DuckDuckGo

By Bill Hartzer · Updated 17 September 2026

Both of the popular answers are wrong

Ask where DuckDuckGo's results come from and you will get one of two confident replies. The first is that DuckDuckGo has its own index. The second is that DuckDuckGo is just a Bing wrapper. Neither is right, and the truth is more interesting than either.

DuckDuckGo runs real, documented crawlers of its own — DuckDuckBot and DuckAssistBot — and maintains its own indexes. Those are not marketing claims: both crawlers publish user-agent strings, both are observable in server logs, and DuckDuckGo documents them. So “no crawler of its own” is false.

But the ranked web links on a DuckDuckGo results page are not produced by those crawlers. DuckDuckGo's own words, on its own sources page, are precise: “we have more traditional links and images in our search results too, which we largely source from Bing,” alongside “We also maintain our own crawler (DuckDuckBot) and many indexes to support our results.” So “it has its own index”, stated flatly, is misleading about the thing a reader actually cares about.

The one-line version: Bing supplies the links; DuckDuckGo supplies the crawlers behind its answer boxes, the privacy layer and the product. That is what “hybrid” means on this page — not that roughly half the index is DuckDuckGo's, because it is not.

What each part of the results page actually is

The crawlers. DuckDuckBot identifies itself as DuckDuckBot/1.1; (+http://duckduckgo.com/duckduckbot.html) and is described by DuckDuckGo as running to constantly improve its search results. DuckAssistBot, DuckAssistBot/1.2; (+http://duckduckgo.com/duckassistbot.html), is a real-time crawler that fetches pages to generate DuckAssist answers with citations. DuckDuckGo states explicitly that this data is not used in any way to train AI models, and publishers can block the bot in robots.txt, with changes taking effect within 72 hours.

The Instant Answers. The boxes above the links are DuckDuckGo's own work, built on its own indexes over hundreds of specialist sources including Wikipedia, Wolfram Alpha, Sportradar, Stack Overflow, package trackers and community-contributed open-source answer definitions.

The web links and images. Bing, under a direct syndication contract with Microsoft rather than the public Bing Search API, an arrangement in place since roughly 2010 to 2012.

Maps and addresses. Apple Maps, via a partnership announced in January 2019, with location handled so that personally identifiable information does not pass to Apple.

Several historical suppliers have been removed or reduced, including Yahoo! BOSS (itself Bing-derived) and Yandex; neither is a current source.

The clearest public evidence of how load-bearing the Bing dependency is came during a Bing API outage in 2024, when DuckDuckGo stopped returning web results, as did Ecosia and other Bing-fed engines. When Microsoft retired all public Bing Search APIs on 11 August 2025, reporting noted that partners with longstanding direct contracts — DuckDuckGo specifically — were not immediately affected, and DuckDuckGo kept returning results. Neither company publishes the contract terms, so nothing can be said about how secure the arrangement is.

Who runs it and how it makes money

DuckDuckGo, Inc. is private, independent and founder-controlled, founded and led by Gabriel Weinberg, and based in Paoli, Pennsylvania. It has taken outside investment — Union Square Ventures in 2011, an Omers Ventures-led round in 2018 — but has never been acquired. Microsoft holds no ownership stake. It is a supplier and an advertising partner, nothing more, and the recurring claim that Microsoft owns or invested in DuckDuckGo is simply false.

Revenue comes from three structural sources. First, search advertising: keyword-matched ads served predominantly through Microsoft Advertising, targeted to the query and a coarse region rather than a user profile. DuckDuckGo states that most ad clicks are managed by Microsoft's ad network and that Microsoft Advertising does not associate ad-click behavior with a user profile. Second, affiliate commissions from Amazon, eBay and a named TripAdvisor arrangement, with no personal information passed. Third, a paid subscription, launched as Privacy Pro in April 2024 and restructured into tiers in 2025, bundling a VPN, personal information removal, identity theft restoration and higher-tier AI access.

The structural point is that none of this requires user data: search ads on commercial-intent queries are valuable from the query alone. DuckDuckGo is private and files no accounts, so revenue figures deserve care. The only well-cited figure is Weinberg's report of US$115,000 in revenue in 2011 with three employees; the repeated claims of profitability since 2014 and $100m revenue in 2021 trace to founder interviews, not audited accounts.

Privacy: what is claimed, what is verified, and the asterisk

DuckDuckGo's privacy policy, last updated 21 November 2025, is unusually plain: “We don't save or share your search or browsing history,” “We don't save your IP address or any unique identifiers alongside your searches,” and “we have no way to create a history of your search queries or the sites you browse.” Settings live in cookies or a URL-encoded string rather than an account, referrer data is stripped on click-through, and the browser blocks third-party trackers, enforces HTTPS and offers a one-tap Fire Button. No credible finding has ever shown DuckDuckGo storing personal search histories, and its browser is open-source in significant part.

The episode that damaged this reputation is misreported in both directions. In May 2022 the security researcher Zach Edwards found that the DuckDuckGo Privacy Browser permitted Microsoft-owned trackers, including bat.bing.com and LinkedIn scripts, to load on third-party sites while blocking Google's and Facebook's. Weinberg confirmed the cause: the search syndication agreement with Microsoft contractually restricted the blocking. In August 2022 DuckDuckGo said it would block those scripts, the restriction no longer applying. Two things are true at once. The exception was narrow — third-party script loading in the browser, not search logging. And DuckDuckGo had not disclosed it while marketing itself on tracker blocking. The fair criticism is of disclosure.

There is also a structural asterisk the marketing does not dwell on. Because Bing serves the links, queries necessarily reach Microsoft in some form. DuckDuckGo acts as a proxy, so Microsoft should not receive an IP address or an identity, but the query text is not invisible to the supplier. “No logs at DuckDuckGo” is not the same claim as “no third party ever sees the query.”

Finally, jurisdiction. DuckDuckGo is a US company subject to US legal process, and its supplier is another US company. Its defense against compulsion is data minimization rather than jurisdiction — you cannot subpoena logs that do not exist. That is a real defense, but a different one from what an EU-based engine offers.

AI features, and the best off switch in mainstream search

DuckDuckGo's distinguishing position on AI is that it is optional and clearly opt-out, which in 2026 is unusual among mainstream engines.

DuckAssist, launched in March 2023, produces AI summaries above search results using OpenAI and Anthropic models accessed anonymously, grounded on pages fetched by DuckAssistBot with visible citations. Duck.ai is an anonymised chat front end to third-party models from OpenAI, Anthropic, Meta and Mistral among others, in beta from June 2024 and generally available from March 2025. DuckDuckGo proxies requests so model providers do not receive user identity, and states chats are not used to train the models. Image generation left beta in January 2026, when voice chat was also added.

The off switch is the part worth dwelling on. Per-feature toggles for Duck.ai, Search Assist and other AI features exist in both search and browser settings. Beyond that, noai.duckduckgo.com is a dedicated endpoint DuckDuckGo describes as “our AI-free search experience that automatically turns off all AI features and filters out AI-generated images—no settings required.” A 2025 setting also filters AI-generated images out of image results. DuckDuckGo does not date the noai endpoint, so no launch date is given here.

Neither Google nor Bing offers a documented global switch to turn AI answers off. For a reader whose complaint is specifically “I want search without AI,” DuckDuckGo is currently the most straightforward mainstream answer, and that is a factual difference rather than a preference.

Usage, and why the measured share is probably too low

All StatCounter figures are Global Stats for August 2026, accessed 17 September 2026. StatCounter measures tracked page views rather than users or queries.

Worldwide, all devices: 0.7%
Worldwide, desktop only: 0.7%
United States, all devices: 1.7%

DuckDuckGo's US share is roughly 2.4 times its worldwide share; it is disproportionately an American product, and Wikipedia cites 2026 traffic data putting about 53% of its monthly global traffic in the United States.

There is a known measurement problem here. StatCounter works from referrer data on tracked sites; DuckDuckGo strips referrers by design and its users disproportionately block analytics, so its true share is very likely understated by an amount nobody has quantified. The right response is the figure plus the caveat, not a more flattering guess. DuckDuckGo formerly published live query counts, the historical anchor being roughly 102.2 million searches per day in January 2021; no current daily figure is published. The frequently circulated “about 3% of US search” comes from 2022 estimates, not current measurement.

What a court and a regulator measured

The memorandum opinion in United States of America v. Google LLC, No. 1:20-cv-03010-APM, records DuckDuckGo at 2.1 percent of US general search queries by 2020, in a table putting Google at nearly 90 percent, Bing at 5.5 percent and Yahoo at 2.2 percent. It is a judicially found figure resting on Comscore data and Google's own internal numbers, which makes it far more citable than any vendor estimate of the same quantity, and it sits above StatCounter's current US reading of 1.7% — the direction the referrer-stripping argument predicts. The shares describe 2020 and the judgment is on appeal.

An Australian regulator measured the opposite movement. The Australian Competition and Consumer Commission's Digital Platform Services Inquiry, Interim Report No. 9, Revisiting General Search Services, recorded DuckDuckGo at 0.6 percent of Australia's general search market in August 2024, down from 0.9 percent in September 2021, with Google at 94 percent, Bing at 4.7 percent, Yahoo at 0.8 percent and Ecosia at 0.1 percent. The same report found Google pre-set as the search engine on at least 91 percent of mobile browsers and 77 percent of desktop browsers in that market. A regulator-verified decline in a privacy engine's share runs against the usual account of privacy search gaining ground, and the default-placement figures printed beside it suggest the mechanism. These are August 2024 figures and specific to Australia.

Stated preference and revealed preference

The Pew Research Center's How Americans View Data Privacy, published in 2023, found that 44 percent of US adults say they have used a browser or search engine that does not keep track of what they are doing, and that 81 percent feel very or somewhat concerned about how companies use the data they collect about them. Set 44 percent claimed against a measured share in the low single digits and the gap is the substance: private search is a widely held preference and a narrowly practiced habit. Two limits belong with the figure. It is 2023 fieldwork and self-reported, and the question conflates browsers with search engines, so it overstates search-specific adoption.

History

Gabriel Weinberg launched DuckDuckGo in 2008, self-funded at first, built on Yahoo BOSS, Wikipedia and its own crawler. A precise launch day is widely repeated, but both Wikipedia and DuckDuckGo give only the year, so the year is what appears here.

Union Square Ventures invested in 2011, the year a San Francisco billboard reading “Google tracks you. We don't” put the company on the map. The biggest growth event came in 2013 with the Snowden disclosures, after which traffic roughly tripled. Distribution followed in 2014, when DuckDuckGo became a built-in option in Apple Safari and Mozilla Firefox. A redesign, mobile apps and an Omers Ventures-led round came in 2018, the Apple Maps partnership in January 2019, and growth peaked around 2020 to 2021.

In March 2022 DuckDuckGo announced it was down-ranking sites it identified as Russian state disinformation following the invasion of Ukraine — criticised by some users as inconsistent with its stated position on unbiased results, and a genuine tension worth recording rather than smoothing over. The Microsoft tracker controversy and its resolution ran from May to August 2022 and remains the source of most current skepticism about the company. DuckAssist arrived in March 2023, Privacy Pro in April 2024 — the first meaningful revenue line that is not advertising — and Duck.ai between June 2024 and March 2025.

Who it suits, who it does not, and the misconceptions

Good at: precisely what it advertises. No profiling, no filter bubble, no search history tied to a person, a clean fast results page, and by a distance the best AI opt-out in mainstream search. The bang commands — !w for Wikipedia, !g for Google, !a for Amazon — are an excellent power-user feature nothing else matches, and Instant Answers are its own work. The browser and privacy suite are credible products, not marketing skins.

Bad at: finding things Bing cannot find. Long-tail queries, very recent pages, non-English results and local search outside major US and European markets are all noticeably weaker than Google, and the reason is structural: it inherits Bing's index and Bing's coverage gaps, and it cannot fix them. It has no leverage over its own supply.

Who should not use it: researchers and anyone doing exhaustive discovery work, because if you need confidence a page exists, DuckDuckGo alone will not give it to you. Anyone whose threat model excludes US jurisdiction and US corporate infrastructure. And anyone treating it as an independent second opinion on a Google result — it is a second interface, not a second index.

Three further corrections. DuckDuckGo is not a metasearch engine: it does not query several engines and merge their rankings the way Searx or Dogpile do. It was not caught tracking users: the 2022 finding concerned third-party scripts in its browser, not search logging. And it does not sell user data, because it has none to sell.

Frequently asked questions

Does DuckDuckGo have its own index?

Partly, and the unqualified answer in either direction is wrong. DuckDuckGo runs its own documented crawlers, DuckDuckBot and DuckAssistBot, and maintains its own indexes that power its Instant Answers. But the ranked web links on a results page are not from those crawlers. In DuckDuckGo's own words, it sources traditional links and images “largely” from Bing. Own crawlers, yes; own web-link index, no.

Where does DuckDuckGo get its search results?

Web links and images come largely from Microsoft Bing, under a direct syndication contract rather than the public Bing Search API. Maps and address results come from Apple Maps under a partnership announced in January 2019. The Instant Answer boxes above the links are built on DuckDuckGo's own indexes over hundreds of specialist sources. Historical suppliers such as Yahoo! BOSS and Yandex are no longer current sources.

Is DuckDuckGo owned by Microsoft?

No. DuckDuckGo, Inc. is private, independent and founder-controlled by Gabriel Weinberg, and has never been acquired. It took investment from Union Square Ventures in 2011 and an Omers Ventures-led round in 2018. Microsoft holds no ownership stake whatsoever; it is a search result supplier and an advertising partner. The two relationships are commercial contracts, not corporate control.

Is DuckDuckGo really private?

Its policy, updated 21 November 2025, says it saves no search or browsing history and no IP address or unique identifiers alongside searches, and no credible finding has ever contradicted that. Two caveats apply: because Bing supplies the links, query text reaches Microsoft in some form even though DuckDuckGo proxies it, and DuckDuckGo is a US company whose defense against legal compulsion is storing little rather than being outside US reach.

Was DuckDuckGo caught tracking users?

No, though something real did happen. In May 2022 a researcher found the DuckDuckGo Privacy Browser allowing Microsoft-owned trackers to load on third-party sites while blocking Google's and Facebook's, which Weinberg confirmed was required by the Microsoft syndication agreement. DuckDuckGo began blocking those scripts in August 2022. Nothing showed DuckDuckGo logging search histories. The legitimate criticism is of non-disclosure, not of tracking.

How do you turn off AI in DuckDuckGo?

Two ways, and this is a genuine differentiator. Per-feature toggles for Duck.ai, Search Assist and other AI features exist in both search settings and browser settings. Alternatively, noai.duckduckgo.com is a dedicated endpoint that DuckDuckGo describes as turning off all AI features and filtering out AI-generated images with no settings required. Neither Google nor Bing offers a documented global AI off switch.

How much of the search market does DuckDuckGo have?

StatCounter Global Stats for August 2026 record 0.7% worldwide across all devices, 0.7% on worldwide desktop and 1.7% in the United States. That is likely an undercount: StatCounter reads referrer data, DuckDuckGo strips referrers by design, and its users disproportionately block analytics. The US court in United States v. Google LLC found DuckDuckGo at 2.1 percent of US general search queries by 2020, on compelled data, which is both a better class of figure and a higher one. Australia's competition regulator, meanwhile, recorded a fall from 0.9 percent in September 2021 to 0.6 percent in August 2024. The often-quoted “about 3% of US search” comes from 2022 estimates, not current measurement.

Is DuckDuckGo a good alternative to Google?

For everyday searching with no profiling and no filter bubble, yes, and its AI opt-out is the best in mainstream search. For exhaustive research it is not: it inherits Bing's index and therefore Bing's weaknesses on long-tail, very recent and non-English material. And it is not a genuine second opinion on Google, because Bing, Yahoo and DuckDuckGo largely share one underlying index.