- Link Authority: 59/100 (strong, high confidence).
- Web graph rank: #2,045 of 134,979,706 domains, the top 0.0016% of all domains.
- 23,832 linking domains counted in MrKeyword data.
- 128 hostnames under edx.org in the web graph.
- 30th of 31 reference, research and education on MrKeyword's list.
What is edx.org's domain authority?
edx.org has a MrKeyword Link Authority of 59/100, a strong score. The score comes from where edx.org sits in MrKeyword's web graph (August–October 2026): it is #2,045 of 134,979,706 domains by PageRank, and Link Authority places that position on a 0–100 log curve, so the strongest domain scores 100.
This is MrKeyword's own metric, not Moz DA or Ahrefs DR (how the domain authority scores differ); how Link Authority is calculated gives both formulas.
How many websites link to edx.org?
23,832 different domains link to edx.org in MrKeyword's data, counting each linking website once however many links it has. That is the number SEO tools call referring domains. The web graph also lists 128 hostnames under edx.org (subdomains such as www or blog count separately).
To see individual linking websites and anchor text, open the free backlink checker for edx.org.
Which strong websites link to edx.org?
The strongest linking domain MrKeyword's web graph shows for edx.org is apple.com, with a Link Authority of 84. The table lists the 10 strongest by their own score.
Strongest domains linking to edx.org
| Linking domain | Link Authority | Web graph rank |
|---|---|---|
| apple.com | 84 | #20 |
| adobe.com | 80 | #41 |
| amazon.com | 79 | #48 |
| bing.com | 71 | #241 |
| atlassian.com | 70 | #294 |
| deloitte.com | 67 | #483 |
| canada.ca | 67 | #519 |
| cbsnews.com | 66 | #543 |
| buffer.com | 64 | #790 |
| asana.com | 62 | #1,140 |
9 of the 10 strongest linking domains have a profile on MrKeyword's list too (apple.com, adobe.com, amazon.com, bing.com, atlassian.com, canada.ca, cbsnews.com, buffer.com, asana.com). None of them is in edx.org's own group, reference, research and education.
How does edx.org compare with similar websites?
edx.org is 30th of 31 reference, research and education on MrKeyword's list by Link Authority, with 3 neighbours above it in the table below. The median Link Authority of those 31 reference, research and education is 66, so edx.org is 7 points below it.
edx.org and its nearest peers
| Website | Link Authority | Web graph rank | Linking domains |
|---|---|---|---|
| merriam-webster.com | 61 | #1,544 | 71,050 |
| wikihow.com | 60 | #1,759 | 73,336 |
| khanacademy.org | 60 | #1,883 | 40,175 |
| edx.org | 59 | #2,045 | 23,832 |
| dictionary.com | 59 | #2,113 | 28,725 |
See every profiled site on the domain authority list of popular websites, or compare your own site with any of these in the free domain authority checker.
What does a Link Authority of 59 mean?
A Link Authority of 59 is strong: above the great majority of websites. This is the band where links from well-known publications and institutions make the biggest difference. In plain numbers, edx.org is in the top 0.0016% of the 134,979,706 domains in the web graph.
To raise your own site's score, read how to increase domain authority; for the domains at the very top, see the most-linked websites of 2026. The authority list explains why the 0–100 scale is logarithmic.
Where does edx.org's data come from?
Every number on edx.org's profile is read from MrKeyword's web graph (August–October 2026). This version uses data imported on 31 October 2026. How MrKeyword collects and labels this data.