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Type of site | Web search engine |
|---|---|
| Created by | Juha Nurmi[1] |
| URL | ahmia juhanurmihxlp77nkq76byazcldy2hlmovfu2epvl5ankdibsot4csyd.onion  (Accessing link help) |
| Launched | 2014; 11 years ago (2014)[1] |
| Current status | Online |
Ahmia is aclearnetsearch engine forTor's onion services created by Juha Nurmi in 2014.[2] Ahmia is accessible through both itsclearweb website and its onion service version. It is one of the primary tools used by Tor users to discover and access onion websites.[3]
Developed during the2014 Google Summer of Code by Juha Nurmi with support from theTor Project,[1] theopen source.[4] Ahmia indexes onion websites on the Tor network.[5] The search engine is open-source: the crawler component is based onScrapy,[6] the index component is built withElasticsearch,[7] and the website component is developed withDjango.[8]
Ahmia has a strict policy of filteringchild sexual abuse material, and since October 2023, Ahmia has expanded its filter to include all sexually related searches, citing widespread distribution and search of child sexual abuse on Tor as the reason.[9]In a study inScientific Reports explained the filtering policies for Ahmia and its role in combating the distribution of illicit content on the Tor network. The paper also acknowledged the contributions of the first author, Juha Nurmi, the creator of Ahmia as he expanded filtering policies in November 2023. According to the scientific publication, the decision to broaden content filtering was the result of the research findings, which showed that 11 percent of search sessions sought child sexual abuse material on Tor and that around one-fifth of onion websites hosted such unlawful content.[10]
The service partners withGlobaLeaks's submissions andTor2web statistics for hidden service discovery[11] and as of July 2015 has indexed about 5000 sites.[12] Ahmia is also affiliated withHermes Center for Transparency and Digital Rights, an organization that promotes transparency and freedom-enabling technologies.[13]
In July 2015 the site published a list of hundreds of fraudulent clones of web pages (including such sites asDuckDuckGo, as well adark web page).[14][15] According to Nurmi, "someone runs a fake site on a similar address to the original one and tries to fool people with that" with the intent of scamming people (e.g. gathering bitcoin money by spoofing bitcoin addresses).[16]
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