What are backlinks?

Backlinks: definition and meaning

A backlink is a link that points from another website to yours. For search engines it is a kind of recommendation: whoever is linked to appears relevant and trustworthy. The original Google algorithm, PageRank, was already built on this principle.

Links remain among the important signals today. What counts, however, is not sheer volume: a link from a chamber of crafts (Handwerkskammer), a trade portal, or the local newspaper generally carries considerably more weight than dozens of entries in arbitrary link directories.

How backlinks work

Crawlers follow links from page to page. That is how they discover new content and recognize who links to whom. Topical fit, the trustworthiness of the linking page, the link environment, and the anchor text are among the factors in evaluating a backlink. A link inside a specialist article is usually evaluated differently from one in a page footer or a link list. The rel attribute can be used to label the type of link:

• Standard link: can pass signals to the linked page
• rel=nofollow: a hint that the link is not meant as an endorsement
• rel=sponsored: for paid or otherwise compensated links
• rel=ugc: for user-generated content such as comments and forums

Real-world example: a solar installer builds links

A photovoltaic installer wants to become more visible regionally. Instead of buying link packages, it gets listed as a specialist installer in an inverter manufacturer’s dealer list and in the directory of its trade guild (Innung), provides local press with the key facts of a newly built system, and publishes a specialist article on an industry association’s portal.

Each of these links comes from a page that fits by topic or region and is useful to visitors. Such links build up slowly but remain stable, and they also strengthen prospects’ trust. For regional businesses in particular, recommendations from their own surroundings count, because they reflect real business relationships.

Benefits, limitations, and common mistakes

Good backlinks bring trust and additional visitor traffic. Limitations: building them takes time, the effect of a single measure is hard to measure, and Google takes action against manipulative linking. Under its spam policies, bought links and extensive link exchanges are not permitted and can lead to demotions or manual actions. In addition, links lose their value if the linking page disappears or the target address is not redirected after a relaunch. Typical mistakes:

• Link packages, blog networks, or mass directories
• The same anchor text for every link
• Large-scale link exchanges following the pattern “link for link”
• Guest posts written only to build links, without real content value
• Links from off-topic or dubious sites

What companies should look out for

Earn links instead of buying them: through useful content, studies, or tools, through cooperation with partners, associations, and manufacturers, and through press work and local presence. Check your link profile regularly in Search Console and keep a record of where links come from, so that anomalies can be spotted early. Nano Concepts advises on link strategy and makes sure links arrive technically clean.