The agent successfully synthesized a coherent explanation of Trader.co.uk's core business model and positioning, but encountered a poorly navigable site with many key pages returning 404 errors and incomplete public documentation. The agent compensated by using web search and third-party review sites, uncovering a significant credibility gap: seller fees are not publicly disclosed, and Trustpilot reviews contradict the platform's transparency claims.

• ›Core business and buyer fee (£100 flat) came from the homepage fetch [0] and search-surfaced content [7], but the site's own internal pages (/pricing, /how-it-works, /sell, /about) all returned 404s, forcing reliance on search results and external review aggregation.
• ›Seller fee structure remains opaque — the agent found no official published rates and had to acknowledge this gap explicitly. Search results [7] only provided industry benchmarks (5–15%), not Trader.co.uk's actual rates.
• ›Trustpilot [6] was the only third-party source fetched and revealed severe trust issues (all 1-star reviews citing hidden fees including £120 relisting charges, vehicle misrepresentation, refund delays) that directly contradict the site's 'transparent pricing' messaging — a critical finding the agent highlighted.
• ›The compare-platforms page [8] exists but is a routing/indexing tool rather than a substantive differentiator resource; it does not explain Trader.co.uk's own advantages, only that such comparisons are available elsewhere.
• ›The agent had to construct the final answer largely from search snippets [7] and the homepage [0], then validate against external reviews [6], rather than finding a dedicated, authoritative public resource on the site itself. The £100 buyer fee and trade-only positioning came from search results, not site-native documentation.