Open Authority Rating
sciencealert.com
54/100
- Harmonic centrality rank
- #4,321
- PageRank rank
- #13,146
- Crawled hosts
- 12
- Crawl release
- cc-main-2026-aug-sep-oct
- Last computed
- Nov 10, 2026
Stronger than 99.99% of the 134,979,706 ranked domains (by harmonic centrality).
What 54 means
Top 0.01% of the web graph. Among the most linked-to domains on the web: global brands, platforms and major publishers.
Whether that is good depends on the sites you compete with. What counts as a good score · Compare with a competitor
What drives this score
OAR 54 adds up two positions in the cc-main-2026-aug-sep-oct link graph: harmonic centrality, worth up to 70 points, and PageRank, worth up to 30.
- Harmonic centrality rank #4,32138.7 of 70 points
- PageRank rank #13,14614.8 of 30 points
PageRank is the weaker signal here. It rises with the number and weight of links pointing at sciencealert.com, but it carries only 30% of the score, so harmonic centrality still moves OAR more.
Rank needed for a higher score
| OAR | Harmonic centrality rank (PageRank unchanged) | PageRank rank (harmonic centrality unchanged) |
|---|---|---|
| 55 | #3,307 or better | #7,044 or better |
| 59 | #1,134 or better | #580 or better |
| 64 | #297 or better | #25 or better |
Ranks are relative to each release, so a score can also move because the web around sciencealert.com changed. OAR describes position in the public link graph; it does not predict search rankings or traffic. How OAR is computed
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About this domain
Registration, hosting, and TLS facts haven’t been gathered for this domain yet. They are collected by a background check after the first visit — check back soon.
OAR across crawl releases
| Crawl release | OAR |
|---|---|
| cc-main-2026-apr-may-jun | 53 |
| cc-main-2026-may-jun-jul | 53 |
| cc-main-2026-jun-jul-aug | 53 |
| cc-main-2026-jul-aug-sep | 54 |
| cc-main-2026-aug-sep-oct | 54 |
Dashed marks are crawl releases where sciencealert.com wasn’t in the link graph; gaps are shown honestly, never interpolated. How to read this chart
Compare sciencealert.com with another domain
See both Open Authority Ratings and their trends side by side.