An SEO glossary of terms every marketer should know in 2026
A practical, current glossary covering the essential SEO terminology every marketer should be comfortable with, from foundational concepts to 2026-specific terms.
6 min read
Negative SEO refers to deliberate attempts by a third party to damage a competitor's search rankings, typically through spammy link building pointed at the target site, content scraping, or fake review campaigns. Genuine attacks are less common than site owners often assume, but real, and worth knowing how to recognise.
How to distinguish a genuine attack from normal fluctuation
A genuine negative SEO attack usually shows a specific, identifiable pattern — a sudden spike in low-quality backlinks from clearly unrelated, spammy sites, often appearing in a short window. Normal ranking fluctuation, by contrast, rarely correlates with such a specific, sudden link pattern.
- A sudden spike in backlinks from clearly low-quality, unrelated, spammy sites.
- Content scraping and republishing your work at scale on other domains.
- Fake negative reviews appearing in a suspicious, coordinated pattern.
- In rarer, more aggressive cases, attempts to hack or otherwise directly compromise your site.
What genuinely helps as a defence
Google's systems are generally good at recognising and discounting clearly manipulative link spam automatically, without requiring action on your part — as covered in our Penguin update explainer. The disavow tool is available for cases where you have specific, strong evidence of a deliberate, harmful pattern.
Google's algorithms are the primary defence against most link-based negative SEO attacks — your own action is usually a secondary, supporting step, not the whole defence.
Practical monitoring and response steps
- Monitor your backlink profile regularly for sudden, unexplained spikes.
- Use Google Alerts or a content monitoring tool to catch scraped content republishing your work.
- Respond calmly and professionally to any suspicious review pattern, and report clearly fake reviews to the relevant platform.
- Only use the disavow tool for links you have strong, specific reason to believe are part of a deliberate attack, per our disavow tool guide.
When to escalate
If you suspect direct hacking or site compromise rather than purely link-based tactics, prioritise securing your site technically first — this is a security issue with SEO consequences, not primarily an SEO issue in itself.
Frequently asked questions
How common are genuine negative SEO attacks?
Less common than many site owners assume — most unexplained ranking drops trace back to algorithm updates, technical issues, or content quality changes rather than a deliberate competitor attack.
Can negative SEO actually succeed against a genuinely strong site?
Google's systems are generally resilient against link-based attacks specifically, making this a less effective tactic than it once was, though it is not entirely impossible in every case.
Should I report a suspected negative SEO attack to Google?
Google provides a spam report form, though it primarily uses these reports as one signal among many rather than guaranteeing individual investigation of every report.
If you suspect your site is under a negative SEO attack, contact our team for a diagnostic review.
The takeaway
Monitor your backlink profile for sudden, unexplained spikes in low-quality links — this is the clearest, most common early signal of a genuine negative SEO attack in progress.
Written by Fibvo — Bengaluru and Erode, India — working with clients in other time zones. Questions, or think we have it wrong? Tell us.
Keep reading
Related articles
A hybrid SEO strategy for a world with both blue links and AI answers
A practical framework for building one content strategy that serves both traditional search ranking and AI answer engine visibility simultaneously.
6 min readGoogle's Quality Rater Guidelines explained, in plain language
What the Quality Rater Guidelines actually are, how human raters use them, and the practical lessons worth extracting from this lengthy public document.
5 min readNext step
Tell us what you are trying to grow.
Send the problem in a paragraph. We will reply within one working day with an honest view of whether we can help, and what it is likely to cost.