Automatic link extension - Joomla! Forum - community, help and support

i looking automatic link extension links words within article article or category internally. besides this:

1) while doing that, omit headers or not distort words have links.
2) instead of part of word, recognize exact words.
3) won't change format of word.
4) can limit number of links in page.
5) code must w3c-valid.
6) must seo friendly.
unfortunately extensions directory doesn't contain extension has these qualifications.
(i wish native part of joomla!)

do know 1 that?

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i see there options in extensions directory. not cheap worth money if worked well. sure love know if has used these , found strengths , weeknesses!

i want these linked keywords hyperlink k2 items on site when keyword shows on site. idea seems save lot of time , create lot more cross-linking on site. cross-link external sites.

here see of options:
extensions.joomla.org/extensions/site-management/seo-a-metadata/automatic-links