> For the complete documentation index, see [llms.txt](https://docs.unlimited.trade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.unlimited.trade/start-trading/or-unlimited-leverage-guide/backup-rpc-urls.md).

# Backup RPC URLs

Since <mark style="color:blue;">**Unlimited Leverage**</mark> is a decentralized exchange, querying of data and submitting of transactions go through an RPC URL.&#x20;

There may be times when the RPC URL is not as responsive as it should be, during these times you may notice data being slow to load or not loading on your page. It is also possible to hit the rate limit with the public Arbitrum RPC URL (<https://arb1.arbitrum.io/rpc>), which would result in 429 errors.

To continue using the platform during these times you can use a backup URL from [Alchemy](https://www.alchemy.com/), [Ankr](https://www.ankr.com/protocol/public/) or [QuickNode](https://www.quicknode.com/chains/arb), switch the RPC URL in the network settings of your wallet and the page should load faster after.

For a list of RPC URLs and their statuses see: <https://chainlist.org/>.


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