Where can you read the manga of The Seven Deadly Sins?

Does anyone know where to read further with the manga so if you are done with Netflix, if you can read somewhere the manga at the point on the Internet?

You can also read online eBooks you buy at the Amazon. The English version is currently up to Volume 29.

The anime would have the story currently up to volume 24 implemented.

So if I buy all volumes after 24 am I up to date? How much does it cost and how many pages does a band have?

And do I have to buy the paperback or what?

A volume has about 192 pages and costs 5.95 euro as an eBook.

Is licensed → either by eManga or in the bookstore.

If you want to read it online, you should buy it as an ebook so Kindle version. The paperback version is the physical version.

So I'm now close to 25 to buy tape, it costs only 1 euro and 18 cents, you can buy that in German? Or only in English?

Shortly as a supplement to the other answers: If you do not want to buy the manga (for whatever reason) and you have no problems with the English language, you can also read the fan translation.
You can find these for example here http://fanfox.net/manga/nanatsu_no_taizai/ or on mangareader.net, mangakakalot.com or other manga streaming sites.

The pages are especially useful if a manga that you want to read is not licensed in German and thus will not be published by us.

Sure it's Volume 25 and not Chapter 25? For the price, it should only be the single chapter / chapter.

Each normal volume / volume contains some chapters / chapters, but in some cases the chapters / chapters are also sold separately. This is for the people who do not want to wait for the next band and want to read the new chapter / chapter immediately.

Yes, the manga is also available in German.
As an eBook, this is only until Volume / Volume 15 appeared.
He appeared as paperback / manga up to volume 22 and volume / volume 23 will be released tomorrow (27.12.2018).

How can I read the manga on the site if it is licensed?

The license concerns Germany and thus the German language. The mentioned pages contain mangas, in which the japanese apparitions were scanned in, the text was retouched and the japanese were translated by fans into english.
In short, they are unofficial English translations - fan translations.
The German publishers could do nothing against it, if they wanted, because the web server is not in Germany and they have no real opportunity to take action against it.