Guide
What Google actually says, where the line is, and how to stay on the right side of it. From a link exchange, so we have tried hard not to tell you what you want to hear.
Written by AxelonLast updated
The short answer
A few link exchanges between genuinely related sites are normal and fine. Google names excessive link exchanges as link spam: swapping at volume, with unrelated sites, or through pages that exist only to hold links. The realistic downside of getting it wrong is that the links are ignored, not that your site is punished, unless you built the pattern yourself at scale.
Not by themselves. Google’s spam policies name "excessive link exchanges" as link spam, and the word that matters is excessive. Two relevant sites linking to each other, in content, where a reader would plausibly click, is ordinary behaviour on the web. What Google targets is the pattern: lots of swaps, with sites on unrelated subjects, done purely to move rankings.
Its spam policies list, as an example of link spam: "Excessive link exchanges ('Link to me and I'll link to you') or partner pages exclusively for the sake of cross-linking". That is the whole statement. It does not say link exchanges are banned, and it does not give a number. It describes swapping at a scale, or for a purpose, that exists only to manipulate rankings.
Usually, nothing you would notice: the links are ignored. Google has said its systems work to nullify links they do not trust rather than punish the site receiving them. The exception is a pattern you clearly built yourself at scale, which a human reviewer can treat as a manual action. If you want to know whether that has happened, Search Console has a Manual Actions report, and if it is empty, you do not have one.
Sources: Google: link spam update (2021)Search Console Help: Manual Actions report
Google has never published a number, so anyone quoting one is guessing. A more useful test is the shape of your whole link profile. If most of the links pointing at your site are swaps, or you would swap with anyone regardless of subject, that is the pattern the policy describes. A handful of exchanges with sites you would happily link to anyway, alongside links you earned other ways, is not.
The same things that make any link worth having. The other site covers a related subject. The link sits inside the content of a page where it makes sense, not in a footer, sidebar or a page of links. The site has real readers. The anchor text describes the page naturally rather than repeating a commercial keyword. And the most useful test of all: you would link to that page even if they were not linking back.
Sources: Google: spam policies (link spam)Google: link best practices (anchor text)
Google has not said a straight link-for-link swap must be nofollow. It lists excessive exchanges separately from paid links, and asks for rel="sponsored" when money or other payment is involved. If you want no risk at all, you can mark exchanged links nofollow, but you give up most of the ranking value. A relevant link still sends readers either way, which is often worth more than people credit.
Sources: Google: qualify your outbound linksGoogle: spam policies (link spam)
Yes. A page that exists only to hold links to partner sites is named directly in Google’s policy as "partner pages exclusively for the sake of cross-linking". Networks where hundreds of unrelated sites all link to each other are the clearest example of the excessive pattern. Both are easy to spot because they look nothing like how sites link to each other naturally.
No. Linking A to B, B to C and C to A is done to hide that a swap happened, and it adds complexity without changing what the links are. If the sites are relevant to each other, the direct swap was fine. If they are not, routing it through a third site does not fix that.
How AnyBacklink handles this. Sites are matched on shared topics, so every swap starts from relevance. Every site is verified before anyone can see it. Each site has a small, fixed number of keywords, which keeps the number of matches in proportion. And there is no public list of members or swaps, so nothing on the web connects the sites involved.
AnyBacklink matches you with verified site owners covering the same topics, so every exchange starts from relevance. Free, and nothing is bought or sold.