Digital Marketing

Search Engine Optimisation in 2026 has three distinct layers, and most agencies only operate in one of them. The content layer — keyword research, on-page copy, internal linking — is table stakes. The technical layer — Core Web Vitals, crawl architecture, structured data markup, log file analysis — is where most sites leave significant ranking potential unrealised. The authority layer — editorial backlink acquisition, digital PR, brand mention monitoring — is where long-term category dominance is built. NullStack operates across all three simultaneously. Our SEO audits begin with a raw Lighthouse and CrUX field data analysis, followed by a server log review to map how Googlebot is actually crawling the site versus how it should be. We implement schema markup at the component level for product, review, FAQ, and organisation entities — providing the structured signals that increase eligibility for rich results in Google Search. ORM work focuses on suppressing negative results through authoritative content placement and monitoring brand mentions across the web using automated Python-based alert systems.

A Google or Meta ad campaign is only as efficient as the measurement infrastructure beneath it. If the attribution model is broken, the algorithm optimises toward the wrong signals, and budget compounds into the wrong audience segments over time. NullStack's first action on any new paid campaign engagement is a measurement audit: verifying that Google Tag Manager is firing correctly, that Enhanced Conversions are populated with hashed first-party data, and that the Meta Pixel is supplemented by a server-side CAPI implementation that captures conversions iOS restrictions would otherwise obscure. Campaign structure follows a full-funnel architecture: awareness-stage video and display inventory at the top, retargeting and competitor conquest at the middle, and high-intent search and shopping at the bottom. Bid strategies are selected based on historical CPA data, not platform defaults. We report on actual business outcomes — revenue, qualified leads, cost per acquisition — not impressions and click-through rates.

Direct-to-consumer growth is a unit economics problem before it is a marketing problem. A brand that acquires customers at a CAC higher than its first-order contribution margin is not scaling — it is buying revenue. NullStack begins every D2C engagement with a cohort analysis: mapping the relationship between acquisition channel, average order value, repeat purchase rate, and 12-month LTV for existing customers. This analysis determines the maximum sustainable CAC per channel — the number that acquisition campaigns must be held to. Growth strategy then prioritises the channels with the highest LTV-to-CAC ratio, the funnel improvements with the greatest conversion leverage, and the retention mechanisms (email flows, loyalty programmes, post-purchase sequences) that extend customer lifetime. For a D2C health supplements brand, this methodology produced a 28 percent CAC reduction over two quarters while maintaining flat revenue — improving margin rather than just top-line growth.

The measurement layer is not a reporting afterthought — it is the foundation that determines whether every other marketing investment is allocated correctly. NullStack builds analytics infrastructure using Google Analytics 4 with custom event schemas designed around the client's specific conversion architecture, supplemented by server-side event logging for transactions that GA4's browser-based tracking misses. We build multi-touch attribution models in Python that credit revenue across the actual touchpoint sequence — not last-click — giving a realistic picture of which channels are generating pipeline versus which are simply capturing intent that was created elsewhere. Dashboards are delivered in Looker Studio with live BigQuery connections, designed to answer the specific business questions leadership reviews weekly: channel efficiency, funnel conversion rates, cohort LTV progression, and campaign ROAS by product category.

What Is Omnichannel Marketing, and Why Do Brands Struggle to Execute It?