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Who links to icnf.pt?
1,927 domains link to icnf.pt 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 · 1,927 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 | nih.gov | 673,479 |
| 6 | wikimedia.org | 369,850 |
| 7 | wixsite.com | 340,110 |
| 8 | outlook.com | 233,817 |
| 9 | mdpi.com | 133,989 |
| 10 | frontiersin.org | 127,317 |
| 11 | constantcontact.com | 90,893 |
| 12 | sueddeutsche.de | 44,980 |
| 13 | corriere.it | 35,132 |
| 14 | lonelyplanet.com | 30,437 |
| 15 | atlassian.net | 20,668 |
| 16 | wikidata.org | 20,546 |
| 17 | euractiv.com | 20,423 |
| 18 | google.pt | 19,187 |
| 19 | sapo.pt | 18,245 |
| 20 | fsc.org | 16,567 |
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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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