Outbound Links in Guest Posts: Editor Table and rel Guide

Before a guest post goes live, each outbound link should pass three tests: does it open and support the sentence it sits in, does it connect to a commercial or related interest, and if so, which rel value does it carry? An editor who writes the answers into one table makes link decisions repeatable instead of personal. If you run a blog that takes outside contributions, or you approve incoming posts, the tables below are meant to be copied into your own workflow.

The short answer: for an unpaid guest post, a genuine editorial source link with no commercial tie is not something Google's outbound-link documentation requires a rel value for. Paid placements and commercial ties get sponsored (nofollow is also accepted). Keyword-rich links to the author's own site need a separate review.

This is general information, not legal advice. The principles here come from Google's search documentation; for the legal consequences of a payment or commercial relationship in your country, consult a qualified lawyer.

Start with the link, not the post

Why a per-link table beats a general impression

Reading a guest post and deciding "the links look fine" is a feeling, not a decision. Links differ from each other: one is a footnote to an official page, another sells a product, a third points to the author's employer. Putting them on separate rows forces the editor to say what each one is. It also leaves a record, so when a change request arrives six months later you can see why a link carried the value it did without reconstructing the reasoning.

What counts as an outbound link in a guest post

Every link that leaves your domain counts: links in the body, in the author box, in captions, behind images and in any widget the post template adds. The author box deserves its own row because it is the one place where the author's interest is stated openly. Image links belong in the table as well. Google's page on crawlable links (Opens in a new tab) says that for image links Google uses the alt attribute of the img element as the anchor text, so an image link has anchor text even though readers do not see words.

Classifying each link

Source links

A source link goes to the page where the claim lives. The editor opens it, finds the sentence and compares it with the post. A link to a homepage or an index page does not prove anything, so it is replaced or the claim is cut. Where possible, prefer the official or primary page. When the source is a vendor's own study, the post should say so, and the link table notes that the source has an interest.

Editorial mentions

An editorial mention points readers to a tool, a book, a report or another site because the author thinks it is useful, with nothing exchanged. These links are fine when the author declares no relationship and the text gives a reason for the mention. The question to ask is simple: would the sentence still be written if the link were taken away? If the sentence exists only to carry the link, treat the link as a commercial candidate.

Author and related-party links

Links to the author's own site, employer, client or a partner are related-party links. They are not wrong, but they are the group where the author's interest and the reader's interest can diverge, so they get their own row and their own rule in the policy.

Commercial links

Any link where money, product, a discount, a partnership or another benefit changes hands is commercial. Whether the benefit comes from the linked brand or from a third party does not change the classification.

What Google's outbound-link page says

The page on qualifying outbound links (Opens in a new tab) recommends three values. Links that are advertisements or paid placements should be marked sponsored; nofollow was previously recommended for these and remains an acceptable way to flag them, though sponsored is preferred. Links in user-generated content such as comments and forum posts should be marked ugc. Nofollow is the value to use when the other values do not apply. The page also says links marked this way will, as a rule, not be followed, while the linked pages may still be found through other means such as sitemaps or links from other sites, and that you can combine several values in one rel attribute.

Two things the page does not do. It does not say that every external link must carry a value, and it does not describe a rule for unpaid guest posts. Where the documentation is silent, the editor's choice is a policy choice, and the policy should say so openly.

The spam policy lines that touch guest posts

Google's spam policies (Opens in a new tab) define link spam as creating links to or from a site primarily to manipulate search rankings. Among the examples it lists buying or selling links that pass ranking credit, including exchanging money for links or for posts that contain links. It also lists excessive link exchanges and partner pages made only for cross-linking. One example speaks directly to this very subject: links with optimized anchor text in articles, guest posts or press releases distributed on other sites. The same page says paid links are not a violation when they are qualified with nofollow or sponsored.

For the editor this translates into three flags during review. A payment or equivalent benefit linked to the post calls for a qualified link. A request for a keyword-rich anchor to the author's own site calls for review, whether or not money changed hands. A reciprocal offer ("you link to us, we link to you") is recorded as a commercial relationship and decided under the policy.

Anchor text and link markup

The crawlable-links page describes good anchor text as descriptive, reasonably concise and relevant to the page it sits on and the page it points to. Generic phrases such as "click here" give readers and Google little context, and the page suggests reading the anchor text alone, out of context, to see whether it still makes sense. It also says Google can crawl a link only if it is, in the normal case, an a element with an href attribute, and that links in other formats, such as ones that work only through a click handler, are not reliably parsed.

An editor's checks follow directly: rewrite vague anchors, simplify anchors that read like a search query, and make sure links survived the copy-and-paste into the publishing system as real links. A post pasted from a document can lose its links on the way, for example when a formatting plug-in replaces them with plain text or script-driven elements, and only a post-publication look will show it.

The rel decision table

The "no value required" row is a reading of what the page does not demand, not a rule it states. A publisher may choose nofollow for every outbound link in an unpaid guest post, and that is a legitimate editorial setting. What matters is that the choice is written down and applied the same way each time. For the broader comparison of the values, see dofollow vs nofollow vs sponsored vs ugc links.

Decision rule: should editorial links in unpaid posts stay unqualified?

Practical suggestion: split the links into three groups.

1. Genuine sources and editorial mentions with no tie: leave unqualified, because the link supports a claim the publisher is willing to stand behind.
2. Links to the author or a related party: allow them in the author box only, and give them nofollow or sponsored depending on the tie.
3. Any link with a commercial relationship: sponsored, plus a disclosure sentence in the post.

This is a recommendation, not a requirement from Google. Its reasoning is that the spam policies name optimized-anchor guest post links as an example, so treating the author's self-interested links as automatically trustworthy exposes the publisher to unnecessary risk.

Reading the policy line against a real submission

Suppose an author asks for one link in the body to a product page and says no money is involved. The spam policy does not turn that into a violation by itself; it describes link spam as links created primarily to manipulate rankings, and it names optimized-anchor guest post links as an example. So the editor asks what the sentence would say without the link, what the author gains if readers click, and whether the same author sends this pattern repeatedly. Three answers that point toward self-interest make the link a related-party link, and the table treats it that way regardless of whether cash moved.

A log that survives staff changes

A one-row-per-link log is the artifact that makes later decisions cheap. It should be written at approval time and stored with the draft. If your site also sells placements, align the columns with the logic in rel labeling for publishers who sell backlinks; that article covers the paid-placement side, while this table covers unpaid and mixed guest posts.

Wording a rule in the policy

• Source links must point to the page where the claim appears; homepages and index pages are not accepted.
• Links to the author's own site or employer appear only in the author box, limited to one link.
• Any link tied to payment, a product or another benefit carries sponsored, and the post states the tie.
• Shortened URLs are not accepted; tracking parameters need an explanation.
• Adding links after publication follows the change request process on the guest post policy page.

For the disclosure side of labeling, sponsored content disclosure, rel sponsored and ethics adds context. The two pages above explain concepts; the tables above are specific to an editor's decision flow.

The post-publication link sweep

Why one check is not enough

A link that was right on publication day can change: the target moves, disappears or is rewritten, or an edit to the post strips its rel values. A sweep confirms links still open, rel values still appear in the HTML and the log still matches the page. The documentation offers no sweep frequency, so the interval is yours to set.

• Each link still reaches the same destination and does not return an error status.
• The rel values in the HTML match the log; no editor or plug-in removed them.
• The author box link text matches the approved text.
• No new links were added; if any were, a change request record exists.
• Targets still relate to the claim; the page content has not been replaced.

Technical form of the link

Shortened URLs hide the real destination and can be repointed after approval, so ask for the final address. Tracking parameters raise two questions: is the target the same page, and does the parameter point to a commercial tracking arrangement? The documentation has no rule on tracking parameters in guest posts; as a practical suggestion, ask the author what the parameter is for and treat the link as related if a commercial tracker is involved.

When authors push back

"Why was my source rejected?"

Answer about the page, not the person: "The cited sentence is not on this page. Please send a page that supports it, or change the sentence." That keeps the exchange on something both sides can check.

"I have no commercial tie, so why sponsored?"

Settle two things: does the link go to the author's or a connected party's page, and does that contradict the relationship stated on the form? If it does not, a pure source link gets no value. If something is unclear, nofollow or removal is the safer path as a practical suggestion; sponsored is for a real payment or benefit.

"Other sites let this through"

Point to your policy and to what Google has published, not to what other sites do. "Other sites may publish it; this site's policy is as follows" ends the comparison without a judgement about the author.

Common mistakes and fixes

An editor's ten-point link checklist

1. Open each link and write its final address in the table.
2. Find the claim on the target page.
3. Compare the form's relationship statement with the links.
4. Flag every link to the author's own site separately.
5. Give paid or related links sponsored; document that nofollow is also accepted.
6. Confirm anchor text is descriptive and plain.
7. Remove shortened URLs or justify tracking parameters.
8. Check image links and their alt text.
9. Make sure the disclosure sentence matches the link class.
10. Attach the table to the approval note and set a sweep date.

How many links is too many?

The documentation names no number. The editor's measure is service to the reader: each link should support a claim, explain a concept or send the reader somewhere useful. If commercial pages make up most of a post's links, the post reads as promotion regardless of rel values, and it will struggle at the originality check. Practical suggestion: set a maximum for commercial links in the policy and tell authors at submission time.

Example scenario: a gardening blog

Example scenario: A home gardening blog receives a guest post from a nursery owner titled "Preparing raised beds for spring." The editor lists the five links. The agricultural extension page on soil preparation is a genuine source and takes no value. A link to a seed library's public catalogue is informational with no tie. Two links to the nursery's online shop are related-party and commercial; the editor removes the one in the body, moves the other to the author box and marks it sponsored. The fifth link goes to a garden-supplies directory with a long keyword-style anchor, and the author reports no relationship; the editor shortens the anchor and gives it nofollow. One disclosure sentence about the nursery's role appears near the top of the post. The table goes into the approval note and a sweep is scheduled for after publication.

Frequently Asked Questions

Do source links in an unpaid guest post have to be nofollow?

No. Google's outbound-link page recommends sponsored, ugc and nofollow for specific situations and sets no requirement for a genuine source link with no commercial tie. A publisher may still choose nofollow for all of them, which is an acceptable editorial setting.

Which rel value should an author bio link get?

The documentation has no separate rule for bio links. As a practical suggestion, give a link to the author's own site or employer sponsored if there is a commercial tie and nofollow if the relationship is unclear, and keep the anchor text plain.

What if the author insists on a keyword-rich anchor?

Google's spam policies list links with optimized anchor text in articles and guest posts distributed on other sites among its link spam examples. As a practical suggestion, ask for a plain anchor and tie any refusal to your written policy.

Is nofollow enough for a paid post, or must it be sponsored?

Google's page says nofollow remains an acceptable way to flag paid links while sponsored is preferred. This is general information, not legal advice; for the legal side of a paid relationship, ask a qualified lawyer in your country.

How often should I sweep published links?

The documentation gives no frequency. As a practical suggestion, sweep once right after publication, then at the intervals your policy sets or whenever a change request arrives.

What makes a link crawlable?

Google's crawlable-links page says a link needs to be an a element with an href attribute, and that links that work only through a click handler are not reliably parsed. It also recommends descriptive anchor text.

Conclusion

Run three questions on every outbound link in a guest post: does it open and support the sentence, is there a commercial or related tie, and which value follows. Leaving a genuine source without a value does not contradict Google's documentation; mark linked commercial ties with sponsored, and give keyword-rich links to the author's own site special attention. Sweep after publication and keep the log current. This is general information, not legal advice; for legal questions, consult a qualified professional.

If you are considering a placement as a publisher or a buyer, the guest post service page lists the options and publishing terms.