Google’s second core update was introduced on May 21st, two months after the March core update. This also follows the spam update in March and the discovery update in February.
The May core update took almost two weeks to complete, invoking high volatility to Search Engine Results Pages (SERPs) up till its completion on 2nd June. So what was this core update about? Here’s everything you need to know:
What Is a Google Core Update?
A Google core update is a major recalibration of Google’s search ranking algorithm. This is Google’s way of deciding who gets to be higher or lower in search results. There are usually three to five core updates a year, each designed to improve how Google evaluates content.
Unlike spam updates that target specific violations, core updates affect search rankings across all industries and websites. This means that even websites following SEO best practices may experience ranking fluctuations after an update is rolled out.
Google has repeatedly stated that core updates are not intended to penalise websites. Instead, they are designed to reward content that provides the most value to users. As a result, some pages may see increased visibility while others experience a decline in rankings.
What Changed in the May 2026 Core Update?
Google does not reveal the exact details of its core update. SEO professionals are usually left to interpret algorithm changes on their own. Here are some of the prominent changes that SEO experts and digital marketers recorded in May’s Google core update:
- Crackdown on AI Spam
AI content has flooded the internet since it was introduced in 2023. Google has since become much more aggressive in filtering out low-quality, mass produced AI content.
This time around is no different, as websites that rely on unedited AI-generated articles experienced a drop in rankings.
- Impact on Local SEO
Local SEO might have been impacted too. Some websites reported changes in their local directories or more specifically, “near me” queries. Google appeared to be refining how it evaluates local proximity signals.
This means that businesses with incomplete Google Business Profiles (GBP) may experience fluctuations in local search results.
- Broken Search Console Links
Although this is highly unrelated, the Google Search Console Links Report seems to have broken just as the core update was rolled out. Many SEO experts have reported seeing zero links in the report, while others were seeing huge drops in their link count.
While the issue has been resolved, experts think this was more of a glitch than a direct consequence of the core update.
Which Industries Are Usually Impacted After a Google Core Update?
Industries where trust and expertise matter most are usually hit the hardest. This includes financial services, healthcare, retail and legal sectors to name a few.
These areas fall under what Google considers “high-stakes” topics, where the accuracy of information can affect a person’s well-being.
With that said, SEO agencies that work across these industries often see more noticeable ranking volatility because even small content issues can lead to changes. In practice, this means SEO agencies need to place a stronger focus on content quality rather than just technical optimisation.
What Should You Do After a Google Core Update?
Ranking fluctuations are common immediately after a rollout. Some sites may see their traffic climb while others see a sudden drop. Regardless of your SEO best practices, it may take a week or two for rankings to stabilise completely.
Here’s what you should do after a Google core update
- Don’t Make Immediate Changes
Don’t rush to fix rankings as soon as you notice a drop. Rankings may continue to fluctuate several days after a rollout is complete.
Before making any major changes to your website, you should monitor your performance and allow rankings to settle.
- Review Your Content
Most updates revolve around improving Google’s content evaluation. This is designed to reward high-quality content that can actually help people. If your rankings have declined, review your pages and consider updating your content.
Updating and improving content is often more effective than publishing large amounts of new content.
- Focus on Experience, Expertise, Authoritativeness, and Trustworthiness (E-E-A-T)
When producing future content, remember to focus on E-E-A-T. This is Google’s guideline for producing high-quality content. While this is not a ranking signal per se, it strongly influences how Google assesses the usefulness of your content.
- Check Google Search Console
Google Search Console can help you better understand how a core update has affected your website. It allows you to compare performance data before and after the rollout so you can identify patterns.
Look out for pages that lost significant traffic, as these are usually the areas that need the most attention.
The Bottom Line
The May Google Core Update 2026 was another reminder that Google is constantly refining how it ranks content. As with previous updates in recent years, the main emphasis was on improving content quality in the age of AI-generated content.
This means content that is thin, repetitive, or heavily reliant on unedited AI outputs is less likely to perform well in search results.
For website owners and SEO teams, the focus is on creating content that adds genuine value for users who consume your content. Over time, this remains the most reliable way to maintain and grow visibility, regardless of future updates.
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