There will be a TYPO3 upgrade to version 9 today between 10:30am and lunch (CET). The Extension Repository will have a maintenance page in this time and will be not available.
Thanks for your patience!
Search Engine Optimisation (SEO) for title tag, canonical tag, meta tags author, description and keywords and social media tags for google, opengraph/facebook and twitter.
Uploaded on 25 Nov 2018 by Dirk Wildt (Die Netzmacher)
This extension supports TYPO3: