Choosing link donors for link building involves analyzing traffic, topical focus, site age, and its link profile in order to gain quality link equity and avoid possible penalties.
Main criteria for choosing donors
For a link to truly pass value and not harm SEO, donors are evaluated against a number of key parameters. Below we look at the main criteria worth paying attention to when selecting sites.
Site topic and relevance
For search engines, including Google, what matters isn’t simply the presence of a link, but its context: how logically it fits into the page’s content and how well it matches the resource’s topic. If a finance site links to another finance resource, such a link looks natural and passes more “weight.” But if it’s placed on an irrelevant site, its value is significantly lower, and in some cases it may look like manipulation.
The ideal option is a direct topical match, but related fields are also acceptable if there’s a logical connection. For example, for an SEO site, resources about marketing, business, or development would work well.
We have articles on the topic of choosing links for difficult niches, as well as affordable links. We recommend checking those out as well.
Site traffic
If a site gets stable organic traffic, that means its pages are being indexed, ranked, and are attracting users. A link from such a resource potentially provides not just an SEO effect but also referral traffic, which further strengthens its value.
When evaluating, it’s important to look not only at the fact of traffic itself, but also at its dynamics. Sharp drops can signal penalties or quality issues, while a stable or growing graph is a good sign.
Domain metrics
Domain authority metrics help quickly assess a site’s “strength” as a donor. They aren’t used directly by Google, but they’re widely used in SEO as a benchmark.
The most popular metrics:
- DR (Domain Rating) in Ahrefs.
- DA (Domain Authority) in Moz.
However, a high DR or DA doesn’t guarantee donor quality — the metrics can be “inflated” using spammy links. That’s why they should only be considered together with other factors: traffic, content quality, and relevance.
You might be interested in our short article about DR
Donor’s link profile
If a donor has quality inbound links from topically relevant, authoritative, and “live” sites, that means the resource itself has a strong link profile and is able to pass more value.
The opposite situation is when a site has a large number of spammy or irrelevant links. In this case it may be under filters or in a risk zone, and links from it will be either useless or even harmful.
Site indexing
Before placing a link, it’s important to make sure the donor site is being properly indexed by Google. If the resource’s pages aren’t getting into the index, or are only being indexed selectively, the value of a link from such a site tends toward zero. Even an outwardly high-quality site can have indexing problems, for example due to technical errors, penalties, or low trust from the search engine.
Placement and type of link
Links placed within a page’s main content — so-called editorial links — carry fairly high value. They fit organically into the text, are surrounded by relevant content, and are perceived as a recommendation rather than an ad. It’s also important to consider the anchor text. It should look natural.
But the greatest weight is passed by links from homepages. Placement in a site’s header or footer gives the maximum boost for your acceptor. But there are nuances worth considering.
If the homepage is overloaded with links, or the site looks questionable, the benefit will be minimal, so it’s important to choose donors with a low number of outgoing links.
That’s exactly why the foundation of the RankExplore exchange’s work is strict selection: the database contains only homepages with an adequate number of outgoing links and real traffic.
Number of outgoing links
The number of links a donor site places on its pages directly affects the value of each individual link. The more outgoing links there are, the less “weight” each one receives.
If a page is overloaded with links, especially commercial ones, this can be a signal to Google that it’s looking at a link-selling platform rather than a full-fledged content resource. In such cases, the effectiveness of placement decreases. When a site regularly publishes articles with a large number of external links, this can point to a “link conveyor.”
Domain history
If a site was previously used for spam, doorway pages, or was part of a PBN network, it may have trust issues with Google. Past violations can continue to affect how the search engine perceives the site.
Site region and language
The donor’s region and language should match your target audience. For Google, it’s important that links look logical not only in terms of topic, but also geography. If you’re promoting a site for the French market, a link from an English-language resource may have less value, especially if there’s no clear connection between them.
That said, international sites shouldn’t be ignored completely. In some niches, links from global resources can be even more valuable if they’re relevant to the topic.
Content quality and type
Search engines, including Google, evaluate not just the fact of placement, but also the environment in which the link sits. If a site publishes unique, useful, and well-structured materials, this increases trust in it — and, as a result, in the links from it.
Texts should be meaningful and written for people, not just for keywords; articles should be updated regularly; the site shouldn’t have obvious link over-optimization or template publications made just for link placement.
Where to look for donors?
Donors should be sought where there’s a chance of getting a quality and appropriate link, not just placement for the sake of quantity. You should choose sources that help you find relevant sites and properly evaluate them before placement.
Marketplaces
Link marketplaces are one of the fastest ways to find donors. They let you filter sites by topic, traffic, metrics, and other parameters, which saves significant time.
Plus, working with marketplaces is more cost-effective in terms of your specialist’s time usage. In our article Outreach VS Marketplace we broke down the math of the process.
Analyzing competitors’ profiles
One of the most effective methods is studying where your competitors get their links from. If a site is already ranking in the top results, that means its link profile is most likely working. Using tools like Ahrefs or Semrush, you can find sites that link to competitors, assess the quality of those donors, and replicate or improve their strategy.
Niche forums, blogs, platforms
Manual donor search through forums, blogs, and media remains relevant, especially for getting more natural links. Here you can find sites through search and topical communities, negotiate placement directly, and get more “live” links within the content.
Conclusions
Before choosing link donors, it’s important to develop a systematic approach to link building. Donors should be evaluated based on a combination of factors, the context of placement should be taken into account, and the result should be regularly analyzed. At the same time, it’s important to remember that links don’t work on their own, but in combination with content, the site’s technical condition, and the overall SEO strategy.
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