Reddit's ChatGPT Citations Fell 86%. Two Vendors Disagree by 4x on the Baseline.
PromptWatch measured Reddit at 3.83% of ChatGPT Search citations, then 0.52% four days later. Ahrefs measured the same platform over the same period at 16.7%. The same collapse happened in September 2025 and fully recovered. Here is what the number can and cannot tell you.