Domain authority
coi.cz domain authority
coi.cz has a domain authority score of 55 out of 100 (moderate), based on 16,130 referring domains and a web graph rank of 402,636 among 133 million domains.
All metrics for coi.cz
| Authority score | 55 / 100 |
|---|---|
| Referring domains | 16,130 |
| Web graph rank (harmonic centrality) | #402,636 (top 0.31%) |
| PageRank position | #4,363 |
| Subdomains seen in the crawl | 11 |
| Majestic Million rank | #14,803 |
| Majestic referring subnets / IPs | 2,740 / 6,192 |
| Traffic rank | not in Chrome's top 1M |
| Position by authority in our top 20,000 | #17,370 |
Top referring domains of coi.cz
These are the 10 best-connected websites that link to coi.cz in the Common Crawl domain-level web graph (release cc-main-2026-jul-aug-sep, updated quarterly). coi.cz has 16,130 referring domains in total; 1,619 of them are among the 5,000,000 best-connected domains of the graph, which are the ones we can list and rank here.
| # | Referring domain | Authority | Traffic rank |
|---|---|---|---|
| 1 | apple.com | 91 | Top 1K (Chrome) |
| 2 | europa.eu | 88 | Top 50K (Chrome) |
| 3 | cloudfront.net | 87 | Top 50K (Chrome) |
| 4 | blogspot.com | 86 | Top 50K (Chrome) |
| 5 | wixsite.com | 82 | Top 500K (Chrome) |
| 6 | netlify.app | 77 | Top 500K (Chrome) |
| 7 | jetbrains.com | 72 | Top 50K (Chrome) |
| 8 | teachable.com | 73 | Top 500K (Chrome) |
| 9 | vercel.app | 74 | Top 50K (Chrome) |
| 10 | run.app | 66 | Top 500K (Chrome) |
Domain-level data: each row is a whole domain that links to coi.cz at least once somewhere on its site, not a single backlink or page, and no anchor text or link type is included. Common Crawl samples the public web, so a link can be missing and commercial backlink tools will show more.
Traffic rank of coi.cz
coi.cz is not in any Chrome top list (global or country) in August 2026.
Source: Chrome UX Report (Google, CC BY 4.0), the monthly popularity lists of origins by real Chrome page loads. A rank is a bucket, not an exact position: "Top 10K" means among the 10,000 most visited origins. It measures reach in Chrome, not visits, so it is not Similarweb traffic. Rank lists by country: Traffic rank by country.
How the authority score is calculated
The score is the average of two parts, each from 0 to 100:
- Rank part:
100 × (1 − log10(rank) / log10(N))^0.6, where rank is the domain's harmonic centrality position in the Common Crawl web graph (how close it is to every other domain through links) and N is the number of ranked domains (133,241,980). - Link part:
100 × log10(1 + referring domains) / 7, so 10 million referring domains = 100.
For this domain: rank part 49.5 (web graph rank 402,636 of 133,241,980), link part 60.1 (16,130 referring domains), average 54.8, rounded to 55.
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
| # | Domain | Authority | Referring domains | Web graph rank | Traffic rank |
|---|---|---|---|---|---|
| 17,366 | themerex.net | 55 | 16,340 | 392,619 | not in Chrome's top 1M |
| 17,367 | thewrap.com | 55 | 16,231 | 387,359 | Top 50K websites (Chrome) |
| 17,368 | creativethemes.com | 55 | 16,165 | 392,881 | Top 500K websites (Chrome) |
| 17,369 | supsystic.com | 55 | 16,143 | 394,933 | not in Chrome's top 1M |
| 17,371 | extendthemes.com | 55 | 16,071 | 408,905 | not in Chrome's top 1M |
| 17,372 | readwrite.com | 55 | 15,905 | 385,913 | not in Chrome's top 1M |
| 17,373 | dwcdn.net | 55 | 15,884 | 385,805 | not in Chrome's top 1M |
| 17,374 | sg-host.com | 55 | 15,862 | 389,370 | not in Chrome's top 1M |
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FAQ
- What is the domain authority of coi.cz?
- coi.cz has a domain authority score of 55 out of 100 (moderate), based on 16,130 referring domains and a web graph rank of 402,636 among 133 million domains. The score is our own open-data metric (0-100) and is not Moz Domain Authority or Ahrefs Domain Rating.
- How many backlinks does coi.cz have?
- coi.cz is linked to from 16,130 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 coi.cz rank among all websites?
- Its web graph rank (harmonic centrality) is 402,636 out of 133,241,980 ranked domains, which puts it in the top 0.31%. Its PageRank position is 4,363. Majestic Million ranks it #14,803.
- Is the coi.cz 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.
- Which websites link to coi.cz?
- The best-connected referring domains of coi.cz in the Common Crawl web graph (release cc-main-2026-jul-aug-sep) are apple.com, europa.eu, cloudfront.net, blogspot.com and wixsite.com. This is a domain-level list from a quarterly crawl, so it names whole domains that link to coi.cz, not individual backlinks, and it is not complete.
- What is the traffic rank of coi.cz?
- coi.cz is not in Chrome's global top 1M websites in August 2026 (Chrome UX Report).