If your organic traffic estimate moved without your rankings moving, a quiet default change is the likely cause.
Around 4 September 2026, Ahrefs made its "adaptive" organic traffic model the default across Site Explorer, replacing the older "static" calculation. The switch is confirmed in Ahrefs' own API documentation, which now lists the default as adaptive, it was dated to early September in the aggregated Ahrefs API changelog, and it surfaced in Search Engine Roundtable's 7 September recap. The adaptive model itself launched as an opt-in in early August and re-weights the search-result features it accounts for, including AI Overviews, recalculating on a more frequent basis. The static method is still available if you request it, but adaptive is what you now get without doing anything.
A measurement change, not a ranking drop
If the organic traffic or traffic value figure in your Ahrefs reports, or your agency's, looks lower or higher than last month, the method is the likely reason. The adaptive model tries to reflect that AI answers such as AI Overviews absorb some clicks before a searcher ever reaches your site. That is a change in how being found gets counted, not a sign of a penalty or a lost ranking. The estimated numbers shifted; your actual position in results did not.
The calm move is straightforward. Note the switch, compare like with like by requesting the static basis when you need last month's yardstick, and treat the adaptive figure as the more current read from here. This sits inside a wider shift in how being found is measured as AI answers reshape search behaviour, and it is why defensible AI-visibility metrics matter more each month. If the new figures are prompting harder questions about your standing, that is where a conversation about getting found in AI answers earns its place.
Frequently asked questions
Did my website lose traffic?
No. The number changed because Ahrefs changed how it estimates traffic, moving to its adaptive model by default around 4 September 2026. Your actual visits and rankings are not affected by this switch.
Do I need to do anything?
No action is required. If you want to compare against last month on the old basis, you or your agency can request the static calculation in Ahrefs; otherwise the adaptive figure is now the default read.
Why did my traffic value drop?
The adaptive model accounts for search features like AI Overviews that absorb clicks, so estimated organic traffic and traffic value can move even when your rankings hold steady. It is a methodology update, dated around 4 September 2026 in Ahrefs' API documentation.
Does this affect only Ahrefs, or my other reports too?
This specific change is Ahrefs' own default for Site Explorer, in both its interface and its API, worldwide, so Australian and UK accounts are included. Other tools estimate traffic their own way and are unaffected by it.
Should I switch back to the static model?
For a clean month-on-month comparison you can, but the adaptive model is Ahrefs' current best estimate and reflects AI answers eating clicks. Most firms are better served reading the new number and watching the trend from here.
