Black hat SEO is any tactic that tries to rank a page by breaking search engine guidelines rather than earning the position. Keyword stuffing, bought links, cloaking, hidden text, private blog networks. They can work for a while. When they stop working, they usually take the site down.
The tactics that still circulate
- Paid links. Buying links that pass PageRank, whether from a marketplace, a guest post service or a network of sites owned by one person.
- Cloaking. Showing search engines different content than visitors get, usually by checking the user agent or IP address.
- Hidden text. White text on white backgrounds, copy pushed off screen with CSS, keywords crammed into alt attributes nobody reads.
- Scraped and spun content. Taking someone else’s pages and rewording them with a tool, at scale.
- Sneaky redirects. Sending mobile visitors or referral traffic somewhere other than the page that ranked.
- Expired domain abuse. Buying a domain for its backlink profile and repointing it to unrelated content.
What happens when you get caught
Two things can happen. They aren’t the same. An algorithmic demotion is automatic. Google’s systems stop trusting the signals you manufactured and your rankings fall. No notification and no appeal. You fix the cause and wait for a recrawl.
A manual action is a human reviewer deciding your site breaks the spam policies. You get a message in Search Console naming the problem. Pages or the whole site can be removed from results. Getting back means cleaning up properly and filing a reconsideration request, which takes weeks and often fails the first time because the cleanup was half done.
Grey areas worth naming
Not everything sits neatly in one camp. Being sent a product, reviewing it and linking to it is normal. Paying a blogger a flat fee for a followed link in a post they would never otherwise have written is a link scheme. The test Google applies is intent. Was the link given because the content earned it, or because money changed hands for the link itself?
The same logic covers AI-written content. Google judges the output, not the tool. Publishing 400 thin pages generated overnight is spam whether a person or a model wrote them. Using a model to draft something a specialist then edits and fact-checks is not.
Why the maths does not work
People buy links because the honest alternative feels slow. The problem is what it costs when it unwinds. A site that loses 60% of its organic traffic in a core update does not bounce back in a month. Disavowing links, stripping out content and rebuilding trust takes two or three quarters at best, and the revenue is gone the whole time.
If you inherited a site and aren’t sure what a previous agency did, start with the backlink profile and publishing history. We cover both as part of our SEO services, and knowing what is in there is usually the difference between a slow recovery and a stalled one.
Common questions
Is black hat SEO illegal?
No. It breaks search engine guidelines, not the law. Google is a private company applying its own rules to its own index, so the consequence is lost visibility rather than a court case. Tactics that cross into hacking or fraud are a separate matter entirely.
Can a competitor get my site penalised with bad links?
It is very hard. Google ignores most low-quality links rather than counting them against you. If you see a sudden flood of obvious spam links, you can list them in the disavow tool, but for most sites it is not worth the time.
How long does recovery take?
For a manual action, it can take weeks to months after you genuinely fix the problem. For an algorithmic demotion, often until the next update runs, which can be several months away. Neither is quick, and neither is guaranteed.
What counts as white hat then?
Building pages that answer what people actually search for, making them fast and crawlable, and earning links because something you published was worth citing. Less exciting to read about, but it compounds.
See our glossary entry for black hat SEO.

