This is wordpress plugin, not opencart
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The best opencart seo module
https://www.opencart.com/index.php?route=marketplace/extension/info&extension_id=6182
https://www.opencart.com/index.php?route=marketplace/extension/info&extension_id=39642
This plugin do
1641720931
or older opencart version free version
https://www.opencart.com/index.php?route=marketplace/extension/info&extension_id=11265