It has now been more than two months since the Google December 2025 Core Update finished rolling out, and roughly six months since the August 2025 Spam Update.

Yet since early January 2026, search rankings — particularly within iGaming — have shown persistent and unusually high volatility.

Around 12 February, turbulence spiked sharply. From 14 February onward, instability has remained elevated rather than settling back into normal day-to-day fluctuation.

This does not resemble routine SERP noise.

Tracking Tools Near Maximum Readings

Multiple rank-tracking platforms are reflecting the same pattern.

Semrush Sensor volatility scores have hovered near the top of the scale, recently reaching 9.4 out of 10 — a range typically associated with major algorithmic adjustments.

Similarly, Wincher’s volatility index shows extended periods categorized as “very high,” rather than isolated one-day spikes.

When independent tracking systems display synchronized turbulence over multiple weeks, it often signals system-level recalibration rather than random fluctuation.

A New Update — Confirmed or Not?

Historically, Google has rolled out significant algorithm changes before formally acknowledging them — and sometimes without confirming them at all.

Given the scale and duration of movement, several possibilities are being discussed:

  • A continued spam-focused iteration building on the August 2025 Spam Update
  • Refinements to the December 2025 core systems
  • Structural adjustments targeting authority signals

Within iGaming SEO, the debate centers on long-standing tactics:

  • Expired-domain networks
  • Parasite SEO leveraging high-authority third-party domains
  • Aggressive link acquisition models

The broader question remains: Is Google incrementally tightening enforcement rather than executing a single dramatic “clean-up”?

What the iGaming Data Shows

When analyzing larger affiliate brands as performance indicators, several patterns emerge:

  • Domains that appeared resilient during the December Core Update have experienced significant declines since January.
  • Estimated organic traffic drops of 50–75% are visible in multiple cases compared to 2025 peaks.
  • Parasite-style implementations have seen traffic reductions ranging from 30–75% in more aggressive setups.

Expired-domain projects, however, remain widely present in SERPs. This may reflect rapid operator adaptation rather than algorithmic endorsement.

SEO Debt and Authority Signals

Among heavily impacted sites, a common thread appears:

  • Heavy reliance on purchased links
  • Rented placements and PBN networks
  • Rapid, unnatural spikes in referring domains

Many such projects accumulated what could be described as “SEO debt” — tactics that worked at scale for years but now appear increasingly vulnerable.

By contrast, sites demonstrating steadier link-growth curves, stronger editorial signals, and more consistent brand development appear comparatively stable — at least for the moment.

English-Language SERPs Most Affected

The strongest turbulence appears concentrated in English-language search results. More localized markets have not yet shown the same systemic instability.

This could indicate that recalibrations are still unfolding and may expand geographically over time.

What Happens Next?

Because Google has not formally confirmed an update, forecasting remains speculative. However, sustained volatility at this level typically signals ongoing algorithmic adjustment.

iGaming, as a high-competition and high-monetization vertical, often reacts more dramatically to authority recalibrations than broader industries.

Whether labeled a core update, spam iteration, or structural refinement, something is clearly shifting beneath the surface.

And for now, parts of the iGaming affiliate ecosystem are feeling it first.