CitedBy / Backlinks / opoka.org.pl
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Who links to opoka.org.pl?
2,743 domains link to opoka.org.pl 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 · 2,743 referring domains
Strongest referring domains
| # | Referring domain | Domains linking to it |
|---|---|---|
| 1 | wikipedia.org | 2,226,572 |
| 2 | blogspot.com | 880,829 |
| 3 | nih.gov | 673,479 |
| 4 | github.io | 464,772 |
| 5 | weebly.com | 456,220 |
| 6 | wikimedia.org | 369,850 |
| 7 | wixsite.com | 340,110 |
| 8 | harvard.edu | 268,680 |
| 9 | vercel.app | 102,669 |
| 10 | free.fr | 100,713 |
| 11 | wiktionary.org | 51,808 |
| 12 | google.pl | 46,288 |
| 13 | lonelyplanet.com | 30,437 |
| 14 | ovh.net | 23,315 |
| 15 | krakow.pl | 21,590 |
| 16 | wikidot.com | 20,683 |
| 17 | wikidata.org | 20,546 |
| 18 | eu.org | 20,237 |
| 19 | home.pl | 17,510 |
| 20 | wikiquote.org | 16,803 |
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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. Adult-content domains are left out of the list, so a page can show fewer than 20. Spam and link-network domains are shown as they are.
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