AI Search Visibility Ranking & KPIs
for Cardiff SEO Agencies
Across the 8 pages that make up the SERP for “seo agency Cardiff”, we measure who is actually cited. And the AI ranking doesn't match Google's.
Google · Organic
thriveagency.com
#1 on Google
Gemini · Most Cited
clutch.co
8 citations · 7% share of voice
The Google leader is not the AI leader. clutch.co, only ranked 3ᵉ on Google, earns the highest visibility score in the market (83.3/100), while thriveagency.com, 1ᵉʳ on Google, falls to 7ᵉ out of 8.
63
Domains cited in this market
114
Total citations observed
8
Pages analyzed
Updated on August 16, 2026
Four signals measure AI semantic health for SEO Agency in Cardiff
Each domain's GEO Visibility Score combines its share of voice, citation probability, authority (E-E-A-T), and technical health.
68
Average citation probability
Out of 100. The market's theoretical ceiling is 85, i.e. 17 points of untapped headroom.
41,2
Market GEO health
A low composite score despite limited semantic coverage (57,5%).
+21,3%
Top 3 vs. rest authority gap
The organic Top 3 has an average E-E-A-T score of 49,5/100 versus 38,9/100 for the rest of the market.
57,5%
Market semantic coverage
The Top 3 (71,7%) covers the topic better than the organic leader itself (64,2%).
Based on real search intent for the keyword seo agency Cardiff, extracted from search data (Semrush).
720
Search Volume
50
Keyword Difficulty
$0.00
Avg. CPC
Google SERP vs AI Visibility: who dominates in Cardiff?
Comparison of the 8 seo agencies ranking on Google page 1, measured on their citability by AI (GEO Visibility Score). Weighting: 40% share of voice, 25% citation probability, 20% E-E-A-T authority, 15% technical health.
| GVS Rank | SEO Agencies | GVS Score | Google Rank | Δ vs Google | Real Citations | Share of Voice |
|---|---|---|---|---|---|---|
| 1 | clutch.co | 83.3 | #3 | ▲ +2 | 8 | 7% |
| 2 | omniseo.co.uk | 73.5 | #4 | ▲ +2 | 8 | 7% |
| 3 | cardiffmedia.co.uk | 66.3 | #8 | ▲ +5 | 6 | 5.3% |
| 4 | seoagencycardiff.co.uk | 56.5 | #2 | ▼ -2 | 3 | 2.6% |
| 5 | lumenseo.co.uk | 52.6 | #6 | ▲ +1 | 4 | 3.5% |
| 6 | appearonline.co.uk | 44.3 | #5 | ▼ -1 | 1 | 0.9% |
| 7 | thriveagency.comGoogle Leader | 42.1 | #1 | ▼ -6 | — | — |
| 8 | sequenceseo.com | 36.1 | #9 | ▲ +1 | — | — |
Δ = rank gained or lost between the Google rank and the GEO Visibility Score rank. Citations and share of voice shown come from Gemini. 2 entries (thriveagency.com, sequenceseo.com) don't appear in any citation captured in this sample: their score reflects only their citation probability, authority, and technical health.
The domains most cited by Gemini
Citation Ranking Top 10: the seo agencies most cited by Gemini for "seo agency Cardiff".
| # | Domain | Citations | Share of Voice | SERP Rank |
|---|---|---|---|---|
| 1 | clutch.coLeader | 8 | 7% | #3 |
| 2 | omniseo.co.uk | 8 | 7% | #4 |
| 3 | cardiffmedia.co.uk | 6 | 5.3% | #8 |
| 4 | walshandpartners.co.uk | 5 | 4.4% | Outside Top10 |
| 5 | themanifest.com | 5 | 4.4% | Outside Top10 |
| 6 | semrush.com | 5 | 4.4% | Outside Top10 |
| 7 | lumenseo.co.uk | 4 | 3.5% | #6 |
| 8 | trueseo.co.uk | 4 | 3.5% | Outside Top10 |
| 9 | seoworks.co.uk | 4 | 3.5% | Outside Top10 |
| 10 | webspection.co.uk | 3 | 2.6% | Outside Top10 |
99.1% of citations come from “Corporate” sources, versus 0.9% UGC. walshandpartners.co.uk, themanifest.com, semrush.com, trueseo.co.uk, seoworks.co.uk, webspection.co.uk are heavily cited without appearing in the organic Top 8. That's a positioning opportunity independent of the classic Google ranking.
What AI models ask to cite an SEO Agency in Cardiff
20 sub-queries generated from the intent "seo agency Cardiff", grouped into 4 categories. 19 of 20 (95%) generated at least one identifiable citation.
Entity
Attributes
Process
Comparison
Two editorial angles compete over SEO Agency in Cardiff
The topical breakdown of pages in the corpus reveals where competition concentrates and the angle to break through.
37.5%
Impact of AI tools on business enquiries
Driven by the organic leader (thriveagency.com, www.appearonline.co.uk, www.lumenseo.co.uk).
50%
Managing SEO projects and engine optimization
Driven by the domain most cited by AI (clutch.co, omniseo.co.uk, www.cardiffmedia.co.uk…).
4,744 differentiator terms, only 256 consensus terms
The market is far from exhausting its distinctive vocabulary, but maturity (22.4%) and lexical diversity (6.8%) remain low.
18.1%
Entry Barrier
22.4%
Market Maturity
6.8%
Lexical Diversity
78.6%
Leader Distinctiveness
Consensus terms (256)
Differentiator terms (4,744)
Recommendations to improve AI search visibility for SEO Agency in Cardiff in AEO/GEO
Overall GEO health is moderate (41.21/100) despite moderate semantic coverage (0.575).
Average citation probability (68.0) is 17.0 points below the theoretical maximum (85.0).
A 17.0 point gap to market ceiling indicates significant room for improvement in LLM citability.
How we calculate this score
The GEO Visibility Score weighs four signals: real share of voice in citations (40%), citation probability (25%), domain E-E-A-T authority (20%), and technical health (15%).
What is your AI search visibility in Cardiff?
Request a full audit of your domain: share of voice, citation probability, E-E-A-T authority, and technical health — using the same analysis engine as this index.
Audit generated on August 16, 2026 · Corpus of 8 pages · 20 sub-queries analyzed
GeoCitation, the AI search visibility observatory.