A backlink is a link that another website creates to a URL on your site. If a media outlet mentions a company and links to its website, or if an industry guide recommends a tool via a link, that company or tool has received a backlink.
It is also known as an inbound link, because it comes from an external domain. It is part of off-page SEO: the actions and signals that occur outside of a website, but which can influence its discoverability, visibility, and digital reputation.
However, reducing link building to accumulating links is a bad idea. A useful link is not defined solely by the website it comes from or by a metric shown by a tool. What matters is the thematic relationship, the editorial context, the utility for the reader, and the naturalness with which it was earned.
What is a backlink
A backlink occurs when a page A links to a page B that belongs to another site. From the point of view of page B, that link is a backlink.
It is worth distinguishing it from other common links:
- Internal link: connects two pages of the same website. For example, a product page that links to a buying guide on the same e-commerce site.
- External link: goes from one website to another. For the person publishing that link, it is external; for the destination website, it is a backlink.
- Backlink: is the name given to the link from the perspective of the site that receives it.
Imagine that a specialist magazine publishes an article on sports equipment and links to a store's size guide. The magazine is including an external link; the store receives a backlink. If the link helps to provide more information to the reader, it also has a logical editorial context.
Why backlinks remain relevant in SEO
Links help to connect content on the web. They can make it easier for search engines to discover pages and better understand the relationship between resources, topics, and sites. They can also act as a signal that a source, a product, a study, or an explanation is worth consulting.
That does not mean that every backlink improves positions or that links are enough to rank. Google Search evaluates many signals, including content utility, answering search intent, page experience, and the relevance of the result. A link profile does not make up for a slow website, an unclear service page, or content that does not solve any need.
Even so, SEO backlinks can add value on several levels:
- Discovery: a linked page can be easier to find within the web ecosystem.
- Context and recognition: a recommendation from a relevant publication can reinforce a brand's relationship with its sector.
- Referral traffic: people who click on a link can arrive directly at the website, even if they do not come from a search engine.
- Brand visibility: a mention in a media outlet, association, or specialized resource can increase a company's awareness.
The key is to understand that a quality link can generate value even outside of search engine rankings. If no one would have a reason to click, the link contributes little as an editorial recommendation, even if it appears on a site with eye-catching metrics.
What makes a backlink valuable
There is no universal figure that determines if a link is good. The so-called domain authority is usually an estimate created by third-party tools, not an official Google metric or a verdict on the quality of a publication. It can be used to compare trends, but it should not replace human review.
To value an opportunity, it is more useful to apply a simple matrix with five questions.
1. Is there thematic relevance?
A link from a website related to the sector, product, or problem your page solves usually makes more sense than one from a site with no connection at all. A veterinary clinic cited in an animal care guide has a clear relationship. A similar link on a generic page unrelated to the topic is less convincing.
2. Is the link integrated into a useful context?
Contextual links, included within content that explains, compares, or expands on a subject, are usually more useful for people. A reasoned recommendation within an article is not the same as an isolated link in a block of pages without editorial content.
3. Does the source site seem credible?
Check the general quality of the site: who publishes, if its content is well-maintained, if there is a recognizable audience, and if the linking page has a clear purpose. Credibility does not depend solely on its size. A well-managed, specialized local publication can be very relevant for a business in its area.
4. Can it attract real visits?
A link can be a gateway to new customers, readers, or contacts. Value whether the audience of the source site might have a real interest in your content and if the destination page answers what the linked text promises.
5. Is the link text natural?
The anchor text is the visible part that is clicked on. It must be descriptive and consistent with the content. A natural variety of brand mentions, resource titles, and clear descriptions is preferable to repeating an identical commercial phrase on numerous sites.
Types of backlinks and link attributes
Not all links communicate the same relationship. A link's code can incorporate attributes to indicate its nature. These attributes are signals and should be understood in their context, without attributing automatic effects to them.
- Follow link: is the common way to refer to a link without attributes that indicate a different relationship. It can be part of the general system of links that search engines analyze.
- Nofollow link: includes the nofollow attribute. It can be used when the publisher does not want to expressly endorse the link or cannot control all destinations.
- Sponsored link: the sponsored attribute indicates an advertising, sponsorship, or compensation relationship.
- UGC link: the ugc attribute identifies links created by users, such as those that may appear in comments or forums.
A nofollow link is not equivalent to a useless link. It can generate traffic, facilitate the discovery of a brand, and provide notoriety if it appears in a relevant source. Likewise, a link without a restrictive attribute does not guarantee results on its own.
The editorial format also matters. A brand mention, a quote in a report, a resource included in a guide, a professional profile, or an industry directory can have different functions. The essential question remains the same: does it provide information or a useful path for the reader?
How to get backlinks naturally
The most sustainable way to obtain links is to create legitimate reasons for other people to want to cite a page. This requires editorial work, knowledge of the public, and professional relationships, not massive automation.
Creating linkable content
Pages that solve specific questions have more chances of being recommended. They can be practical guides, transparent comparisons, simple tools, technical documentation, visual explanations, or original data, provided they are well-contextualized and verifiable.
Before producing a resource, it is worth asking what need it covers and who might find it useful. A very broad guide can attract visits, but a specific piece that answers a frequent question in a sector can be easier to cite.
Working on digital public relations
Digital public relations seeks to provide useful information to journalists, media, associations, and specialized creators. It does not consist of asking for links indiscriminately. It consists of offering a story, a verifiable fact, a novelty, or a source that can enrich coverage.
The best proposal is concrete: explain why the information is relevant to the media's audience and direct to a resource that expands on the subject. The link, if it arrives, will be a consequence of pertinent coverage, not an imposed condition.
Publishing guest posts with criteria
Guest posting can provide visibility when collaborating with a related publication and delivering original, useful content adapted to its audience. The goal should not be to place repeated links, but to share knowledge that justifies the presence of a brand or professional.
Recovering mentions and reviewing broken links
A company can detect brand mentions without a link and contact in a polite manner when adding a reference helps readers. It can also identify broken links to its own resources that still exist at another URL. These are reasonable actions if done selectively and with a useful proposal.
Backlinks, press releases, and corporate communication
A press release has the main purpose of informing about a real novelty: a launch, an opening, an investigation, a relevant agreement, or a milestone that may have public or industry interest. It should not be used as a mechanism to distribute the same text massively with optimized links.
There is an important difference between publishing a release, obtaining journalistic coverage, and receiving an editorial link. A media outlet can publish the information in full, summarize it, contrast it with other sources, or decide not to cover it. It may also mention the company without linking. Each result responds to its own editorial decisions.
Good corporate communication improves its options when it offers verifiable information, clear materials, and a landing page that expands on the news. Editorial publishing platforms like PublicaGratis can serve to provide visibility to corporate content, but the lasting value will depend on the information being relevant and reaching related audiences.
Errors and risks to avoid
Artificial tactics can deteriorate a website's link profile and, above all, divert resources from more useful actions. Avoid these practices:
- Buying links massively or hiring packages that promise a fixed quantity of backlinks.
- Participating in systematic link exchanges without a clear editorial reason.
- Creating networks of sites for the sole purpose of linking to a page.
- Leaving links in comments, forums, or irrelevant profiles.
- Repeating the same commercial anchor text in every publication.
- Using duplicated and over-optimized press releases as if they were journalistic content.
- Making decisions only based on an authority score shown by a tool.
It is also not realistic to promise ranking improvements by reaching a specific number of referring domains. A healthy link profile is usually diverse and consistent with a brand's actual activity, not the result of a mechanical campaign.
How to review a website's backlink profile
Analyzing links does not require chasing every individual URL. For an initial review, gather the domains and pages that link to your site using an analysis tool and, when possible, cross-reference the information with Google Search Console.
Then, review a representative sample in this order:
- Referring domain: identify who is linking and if their subject matter is related to your business.
- Origin page: check if there is real content, editorial context, and quality signals.
- Destination page: verify that the link leads to a useful, active URL that is aligned with the mention.
- Anchor text and location: observe if it is descriptive, varied, and natural within the content.
- Traffic and mentions: analyze if those links generate visits, contacts, or brand exposure.
Look for patterns before making decisions: a strange concentration of irrelevant links, excessively repeated anchor texts, or links from useless pages may deserve attention. But it is not advisable to react automatically to any low-quality link. The priority should be to understand the whole and reinforce positive signals with content and communication.
Conclusion: utility over quantity
A backlink is a potential recommendation from another website to your own. Its value does not depend on adding links without criteria, but on there being a logical relationship between the source, the linked content, and the need of the person reading it.
The best strategy combines useful content, editorial presence, digital public relations, and a sensible review of the link profile. If a guide, a news item, or a resource is worth citing, backlinks can arrive as a consequence of providing value. That is a more solid foundation than any shortcut aimed solely at manipulating search results.