Should you really use nofollow for all the links placed in your guest posts?

Why does Google consider guest post links to be unnatural?

Google's reasoning is straightforward: a natural link is an editorial link, voluntarily provided by the webmaster of the host site because they find your content relevant. When you write a guest post, you control the content and thus the links that you insert.

From the algorithm's perspective, this link is self-placed — you put it there yourself, it does not reflect a spontaneous editorial vote. This is the same logic that applies to blog comments with links, forum signatures, or social profiles: whenever the author controls the link, Google becomes wary.

What does "Google will attempt to ignore these links" mean?

Mueller does not say that Google systematically penalizes guest posts, but that it tries to neutralize their algorithmic weight. The algorithm detects patterns: author signature with link, bio at the end of the article, commercial anchors in the body of the text.

However, "attempt" does not mean "ignore". This implies that detection is not infallible — some links get through, others do not. And this is where it becomes vague: what criteria differentiate a "natural" guest post from a spammy guest post?

When should you actually use nofollow on these links?

Google recommends tagging with nofollow (or sponsored) any link that you place yourself in guest content. This aligns with guidelines on paid links and link schemes.

But the reality on the ground is more nuanced. If you write for a leading media outlet in your field, with a true editorial process and your link brings real documentary value, considering it as spam is debatable. The problem is that Google does not always make this distinction.

• Link self-placement = algorithmic red flag for Google, regardless of content quality
• Mueller recommends nofollow as a precaution, not because it is always technically necessary
• Google "attempts" to ignore these links: detection is not binary or infallible
• Guest posts remain a legitimate practice for audience and reputation, not for raw PageRank
• A nofollow link in a quality guest post can still generate referral traffic and brand signals

Is this statement consistent with practices observed on the ground?

Yes and no. Yes, because it is indeed observed that many guest posts have no positive impact on ranking — and can even trigger filters if the volume is too high or the anchors too optimized. No, because some backlinks from columns or guest posts on reputable media continue to pass link juice.

The real problem is that Google does not clearly distinguish between a quality editorial guest post and a disguised industrial link-building campaign. The algorithm relies on superficial signals: presence of an author bio with link, anchor ratio/content length, frequency of publication on the host domain. [To verify] whether these criteria truly capture editorial intent.

What nuances should be applied to this recommendation?

It's essential to distinguish several types of guest posts. A column in Les Échos or TechCrunch, validated by an actual editorial team, is entirely different from an article published on a PBN blog that accepts any content. Yet, formally, both are guest content with self-placed links.

If you write for a publication with strict editorial guidelines, the media should decide the link attribute, not you. Imposing a dofollow link moves you out of the editorial framework — if the editor-in-chief chooses to leave the link as dofollow because they find the source relevant, the link technically becomes editorial again.

Second nuance: the goal of the guest post. If you aim for referral traffic, reputation, or audience — the nofollow does not change performance. If you are solely targeting PageRank, you are already in a manipulation mindset that Google actively combats.

In which cases does this rule not strictly apply?

When the link is not in the author bio but naturally integrated into the body text as a documentary source, reference, or example — and the anchor is generic or brand-oriented (not commercial). Google finds it harder to identify this type of link as self-placed.

When the host site has a strict editorial process and systematically refuses advertising or promotional content. In this case, the editorial legitimacy of the site prevails — but you have no guarantee that Google will detect it correctly.

What should you concretely do with your existing and future guest posts?

For new guest posts, systematically tag your links as nofollow or sponsored if you control the final content. This is the safest position in line with guidelines. If the host site refuses and enforces a dofollow, that's great for you — but it's no longer your responsibility.

For existing guest posts with dofollow links, assess the risk on a case-by-case basis. If you have a few on reputable sites with good traffic and quality content, there’s no need for panic. If you have conducted an aggressive campaign with dozens of low-quality guest posts, optimized anchors, and little diversity, you are exposed.

What mistakes should you absolutely avoid in your guest posting strategies?

First mistake: considering the guest post solely as a backlink tactic. If your only goal is dofollow, you are in a spam logic — and Google will eventually detect it, either by algorithm or through manual action.

Second mistake: publishing mediocre content just to place a link. A guest post that brings no value to the host site's audience is a negative signal — for Google, for the partner site, for your own reputation.

Third mistake: anchoring in a commercial or overly optimized manner. “SEO Agency Paris” in the author bio is an immediate red flag. Prefer brand or generic anchors — and place your keywords in the H1 or meta, not in the backlink anchor.

How to audit your guest post link profile?

Use Search Console and a tool like Ahrefs or Majestic to list all your backlinks. Filter by context (author bio, signature, guest article). Evaluate the quality of the host site: organic traffic, thematic relevance, penalty history.

If you identify guest posts on dubious sites or with overly optimized anchors, disavow them or contact the webmaster to request they switch to nofollow. This is tedious, but it’s the price to pay if you want to clean a polluted profile.

• Tag as nofollow/sponsored all your self-placed links in future guest posts
• Audit your backlink profile to identify at-risk guest posts (commercial anchors, low-quality sites)
• Prefer guest posts on media with strict editorial processes and real audiences
• Never publish mediocre content solely to obtain a dofollow backlink
• Diversify your backlink sources: do not rely solely on guest posting
• Monitor the evolution of your link profile in Search Console to detect any alert signals