https://abs.twimg.com/emoji/v2/... draggable="false" alt="⚠️" title="Warnsignal" aria-label="Emoji: Warnsignal">Backlink comparison between @Moz, @ahrefs, @sistrix, @semrush, and @Majestic based on 100 large Europeanhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🇪🇺" title="Flagge der Europäischen Union" aria-label="Emoji: Flagge der Europäischen Union"> domains. Thread!https://abs.twimg.com/emoji/v2/... draggable="false" alt="⚠️" title="Warnsignal" aria-label="Emoji: Warnsignal">
1/10

I recently compared backlink data for 100 large UShttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🇺🇸" title="Flagge der Vereinigten Staaten" aria-label="Emoji: Flagge der Vereinigten Staaten"> domains. Now I did the same for 34 large domains from Germanyhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🇩🇪" title="Flagge von Deutschland" aria-label="Emoji: Flagge von Deutschland"> and 33 each from the UKhttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🇬🇧" title="Flagge des Vereinigten Königreiches" aria-label="Emoji: Flagge des Vereinigten Königreiches"> and Francehttps://abs.twimg.com/emoji/v2/... draggable="false" alt="🇫🇷" title="Flagge von Frankreich" aria-label="Emoji: Flagge von Frankreich">. These are the results:
2/10

When it comes to the number of referring domains, @Moz is clearly in the lead. On average, Moz finds 98% of whatever is the maximum for each domain across all tools.https://abs.twimg.com/emoji/v2/... draggable="false" alt="🔥" title="Feuer" aria-label="Emoji: Feuer">
3/10

@ahrefs, @sistrix, and @semrush are doing quite good as well with 70% to 74%.

@Majestic is a bit worse with 59%. :-(

4/10

The correlation for domain-pop is very high with values between 0.94 and 0.99 amongst all tools.

This means that all tools will give similar impressions and trends when comparing multiple domains.

5/10

For the sheer number of links, @ahrefs is the clear winner at 70% - followed by @Moz and @semrush at around 63% each.

@sistrix drops all the way to the bottom with 20% - a sign of very efficient crawling that prioritizes domain-popularity over link-popularity.https://abs.twimg.com/emoji/v2/... draggable="false" alt="🤓" title="Nerd-Gesicht" aria-label="Emoji: Nerd-Gesicht">

6/10

When ignoring @ahrefs, backlink counts are correlated with 0.79 to 0.93 amongst all other tools.

With ahrefs, there is basically no correlation to what the other tools are reporting.https://abs.twimg.com/emoji/v2/... draggable="false" alt="😕" title="Verwirrtes Gesicht" aria-label="Emoji: Verwirrtes Gesicht">

7/10

With the PageRank Replacement Scores, there is a lot of agreement between Domain Authority (DA) from Moz, Authority Score (AS) from SEMrush and Domain Rating (DR) from ahrefs.

Citation Flow from Majestic is all over the place.

8/10

Here is the link to the original study performed with 100 US domains: https://www.linkedin.com/pulse/backlink-tool-test-malte-landwehr/
9/10">https://www.linkedin.com/pulse/bac...

And if you speak German, you might be interested in the results for 100 small German websites: https://www.facebook.com/landwehr/posts/10158508292144380
10/10">https://www.facebook.com/landwehr/...