I have never seen anything like this.

I have built an online MCP Inspector.

It's been one of the core pieces of SEO that's been driving a lot of traffic.

Then few months back it got de-indexed for no discernible reason.

I saw it then get re-indexed and quickly climb to the top of SERP.

And then de-indexed again...

The same pattern has repeated week over week for several months.

I cannot share the URL, but you can figure it out:

The project is GLAMA and the affected path is /mcp/inspector

What's happening?