The SEO test results are clear, as expected the linked from webpage AND the linked to home page is ranked for the Google search phrase (the image links alt text), screenshot above.
You will note only two webpages are found for this Google search and the linked to result includes a “Missing: Valid 1” notice because those words are NOT present within that home pages content.
The image link from the linked from webpage is passing alt text SEO benefit through the non-unique link with a valid anchor** for those words just like we see with anchor text.
** The URL includes #branding (an anchor), on the home page there’s a div with ID “branding”, so https://seo-gold.com/#branding is a valid anchor link.
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