TidyToolsDomain Authority Index · data of

Domain authority

copernicus.eu domain authority

copernicus.eu has a domain authority score of 64 out of 100 (above average for a business website), based on 12,431 referring domains and a web graph rank of 6,017 among 133 million domains; its traffic rank is Top 500K websites (Chrome).

64 / 100
12,431
referring domains (backlinks from other domains)
#6,017
web graph rank of 133,241,980 domains
Top 500K
Chrome real-user traffic bucket

All metrics for copernicus.eu

Authority score64 / 100
Referring domains12,431
Web graph rank (harmonic centrality)#6,017 (top 0.01%)
PageRank position#5,972
Subdomains seen in the crawl216
Majestic Million rank#2,519
Majestic referring subnets / IPs8,360 / 15,350
Traffic rankTop 500K websites (Chrome)
Position by authority in our top 20,000#3,299

How the authority score is calculated

The score is the average of two parts, each from 0 to 100:

For this domain: rank part 68.7 (web graph rank 6,017 of 133,241,980), link part 58.5 (12,431 referring domains), average 63.6, rounded to 64.

It is consistent across all 120 million domains in the data, so it is good for ranking and filtering lists. It is not Moz Domain Authority or Ahrefs Domain Rating. Referring domains count other domains that link to this one, not individual backlinks; no list of linking pages is included.

Domains with a similar authority score

#DomainAuthorityReferring domainsWeb graph rankTraffic rank
3,295capitalone.com6412,4444,856Top 5K websites (Chrome)
3,296mendeley.com6412,4424,781Top 100K websites (Chrome)
3,297tvtropes.org6412,4324,703Top 5K websites (Chrome)
3,298instyle.com6412,4314,442Top 10K websites (Chrome)
3,300christies.com6412,4194,906Top 100K websites (Chrome)
3,301mercedes-benz.com6412,4165,192Top 100K websites (Chrome)
3,302trip.com6412,4115,991Top 10K websites (Chrome)
3,303ukri.org6412,4084,607Top 500K websites (Chrome)

Tech stack

copernicus.eu is built with Drupal, jQuery, Slick, Matomo, jsDelivr and PHP (detected from the public home page). Full tech stack of copernicus.eu →

AI crawler policy

AI crawler policy: Open. GPTBot is allowed, ClaudeBot is allowed and PerplexityBot is allowed in its robots.txt (checked 2026-10-02). Does copernicus.eu block GPTBot? →

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FAQ

What is the domain authority of copernicus.eu?
copernicus.eu has a domain authority score of 64 out of 100 (above average for a business website), based on 12,431 referring domains and a web graph rank of 6,017 among 133 million domains; its traffic rank is Top 500K websites (Chrome). The score is our own open-data metric (0-100) and is not Moz Domain Authority or Ahrefs Domain Rating.
How many backlinks does copernicus.eu have?
copernicus.eu is linked to from 12,431 other domains in the Common Crawl web graph (release cc-main-2026-jul-aug-sep). This counts referring domains, not individual backlinks, and Common Crawl does not see the whole web, so commercial tools that crawl more will show larger numbers.
How does copernicus.eu rank among all websites?
Its web graph rank (harmonic centrality) is 6,017 out of 133,241,980 ranked domains, which puts it in the top 0.01%. Its PageRank position is 5,972. Majestic Million ranks it #2,519.
Is the copernicus.eu authority score the same as Moz DA or Ahrefs DR?
No. It is an independent score computed from open data (Common Crawl, Majestic Million, Chrome UX Report). It is consistent across all domains, so it works for comparing and filtering sites, but the numbers will not match the commercial tools.