Most ranking drops have boring explanations. A Google update. A slow page. A gap in your content. But every now and then someone contacts me convinced they’re being sabotaged. And sometimes they’re right.
Negative SEO is real. It happens. And while it gets overhyped as the boogeyman of the SEO world, understanding how a negative SEO attack works is worth your time, because some of it is harder to detect than you’d expect.
What actually is negative SEO?
Negative SEO is when someone deliberately tries to damage another site’s search rankings rather than improving their own. Instead of building a better site, they try to make yours look worse to Google.
The goal is usually to trigger an algorithmic or manual penalty against your site. Or to damage your reputation enough that even if you rank, people won’t click.
It falls under black hat SEO, violates every search engine’s guidelines, and some forms of it are illegal depending on where you’re based.
Does negative SEO actually work?
Here’s where it gets complicated. Google’s official position is that most negative SEO attacks don’t work. John Mueller has said repeatedly that Google is built to ignore bad links pointing at your site. Gary Illyes reportedly reviewed hundreds of suspected negative SEO cases and found that every affected site had other underlying issues driving the drop.
That said, the SEO community has spent years debating this. And the honest answer is: some attacks are easier for Google to ignore than others. A sudden flood of 10,000 spam links from random gambling sites? Google probably ignores that. A coordinated effort to scrape your content, file fake DMCA notices, and tank your reviews at the same time? That’s harder to dismiss.
Rather than arguing about whether it works, the smarter question is: what can you do to protect yourself regardless?
The 8 most common types of negative SEO attacks
1. Spammy link building
The most common form. Someone points a mass of toxic backlinks at your domain — think adult content sites, foreign-language gambling pages, link farms — hoping Google will penalize you for an unnatural link profile.
In reality, Google handles this better than it used to, particularly since Penguin 4.0 went live in 2016. But in extreme cases, or if your site already has other issues, it can still create problems. Monitor your backlink profile and only use Google’s disavow tool if you receive an actual manual action notice. Using it unnecessarily can cause more harm than good.
2. Content scraping
Someone copies your content, often using automated scrapers, and publishes it across other sites. When Google encounters duplicate content, it picks one version to index. If the scraper’s version gets indexed first — which can happen when they publish fast on an authoritative domain — your original may get displaced.
A few defences: implement canonical tags correctly, build strong internal linking so your pages are clearly the source, and monitor for copies using a plagiarism service like Copyscape. If you find scraped content, contact the site owner first. If that fails, file a DMCA notice through Google’s copyright removal request process.
3. Site hacking
The most damaging attack on this list, and unambiguously illegal in most jurisdictions. A compromised site can have malicious code injected, your URLs redirected to spam pages, or your content defaced entirely. Google has removed sites with active malware from its results completely.
Good security hygiene prevents most of it: keep your CMS and plugins updated, use a web application firewall, enable Google Search Console security alerts, and scan regularly with security software.
4. Review bombing
Fake negative reviews posted in volume, usually to your Google Business Profile but sometimes to Yelp, Trustpilot, or industry directories. For local businesses especially, this matters. Google Maps rankings factor in rating quality and volume, and top local pack results consistently carry high average scores.
Google has automated spam detection, but it misses some. When you notice a spike of reviews from accounts with no history, report each one individually via your Google Business Profile dashboard. Responding to all reviews, including suspicious ones, signals to real users that you’re paying attention.
5. Fake link removal requests
Someone contacts sites that link to you, pretending to act on your behalf, and asks them to remove the links. It doesn’t happen often, but when a webmaster takes the request at face value you lose a potentially valuable backlink with no obvious reason.
Not much you can do proactively. Monitor your lost backlinks and if a valuable link disappears unexpectedly, reach out to the referring site directly and explain what happened.
6. Smear campaigns and DMCA abuse
This covers spreading false information about your business, creating fake social profiles for impersonation, and filing baseless copyright complaints to get your content removed. The SEO damage is indirect but real. If your brand associations worsen, Google’s quality signals may reflect that over time.
Set up Google Alerts for your business name. Respond to formal complaints promptly. Monitoring brand mentions means you catch problems early, before they compound.
7. Fake bot traffic
Sending large volumes of low-quality bot traffic to your site can distort your user signals: bounce rate, dwell time, engagement. If Google weighs these signals in any meaningful way, artificially bad signals could hurt you.
This one is genuinely hard to defend against proactively. The main options are blocking known bot sources via your server or CDN, filtering bot traffic in Google Analytics, and reporting abuse to your hosting provider.
8. “Snitch SEO”
Some competitors will report your link building activity to Google, particularly if you’ve built any grey-area links. Since most active link building technically touches Google’s guidelines in some interpretation, there’s usually something to report.
The defence is the same as it’s always been: build white hat links, earn genuine editorial mentions, and keep your profile clean enough that there’s nothing worth reporting.
A practical negative SEO defence checklist
You probably won’t get hit by a negative SEO attack. Most sites never are. But these monitoring habits are worth building regardless. They’ll help you catch algorithm penalties, manual actions, and normal ranking drops faster too.
What I’d have in place:
- Monitor your backlinks regularly. Track your link profile and look for sudden spikes in referring domains, especially from unrelated or low-quality sources.
- Track your rankings. If something drops, you want to know within days, not weeks. Set up position tracking alerts.
- Set up uptime monitoring. A hacked site often shows up as downtime first.
- Keep your CMS and plugins updated. Most successful hacks exploit known vulnerabilities in outdated software.
- Monitor lost backlinks. If a valuable link disappears unexpectedly, investigate why.
- Check for scraped content. Search a few of your unique phrases in quotes to see if they’ve appeared elsewhere.
- Respond to all reviews, including suspicious ones.
- Enable Google Search Console security alerts. These flag malware, manual actions, and hacked content.
One thing worth saying clearly about the disavow tool: if you find a flood of toxic backlinks, don’t reach for it immediately. Google’s consistent guidance has been to use it only when you’ve received an actual manual action, and carefully. Using it incorrectly can cause more damage than the original links.
If you want a starting point for backlink monitoring, Google Search Console’s links report is free and catches the most obvious issues. For anything more involved, Ahrefs or a manual audit will give you a clearer picture.