Paid links are any links placed because the linking site received compensation. That includes direct payment, free products, services, discounts, or other value. Google has no objection to paid advertising. Its objection is to paid links that pass ranking credit, so the rule is that paid links must carry rel="sponsored" or rel="nofollow".
What counts as payment
Payment is broader than a wire transfer. Google's spam policies include exchanging goods or services for links and sending someone a free product in return for writing about it and including a link. If the link would not exist without the value exchanged, treat it as paid.
- Sponsored posts and advertorials
- Affiliate links
- Paid directory listings and badges
- Links given in return for free licenses or gifts
- Link insertion fees charged by site owners
The difference qualification makes
A paid link with rel="sponsored" or nofollow is legitimate advertising. It can still bring traffic, sign-ups and brand awareness. A paid link without those attributes is designed to pass ranking credit, which is what the policies forbid, and it creates risk for both buyer and seller.
The buyer's risk is that Google ignores the links, so the money buys nothing, or in more serious cases issues a manual action. Sellers that sell links at scale can lose the ability to pass credit at all.
How to evaluate paid placements
Judge them as media buys. Ask who reads the site, whether the placement will be seen, what traffic it is likely to send and what that is worth, assuming the link carries no ranking credit at all. If the deal only makes sense because of the link, it is a link buy.
Example
A sponsored roundup
An illustrative contract management tool, Clausewick, is offered a paid spot in a "best tools" listicle on a mid-sized legal tech blog. The blog agrees to label the slot as sponsored and use rel="sponsored". Clausewick checks the post's traffic estimates and decides the readership is worth the fee as advertising, without counting on any SEO value.
Common mistakes
Paying for "guest posts" that are really link buys
A fee for publishing an article with a followed link is a paid link, however it is labeled.
Ignoring affiliate links
Affiliate partners linking with followed links can create a paid link pattern you are responsible for. Set rules in the program terms.
Questions
Not always, and Google does not explain its methods. It relies on algorithms, manual review and spam reports. The policy applies whether or not a given link is detected.
Yes, if the link is qualified or you value the listing for its visitors rather than the link.
