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EXPERTISE

Search Forensics.

Diagnosing traffic loss, indexation failure and complex organic decline.

SEMANTIKOS investigates the search problems that do not have an obvious answer: sudden traffic loss, pages dropping out of the index, rankings that shift after an algorithm update or a release. The aim is to find the real cause, prove it with evidence and set out what to change.

Symptom and cause

A traffic drop is a symptom. The cause is usually somewhere else.

When organic traffic falls, the first explanation offered is often the wrong one. A core update gets the blame for a problem caused by a template change. A migration gets the blame for seasonal demand. A few lost rankings hide a broader indexation issue that has been building for months.

Acting on the wrong explanation costs time and can make matters worse. Content gets rewritten when the real issue was rendering, or links are disavowed when the problem was canonicalisation.

Search forensics at SEMANTIKOS separates what changed, when it changed and which pages it affected before anyone decides what to fix.

What the work covers

Search forensics and SEO recovery services

Traffic drop investigation

Segmenting the loss by page type, query group, device, country and date to find exactly where and when it happened.

Algorithm update analysis

Comparing the timing and pattern of a decline with known Google updates, and separating update effects from technical or seasonal causes.

Indexation diagnosis

Tracing why pages are excluded, deindexed or replaced by other URLs, using index coverage data, crawl evidence and server logs together.

Migration recovery

Auditing redirects, canonicals, internal links and sitemaps after a migration that lost traffic, and prioritising the fixes that recover the most value first.

Penalty and manual action analysis

Reviewing manual actions and spam-policy risks, identifying the pages and links involved, and preparing the remediation and reconsideration evidence.

Technical SEO auditing

A structured review of crawling, rendering, indexation and architecture when the cause of a decline is not yet known.

Competitive visibility analysis

Checking whether the loss reflects gains by specific competitors, SERP feature changes or AI answers taking clicks, rather than a problem on the site itself.

Recovery monitoring

Tracking crawl, index and ranking signals after fixes are released, so the business knows whether recovery is under way and when to escalate.

How an engagement runs

An investigation that follows the evidence.

  1. Timeline

    Building a precise timeline of the decline alongside releases, content changes, algorithm updates and seasonality.

  2. Segmentation

    Breaking the loss down until the affected pages, queries and markets are clear and the unaffected ones act as a control group.

  3. Hypothesis testing

    Testing each plausible cause against the evidence, and ruling causes out as deliberately as ruling them in.

  4. Findings and remediation

    A clear explanation of what happened and a prioritised set of fixes, written for both decision-makers and developers.

  5. Recovery tracking

    Monitoring the effect of each fix and adjusting the plan as search engines reprocess the site.

In practice

What a search forensics investigation can look like.

Real investigations remain confidential. This composite reflects a pattern that appears regularly on publishing sites.

Illustrative scenario

A news publisher that blames a core update

A publisher loses a large share of its organic traffic in the same week as a Google core update and assumes the update is responsible. Editorial teams begin rewriting older articles.

Segmenting the decline shows that evergreen guides are stable, while article pages published in the previous three months have fallen sharply. The release history shows a new article template going live four days before the update. On that template, the canonical tag points to a paginated version of each article and the publication date is missing from structured data.

Correcting the canonical and restoring the date markup is prioritised above any content changes. In a case like this, recent articles typically return to the index as they are recrawled, and the rewriting programme can be paused until the effect of the fix is clear.

This is a composite example based on patterns common to this kind of engagement. It does not describe a specific client.

Warning signs

When a forensic investigation makes sense.

  • Organic traffic fell sharply and the cause is disputed internally.
  • Rankings changed around an algorithm update and it is unclear whether the update is the reason.
  • Pages are dropping out of the index without an obvious explanation.
  • A migration or redesign lost traffic and the recovery has stalled.
  • A manual action or spam-policy warning has appeared in Search Console.
  • Previous fixes have been applied with no measurable effect.
Questions

Frequently asked questions

How quickly can the cause of a traffic drop be found?

Many causes can be identified within one to two weeks once data access is in place. Complex cases involving several overlapping changes take longer, because each one has to be separated and tested.

Can traffic lost to a Google update be recovered?

Often, but not always quickly. Recovery depends on whether the decline reflects a fixable issue on the site or a broader change in how Google evaluates that type of content. The investigation makes that distinction first.

What data is needed for an investigation?

Search Console access, analytics, a record of releases and content changes, and ideally server logs. The more precise the timeline of changes, the faster the cause can be isolated.

Does SEMANTIKOS handle manual actions?

Yes. That includes identifying the affected pages or links, planning the remediation and preparing the evidence for a reconsideration request.

Is this service available outside Australia?

Yes. SEMANTIKOS works remotely with clients in Sydney, Melbourne, across Australia and internationally.