Domain authority
fastly.com domain authority
fastly.com has a domain authority score of 64 out of 100 (above average for a business website), based on 4,901 referring domains and a web graph rank of 1,034 among 133 million domains; its traffic rank is Top 500K websites (Chrome).
64 / 100
4,901
referring domains (backlinks from other domains)
#1,034
web graph rank of 133,241,980 domains
Top 500K
Chrome real-user traffic bucket
All metrics for fastly.com
| Authority score | 64 / 100 |
|---|---|
| Referring domains | 4,901 |
| Web graph rank (harmonic centrality) | #1,034 (top 0.01%) |
| PageRank position | #85 |
| Subdomains seen in the crawl | 30 |
| Majestic Million rank | #3,155 |
| Majestic referring subnets / IPs | 7,238 / 12,786 |
| Traffic rank | Top 500K websites (Chrome) |
| Position by authority in our top 20,000 | #3,670 |
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 75.7 (web graph rank 1,034 of 133,241,980), link part 52.7 (4,901 referring domains), average 64.2, 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
| # | Domain | Authority | Referring domains | Web graph rank | Traffic rank |
|---|---|---|---|---|---|
| 3,666 | batchgeo.com | 64 | 5,189 | 1,156 | Top 1M websites (Chrome) |
| 3,667 | boell.org | 64 | 5,114 | 1,191 | not in Chrome's top 1M |
| 3,668 | cian.ru | 64 | 5,013 | 1,200 | Top 50K websites (Chrome) |
| 3,669 | er.ru | 64 | 4,991 | 1,267 | Top 500K websites (Chrome) |
| 3,671 | quia.com | 64 | 4,868 | 1,256 | Top 50K websites (Chrome) |
| 3,672 | evenue.net | 64 | 4,819 | 914 | Top 500K websites (Chrome) |
| 3,673 | iiss.org | 64 | 4,786 | 993 | Top 1M websites (Chrome) |
| 3,674 | sho.com | 64 | 4,760 | 870 | not in Chrome's top 1M |
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FAQ
- What is the domain authority of fastly.com?
- fastly.com has a domain authority score of 64 out of 100 (above average for a business website), based on 4,901 referring domains and a web graph rank of 1,034 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 fastly.com have?
- fastly.com is linked to from 4,901 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 fastly.com rank among all websites?
- Its web graph rank (harmonic centrality) is 1,034 out of 133,241,980 ranked domains, which puts it in the top 0.01%. Its PageRank position is 85. Majestic Million ranks it #3,155.
- Is the fastly.com 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.