This plugin has been closed as of August 30, 2019 and is not available for download. Reason: Guideline Violation.
As mentioned in support threads nearly two years ago, this plugin uses split() which is incompatible with PHP 7. This means your site will not be able update or post new content if enabled. Once an excellent plugin 12 years ago, it hasn't been updated in 12 years.
el plugin de SEO hubo tiempo que funcionó bien pero ya no trabaja como antes, probaré con otro