Blogo Team
Should You Link to Other Suppliers in Your Blog Posts?
When outbound links help trust and rankings, when they send buyers to competitors, and the source types that are always safe to cite.
Yes, in most cases you should link to other suppliers when the link genuinely helps your reader, such as a component maker's datasheet, a complementary product your buyer will also need, or an honest comparison. Google's own documentation says linking out "isn't something to be scared of" and can help establish trustworthiness. The real risks are narrower: placing a competitor link right beside your own enquiry form, linking to weak or outdated pages, and links that exist because of a payment, free samples or a swap rather than editorial judgement.
Below: what Google says about outbound links, when a supplier link earns its place, when to hold back, which sources are safe by default, and a reusable checklist.
Image: Miguel Á. Padriñán via Pexels, Pexels License
Why B2B teams hesitate to link out
Most manufacturers and exporters avoid outbound links for two reasons. The first is commercial: a procurement manager reading your article about stainless steel fasteners might also be comparing you with three other factories, and you do not want to hand them a shortcut to one of those factories. The second is an SEO belief that every outbound link "leaks" ranking value, so the safest page is one that links nowhere.
The commercial worry deserves a deliberate answer, covered below. The SEO worry is mostly not supported by Google's own guidance, and avoiding links usually produces thinner articles: figures without sources and technical posts that make the reader search for the standard you just mentioned.
What Google's documentation actually says about outbound links
Google publishes clear guidance on links in Search Central. These are the points that matter for a B2B blog:
| Topic | What Google says | Source |
|---|---|---|
| Linking out in general | "Linking to other sites isn't something to be scared of; in fact, using external links can help establish trustworthiness (for example, citing your sources)." | Link best practices |
| When to use nofollow | Use nofollow "only when you don't trust the source, and not for every external link on your site." | Link best practices |
| Normal editorial links | For regular links you expect Google to fetch and parse without qualification, "you don't need to add a rel attribute." | Qualify outbound links |
| Paid links | Mark advertisements or paid placements with sponsored. | Qualify outbound links |
| Link spam | Creating links "primarily for the purpose of manipulating search rankings" is link spam, including exchanging goods or services for links and excessive link exchanges. | Spam policies |
| Trust signals | Google's self-assessment questions ask whether content presents information in a way you want to trust, "such as clear sourcing." | Creating helpful content |
Two conclusions follow. First, a normal editorial link to another company's page is not a problem, and you do not need nofollow just because the destination is another supplier. Second, the risk comes from why a link exists. A link placed because the source is useful is fine. A link placed because someone paid, sent free product or asked for a swap needs to be qualified, or it falls under Google's link spam examples.
Google does not publish a promise that outbound links will raise your rankings, so neither do we. What its documentation supports is narrower and more useful: citing sources is part of how content earns trust, and Google's helpful content guidance states that among experience, expertise, authoritativeness and trustworthiness, "trust is most important."
When linking to another supplier helps your reader
Ask one question of every candidate link: would the reader be worse off without it? These are the situations where the answer is usually yes.
The fact lives on their site
If your article says a sealant is rated for a certain temperature range, a motor meets a particular efficiency class, or a resin has a specific melt flow index, the most credible source is often the original manufacturer's technical datasheet. Linking to it lets an engineer verify the number in one click instead of trusting your paraphrase.
Example: A packaging machinery exporter writes about choosing servo drives for a filling line. Instead of restating a drive maker's torque figures from memory, the post links to the drive maker's published specification page and adds its own commentary on which configuration suits small batch production.
The supplier is complementary, not competing
Many B2B products only work alongside other products. A valve manufacturer's buyers also need actuators; a label printer's buyers also need adhesive stock. Linking to a reputable maker of the complementary item helps the reader finish the job and shows you understand the whole system.
Example: A hydraulic cylinder factory publishes a guide to seal selection and links to the seal manufacturer's chemical compatibility chart. The cylinder maker does not sell seals separately, so there is no lost sale, and the reader gets an authoritative chart.
You are writing an honest comparison
Buyers compare suppliers whether or not your content acknowledges it. A comparison that names alternatives and links to their public specifications reads as confident and fair. One that refuses to name anyone reads as a sales page. If you choose to write comparison content, link the pages you are comparing against, describe them accurately, and keep your own call to action separate (see below).
When to hold back or use an unlinked mention
Linking out is a default, not a rule. These are the situations where restraint is the better editorial call.
A direct competitor sits next to your call to action
Placement matters more than presence. A competitor link in a neutral background section is a different decision from the same link two lines above your "Request a quotation" button. Near your conversion points, an unlinked mention (naming the company without a link) acknowledges the market honestly without building an exit next to your own door.
The destination is weak or likely to break
Skip pages that look unmaintained, give no clear publisher, do not load properly on a phone, or offer no visible evidence. Supplier product pages often disappear when catalogues are redesigned, so prefer stable documents (standards, regulations, published datasheets) when both would do. If you must reference a source you do not trust, Google's guidance is to add nofollow, but first ask whether you need the link at all.
Your own page answers the question as well
If your own datasheet, case study or FAQ covers the topic with equal or greater depth, link internally instead. Google's link best practices recommend that every page you care about has a link from at least one other page on your site, linked in context. Be honest about the comparison, though: if the external source is clearly better, linking to it serves the reader.
The link is decoration
A good outbound link defines a term, supports a figure, points to a standard, shows an alternative or discloses a relationship. A link that does none of these adds nothing for the reader.
Source types that are safe to cite by default
Some categories of source carry almost no commercial or quality risk, because they are neutral, maintained and usually the origin of the fact itself. Make these your first choice whenever a statement can be supported by one of them.
| Source type | Good for | Typical examples |
|---|---|---|
| Standards bodies | Test methods, tolerances, material grades, quality systems | ISO, ASTM International, IEC, CEN, national standards institutes |
| Government regulators and official registers | Import rules, product safety, labelling, chemical restrictions | Customs authorities, product safety agencies, official journals |
| Platform owners' own documentation | How search, CMS or advertising tools work | Google Search Central, WordPress.org documentation |
| Recognised industry associations | Sector definitions, codes of practice, member directories | National trade associations for your sector |
| Universities and public research institutes | Material science, testing, independent studies | Published papers and institute reports |
| Original manufacturer datasheets | Exact specifications of a component you use or recommend | The component maker's published technical documents |
The last row is the one that involves other suppliers. It is safe when the datasheet is the true origin of a number you are quoting and you are not being paid or supplied for free in exchange for the link. Wherever possible, link to the primary document rather than a blog post that summarises it, and link the exact page that contains the fact, not the organisation's home page.
Choosing the right rel value
Once a link has earned its place, the rel attribute should describe the real relationship, as Google defines it on its qualify outbound links page:
| Situation | What to use | Why |
|---|---|---|
| Editorial citation of a datasheet, standard or useful page | No rel attribute (a normal link) | Google says regular links you expect it to follow need no qualification |
| Advertisement, sponsorship or paid placement | rel="sponsored" | Google asks that paid links be marked sponsored |
| Links added by users in comments or forums | rel="ugc" (or nofollow) | Google recommends marking user-generated links this way |
| A source you need to mention but do not trust | rel="nofollow" | Google's guidance reserves nofollow for sources you do not trust |
| Link exists because you received free product, services or money | rel="sponsored" or rel="nofollow" | Google's spam policies list exchanging goods or services for links as link spam unless the link is qualified |
You can combine values in one attribute, for example rel="sponsored nofollow", as a space- or comma-separated list. The B2B trap is free samples: Google's spam policy explicitly lists sending someone a product in exchange for them writing about it and including a link. If a supplier sent you materials to review and asked for a link, qualify it.
Partner pages and link swaps
Distributors, OEM partners and component suppliers often ask to "swap links". A single, relevant link to a genuine partner, placed where it helps the reader, is an ordinary editorial decision. What Google's spam policies describe as link spam is "excessive link exchanges" and partner pages created only for the sake of cross-linking, along with requiring a link in a contract without letting the site owner qualify it. If a partnership agreement asks for a link, make sure you are free to add sponsored or nofollow.
A pre-publish linking checklist
Write these decisions into a policy so they do not depend on who drafts the post. Before publishing, check every outbound link:
- Purpose: Does the link support a specific fact, definition, standard, comparison or disclosure?
- Origin: Is it the primary source (the standard, regulation or datasheet itself), not a summary of it?
- Exact page: Does it point to the page that contains the fact, not a home page?
- Quality: Does the destination load, work on mobile, show who publishes it, and look maintained?
- Placement: If the destination is a direct competitor, is the link away from your quotation form, pricing or contact buttons?
- Relationship: Was anything given or paid in connection with the link? If so, use
sponsoredornofollow. - Anchor text: Is the link text descriptive? Google's link best practices give "click here" and "read more" as poor examples and note that the words around a link matter too.
- Internal alternative: Would one of your own pages serve the reader equally well?
- Maintenance: For posts older than a year, does someone re-open the links and confirm they still resolve and still say what you cited?
Example policy wording: "We link to the primary source of every specification, standard or regulation we mention. Normal editorial links carry no rel attribute. Any link connected to payment, free product or a partnership agreement uses rel=sponsored. Competitor links never appear in the same section as a call to action. Links in posts are re-checked once a year."
Sourcing and link-checking take time on every post. Blogo, an AI content planner for B2B manufacturers, automates topic choice, research and fact-checking against the pages it cites, then prepares a WordPress draft that your team reviews and approves before anything goes live.
FAQ
Will linking to another supplier hurt my rankings? Google's documentation says linking to other sites "isn't something to be scared of" and that external links can help establish trustworthiness. The documented risks are links created to manipulate rankings, such as paid or swapped links that are not qualified, not ordinary editorial citations.
Should I add nofollow to every external link to be safe?
No. Google's link best practices say to use nofollow only when you do not trust the source, and not for every external link on your site. Normal editorial links need no rel attribute.
A supplier sent us free samples and asked for a link. Is that a problem?
Google's spam policies list sending someone a product in exchange for writing about it and including a link as a form of link spam. If you publish the link, mark it rel="sponsored" or rel="nofollow", and consider disclosing the relationship in the text.
Is it fine to link to a direct competitor? It can be, especially in an honest comparison or when their published data is the original source. Keep those links away from your own calls to action, or use an unlinked mention in sections designed to convert.