Thank you very much for your support!

Like I did mention above? And I should accept the trouble with the SEO?

The Problem is, that the same site should be available with the prices for 2022 and also for 2023. One time it is called with "Prices 2022" and the other time with "Prices 2023". Is there a way to have this handled?

link rel="canonical" href="https://www.wipfelglueck.de/Baumhaus.php" /

I did it with `` But if I have my site checked then it is obviously not so optimal for the search engines. The reason is "Internal Canonical Link". What does that mean?

Hello all, A parameter should always be passed to a page so that the prices valid for the respective year are always displayed there. But there is something wrong with the canonical tag. The tag looks like this:

The URL with which the page is called looks like this:

https://www.wipfelglueck.de/Baumhaus.php?prices=2023

With the SEO this is obviously problematic!? How do I make it right please? I have already looked at some pages with help on this, but I obviously lack the experience to implement this properly. BR Stefan