. Only a frozen, non-advancing block height points to an actual Arbitrum halt.
What should I do if Arbitrum is halted?
There is no user-side fix for a true halt — your funds stay safe on-chain and transactions resume when the network restarts. Follow the official status channels linked above for restart timing instead of repeatedly resubmitting transactions.

Get told when Arbitrum halts

WebsiteDown can watch Arbitrum's block height on a schedule and email you if it stops advancing — no need to keep refreshing this page.

See monitoring plans →

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