A 429 Too Many Requests error is a webserver’s code for: "Slow down! You're making requests faster than you're allowed to.".

How do I fix or troubleshoot a 429 Error?

Common steps include reloading the page in your browser, checking for typos in the URL, verifying server status, clearing browser cache or cookies, and contacting the website owner or server administrator if the error persists.

429 Error | Error-Message.Net

A 429 Too Many Requests error indicates that the user or client has sent too many requests in a given amount of time (“rate limiting”).

Websites and APIs deploy rate limiting to ensure fair usage, prevent denial-of-service (DoS) conditions, and stop automated scrapers or bots from overwhelming server capacity.

Determining why

You refreshed a page or clicked a button repeatedly in a short time.
An automated script, extension, or bot running on your network exceeded the site’s rate limit.
Multiple users on your shared office or university Wi-Fi share a single public IP address that triggered the limit.

Steps you could possibly take:

Wait before retrying - Most rate limits expire after a few seconds or minutes. Check if the response includes a Retry-After header indicating how long to wait.
Stop automated background requests - Turn off aggressive browser refresh extensions or parallel scrapers.
If you are an API developer:
- Implement exponential backoff in your client code.
- Cache responses locally to avoid redundant API queries.
- Contact the API provider to upgrade your API tier or request a higher quota.

Source: RFC 6585 Section 4 (Additional HTTP Status Codes)