SEO recap: May 2026

A summary of what actually happened in search during this period, ranked by likely impact on a single site rather than by publication time. Built from our own archive of 523 stories.

37 Stories archived
1 High impact
2 Update-flagged
11 Technical areas

Biggest stories

Ranked by estimated impact on a single site, not by publication time.

High impact Sistrix

May 2026 Core Update: Visibility Analysis and Data Updates

The May 2026 Core Update was announced on 21st May 2026, following the March Core Update. It was completed on the 2nd June. Data, analysis, examples and rankings for affected domains are shown below…

Ranking & Algorithms

Medium Onely

Top 10 Best B2B SEO Agencies in 2026

Your organic traffic from high-intent keywords has flatlined. Product and solution pages don’t appear when prospects ask ChatGPT or Perplexity […]

AI Search & Visibility

Medium Bing Search Blog

A Smarter Way to Explore Images Has Come to Bing

Today, we’re introducing an evolution of Bing Image Search– a unique AI-guided experience that organizes results to reduce the feeling of being overwhelmed, making it easier to find what you’re…

SERP Features

Medium Sistrix

Ocado vs M&S – Food fight!

Marks and Spencer, UK fashion and food chain, are beating their business partner Ocado at creating search visibility for the same food products. M&S aren’t selling those products but it feels like…

Ranking & Algorithms

Medium Lumar

Creating “Chain of Evidence” (CoE) Content for GEO / AEO

Your content needs to build a case, not just make a claim AI retrieval systems don’t just reward semantic relevance—they reward structured relevance and logical reasoning pathways. Content that…

AI Search & Visibility

What the period was about

Busiest technical areas

  • Ranking & Algorithms 8
  • AI Search & Visibility 8
  • Crawling & Indexing 4
  • Measurement 2
  • Speed & Core Web Vitals 1
  • E-commerce 1
  • Site Architecture 1
  • Content & Quality 1

Most active sources

  • Google DeepMind 6
  • Onely 6
  • Lumar 4
  • Sistrix 4
  • Bing Search Blog 3
  • SearchPilot 3
  • Chrome Developers 2
  • Marie Haynes 2

About these recaps

Assembled from our own archive of 523 stories, which currently runs from 4 October 2023. Ranking is by the impact score described on the front page — an estimate of how much a story is likely to affect one website, not a measure of how much attention it got.

The archive only holds what it has seen. Periods before it started are empty rather than quiet, and it gets more complete every week it runs.