- Most-linked .org website: wordpress.org, with 2,780,782 linking domains (web graph rank #16, the top 0.001% of all domains).
- 181,505 .org domains rank in the web graph's top 2 million, 9.1% of those positions.
- Median Link Authority of the top 50: 67.
- 100 of the 100 rank in the web's top 10,000 domains.
- Data: MrKeyword's web graph (August–October 2026), imported 31 October 2026.
Which .org websites have the most links?
wordpress.org is the most-linked .org website in MrKeyword's web graph (August–October 2026), with 2,780,782 linking domains. Next come wikipedia.org (2,226,572) and mozilla.org (847,719). The table lists the top 100 .org domains by linking domains, the number of different websites that link to each, with each site's web graph rank and Link Authority.
The 100 most-linked .org websites
| # | Website | Linking domains | Web graph rank | Link Authority |
|---|---|---|---|---|
| 1 | wordpress.org | 2,780,782 | #16 | 85 |
| 2 | wikipedia.org | 2,226,572 | #36 | 81 |
| 3 | mozilla.org | 847,719 | #62 | 78 |
| 4 | archive.org | 386,557 | #124 | 74 |
| 5 | wikimedia.org | 369,850 | #197 | 72 |
| 6 | doi.org | 362,243 | #155 | 73 |
| 7 | creativecommons.org | 297,915 | #98 | 76 |
| 8 | w3.org | 227,599 | #71 | 77 |
| 9 | allaboutcookies.org | 226,803 | #222 | 71 |
| 10 | networkadvertising.org | 214,378 | #257 | 70 |
| 11 | ampproject.org | 209,470 | #160 | 73 |
| 12 | npr.org | 197,444 | #415 | 68 |
| 13 | un.org | 191,314 | #313 | 69 |
| 14 | mayoclinic.org | 162,888 | #807 | 64 |
| 15 | aboutcookies.org | 153,140 | #396 | 68 |
| 16 | hbr.org | 152,780 | #398 | 68 |
| 17 | sitemaps.org | 152,454 | #451 | 67 |
| 18 | bbb.org | 145,872 | #422 | 68 |
| 19 | arxiv.org | 138,952 | #287 | 70 |
| 20 | cleantalk.org | 130,447 | #456 | 67 |
| 21 | frontiersin.org | 127,317 | #618 | 66 |
| 22 | openstreetmap.org | 126,378 | #401 | 68 |
| 23 | apa.org | 124,532 | #597 | 66 |
| 24 | unesco.org | 122,935 | #714 | 65 |
| 25 | clevelandclinic.org | 115,091 | #1,079 | 63 |
| 26 | cambridge.org | 111,999 | #691 | 65 |
| 27 | userway.org | 111,756 | #473 | 67 |
| 28 | weforum.org | 110,869 | #528 | 67 |
| 29 | pbs.org | 109,436 | #1,002 | 63 |
| 30 | pewresearch.org | 97,349 | #299 | 70 |
| 31 | worldbank.org | 94,468 | #558 | 66 |
| 32 | oecd.org | 85,565 | #588 | 66 |
| 33 | plos.org | 85,504 | #811 | 64 |
| 34 | change.org | 81,810 | #1,112 | 63 |
| 35 | jstor.org | 78,612 | #1,088 | 63 |
| 36 | iso.org | 76,237 | #366 | 68 |
| 37 | telegram.org | 75,230 | #564 | 66 |
| 38 | ieee.org | 74,758 | #591 | 66 |
| 39 | orcid.org | 72,052 | #819 | 64 |
| 40 | apache.org | 71,191 | #109 | 75 |
| 41 | gnu.org | 69,164 | #371 | 68 |
| 42 | coursera.org | 67,695 | #1,320 | 62 |
| 43 | fao.org | 66,678 | #1,470 | 61 |
| 44 | pnas.org | 64,746 | #1,397 | 61 |
| 45 | science.org | 60,884 | #1,036 | 63 |
| 46 | hopkinsmedicine.org | 59,778 | #2,350 | 59 |
| 47 | gamblingtherapy.org | 57,551 | #713 | 65 |
| 48 | acs.org | 56,974 | #1,724 | 60 |
| 49 | heart.org | 56,475 | #1,608 | 61 |
| 50 | bookshop.org | 56,063 | #1,281 | 62 |
| 51 | unicef.org | 55,989 | #426 | 68 |
| 52 | ietf.org | 54,402 | #213 | 71 |
| 53 | acm.org | 53,426 | #145 | 73 |
| 54 | cancer.org | 53,108 | #2,311 | 59 |
| 55 | nejm.org | 52,576 | #2,121 | 59 |
| 56 | wiktionary.org | 51,808 | #1,220 | 62 |
| 57 | aarp.org | 51,218 | #1,638 | 60 |
| 58 | matomo.org | 51,052 | #323 | 69 |
| 59 | consumerreports.org | 50,158 | #2,095 | 59 |
| 60 | sciencemag.org | 49,874 | #1,388 | 61 |
| 61 | imf.org | 49,394 | #1,170 | 62 |
| 62 | python.org | 48,994 | #403 | 68 |
| 63 | begambleaware.org | 46,510 | #671 | 65 |
| 64 | iea.org | 45,889 | #1,230 | 62 |
| 65 | finra.org | 43,686 | #1,674 | 60 |
| 66 | ohchr.org | 43,130 | #463 | 67 |
| 67 | nginx.org | 42,927 | #148 | 73 |
| 68 | semanticscholar.org | 42,813 | #1,234 | 62 |
| 69 | redcross.org | 41,836 | #1,811 | 60 |
| 70 | altervista.org | 41,137 | #3,245 | 57 |
| 71 | ilo.org | 40,903 | #1,315 | 62 |
| 72 | khanacademy.org | 40,175 | #1,883 | 60 |
| 73 | moodle.org | 40,114 | #643 | 65 |
| 74 | sleepfoundation.org | 39,511 | #4,452 | 55 |
| 75 | unep.org | 38,908 | #2,020 | 59 |
| 76 | undp.org | 38,572 | #1,373 | 61 |
| 77 | mathjax.org | 37,644 | #2,466 | 58 |
| 78 | hrw.org | 37,636 | #1,948 | 60 |
| 79 | gutenberg.org | 36,943 | #2,856 | 57 |
| 80 | gambleaware.org | 36,814 | #432 | 68 |
| 81 | phys.org | 36,077 | #2,203 | 59 |
| 82 | nber.org | 35,896 | #1,378 | 61 |
| 83 | shrm.org | 35,786 | #1,636 | 60 |
| 84 | metmuseum.org | 35,522 | #3,018 | 57 |
| 85 | eff.org | 35,489 | #1,174 | 62 |
| 86 | ourworldindata.org | 35,086 | #1,972 | 59 |
| 87 | propublica.org | 33,889 | #2,205 | 59 |
| 88 | ghost.org | 33,742 | #1,326 | 62 |
| 89 | iop.org | 33,680 | #2,348 | 59 |
| 90 | nami.org | 33,497 | #569 | 66 |
| 91 | amnesty.org | 33,402 | #2,479 | 58 |
| 92 | nobelprize.org | 32,910 | #3,195 | 57 |
| 93 | americanbar.org | 32,416 | #2,607 | 58 |
| 94 | ama-assn.org | 31,804 | #2,210 | 59 |
| 95 | icann.org | 31,748 | #281 | 70 |
| 96 | nfpa.org | 31,590 | #3,747 | 56 |
| 97 | aap.org | 31,478 | #2,878 | 57 |
| 98 | zenodo.org | 30,435 | #1,766 | 60 |
| 99 | donorbox.org | 30,392 | #1,907 | 60 |
| 100 | eurekalert.org | 30,207 | #4,836 | 55 |
Compare the top five side by side in the free domain authority checker, or check any other .org site there, up to 5 domains at once with no sign-up.
How far ahead of the other .org websites is wordpress.org?
wordpress.org leads wikipedia.org, the second-most-linked .org website, by 554,210 linking domains: 2,780,782 against 2,226,572, so second place has 20% fewer. Together, wordpress.org, wikipedia.org and mozilla.org account for 41% of the linking domains summed over all 100 sites on the list. 23 of the 100 have a full MrKeyword profile, among them wordpress.org and wikipedia.org. With 50 sites in the web's top 1,000 domains, .org is 1st of 14 domain endings on that measure; the median ending has 4.
How many .org websites rank among the most-linked on the web?
181,505 .org domains rank in the top 2 million of MrKeyword's web graph (August–October 2026), 9.1% of those positions. That count includes every registered .org domain in that range, infrastructure too. Of the 100 on this list, 50 rank in the web's top 1,000 domains, 100 in the top 10,000 and 100 in the top 100,000. The 100th site, eurekalert.org, has 30,207 linking domains, about what a .org domain needed to make this list.
Where the 100 .org websites rank on the whole web
| Web graph rank | .org websites on this list |
|---|---|
| Top 1,000 | 50 |
| Top 10,000 | 100 |
| Top 100,000 | 100 |
| Top 1,000,000 | 100 |
| All 100 | #16 to #4,836 |
How strong is a typical top .org website?
The median Link Authority of the top 50 .org websites is 67, and the median site among them has 113,545 linking domains. Across the 14 domain endings MrKeyword lists, that median runs from 48 (.in) to 67 (.org), and .org is 1st of 14. Link Authority is MrKeyword's 0–100 score on a logarithmic scale, so a few points near the top stand for a large difference in links.
How does .org compare with other domain endings?
Of the 14 domain endings MrKeyword lists, .org has the most domains in the web graph's top 2 million, with 181,505. The table compares each ending's count, its most-linked website and the median Link Authority of its top 50.
Most-linked websites by domain ending
| Domain ending | Domains in the top 2 million | Most-linked website | Median Link Authority (top 50) |
|---|---|---|---|
| Most-linked .ca websites | 19,087 | canada.ca | 54 |
| Most-linked .co.uk websites | 33,347 | bbc.co.uk | 55 |
| Most-linked .in websites | 13,095 | amazon.in | 48 |
| Most-linked .com.au websites | 14,945 | smh.com.au | 48 |
| Most-linked .de websites | 93,796 | google.de | 59 |
| Most-linked .fr websites | 30,865 | cnil.fr | 57 |
| Most-linked .nl websites | 29,630 | jwwb.nl | 50 |
| Most-linked .es websites | 11,052 | google.es | 49 |
| Most-linked .it websites | 20,976 | google.it | 51 |
| Most-linked .jp websites | 42,673 | hatena.ne.jp | 58 |
| Most-linked .br websites | 19,707 | www.gov.br | 50 |
| Most-linked .edu websites | 4,133 | harvard.edu | 61 |
| Most-linked .gov websites | 4,249 | nih.gov | 64 |
| .org | 181,505 | wordpress.org | 67 |
How was this list made?
The list takes every registered domain ending in .org among the top 2 million positions of MrKeyword's web graph (August–October 2026), orders them by linking domains and keeps the first 100 that are websites rather than infrastructure. .org is an open generic ending, widely used by non-profits, open-source projects and reference sites. 6 infrastructure domains were left out on the way (gmpg.org, w.org, cookiedatabase.org, schema.org, cookielaw.org and purl.org): CDNs, script, font and tag hosts, markup namespaces and link shorteners collect links from code or redirects on every page that uses them, not from people choosing to link.
Each Link Authority follows the same rule as MrKeyword's site profiles and its checker: MrKeyword's own PageRank where it has seen enough links to a site, otherwise the site's web graph position on a 0–100 log curve (how Link Authority is calculated). Linking domains count each linking website once. Web graph rank is the site's PageRank position, which weighs where links come from, so it does not always follow the linking-domain order. Ranks describe links between domains, not traffic. How MrKeyword collects and labels this data.
For the 100 most-linked websites on the whole web, ranked the same way, see the most-linked websites of 2026. Well-known sites have their own profile on the domain authority list of popular websites, and the other endings are listed above.