Domain authority
tcf.org domain authority
tcf.org has a domain authority score of 58 out of 100 (moderate), based on 3,809 referring domains and a web graph rank of 14,804 among 133 million domains.
All metrics for tcf.org
| Authority score | 58 / 100 |
|---|---|
| Referring domains | 3,809 |
| Web graph rank (harmonic centrality) | #14,804 (top 0.02%) |
| PageRank position | #31,126 |
| Subdomains seen in the crawl | 8 |
| Majestic Million rank | #16,810 |
| Majestic referring subnets / IPs | 2,539 / 4,839 |
| Traffic rank | not in Chrome's top 1M |
| Position by authority in our top 20,000 | #11,034 |
Top referring domains of tcf.org
These are the 10 best-connected websites that link to tcf.org in the Common Crawl domain-level web graph (release cc-main-2026-jul-aug-sep, updated quarterly). tcf.org has 3,809 referring domains in total; 2,557 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 | google.com | 98 | Top 1K (Chrome) |
| 2 | apple.com | 91 | Top 1K (Chrome) |
| 3 | wikipedia.org | 91 | Top 1K (Chrome) |
| 4 | europa.eu | 88 | Top 50K (Chrome) |
| 5 | blogspot.com | 86 | Top 50K (Chrome) |
| 6 | bit.ly | 86 | Top 1K (Chrome) |
| 7 | github.io | 84 | Top 50K (Chrome) |
| 8 | medium.com | 84 | Top 5K (Chrome) |
| 9 | nih.gov | 85 | Top 5K (Chrome) |
| 10 | statista.com | 80 | Top 100K (Chrome) |
Domain-level data: each row is a whole domain that links to tcf.org 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 tcf.org
tcf.org is not in Chrome's global top 1M websites in August 2026, but is listed in 4 countries.
Top countries
| Country | Chrome rank in that country |
|---|---|
| United States | Top 500K |
| United Kingdom | Top 1M |
| Canada | Top 1M |
| Yemen | Top 50K |
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 64.9 (web graph rank 14,804 of 133,241,980), link part 51.2 (3,809 referring domains), average 58.0, rounded to 58.
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 |
|---|---|---|---|---|---|
| 11,030 | stateline.org | 58 | 3,815 | 14,295 | not in Chrome's top 1M |
| 11,031 | australia.gov.au | 58 | 3,815 | 15,973 | not in Chrome's top 1M |
| 11,032 | thinkadvisor.com | 58 | 3,812 | 12,859 | not in Chrome's top 1M |
| 11,033 | truthdig.com | 58 | 3,812 | 13,054 | not in Chrome's top 1M |
| 11,035 | continental.com | 58 | 3,807 | 12,289 | Top 500K websites (Chrome) |
| 11,036 | stem.org.uk | 58 | 3,806 | 14,148 | not in Chrome's top 1M |
| 11,037 | mopo.de | 58 | 3,806 | 16,302 | Top 10K websites (Chrome) |
| 11,038 | hacettepe.edu.tr | 58 | 3,802 | 15,361 | Top 500K websites (Chrome) |
Compare and browse
FAQ
- What is the domain authority of tcf.org?
- tcf.org has a domain authority score of 58 out of 100 (moderate), based on 3,809 referring domains and a web graph rank of 14,804 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 tcf.org have?
- tcf.org is linked to from 3,809 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 tcf.org rank among all websites?
- Its web graph rank (harmonic centrality) is 14,804 out of 133,241,980 ranked domains, which puts it in the top 0.02%. Its PageRank position is 31,126. Majestic Million ranks it #16,810.
- Is the tcf.org 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 tcf.org?
- The best-connected referring domains of tcf.org in the Common Crawl web graph (release cc-main-2026-jul-aug-sep) are google.com, apple.com, wikipedia.org, europa.eu and blogspot.com. This is a domain-level list from a quarterly crawl, so it names whole domains that link to tcf.org, not individual backlinks, and it is not complete.
- What is the traffic rank of tcf.org?
- tcf.org is not in Chrome's global top 1M websites in August 2026 (Chrome UX Report).