How does conditional cloaking work?

Malware checks the HTTP User-Agent and Referer header. If the visitor is a Google crawler or referred from a search engine, it displays spam; otherwise it shows your regular site.

Can plugins or themes cause this?

Over 95% of SEO spam infections stem from abandoned CMS plugins, null themes, or unpatched file upload vulnerabilities.

SEARCH ENGINE DEFENSE

SEO Spam, Cloaking & Backdoor Detector

Detect hidden casino/pharma scripts and conditional cloaking destroying your Google ranking.

Overview & Threat Landscape

Stealthy website infections utilize cloaking: they serve clean content to website administrators, but inject hundreds of spam links and predatory keywords whenever Googlebot or mobile visitors arrive.

Business Consequences of SEO Spam

Google Blacklisting

Google Search Console issues immediate manual actions or removes your domain from indexation entirely.

Invisible Infections

Standard checks fail because malware detects developer user agents and conceals its malicious payload.

Brand Reputation Collapse

Prospective customers searching for your corporate name see Chinese or casino spam meta descriptions.

Immediate Containment Steps

Request an urgent forensic server audit to isolate modified core files, injected cronjobs, and rogue database entries.