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Case study - FullDent

How We Cleaned Up an 740,000-Page Hack and Rebuilt FullDent's SEO From the Ground Up
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Client Snapshot

  • Client: FullDent
  • Issue type: Technical SEO audit and security recovery
  • Engagement length: 6 months
  • Services: Technical audit, hack and spam cleanup, index management, technical rebuild, specialty content

On the surface, FullDent's site looked normal. Underneath, it had been quietly compromised: a hacker exploited a vulnerability to inject the site with a massive number of spam pages targeting completely unrelated search terms, gambling and casino keywords aimed at Chinese search traffic, none of it connected to FullDent's actual business.

Over 740,000 non-indexed spam pages existed on the site, and they were still being actively crawled by Google. Every crawl budget spent on that junk was time not spent discovering FullDent's real content, and the association with spam put the site at genuine risk of a manual penalty from Google, the kind of thing that can suppress or entirely remove a site from search results through no fault of the business itself.

The first priority was triage, not growth: confirming the scope of the compromise and checking Search Console for existing security flags. We worked through a structured cleanup, removing and noindexing the spam pages, working with the client's development team to patch the vulnerability, and submitting removal requests through Search Console to accelerate getting those pages out of the index.

With the site clean, we moved into a full technical SEO rebuild: proper architecture and internal linking, correct schema markup, mobile and speed optimization, and specialty-focused content built to reclaim the search real estate that had effectively been ceded to spam.

We worked through the cleanup in batches, monitored closely for any sign of re-infection since a patched vulnerability left unwatched can be exploited again, and tracked how quickly FullDent's legitimate pages climbed back into search results as the spam presence shrank.

Quick Guide: Is Your Practice Visible on Google?

Most practices lose new patients to Google before they even realize there's a problem. Run through this quick checklist:

  • You don't show up in the Google Maps 3-pack for your main procedures
  • Your Google Business Profile hasn't been updated in months
  • Most new patients still come from referrals, not search
  • You're not sure how your site compares to other practices in your city
Read more
OUR APPROACH

How We Fixed It

Spam Exploit Cleanup

Identified and removed the injected spam pages, then worked with the client's developers to patch the vulnerability.

Google Index Recovery 

Systematically noindexed and removed spam pages from Google's index, and rebuilt a clean sitemap.

Technical SEO Rebuild

Proper architecture, schema, and speed optimization, plus specialty content to reclaim the search real estate lost to spam.
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6 Months, Three Turning Points

  • Month 1-2: Scope of the hack confirmed, vulnerability patched, cleanup began.
  • Month 3-4: Spam page count falling fast, clean sitemap resubmitted, technical rebuild underway.
  • Month 5-6: Under 2,000 non-indexed pages remaining, first-page rankings for 25 B2B keywords.
RESULTS THAT MATTER

FullDent in Numbers

740,000+ → <2,000

Non-Indexed Spam Pages

25

Keywords Ranking First Page

6

Month Engagement

40%

Of New Patients Sourced Online
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