Google’s September 2026 Spam Update: What Dental Practices Should Check

Google started rolling out the September 2026 spam update on 24 September 2026 at 9:15am US Pacific time, which was the early hours of Friday 25 September in eastern Australia. Google says it applies globally and in every language, and that the rollout may take up to two weeks, so Australian dental websites are in scope and the full effect may not be visible until early October.

Most practices won’t notice anything. But a spam update is the moment that a handful of common dental marketing shortcuts, like copy-and-paste suburb pages and bought link packages, stop working. If your practice has used any of them, this is a good week to find out, calmly, before the dust settles.

What Google actually announced (and what it didn’t)

The entire official announcement is one line on the Google Search Status Dashboard: the update was released, it applies globally and to all languages, and the rollout may take up to two weeks. That is all.

Google has not said whether this update is about links, content, doorway pages or something else. SEO commentators are already predicting what it is “really” about. Treat those as educated guesses until Google says more or the data shows a clear pattern.

For context, the same dashboard lists spam updates in March, June and August 2026, so this is the fourth this year. They’ve become routine rather than rare, which is another reason not to panic about any single one.

What a spam update does, in Google’s own terms

Google’s spam updates documentation describes them as notable improvements to its automated spam detection systems, which include a system called SpamBrain. The update does not add new rules. It gets better at spotting sites that break the rules Google already publishes in its spam policies.

Two points in that documentation matter most for a practice owner:

• Recovery is slow. Google says a site that fixes its problems may improve once its automated systems learn, over a period of months, that the site now complies. It is not a switch that flips back the next day.
• Lost link value stays lost. When Google’s systems neutralise spammy links, any ranking benefit those links were giving you is gone and cannot be regained. Removing the links will not bring it back.

It’s also worth separating an algorithmic update from a manual action. A manual action is a human reviewer at Google deciding a site breaks the policies, and you are told about it in Search Console. An algorithmic update like this one sends no notification at all. If your rankings move, the only place you’ll see it is your own data.

Keep it in proportion

A practice with a genuine website, real service pages and no bought links has very little to worry about here. Spam updates are aimed at manipulation, not at small sites that simply have not done much SEO.

Where dental websites tend to be exposed

Most of Google’s spam policies, like cloaking or hacked content, have nothing to do with a dental practice. These three are the ones we see on dental sites.

Templated suburb and service pages

Google’s policy on doorway abuse covers sets of similar pages built to rank for slightly different searches rather than to help the person who lands on them. The classic dental example is dozens of “Dentist in [Suburb]” pages that are the same text with the suburb name swapped, often for suburbs the practice doesn’t realistically draw patients from. Location pages aren’t the problem; location pages with nothing specific to say are. Our local SEO for dentists page explains how we approach local visibility without them.

Bulk-produced blog content

Scaled content abuse is Google’s term for publishing large volumes of low-value pages mainly to rank, however they were produced. A practice blog with a hundred near-identical posts on “benefits of teeth whitening” written by a tool in an afternoon fits that description. A smaller blog with posts that answer real patient questions does not.

Purchased link packages

Google’s link spam policy covers buying links and using automated services to create them. Many dental practices have bought “backlink packages” without knowing what was in them, often from unrelated overseas sites with exact-match anchor text like “best dentist Sydney”. Those links are exactly what Google’s systems are built to discount.

What to do this week

1. Don’t change anything in a hurry. The rollout is still running. Rankings often wobble during an update, and pages rewritten mid-rollout make it impossible to tell what caused what.
2. Check the Manual actions report in Search Console. It should say no issues detected. If it lists one, that’s a separate and more serious problem than the update, and it comes with a reconsideration process.
3. Wait for the dashboard to show the rollout as complete, then compare the two weeks before 24 September with the two weeks after it finished. Look at clicks and impressions by page, not only the sitewide total.
4. Group the results by page type. If your treatment pages held steady but your fifty suburb pages lost their impressions, the pattern is telling you something specific. Our technical health checks for dental websites walk through how to pull that page-level view.
5. Ask whoever built your links for the full list. Domains, anchor text and dates. If they can’t or won’t produce it, that’s an answer in itself.
6. Audit your location and blog pages honestly. For each one, ask whether a patient in that suburb, or with that question, would find something they couldn’t get from the page next to it. Pages that fail that test are better merged, rewritten or retired than left as they are.

AHPRA watch-out

When you rewrite thin pages, do not fill them out with patient stories or review quotes about treatment outcomes. Testimonials about clinical care are not permitted in health advertising under the National Law, and that applies to your website as much as to an ad. Add substance through local detail, the services you actually offer there and practical patient information instead.

If your traffic did drop

First, confirm the drop lines up with the rollout window and isn’t a seasonal dip or a website problem. An accidental noindex looks exactly like a penalty in the charts.

If it does line up, the fix is the same work described above, done properly: fewer and better location pages, a blog that answers real questions, and links earned from places that genuinely relate to your practice, such as local business groups, suppliers, associations and community organisations. There is no reconsideration request for an algorithmic update, and Google is clear that improvement can take months. Our guide to dental marketing in Australia covers how that kind of durable visibility fits with the rest of your marketing.

If you’re unsure whether your agency’s past work puts you at risk, our notes on choosing a dental marketing agency list the red flags worth checking against what’s on your site now.

The short version

• Google began rolling out the September 2026 spam update on 24 September, and it may take up to two weeks.
• Google has not said what it targets, so treat any specific claims as speculation.
• Most dental practices will see no change. Templated suburb pages, bulk blog content and bought links are where the risk sits.
• Wait for the rollout to finish, then compare page-level Search Console data before and after.
• Fix the pages rather than waiting for a reversal: recovery takes months and neutralised link value does not return.