Search engines publish the rules their results are built on. Google's are collected as Google Search Essentials, and Bing publishes the Bing Webmaster Guidelines. They cover broadly the same ground: what a page needs to be shown at all, what behaviour counts as spam, and what good practice looks like. Anyone doing SEO, or paying someone to do it, should know these rules, because breaking them can cost far more than any short-term gain.

The three parts of Google Search Essentials

1. Technical requirements

These are the minimum for a page to be eligible to appear at all:

  • Googlebot isn't blocked. The page must be accessible to Google's crawler: not disallowed in robots.txt, not behind a login, and not blocked by a firewall or bot protection that treats Googlebot as an attacker.
  • The page works. It returns an HTTP 200 (success) status code. Error pages (404, 5xx) aren't indexed.
  • The page has indexable content. The main content is in a format Google can process (text in HTML is ideal; Google also handles many file types such as PDFs) and doesn't violate the spam policies.

Meeting the technical requirements doesn't guarantee indexing or ranking; it just makes a page eligible.

2. Spam policies

These describe practices that can cause pages, or whole sites, to rank lower or be removed from results. They're covered in detail below.

3. Key best practices

Google lists a handful of things that most help a site do well:

  • Create helpful, reliable, people-first content.
  • Use the words people would search for in prominent places such as titles, main headings, alt text and link text.
  • Make links crawlable so Google can find other pages on the site.
  • Tell people about your site: be active in the communities where your audience is.
  • Follow good practice for other content types (images, video, structured data, JavaScript) where you use them.
  • Help Google understand any special features such as rich results, and control how content appears if needed.

The spam policies in plain language

Google's spam policies are worth reading in full; here are the ones that most often affect ordinary businesses.

Cloaking: showing search engines different content from what users see, for example serving a keyword-rich page to Googlebot and a sales page to visitors.

Doorway abuse: creating many pages or sites designed to rank for specific, similar queries that funnel users to one destination or offer little unique value. The classic example is hundreds of near-identical "plumber in [suburb]" pages where only the suburb name changes. Genuine location pages with real, specific information (staff, address, projects, local service details) are not doorways; the test is whether each page has substantial unique value.

Expired domain abuse: buying an expired domain with a good history and using it to host low-value content that trades on its old reputation.

Hacked content and malware: content placed on a site without permission. This isn't the site owner's intent, but a hacked site can be demoted until cleaned, so security matters for SEO.

Hidden text and links: text or links hidden from users (white text on white, text behind images, tiny fonts) placed mainly to manipulate rankings. Accordions and tabs used for genuine design reasons are fine.

Keyword stuffing: unnaturally filling a page with keywords or numbers, such as long lists of suburbs or repeating a phrase until the text reads badly.

Link spam: links intended to manipulate rankings, including buying or selling links that pass ranking credit, excessive link exchanges, large-scale guest posting with keyword-rich anchors, automated programs that create links, and requiring links as part of terms of service. Paid links and sponsored placements are allowed if they're marked with rel="sponsored" or rel="nofollow" so they don't pass credit.

Machine-generated traffic: sending automated queries to Google or scraping its results in violation of its terms.

Scaled content abuse: generating many pages mainly to manipulate rankings rather than help people, however it's produced. Google is explicit that this applies whether the content comes from people, automation, AI tools or a combination. Stitching together content from other sources without adding value also falls here.

Scraping: republishing content from other sites without adding original value.

Site reputation abuse: a site publishing third-party pages with little oversight to exploit the host site's ranking signals, for example coupon or payday-loan pages appearing on a respected news site.

Sneaky redirects: sending users to a different page from the one shown to search engines, or different content to mobile and desktop users with intent to deceive.

Thin affiliation: affiliate pages copying product descriptions and reviews from the merchant without adding anything.

User-generated spam: spam left in comments, forums or profiles on a site. Moderation and marking user links with rel="ugc" help.

How violations are handled

Search engines deal with spam in two main ways:

  • Automated systems. Google's spam-fighting systems (it has named one SpamBrain) detect and demote or ignore spam automatically. You may only notice a drop in traffic, often around a spam update Google announces on its Search Status Dashboard. Many manipulative links are simply ignored rather than penalised.
  • Manual actions. A human reviewer at Google can apply a manual action to specific pages or a whole site. It appears in Search Console's Manual actions report with the reason. Once you've fixed the problem, you submit a reconsideration request explaining what you did. Reviews can take days or weeks.

Bing's guidelines list similar prohibited behaviour and similar consequences, including removal from its index.

Legal rules sit alongside search rules

Search engine policies aren't the only rules. In Australia, the Australian Consumer Law prohibits misleading or deceptive conduct, which the ACCC applies to fake reviews, hidden paid endorsements and misleading claims online. The UK's Digital Markets, Competition and Consumers Act 2024 bans fake reviews, and the US FTC has a rule against fake reviews and testimonials. A tactic can breach both search policies and consumer law, such as posting fake reviews to boost a local listing.

Why shortcuts usually cost more

Some providers still sell rankings through bulk link packages, private blog networks, mass-produced location pages or "guaranteed page one in 30 days". These can produce a short spike, followed by a demotion, a manual action or simply wasted money as the links are ignored. Recovery means removing the bad pages or links, documenting the clean-up and waiting, often for months. For a business that relies on search for leads, that downtime can be very expensive.

A useful test: if you would be uncomfortable explaining a tactic to a search engine employee, or to a customer, don't use it.

A worked example: spotting risk in a proposal

A Gold Coast tourism operator receives a cheap SEO proposal promising "200 high-authority backlinks per month", "500 location pages for every suburb in Queensland" and "guaranteed top three in 60 days". Mapped against the spam policies:

  • Buying hundreds of links to pass ranking credit is link spam.
  • Hundreds of near-identical suburb pages are doorway abuse and likely scaled content abuse.
  • Guaranteed rankings are a red flag Google itself warns about.

A better proposal for the same budget might fix the site's technical issues, build a handful of genuinely useful pages (tour comparisons, seasonal guides, accessibility information), improve the Google Business Profile and earn coverage from local tourism bodies and travel writers. Slower, but durable.

Staying up to date

Policies change. Google updated its spam policies in 2024 to add expired domain abuse, scaled content abuse and site reputation abuse, and periodically announces spam updates. Practical habits:

  • Read the Google Search Central blog and check the Search Status Dashboard when traffic moves suddenly.
  • Check Search Console's Manual actions and Security issues reports as part of monthly reporting.
  • Review any third-party content, sponsored posts or affiliate sections on the site at least yearly, and mark paid links correctly.

Key takeaways

  • Search Essentials = technical requirements + spam policies + key best practices.
  • Technical minimum: not blocked, returns 200, has indexable content.
  • Common spam: cloaking, doorways, keyword stuffing, link spam, scaled content abuse, site reputation abuse, hidden text, sneaky redirects.
  • Paid links are allowed only if marked sponsored or nofollow.
  • Violations are handled by automated systems (no notice) or manual actions (reported in Search Console, fixed via reconsideration).
  • Consumer law, such as the Australian Consumer Law, also applies to tactics like fake reviews.