[TASK] Move general seo recommendations from EXT:seo manual (#5175)

See also https://forge.typo3.org/issues/105885

Releases: main, 13.4

Author: linawolf

Documentation/ApiOverview/Seo/GeneralRecommendations/Index.rst

@@ -0,0 +1,50 @@
+:navigation-title: General Recommendations
+..  include:: /Includes.rst.txt
+
+..  _seo-recommendations:
+
+==============================================
+General SEO Recommendations for TYPO3 projects
+==============================================
+
+..  _seo-recommendations-extensions:
+
+Recommendations for additional SEO extensions
+=============================================
+
+The TYPO3 Core ships the whole API and the needed fields to fulfill all necessary technical
+requirements of implementing SEO.
+
+Besides that, there are lots of tools you can use to optimize your rankings.
+
+If you install additional SEO extensions in TYPO3, make sure you check the following recommendations:
+
+*   The extension **should** stick to the Core fields where possible
+*   The extension **should** stick to the Core behaviour where possible
+*   The extension **could** extend TCA with additional helpers for your editors, like:
+
+    *   Readability checks
+    *   Keyword and content checks
+    *   Previews
+    *   Page speed insights
+    *   Large-Language-Model (LLM)-enabled text creation
+
+Some of these tools might need external services, others can work completely on-premise.
+
+..  _seo-recommendations-field-description:
+
+Recommendations for the `description` field
+===========================================
+
+..  danger::
+
+    Current state of SEO research states that the description in the meta-tags
+    should be either lovely crafted by hand, or left out completely. (end of 2019)
+
+    If you are unsure contact an expert.
+
+*   Duplicate meta descriptions should only be used under specific circumstances
+*   Duplicate meta descriptions should only be used on a few pages
+*   Leave the description empty if you do not can provide one
+*   Provide an engaging explanation of your page, to ensure people will be motivated to visit your site
+*   If SEO is not your thing, professional services are available to support you

Documentation/ApiOverview/Seo/Index.rst

@@ -72,4 +72,5 @@ SEO for Developers
     :maxdepth: 1
     :glob:
 
+    GeneralRecommendations/Index
     *