Common black hat techniques
- Link schemes: buying links, private blog networks, large-scale link swaps and automated link building.
- Scaled content abuse: mass-producing pages, by hand or with AI, mainly to rank rather than to help people.
- Scraped and spun content: copying other sites’ content, or rewriting it automatically.
- Keyword stuffing and hidden text: repeating keywords, or hiding them from visitors.
- Cloaking and sneaky redirects: showing search engines something different from what visitors see.
- Doorway pages: many near-identical pages made to rank for variations of a search.
- Site reputation abuse: publishing third-party content on a trusted site to exploit its rankings.
- Expired domain abuse: buying old domains to rank low-value content on their past reputation.
The risks
Google’s automated systems, such as SpamBrain, and its spam updates demote or ignore spammy pages and links, and serious cases get manual actions. Recovery means removing the problem and waiting for Google to reassess the site, which can take months. The traffic lost in the meantime usually costs far more than the shortcut ever brought in.
The opposite approach, following search engines’ guidelines, is called white hat SEO.
Black hat SEO example
A website buys 500 cheap links from a link seller and sees its rankings jump for two months. Then a Google update demotes the site, and traffic falls by more than half. The owner pays for a link audit, removes or disavows the links and waits months for a recovery. The links cost less than the lost sales did.
Warning signs that an SEO supplier uses black hat methods
- Guaranteed rankings or “page one in 30 days”.
- Large packages of links with no list of where they appear.
- Mass-produced content that nobody on your team would read.
- Secret methods the agency will not explain.
- Reports that show rankings but not visitors, enquiries or sales.
What to do instead
- Fix the technical basics so the site can be crawled and loads fast.
- Write pages that answer real questions better than the pages that rank now.
- Earn links with useful resources, original data and real relationships.
- Track results in Google Search Console.
Black hat SEO FAQs
How does Google find out?
Through automated systems and manual reviews. A site can be demoted without a notice, or receive a manual action in Search Console.
What is the opposite?
White hat SEO follows search engine guidelines. See also cloaking, keyword stuffing and private blog networks.