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Who links to b-tu.de?
1,944 domains link to b-tu.de in the latest Common Crawl web graph (Aug-Oct 2026). Below are the 20 strongest. Strength is how many domains link to that referrer.
Common Crawl graph cc-main-2026-aug-sep-oct · read 2026-10-23 · 1,944 referring domains
Strongest referring domains
| # | Referring domain | Domains linking to it |
|---|---|---|
| 1 | google.com | 15,904,056 |
| 2 | wikipedia.org | 2,226,572 |
| 3 | europa.eu | 1,227,455 |
| 4 | blogspot.com | 880,829 |
| 5 | github.io | 464,772 |
| 6 | wikimedia.org | 369,850 |
| 7 | wixsite.com | 340,110 |
| 8 | linktr.ee | 271,096 |
| 9 | wiley.com | 229,204 |
| 10 | mdpi.com | 133,989 |
| 11 | weforum.org | 110,869 |
| 12 | ieee.org | 74,758 |
| 13 | notion.site | 63,027 |
| 14 | cam.ac.uk | 55,185 |
| 15 | acm.org | 53,426 |
| 16 | zeit.de | 43,813 |
| 17 | ucsd.edu | 43,665 |
| 18 | illinois.edu | 42,387 |
| 19 | cmu.edu | 40,798 |
| 20 | umd.edu | 36,975 |
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Method and limits
Source: Common Crawl's public domain web graph, built from three monthly crawls (134,979,706 domains, 1,817,202,146 links). We count distinct linking domains, not pages, and do not use any third-party backlink index. Common Crawl samples the web, so counts are lower than a full index such as Ahrefs or Semrush; use them to compare sites and spot big referrers, not as an exact total. Updated each quarter, last graph: cc-main-2026-aug-sep-oct. Nofollow and link position are not in this data.
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