Domain authority
nine.com.au domain authority
nine.com.au has a domain authority score of 62 out of 100 (above average for a business website), based on 7,122 referring domains and a web graph rank of 5,377 among 133 million domains; its traffic rank is Top 5K websites (Chrome).
All metrics for nine.com.au
| Authority score | 62 / 100 |
|---|---|
| Referring domains | 7,122 |
| Web graph rank (harmonic centrality) | #5,377 (top 0.01%) |
| PageRank position | #5,779 |
| Subdomains seen in the crawl | 58 |
| Majestic Million rank | #3,121 |
| Majestic referring subnets / IPs | 7,301 / 16,049 |
| Traffic rank | Top 5K websites (Chrome) |
| Position by authority in our top 20,000 | #5,264 |
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 69.2 (web graph rank 5,377 of 133,241,980), link part 55.0 (7,122 referring domains), average 62.1, rounded to 62.
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 |
|---|---|---|---|---|---|
| 5,260 | dokuwiki.org | 62 | 7,159 | 4,578 | not in Chrome's top 1M |
| 5,261 | ppc.go.jp | 62 | 7,151 | 5,637 | Top 500K websites (Chrome) |
| 5,262 | trust.org | 62 | 7,145 | 5,643 | not in Chrome's top 1M |
| 5,263 | rtp.pt | 62 | 7,124 | 4,901 | Top 10K websites (Chrome) |
| 5,265 | merck.com | 62 | 7,119 | 7,078 | Top 500K websites (Chrome) |
| 5,266 | pretix.eu | 62 | 7,115 | 6,716 | Top 100K websites (Chrome) |
| 5,267 | stat.gov.pl | 62 | 7,113 | 5,476 | Top 500K websites (Chrome) |
| 5,268 | talkingpointsmemo.com | 62 | 7,111 | 6,274 | Top 500K websites (Chrome) |
Tech stack
nine.com.au is built with Google Tag Manager (detected from the public home page).
AI crawler policy
AI crawler policy: Blocks some AI search. GPTBot is blocked, ClaudeBot is blocked and PerplexityBot is blocked in its robots.txt (checked 2026-10-02). Does nine.com.au block GPTBot? →
Compare and browse
FAQ
- What is the domain authority of nine.com.au?
- nine.com.au has a domain authority score of 62 out of 100 (above average for a business website), based on 7,122 referring domains and a web graph rank of 5,377 among 133 million domains; its traffic rank is Top 5K 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 nine.com.au have?
- nine.com.au is linked to from 7,122 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 nine.com.au rank among all websites?
- Its web graph rank (harmonic centrality) is 5,377 out of 133,241,980 ranked domains, which puts it in the top 0.01%. Its PageRank position is 5,779. Majestic Million ranks it #3,121.
- Is the nine.com.au 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.