Website trust is an overall assessment of a site’s authority and “cleanliness” in the eyes of search engines: a quality link profile, real organic traffic, a topical reputation, and no spam. You can check a donor’s trust before buying a link in 15–20 minutes using 12 criteria, from organic traffic and DR and Trust Flow metrics to signs of a network or a “dead” site. Below is a working checklist with the tools and benchmark for each item.
Key points in 30 seconds
- Trust is not one number but a sum of signals: traffic, link profile, topic, and freedom from spam.
- Relying on a single metric (for example, DR alone) is risky: it’s easy to inflate.
- The main marker of a living site is real organic traffic from your geo.
- Signs of a network/PBN or a “dead” site rule out a donor immediately, whatever its metrics.
- The 12 criteria below cover the check in most cases.
What website trust is and why it’s not a single metric
Google has no public “trust” score. What the market calls trust is a composite assessment of how far a site can be trusted as a source and as a link donor. It’s made up of link profile authority, the volume and stability of organic traffic, topical reputation, and the absence of spam signals.
Popular metrics such as Domain Rating (DR) from Ahrefs, Domain Authority (DA) from Moz, and Trust Flow from Majestic are third-party estimates, not Google’s. Each of them can be partly inflated, so you can’t rely on one number. A healthy donor passes several criteria at once, and that’s what we’ll go through.
12 criteria for checking a donor (checklist)
Go through every item before placing a link. If a donor fails even one of the “stop criteria” (traffic, spam score, network signs), it’s better to drop the site, even if the rest of its metrics look good.
| # | Criterion | How to check | Benchmark (guideline) |
| 1 | Organic traffic | Ahrefs, Serpstat, Semrush | Stable or growing, not zero; traffic from your region |
| 2 | Domain Rating / DA | Ahrefs, Moz | Relative to the niche: 20+ for crowd links, higher for outreach; compare with the donor’s competitors |
| 3 | Trust Flow / Citation Flow | Majestic | TF 10+; TF/CF ratio of at least 0.5 |
| 4 | Domain spam score | Moz Spam Score, Semrush toxicity | Spam Score < 30%, low toxicity |
| 5 | Referring domains | Ahrefs (Referring domains) | Natural, diverse growth with no spikes from link farms |
| 6 | Topical relevance | Manual review + traffic keywords | Topic close to yours or neutral and broad |
| 7 | Traffic geo and language | Ahrefs, Similarweb | Matches your target region and language |
| 8 | Google indexing | site: operator | Pages are indexed, no traces of manual actions |
| 9 | Outbound link volume | Ahrefs, manual review | Not overloaded with external dofollow links; no batches of “sponsored” labels |
| 10 | Content quality and freshness | Manual review | Unique, updated, not mass-generated |
| 11 | Traffic history and trend | Ahrefs (chart), Wayback Machine | No sharp drops (signs of a penalty); the topic hasn’t changed over time (not a dropped domain) |
| 12 | Network signs (PBN) | WHOIS, hosting/IP, design | Different owners, hosting, and design; no cross-linking |
Organic traffic is the main marker
A site can have DR 40 and zero traffic at the same time. That almost always means links to it were bought, and the site itself is “dead” or under a penalty. Real organic traffic is harder to fake than DR, so look at it first, and specifically at traffic from your geo. A donor whose visitors come from another country is almost useless for a local project. Look not only at the absolute number but at the trend over the last 6–12 months: a flat or growing chart is more reliable than a recent sharp jump, which often points to manipulation or a seasonal spike.
Spam score and toxicity
A domain’s spam score shows how closely its profile resembles spam sites. A high value (for example, a Moz Spam Score above 30%) signals that the site sits next to questionable resources and may pass on negative signals. Also check the overall toxicity of the profile in Semrush. For more on reading DR, DA, Trust Flow, and spam score, see our separate breakdown of donor metrics.
Signs of a “dead” site
- Organic traffic is close to zero, or it crashed and never recovered.
- The latest posts are years old; the forum has no new messages.
- Comments are flooded with spam and there’s no moderation.
- Pages have dropped out of the index: the site: operator shows almost nothing.
- Broken links, outdated design, pages that hang.
A donor like this won’t pass link equity: the link either won’t get indexed or will quickly drop out of the index. The money spent on placement is wasted.
Signs of a network (PBN)
- The same template and design across a group of “different” sites.
- Close domain registration dates (check via WHOIS).
- A shared IP address or the same hosting.
- Cross-linking between supposedly independent resources.
- Thin, templated content with no author and no history.
One link from a network won’t kill your site, but if the network gets deindexed, you lose every link from it at once. We cover how to tell useful links from harmful ones in our article on links that hurt your site.
How to scale donor selection
Checking against 12 criteria is manual work: for every good site there are dozens rejected. Analyzing competitor backlinks and their donors helps you find candidates faster, and we cover the overall selection logic and the role of trust in strategy in our pillar article on link building. If you don’t have time to vet sites yourself, you can delegate this part when you buy crowd links: within our link building services, sites are checked against these same criteria before placement.
Want links only from vetted donors without spending weeks on manual selection? Tell us about your project and we’ll pick sites for your niche and geo, checked against all 12 criteria: calculate the cost of crowd links.
