Two meta descriptions in the page

Symptom

Viewing the page source you see two <meta name="description"> tags (or two canonical/robots tags), one from your SEO plugin and one that looks like AISA's.

Cause

AISA only emits its own meta tags in Standalone mode (when no SEO plugin is detected). A duplicate normally means either a second SEO plugin is also active, or AISA's detection did not recognize your SEO plugin and fell back to Standalone, so both layers output tags.

Fix

Run only one SEO plugin. Deactivate any extra SEO plugin so a single one stays active — AISA then detects it and writes into it instead of emitting its own tags. If detection failed (for example a heavily customized plugin build), make sure the plugin's detection constant is present (WPSEO_VERSION, RANK_MATH_VERSION, SEOPRESS_VERSION or AIOSEO_VERSION); the Compatibility page shows which plugin AISA currently detects. In Standalone mode AISA is specifically built to output exactly one description, one canonical and one robots tag, so a duplicate there points to another plugin in the head.

Questions people ask

Does AISA double-up tags when Yoast is active? No. With any SEO plugin active, AISA suppresses its own head output by design — there should be exactly one of each tag.

How do I know which plugin AISA sees? Open AISA → Compatibility; the active plugin's column is highlighted.

Related

• Standalone mode (no SEO plugin)
• SEO-plugin adapters: Yoast, Rank Math, SEOPress, AIOSEO