2026 has already been one of the busiest years on record for Google algorithm activity. Within just the first few months, we have seen a Discover-specific core update, the fastest spam update in Google's history, and a broad core update that shook rankings across virtually every industry — ecommerce included.
If you have noticed traffic fluctuations or unexpected ranking changes on your store, this article breaks down what happened and what you should be doing about it.
February 2026: The First-Ever Google Discover Core Update
What Changed
On 5th February 2026, Google rolled out a core update that was focused exclusively on Google Discover, marking the first time the search giant had issued a Discover-specific algorithm change. Previous core updates had affected Discover as a side effect, but this was the first to target the feed directly.
The update introduced three key changes to how content ranks in Discover: a stronger emphasis on E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness), a new Visual Quality Score as a standalone ranking factor, and increased weighting for content freshness and local relevance.
What It Means for Ecommerce Brands
Discover may not be the first channel you think of for ecommerce, but it is worth paying attention to. For content-producing stores, those with active blogs covering buying guides, product trends, or industry news, 'discover' can account for a significant share of organic traffic.
The update's focus on visual quality is particularly relevant. Google now requires images to be at least 1,200 pixels wide (with 1,600 pixels at a 16:9 ratio recommended) to qualify for full Discover visibility. Sites using high-quality imagery saw meaningfully higher click-through rates as a result. If your blog posts are going out with small or low-resolution thumbnails, this is worth fixing.
The local content signal is also interesting for retailers with physical store locations. Google indicated that Discover would begin favouring locally or regionally relevant content, which could give multi-location retailers an edge if they create content tailored to specific areas.
March 2026: The Fastest Spam Update in Google's History
What Changed
On 24th March 2026, Google confirmed the rollout of its March 2026 spam update, and it completed in under 20 hours, making it the shortest confirmed spam update ever recorded on Google's Search Status Dashboard.
The previous spam update was in August 2025.
The update targeted manipulative tactics, including link schemes, keyword stuffing, cloaked content, and — notably — AI-generated spam produced at scale without human oversight. Google's SpamBrain system, which powers spam detection, had its detection capabilities widened to catch more of these patterns.
What It Means for Ecommerce Brands
Ecommerce stores are often incorrectly assumed to be safe from spam updates. They are not. The higher-risk areas for online retailers include thin category page copy, auto-generated buying guides with no real merchandising insight, duplicated manufacturer descriptions, and doorway-like faceted pages.
Stores with original product descriptions and genuine customer reviews were largely unaffected. Those relying on templated or copied manufacturer text saw visibility drops. If your product or category pages are still using default descriptions pulled directly from a supplier feed, this is a meaningful risk, not just for future updates, but for the competitive standing of your pages right now.
March–April 2026: The Broad Core Update
What Changed
Two days after the spam update completed, Google began rolling out its first broad core update of 2026, starting on 27th March. It finished on 8th April — a 12-day rollout that affected rankings globally across all content types.
The timing was deliberate. SEO analysts described the spam-then-core sequencing as "clearing the table" before recalibrating quality signals — removing low-quality automated content first, then running a deeper quality assessment across the web.
Over 55% of websites saw noticeable ranking changes. Sites producing original, expert-led content with clear authorship tended to gain visibility. AI content farms reportedly lost between 60 and 80% of their traffic. Ecommerce sites with original content — proprietary data, expert reviews, genuine customer insights — saw average visibility gains of around 22%.
What It Means for Ecommerce Brands
The March core update reinforced something Google has been moving towards for some time: brand sites that behave like genuine destinations are now in a stronger position than those that rely on commodity product copy.
For ecommerce specifically, a few things stand out. Product and category pages need to do more than target high-volume keywords. Brand clarity, trust signals, genuine buying guidance, and a strong user experience all matter. Pages that exist mainly to intercept demand and summarise what better sources already say are more exposed than they used to be.
E-E-A-T signals are no longer optional, and they now apply across all content types — not just health, finance, or legal topics. If your blog content lacks author credentials or your product pages offer nothing beyond a spec list, these are the areas to address.
The Growing Influence of AI Overviews on Shopping Queries
Separate from the named updates, a significant shift has been happening across Google Search more broadly.
By early 2026, AI Overviews were appearing on approximately 14% of all shopping queries, a 5.6x increase from November 2024, when the figure sat at around 2.1% for transactional searches.
For ecommerce brands, this changes the dynamics of organic visibility. Ranking well is no longer the same as getting traffic; AI Overviews can reduce click-through rates significantly on affected queries. However, brands that are cited within AI Overviews see notably higher organic and paid click volumes than those that are not.
The practical implication is that product data quality in Merchant Center feeds, structured data markup, and on-page schema has become a primary ranking signal in AI-mediated shopping results, arguably more so than traditional link-building or keyword optimisation.
What Ecommerce Brands Should Focus on Now
Taken together, the updates of early 2026 point in a consistent direction. Here is where to focus your attention:
Content quality over volume. Thin, templated, or AI-generated content without editorial oversight is being systematically deprioritised. Original buying guides, expert product reviews, and content grounded in real operational knowledge are what Google is rewarding.
Technical performance. Core Web Vitals are now a more significant ranking signal. Google's 2026 targets are LCP (Largest Contentful Paint) under 2.5 seconds, INP (Interaction to Next Paint) under 200 milliseconds, and CLS under 0.1. Sites missing these benchmarks are being disadvantaged, particularly on image-heavy product and category pages.
Product data completeness. With AI Overviews increasingly shaping shopping results, the completeness and accuracy of your Merchant Centre feed matter more than ever. Comprehensive attributes, high-quality imagery, and accurate schema markup all feed into how — and whether — your products appear in AI-generated shopping results.
E-E-A-T across the board. Add author credentials to your blog content. Back up product recommendations with genuine expertise. Build trust signals into your site structure, including clear return policies, verified reviews, and transparent business information.
With another broad core update likely before the end of Q3 2026, now is a good time to address the fundamentals rather than wait to react.
