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Nofollow, Sponsored, and UGC: What Link Attributes Really Say

A link’s rel attribute is a declaration about your relationship to that link — not a switch that turns ranking value on and off. That single sentence resolves most of the confusion around it. rel="sponsored" says I was paid for this. rel="ugc" says a visitor wrote this, not me. rel="nofollow" says I am not vouching for this. A link with none of them says I chose to point here on my own judgement, which is the state SEOs casually call dofollow — a word that is not an attribute and has never existed in any specification.

Get the direction of that relationship right and the rest is straightforward: these attributes are things you publish about your outbound links. You almost never control the attributes on links pointing at you.

What each value means

rel="nofollow" was introduced in the mid-2000s as a joint response to comment spam. The bargain was simple: if publishers marked links they had not editorially chosen, spammers would stop having a reason to post them. It became the general-purpose “I am not endorsing this destination” annotation — used for comment fields, untrusted sources, links you are citing critically, and anything you would rather not be read as a recommendation.

rel="sponsored" covers links that exist because of compensation: advertisements, affiliate links, paid placements, sponsorships, gifted products. If money, goods, or services changed hands, this is the correct label.

rel="ugc" covers user-generated content — comments, forum posts, profile fields, reviews, wiki edits. It describes who wrote the link, not whether it is trustworthy.

You can combine them, and sometimes should: a paid link inside a reader comment can legitimately carry both sponsored and ugc. And Google has said it treats all three as hints for ranking purposes rather than absolute directives — it reserves the right to decide how much weight to give a link regardless of the label. That change surprised people who had treated nofollow as a hard wall. It should not have: the label was always a statement about your relationship to the link, and what a search engine does with that statement was always its own decision.

Why this matters if you publish anything

Two obligations follow, and only the first is negotiable.

Mark compensated links. This is not a best practice, it is the line between normal publishing and a link scheme. Google’s spam policies describe exchanging links for money, goods, or services without qualifying them as manipulative. Sponsored or nofollow, applied honestly, is what keeps an ad an ad. Note that this is a rule about your outbound links, so it is entirely within your control — which is why getting it wrong is hard to excuse and easy to fix.

Mark links you did not choose. If your site accepts comments, forum posts, or profile URLs, those links are not your editorial judgement and should not be presented as such. This is the mechanism that made mass comment spam pointless, and it also protects you: a site that publishes thousands of unvetted outbound links has told search engines something about its own editorial standards.

Where people get it wrong

It is not, for three reasons. It can send you real readers. It can get a page discovered by people who write things. And a mention in a widely read publication frequently produces secondary links from people who found you through it — those are ordinary editorial links. Treating a nofollowed mention as a failure is one of the most common ways teams misjudge their own results. We cover the adjacent case — being named with no link at all — in why people mention you without linking.

The absence of an attribute is not a guarantee of anything. The link still has to be found by a crawler, and it still has to look like a human decision. A plain link on a page built by a script to hold links is not a vote; the missing attribute changes nothing about that. The property that matters is whether somebody chose to link — see editorial links versus links you placed yourself.

Nofollowing your own outbound citations to “keep the equity”

This one refuses to die. Selectively suppressing your own references to conserve value did not work the way its advocates claimed, and it degrades the thing that makes writing citable in the first place. Link to your sources. The link equity model is not a reason to be a bad citizen.

Adding sponsored to a paid link is honest disclosure. Buying a link and asking for it to be left unmarked is the scheme, and the attribute is not what makes it one — the payment for ranking value is. There is no version of this we will help you optimise, and the reason is not squeamishness: the entire point of a link as evidence is that it was not purchased.

Confusing attributes with what your tools report

Third-party link tools apply their own rules about which links appear in which totals, so filtering a report by attribute can make your numbers move without anything having changed on the web. That is a measurement question rather than a policy one, and it is a different subject from this post. What the attribute means is fixed; what any given tool counts is a vendor decision.

You do not get a say in how other sites annotate their links to you, and asking is usually a bad look — it converts a compliment into a negotiation and signals that you wanted the link for ranking rather than for readers. The one legitimate exception is a factual correction: if a publication marked a link as sponsored when nothing was paid for, that is a mistake worth politely flagging, because the label misdescribes the relationship.

Otherwise, take the mention. Attributes are the publisher’s statement to make, and a site that annotates carefully is exactly the kind of site whose unannotated links mean something.

The short version

The three attributes are a vocabulary for describing how a link came to exist: paid, contributed by a visitor, or not endorsed. Publish them honestly on your own links and you are compliant, readable, and boring in the way that keeps sites out of trouble. Read them as a scoreboard on links pointing at you and you will spend a lot of time on a number that was never yours to manage — the better use of that time is earning the kind of links nobody has to annotate.

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