CheckWebsiteNow

Server errors (5xx)

501 Not Implemented

The server does not support what was asked.

Quick answer

A 501 means the server does not know how to handle this request method. Our check retries with a normal page request (GET), so a 501 here means even that was refused.

When to wait: Waiting rarely helps; it needs a server change.

If you are visiting the website

  1. Compare in your own browser Open the website yourself. Our check comes from one measuring point and may see something different from you.
  2. Tell the website owner If the problem stays, contact the website through another channel (email or social media) and tell them the exact error and time.

If you run the website

  1. Allow standard methods Make sure GET and HEAD are supported for public pages.
  2. Check server error logs Look at your web server and application logs for the time of the error. They usually name the exact cause.

Likely causes

  • Common The server or a proxy does not support the request method. (Website side)
  • Sometimes An outdated server or misconfigured gateway. (Website side)

Is the website down? Check it now

One measurement point. Results explain what we saw, not a worldwide verdict.

Sources

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