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Expired Environment & Nature domains on .org with backlinks

Updated Part of Environment & Nature · .org

This page lists 499 expired Environment & Nature domains on .org. Each has expired, is available to register, and has referring domains that survived the original site going offline. That is 42% of the 1,185 Environment & Nature listings and 3% of the 13,283 .org listings in the directory. Across the slice, the median listing here has 10 to 50 referring domains; 443 carry at least one named linking source; 499 had their availability re-checked in the last 30 days; 52 are open, with the name already shown; 11 sit in the top band of 250 or more referring domains. Of the 499 with a recorded registration era, 31% were first registered in 2010 to 2014, the largest band, with registrations running from the 1995 to 1999 band to the 2020 to 2024 band. The most common linking sources are Wikipedia (244), Hacker News (16) and Columbia University (14).

About this list

Narrowing a category to one extension is how a registrar choice or a market focus usually starts: the same topic reads differently on .org than elsewhere, and the extension decides who can register the name.

Every listing is verified the same way as the rest of the directory. Availability is re-checked against the live DNS root over DNS-over-HTTPS, and a listing that turns out to be registered is removed. Referring domains are counted from our own web crawl, not from a paid link index. Site history comes from archived captures: the archived snapshot count and the span of years the site was captured. Revised Score blends link-graph centrality, referring domains and site history into one 0 to 100 grade, computed across the whole directory.

At a glance

Cite as: “Expired Environment & Nature domains on .org with backlinks”, Revised, https://getrevised.com/market/domains/category/environment/tld/org. Last updated 6 November 2026. Updated continuously; free listings and paid plans show names; others masked.

As of 6 November 2026, the Revised directory of expired Environment & Nature domains on .org with backlinks holds 499 listings, each classified from its archived content. All have expired and are available to register. The median listing has 10 to 50 referring domains, and 11 have 250 or more. Spam-flagged names are filtered out, and 499 (100%) had availability re-checked within 30 days. 443 (88%) carry a link from a tracked university, encyclopedia or news site. Referring domains come from our own web crawl. 52 (10%) are free listings: name and exact counts shown, the rest stay masked except on Starter and Business. Search and filters need no account; masked names stay masked on Free.

Listings
499
Free listings
52 (10%)
Median ref. domains
10 to 50
Named sources
443 (88%)
Re-checked, 30 days
499 (100%)
Last updated
6 Nov 2026

Frequently asked questions

How many expired Environment & Nature domains on .org are listed?
499 at the last count. Every one has expired, is available to register, and has referring domains counted from our web crawl. The count updates as listings are added and as availability re-checks remove names that were registered.
How are these Environment & Nature .org listings verified?
Availability is re-checked against the live DNS root over DNS-over-HTTPS, history comes from archived captures, and referring domains are counted from our web crawl. A listing found to be registered is removed. Names are masked on Free; Starter and Business show every name, and metrics are open.
How do I narrow Environment & Nature .org further?
Use the filters to pivot: change the referring domain band, minimum age or Revised Score, or clear the preset to see the whole directory. Compare listings on site history before choosing one, then register the name at any registrar that offers it.

DR: Domain Rating by Ahrefs

Directory listings. Up and Down move between rows; Enter opens the listing; Right and Left move through the row’s controls.
Actions
.orgEnvironment & Nature50-1000–9Wikipedia$250 to $99925 yr.org63
.orgEnvironment & Nature50-1000–9University of Minnesota$250 to $99925 yr.org65
.orgEnvironment & Nature50-1000–9IEEE$250 to $9993 yr.org39
.orgEnvironment & Nature50-1000–9University of Minnesota$250 to $99919 yr.org65
.orgEnvironment & Nature50-1000–9Wikipedia$250 to $99918 yr.org69
.orgEnvironment & Nature10-500–9Wikipedia$250 to $99917 yr.org69
.orgEnvironment & Nature50-1000–9University of Pennsylvania$250 to $9999 yr.org60
.orgEnvironment & Nature50-1000–9UC Berkeley$250 to $99914 yr.org90
.orgEnvironment & Nature50-1000–9EPA$250 to $99915 yr.org66
.orgEnvironment & Nature50-1000–9Wikipedia$250 to $99917 yr.org24
.orgEnvironment & Nature50-1000–9University of Manchester$250 to $99911 yr.org63
.orgEnvironment & Nature10-500–9PLOS$250 to $99919 yr.org48
.orgEnvironment & Nature10-500–9Wikipedia$250 to $99919 yr.org58
.orgEnvironment & Nature50-1000–9Penn State$250 to $99911 yr.org65
.orgEnvironment & Nature50-10030–49University of Cambridge$250 to $9997 yr.org50
.orgEnvironment & Nature10-500–9Wikipedia$250 to $99919 yr.org69
.orgEnvironment & Nature10-5020–29EPA$250 to $99925 yr.org48
.orgEnvironment & Nature10-500–9Wikipedia$250 to $99916 yr.org69
.orgEnvironment & Nature10-500–9NOAA$100 to $24915 yr.org63
.orgEnvironment & Nature10-500–9Dartmouth College$250 to $9997 yr.org64
.orgEnvironment & Nature10-500–9University of Washington$100 to $2494 yr.org65
.orgEnvironment & Nature10-500–9Wikipedia$250 to $9996 yr.org58
.orgEnvironment & Nature10-500–9Europa EU$100 to $2499 yr.org88
.orgEnvironment & Nature10-500–9Wikipedia$100 to $24916 yr.org59
.orgEnvironment & Nature<100–9Penn State$2,500 and up19 yr.org45
.orgEnvironment & Nature10-500–9Wikipedia$100 to $2496 yr.org—
.orgEnvironment & Nature10-500–9UC Berkeley$100 to $2496 yr.org87
.orgEnvironment & Nature10-500–9Wikipedia$100 to $24920 yr.org69
.orgEnvironment & Nature10-500–9Wikipedia$100 to $24916 yr.org66
.orgEnvironment & Nature50-1000–9University of Pennsylvania$250 to $99920 yr.org54
.orgEnvironment & Nature10-500–9Wikipedia$250 to $99917 yr.org46
.orgEnvironment & Nature50-1000–9Europa EU$250 to $9997 yr.org88
.orgEnvironment & Nature10-500–9Wikipedia$100 to $2499 yr.org69
.orgEnvironment & Nature10-500–9Columbia University$250 to $99915 yr.org92
.orgEnvironment & Nature10-500–9Wikipedia$100 to $24921 yr.org—
.orgEnvironment & Nature10-500–9USC$250 to $9999 yr.org65
.orgEnvironment & Nature10-500–9Cornell UniversityCornell Law$250 to $99912 yr.org90
.orgEnvironment & Nature10-500–9Wikipedia$250 to $99918 yr.org58
.orgEnvironment & Nature10-5030–49Europa EU$250 to $99914 yr.org88
.orgEnvironment & Nature10-500–9WikipediaWikimedia Foundation$250 to $99914 yr.org50
Featured listing.orgEnvironment & Nature10-500–9Wikipedia$250 to $99915 yr.org—
.orgEnvironment & Nature10-500–9Wikipedia$100 to $24921 yr.org65
.orgEnvironment & Nature10-5020–29EPA$100 to $24923 yr.org66
.orgEnvironment & Nature10-500–9Yale University$100 to $2495 yr.org89
.orgEnvironment & Nature10-500–9University of Edinburgh$100 to $2493 yr.org64
.orgEnvironment & Nature10-500–9University of Maryland$100 to $24912 yr.org64
.orgEnvironment & Nature10-500–9University of Cambridge$100 to $24915 yr.org89
.orgEnvironment & Nature10-500–9National Institutes of HealthNCBI$100 to $2495 yr.org86
.orgEnvironment & Nature10-500–9Wikipedia$1,000 to $2,49915 yr.org49
.orgEnvironment & Nature10-500–9Columbia University$100 to $2495 yr.org89
151–200 of 499