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Performance Marketing
DiamondBet Casino operated 5 casino brands under one umbrella but their SEO efforts were cannibalizing each other — all 5 sites competed for the same keywords with duplicate content. We designed a portfolio SEO strategy that gave each brand distinct keyword territories, consolidated link equity through strategic cross-linking, pruned 3,000+ thin pages, and implemented a shared content team that produced unique authority content for each brand.
DiamondBet Casino operated a portfolio of 5 online casino brands targeting different market segments — a mainstream casino, a VIP-focused brand, a slots-only site, a live dealer specialist, and a crypto casino. Despite investing in SEO for each brand individually, organic traffic across the portfolio had plateaued at 180K combined monthly sessions and was actually declining 3-5% quarter-over-quarter.
The root cause was severe keyword cannibalization: all 5 brands were targeting the same high-value keywords, competing against each other in search results, and diluting the authority of the entire portfolio. Google was confused about which brand to rank for terms like 'best online casino' and 'online slots real money,' often ranking none of them on page one.
Additionally, years of aggressive content production had left each site with hundreds of thin, duplicate, and outdated pages — over 8,000 pages across the portfolio, many with zero organic traffic. The portfolio's backlink profiles were also cannibalizing each other, with link-building teams occasionally building links to competing internal pages.
Technical SEO debt was substantial: crawl budgets were wasted on low-value pages, internal linking was chaotic, and Core Web Vitals scores were poor across all sites.
We conducted a comprehensive portfolio SEO audit and executed a 12-month enterprise strategy to eliminate cannibalization, prune dead weight, and establish clear topical authority lanes for each brand. Portfolio Keyword Architecture: we mapped every target keyword to a single 'owning' brand based on topical relevance and existing authority.
The mainstream casino owned broad terms ('best online casino,' 'casino bonus'), the slots site owned all slot-specific queries, the live dealer brand owned live casino terms, the VIP brand targeted high-roller and premium queries, and the crypto casino owned blockchain gambling terms.
Each brand's content calendar was aligned to its keyword territory with zero overlap. Content Pruning: we audited all 8,000+ pages across the portfolio using traffic, ranking, backlink, and content quality metrics. We identified and actioned 3,000+ pages for pruning — 1,200 were 301-redirected to stronger pages on the appropriate brand, 800 were consolidated (merging 2-3 thin pages into one comprehensive resource), 600 were updated and expanded, and 400+ were noindexed or removed entirely.
This pruning recovered massive crawl budget and concentrated authority on the remaining high-quality pages. Cross-Brand Link Architecture: we redesigned internal linking across all 5 sites, implementing hub-and-spoke structures within each brand and strategic cross-brand links where they made editorial sense (e.g., the mainstream casino linking to the live dealer specialist for live casino content).
Backlink Consolidation: we audited the combined backlink profiles, identified instances where link building had targeted the wrong brand, and executed a link redirect campaign to ensure each backlink pointed to the most relevant brand.
Technical Optimization: we fixed Core Web Vitals across all sites (average LCP improved from 3.8s to 1.6s), implemented proper hreflang tags, fixed canonicalization issues, and optimized crawl efficiency. Results at 12 months: combined organic traffic grew from 180K to 495K monthly sessions, keyword cannibalization incidents dropped from 340 to 12, the portfolio now holds 220+ page-one rankings (up from 85), organic registrations increased 175%, and each brand has a distinct, defensible topical authority position in search.
Assigned every target keyword to a single owning brand based on topical relevance, eliminating cannibalization across all 5 casino properties.
Audited 8,000+ pages and actioned 3,000+ for pruning — redirecting, consolidating, updating, or removing low-value content to concentrate authority.
Redesigned internal linking with hub-and-spoke structures within each brand and strategic cross-brand links to reinforce topical authority lanes.
Fixed Core Web Vitals across all sites, resolved canonicalization issues, implemented hreflang tags, and optimized crawl budget allocation.
“Having 5 brands competing against each other in Google was the most expensive SEO mistake we didn't know we were making. The portfolio strategy — mapping keyword ownership, pruning 3,000 pages, and redesigning the link architecture — took us from 180K to 495K monthly sessions. Each brand now has a clear lane and we've stopped cannibalizing ourselves.”
DiamondBet Casino operated 5 casino brands under one umbrella but their SEO efforts were cannibalizing each other — all 5 sites competed for the same keywords with duplicate content. We designed a portfolio SEO strategy that gave each brand distinct keyword territories, consolidated link equity through strategic cross-linking, pruned 3,000+ thin pages, and implemented a shared content team that produced unique authority content for each brand.
