Nothing is stored, so nothing can become outdated
SEO plugins save what they calculate: a sitemap in a file, a title in a table, an index to rebuild. Then the site changes, and you have to remember to regenerate. nexya seo does the opposite—titles, descriptions, canonicals, sitemap, and llms.txt are calculated the moment the page is requested, based on the published content. There is no file to regenerate, so no outdated file.
What it places on each page
A title tag and a meta description, drawn from the page itself or its content type template. A canonical URL that knows how to count the pages of a paginated archive. A robots directive that follows the page and site settings. Open Graph tags and X cards, with the featured image or the first image of the page—and, with the Pro version, the one chosen for sharing. And a structured data block that describes the publisher, the site, the page, and its breadcrumb trail.
It steps aside for another plugin
As long as Yoast, Rank Math, or another SEO plugin is running, the module writes nothing at all. Two plugins placing titles, canonicals, and schema at the same time produce duplicate tags—which is worse than no SEO at all. It says so, it waits, and it takes over as soon as the other one is deactivated.
What it does not do
It does not analyze text readability and does not put green lights on keywords. This type of score measures compliance with a recipe, not the quality of a page—and encourages writing for the tool. It suggests a title and description drawn from the page, shows what Google will display, then stops there and lets you write.