facebook.com vs linkedin.com: domain authority
facebook.com has the higher authority score (100 vs 95) and facebook.com has 2.4 times as many referring domains. Both are among the highest-authority social sites in our data (2026-10-03).
| Metric | facebook.com | linkedin.com |
|---|---|---|
| Authority score (0-100) | 100 | 95 |
| Referring domains | 17,350,383 | 7,305,182 |
| Web graph rank | #1 | #9 |
| PageRank position | #3 | #11 |
| Majestic Million rank | #2 | #6 |
| Traffic rank | Top 1K websites (Chrome) | Top 1K websites (Chrome) |
Bold = the stronger value. Ranks: lower is better.
Tech stack and AI crawler policy
| facebook.com | linkedin.com | |
|---|---|---|
| Tech stack | – | Cloudflare |
| AI crawler policy | Blocks some AI search; GPTBot partially blocked | Blocks some AI search; GPTBot blocked |
More facebook.com comparisons
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.
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.
FAQ
- Which has higher domain authority, facebook.com or linkedin.com?
- facebook.com has the higher authority score (100 vs 95) and facebook.com has 2.4 times as many referring domains. Both are among the highest-authority social sites in our data (2026-10-03). Scores are from our open-data metric (0-100), not Moz DA or Ahrefs DR.
- How many referring domains do facebook.com and linkedin.com have?
- facebook.com has 17,350,383 referring domains and linkedin.com has 7,305,182 in the Common Crawl web graph (release cc-main-2026-jul-aug-sep).