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SEO

Cobalt Health — Organic Search Programme

A technical rebuild plus an editorial programme that took a stalled B2B site from 4,300 to 61,000 monthly organic sessions.

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Cobalt Health — Cobalt Health — Organic Search Programme
ClientCobalt Health
IndustryHealth SaaS
RoleSearch partner
Duration9 months · Oct 2024 — Jun 2025
ServicesTechnical SEO · Content strategy · Digital PR · Internal linking
TechnologyScreaming Frog · Ahrefs · GSC · BigQuery · Looker Studio · Next.js

The client challenge

Cobalt published consistently for two years and grew nothing. A JavaScript-rendered site left 41% of pages effectively uncrawled, competing articles cannibalised each other, and none of the content was written for anyone with buying authority.

Research & Technical Audit

The audit explained why good content had never had a chance.

  • Crawl and log-file analysis across 2,800 URLs
  • 41% of content pages rendered client-side and rarely indexed
  • Keyword cannibalisation across 74 overlapping articles
  • Gap analysis against four competitors covering 2,100 commercial queries

Strategy

Fix the foundations, consolidate what exists, then publish against demand rather than opinion.

  • Server-render every indexable route and rationalise the URL structure
  • Consolidate 74 articles into 31 canonical pieces with redirects
  • 14 topic clusters mapped to buying stage and role
  • Original-data articles as the engine for the authority programme

Content & On-page

Every template was designed for the query it serves, not for a generic blog layout.

  • Pillar, comparison, glossary and tool templates with distinct schema
  • Programmatic internal linking driven by cluster relationships
  • FAQ, Article and SoftwareApplication structured data
  • Editorial standard requiring a named expert reviewer on clinical content

Technical Delivery

Implemented alongside Cobalt's engineers with search health monitored in CI.

  • Migration to server-rendered routes with correct canonicals and hreflang
  • Core Web Vitals brought to green across all templates
  • XML sitemap segmentation and crawl-budget control
  • BigQuery pipeline from Search Console for query-level reporting

Programme Output

Nine months of compounding work, still growing without additional spend.

  • 62 articles and 9 interactive tools published
  • 31 legacy pieces consolidated and redirected
  • 48 earned links from health and technology publications
Deliverables

What we shipped.

Everything handed over at the end of the engagement.

Technical remediation across 2,800 URLs
Topic architecture with 14 pillar clusters
62 commissioned articles and 9 tools
Authority programme and monthly reporting model
Results

Measured outcomes.

Reported by the client after launch.

+312%

Organic sessions

1,940

Keywords in the top 10

+248%

Organic demo requests

97

Lighthouse SEO score

Organic went from a rounding error to our largest source of qualified demos. The difference was diagnosis, not volume.
Samuel IyerVP Marketing, Cobalt Health
Gallery

Project gallery.

Selected screens and assets from the engagement.

Search performance over the programme
Search performance over the programme
Topic cluster architecture
Topic cluster architecture