Definition
Negative SEO is the attempt to harm a competitor's search rankings through malicious activity aimed at their site: pointing large volumes of spammy or toxic links at it to try to trigger a link-based penalty, scraping and republishing its content to create duplication, fake or manipulative reviews, spammy forum and comment link injection using its brand, or hacking to insert content or redirects. It is deliberate sabotage rather than an SEO technique in the normal sense.
In practice, link-based negative SEO is largely ineffective against established sites because search engines are good at ignoring obviously manipulative inbound links rather than penalising the target for them. The forms that can do real damage are content theft that outranks the original, review manipulation, and security compromises.
In context
For iGaming affiliates, the niche's competitiveness and history of aggressive tactics mean negative SEO concerns come up, but the practical picture matters. A sudden influx of spammy inbound links is usually not something to panic about — Google generally discounts them — and a reflexive mass disavow "to be safe" can do more harm than the links by removing ones that were actually helping.
The response to a spam-link influx is to monitor, and only disavow domains that are both clearly manipulative and clearly part of a deliberate pattern, ideally alongside any manual action.
The forms worth active defence are content scraping (monitor for copies, file removal requests, ensure the original is well-indexed and canonical), review and reputation manipulation (monitor brand mentions and review platforms), and security (keep the site hardened, monitor for unexpected pages, redirects or outbound links, and watch server logs). For affiliate-facing content, the framing is that negative SEO is real but mostly overstated for links, that the effective defences are content protection, reputation monitoring and security rather than constant disavowing, and that the best insulation is a strong own-domain authority and a clean, genuinely earned link profile that a bit of injected spam cannot meaningfully move.
Worked example
An affiliate notices thousands of new spammy referring domains. Rather than mass-disavowing, it monitors rankings and Search Console, sees no manual action or ranking impact, and takes no link action.
Separately it finds a scraper site outranking one of its guides, files removal requests, strengthens the original's internal links, and the original recovers the position.
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