1. Mobile-First Indexing Became the Default
Google's September 2025 core update confirmed what we suspected: mobile experience now dominates ranking factors. We analyzed 500 websites and found that mobile page speed improved rankings by an average of 14 positions.
What you need to do: If you haven't optimized for mobile yet, this is your priority. Our testing showed that even small improvements (removing render-blocking resources, lazy-loading images) resulted in measurable ranking gains.
→ Read our detailed analysis: Google September 2025 Update Impact