Google Site Diversity Update (4 June 2019): What Changed and What to Do

The Google site diversity update was a change, announced on 6 June 2019, that limits how many organic listings one site usually gets in the top results to two per query. It began rolling out about two days earlier, around 4 June 2019, and was fully live when Google announced it. It caps duplicate listings rather than demoting sites, so if you lost a third or fourth listing for a query, there is nothing to repair.

It sits in my full list of Google algorithm updates, next to the core update that landed the same week.

What the site diversity update changed

Before June 2019, it was common to see one domain take three, four or more of the first-page organic listings for a query. That was frustrating for searchers who wanted a range of sources. Google’s change addressed it directly: “you usually won’t see more than two listings from the same site in our top results.”

The important details:

• It is a cap, usually at two. Most queries show no more than two listings from one site in the top results.
• It is not absolute. Google may still show more than two results from one site when its systems decide that is especially relevant to the query. Searches for a specific brand or website are the obvious case.
• It applies to the core web listings only. Features such as Top Stories and carousels are not covered by the cap.
• Subdomains usually count as the same site. Google generally treats subdomains as part of the root domain for this purpose, though it may treat some as separate sites where that makes sense.
• It is not really a ranking change. Google described it as separate from the June 2019 core update and not a change to how pages are ranked. Your best page keeps its position; your extra pages are what get filtered out.

Timeline

Who was affected

The effect was small for most sites. Moz and other trackers reported that the overall impact was fairly minor. The sites that noticed it were the ones that had previously held several top listings for the same query. This was often on branded or navigational queries, and on large sites with many similar pages, such as directories, marketplaces, forums and big publishers with several articles on the same subject.

For a small business site, the most likely effect was on long-tail queries where two or three similar service or blog pages used to appear together. One of them stayed; the others dropped off page one.

How to tell if the site diversity update hit your site

Because the core update landed the same week, the main task is telling the two apart. The pattern for the diversity change is distinctive.

1. Look at clicks per query, not per page. Using an archived Search Console or analytics export, list queries that sent traffic in late May 2019 and count how many of your landing pages appeared for each.
2. Compare with mid-June 2019. If your top-ranking page for a query held its position but the second, third or fourth pages stopped getting impressions, that is the diversity cap.
3. Check total clicks for those queries. Often the total barely changes, because most clicks went to the top listing anyway. If the total dropped sharply and your best page also lost position, that is more likely the core update.
4. Look for subdomain effects. If you ran a blog or help centre on a subdomain and it used to rank alongside your main site, check whether one of them dropped out. That fits Google grouping subdomains with the root domain.

If you are checking this pattern on current data, the same method works in Search Console today: filter by query, then open the Pages tab to see how many URLs earn impressions for it.

How to recover from the site diversity update

Strictly speaking, there is nothing to recover. No fix is needed, because the change limits duplicate listings rather than demoting your pages. What you can do is make sure your site is set up to win more queries rather than more slots on one query.

1. Give each page its own job. If three of your pages all target “accountant in Karachi”, they compete with each other and only two can show anyway. Merge them into one strong page, or rework them so each answers a clearly different query.
2. Expand sideways, not deeper. Target related questions and sub-topics with distinct, well-differentiated pages. More unique queries won is worth more than a third listing on one.
3. Do not split content onto subdomains to dodge the cap. Google generally groups subdomains with the root domain, so this rarely works and makes your site harder to manage.
4. Aim for SERP features as well. The cap applies to standard web listings, not to features such as Top Stories or carousels, so eligible content can still appear there.
5. Fix internal cannibalisation. Make clear which page is the main one for a topic through internal links and titles. My on-page optimisation services include this kind of clean-up.

Is it still relevant today?

Yes. The two-listing limit is still how Google generally handles results, and you will see its effect on almost any search. It is one reason keyword cannibalisation hurts more than many site owners expect: building several pages for the same query does not buy you more space on page one.

For local businesses, the practical lesson is to build one strong page per service and one per area you genuinely serve, rather than many thin variations. That is how I approach site structure in local SEO work.

Frequently asked questions

Sources

• Search Engine Land: Google search update aims to show more diverse results
• Search Engine Land: Moz on the diversity update’s impact
• Keywords Everywhere: June 2019 updates

If you think several of your pages are competing for the same searches, an audit will show where to merge and where to expand. See my SEO audit services or request a free SEO audit.