This case study documents a nine-month engagement with a Singapore dental practice that lost more than half of its organic traffic in a Google core update. Dental websites sit in the category Google calls "Your Money or Your Life": health content that can affect a reader's wellbeing, held to a higher standard of trust. Clinics compete with hospital groups, large dental chains and government health portals. Singapore's healthcare advertising rules also limit testimonials and claims such as "best dentist", which narrows the trust signals a clinic can show on its own site.
Over two years the practice had grown to 4,820 organic visitors a month, mostly through 142 blog articles written by freelance writers, none of them with a dentist named. Within three weeks of a core update, traffic fell to 2,190 and page 1 keywords dropped from 87 to 31. Monthly appointment bookings from organic search fell from 39 to 22. There was no manual action in Search Console and nothing had changed on the site, so the clinic did not know what to fix.
We compared four weeks of Search Console data before and after the update, page by page and query by query. 82% of the lost clicks came from 46 articles answering treatment questions, such as wisdom tooth removal costs, root canal pain and braces for adults, plus two service pages. The homepage, clinic pages and brand searches were barely affected. We then studied the pages that had gained those positions. Almost all named a dental surgeon, showed qualifications and a review date, and answered the question in the first few lines.
A core update is not a penalty, and there is no single setting to switch back. Recovery starts with knowing which pages lost and what the winning pages have that yours do not. For a dental site, the gap was almost always trust: who wrote this, are they qualified, and is it current.
We created an author page for each of the six dentists with their qualifications, registration with the Singapore Dental Council, areas of interest and years in practice. Every article kept on the site was reviewed by one of them and shows "Reviewed by" with the dentist's name and the review date. Claims that Singapore's healthcare advertising rules do not allow were removed, and articles link to MOH and HealthHub guidance where relevant.
Google's quality guidelines ask who is responsible for health content and whether they are qualified to give it. Anonymous articles cannot answer that question. Named dentists with checkable credentials can, and this was the single change most closely tied to the pages that recovered.
We reviewed all 142 articles against traffic, links and overlap. 49 were merged into stronger guides on the same topic, 22 with no traffic, no links and no clinical value were removed, and the remaining 71 were rewritten to a dentist-reviewed standard. Every removed or merged URL was redirected to the closest remaining page.
Core updates judge a site as a whole as well as page by page. Dozens of short, overlapping articles told Google the site published volume rather than expertise. Fewer, stronger pages raised the quality of the site overall and stopped several articles competing for the same search.
The booking system was creating 1,140 parameter URLs that Google had indexed. We set canonicals and blocked the parameters from crawling. The two clinic location pages shared most of their text, so we rewrote them with each clinic's own directions, opening hours, dentists and photos, and added Dentist schema to each. Image compression and lazy loading brought mobile LCP from 4.1 to 2.3 seconds.
Technical problems were not what caused the drop, but they were wasting Google's crawl on booking URLs instead of the pages being improved. Clearing them meant the rewritten pages were recrawled and reassessed faster.
We rewrote nine treatment pages, from scaling and polishing to implants and clear aligners, with price ranges in S$, what happens at each visit, recovery time and whether MediSave or subsidies apply. Each page was reviewed by the treating dentist. We tracked rankings weekly through the next core update, which rolled out in month 6.
Recovery from a core update usually shows at the next core update, not the week after the fixes. Monitoring through that update showed which pages recovered and which still needed work, and the treatment pages caught most of the booking-intent searches once trust had been rebuilt.
Nothing was broken on this site. The update changed how Google judged content the clinic had published for two years.
142 articles about treatments, none written or reviewed by a named dentist. Pages from clinics and hospitals with named dental surgeons took their places. Adding dentist authors, credentials and review dates fixed this.
58 articles were under 300 words and many covered the same question. Merging and removing half the blog raised the quality of what remained and stopped pages competing with each other.
Most articles opened with general background before reaching the answer. Rewritten pages answer the question in the first two sentences, then explain, which is what the pages that gained had in common.
Rankings moved a little as fixes went live, but the big lift came when the next core update rolled out in month 6. Doing the work early meant it was in place before Google reassessed the site.
If your traffic dropped after a core update, find out which pages lost before changing anything. On this site, 46 articles accounted for 82% of the loss. Rewriting the whole site at random would have taken longer and missed what Google was actually judging.
Health content needs a named, qualified person behind it. If you run a dental or medical clinic in Singapore, have your dentists or doctors write or review your articles and show it on the page. Within the limits of the advertising rules, this is one of the clearest trust signals you can give.
Deleting and merging content can grow traffic. The clinic ended with half as many articles and 44% more traffic than its old peak. Keep the pages that serve patients well and fold the rest into them.
A core update changes how Google judges the quality and relevance of pages, so pages that ranked before can be replaced by ones it now rates higher. It is not a penalty and there is usually no single error to fix. Compare which pages and searches lost traffic, then study what the pages that took those positions do better.
Recovery usually shows at the next core update, which can be several months away. On this project the fixes were done by month 5 and the main lift came with the update in month 6. Some pages improve sooner, but most of the gain arrives when Google reassesses the whole site.
Yes. Dental content is health advice, and Google expects to see who is responsible for it and whether they are qualified. Show the dentist's name, qualifications and the review date on each article, and keep claims within Singapore's healthcare advertising rules.
Not automatically. Merge posts that overlap into one stronger page, update posts that still serve readers, and remove only pages with no traffic, no links and no useful content. Redirect every removed or merged URL to the closest remaining page.
Start with a free SEO audit of your clinic website. We find which pages and searches lost traffic, check your content against the trust standards Google applies to health sites, and review your technical set-up, then show you a realistic path back before you commit to anything.
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