Domain authority
github.com domain authority
github.com has a domain authority score of 87 out of 100 (very high), based on 766,286 referring domains and a web graph rank of 26 among 133 million domains; its traffic rank is Top 1K websites (Chrome).
All metrics for github.com
| Authority score | 87 / 100 |
|---|---|
| Referring domains | 766,286 |
| Web graph rank (harmonic centrality) | #26 (top 0.01%) |
| PageRank position | #21 |
| Subdomains seen in the crawl | 5,953 |
| Majestic Million rank | #10 |
| Majestic referring subnets / IPs | 254,323 / 639,429 |
| Traffic rank | Top 1K websites (Chrome) |
| Position by authority in our top 20,000 | #39 |
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 89.2 (web graph rank 26 of 133,241,980), link part 84.1 (766,286 referring domains), average 86.6, rounded to 87.
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 |
|---|---|---|---|---|---|
| 35 | wordpress.com | 87 | 1,144,441 | 32 | Top 50K websites (Chrome) |
| 36 | amazonaws.com | 87 | 1,043,459 | 36 | Top 50K websites (Chrome) |
| 37 | unpkg.com | 87 | 992,997 | 43 | Top 500K websites (Chrome) |
| 38 | spotify.com | 87 | 848,039 | 29 | Top 1K websites (Chrome) |
| 40 | godaddy.com | 86 | 1,482,872 | 136 | Top 10K websites (Chrome) |
| 41 | bootstrapcdn.com | 86 | 1,322,665 | 110 | not in Chrome's top 1M |
| 42 | t.me | 86 | 1,026,876 | 50 | Top 1K websites (Chrome) |
| 43 | yandex.ru | 86 | 991,279 | 73 | Top 5K websites (Chrome) |
Tech stack
github.com is built with Hotwire Turbo and Contentful (detected from the public home page). Full tech stack of github.com →
AI crawler policy
AI crawler policy: Blocks training only. GPTBot is partially blocked, ClaudeBot is partially blocked and PerplexityBot is partially blocked in its robots.txt (checked 2026-10-02). Does github.com block GPTBot? →
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FAQ
- What is the domain authority of github.com?
- github.com has a domain authority score of 87 out of 100 (very high), based on 766,286 referring domains and a web graph rank of 26 among 133 million domains; its traffic rank is Top 1K 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 github.com have?
- github.com is linked to from 766,286 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 github.com rank among all websites?
- Its web graph rank (harmonic centrality) is 26 out of 133,241,980 ranked domains, which puts it in the top 0.01%. Its PageRank position is 21. Majestic Million ranks it #10.
- Is the github.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.