- Link Authority: 68/100 (very strong, high confidence).
- Web graph rank: #431 of 134,979,706 domains, the top 0.001% of all domains.
- 131,744 linking domains counted in MrKeyword data.
- 151 hostnames under irs.gov in the web graph.
- 8th of 20 government and international bodies on MrKeyword's list.
What is irs.gov's domain authority?
irs.gov has a MrKeyword Link Authority of 68/100, a very strong score. The score comes from where irs.gov sits in MrKeyword's web graph (August–October 2026): it is #431 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 irs.gov?
131,744 different domains link to irs.gov 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 151 hostnames under irs.gov (subdomains such as www or blog count separately).
To see individual linking websites and anchor text, open the free backlink checker for irs.gov.
Which strong websites link to irs.gov?
The strongest linking domain MrKeyword's web graph shows for irs.gov is apple.com, with a Link Authority of 84. The table lists the 10 strongest by their own score.
Strongest domains linking to irs.gov
| Linking domain | Link Authority | Web graph rank |
|---|---|---|
| apple.com | 84 | #20 |
| adobe.com | 80 | #41 |
| amazon.com | 79 | #48 |
| dropbox.com | 75 | #111 |
| bing.com | 71 | #241 |
| atlassian.com | 70 | #294 |
| businessinsider.com | 68 | #394 |
| deloitte.com | 67 | #483 |
| canada.ca | 67 | #519 |
| cbsnews.com | 66 | #543 |
9 of the 10 strongest linking domains have a profile on MrKeyword's list too (apple.com, adobe.com, amazon.com, dropbox.com, bing.com, atlassian.com, businessinsider.com, canada.ca, cbsnews.com). 1 of them is in irs.gov's own group, government and international bodies.
How does irs.gov compare with similar websites?
irs.gov is 8th of 20 government and international bodies on MrKeyword's list by Link Authority, with 2 neighbours above it in the table below. The median Link Authority of those 20 government and international bodies is 67, so irs.gov is 1 point above it.
irs.gov and its nearest peers
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 68 mean?
A Link Authority of 68 is very strong: far ahead of almost every other website. Domains at this level are linked from a very wide spread of other sites; gaining more points usually takes links from other very strong domains. In plain numbers, irs.gov is in the top 0.001% 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 irs.gov's data come from?
Every number on irs.gov'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.