CitedBy / Backlinks / heidelberg.de
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Who links to heidelberg.de?
2,704 domains link to heidelberg.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 · 2,704 referring domains
Strongest referring domains
| # | Referring domain | Domains linking to it |
|---|---|---|
| 1 | google.com | 15,904,056 |
| 2 | wikipedia.org | 2,226,572 |
| 3 | blogspot.com | 880,829 |
| 4 | wikimedia.org | 369,850 |
| 5 | wixsite.com | 340,110 |
| 6 | outlook.com | 233,817 |
| 7 | un.org | 191,314 |
| 8 | openstreetmap.org | 126,378 |
| 9 | weforum.org | 110,869 |
| 10 | myportfolio.com | 108,148 |
| 11 | airbnb.com | 80,483 |
| 12 | azurewebsites.net | 49,395 |
| 13 | nrw.de | 39,470 |
| 14 | utah.edu | 32,555 |
| 15 | archdaily.com | 30,002 |
| 16 | mpg.de | 28,415 |
| 17 | fraunhofer.de | 27,933 |
| 18 | fastly.net | 23,955 |
| 19 | ihk.de | 23,318 |
| 20 | hessen.de | 22,412 |
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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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