The week commencing 31 Aug saw distinct gains for official information sources within the BrandInsightAI macro dataset. Specifically, gov.uk gained 0.5pp of AI citation share week over week, moving from 0.2% to 0.7%.
This movement was primarily driven by ChatGPT behaviour across the recorded model responses. Additionally, nhs.uk entered the positive movers list with a gain of 0.2pp, reaching 0.3% share.
While public sector sites advanced, google.com lost 1.9pp of AI citation share week over week, falling from 2.6% to 0.8%. This drop was driven by Google AIO model outputs.
Other domains experienced downward pressure in the dataset. reddit.com lost 0.9pp, moving from 2.7% to 1.8% with Gemini as the recorded driver model.
Model stability metrics indicate stark differences in source retention. Grok refreshed 100% of its top-50 sources this week, showing zero overlap with the previous period.
By comparison, Gemini maintained a 32% overlap in its top sources, representing the highest stability among the 6 models covered in the dataset.
Each dot is one domain; horizontal position is its exact share change, w/c 24 Aug → w/c 31 Aug. Dot area is citation volume; the vertical spread is layout only.Data table
Series
Value
gov.uk
+0.5pp
moneysavingexpert.com
+0.4pp
carwow.co.uk
+0.4pp
which.co.uk
+0.4pp
nhs.uk
+0.2pp
youtube.com
+0.2pp
citizensadvice.org.uk
+0.2pp
google.com
-1.9pp
reddit.com
-0.9pp
facebook.com
-0.5pp
tripadvisor.com
-0.4pp
tiktok.com
-0.3pp
instagram.com
-0.3pp
runrepeat.com
-0.2pp
outdoorgearlab.com
-0.2pp
booking.com
-0.2pp
gov.ae
-0.2pp
Method & limitations
Data reflects visibility within the BrandInsightAI macro dataset and does not capture direct user traffic or conversion metrics.
Model behavior and citation patterns can fluctuate rapidly week over week as demonstrated by source turnover rates.
How every figure on this page is counted, floored and
reviewed: our methodology.
