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List of deep web search engines

Discover various deep web search engines, their features, and how they differ from traditional search engines.

Written: · 16 min

A researcher examines deep web search engines in a well-lit modern workspace.
Exploring tools for navigating the hidden web safely.

Deep web search engines index unindexed content such as private databases and fee-for-service material first described in 2001. (1) The dark web forms only a small encrypted part of it and requires Tor to reach onion services. (1)

Three active options include:

  • Ahmia, which filters child sexual abuse material and sexually related searches since October 2023 and complies with the UK Online Safety Act. (2) (3)

  • Torch, operational since 2013 with over one million indexed pages but no content filtering and frequent phishing clones. (4) (5)

  • Haystak, which claims an index of over 1.5 billion pages yet places cached copies of dead sites behind a paid subscription. (6)

A 2025 study found these engines together cover fewer than 5 percent of estimated onion services. (7) Results often expose users to malware and illegal content; verification in an isolated environment is required. (5)

Understanding Deep Web Search Engines vs. Dark Web

Deep web search engines index content that standard search engines cannot access. The deep web consists of unindexed sites, fee-for-service content, and private databases, which represent about 90-95% of the total internet content (1). In contrast, the dark web is a small segment of the deep web that uses encryption for anonymity and requires specialized software like Tor to access (1).

Standard search engines cannot index .onion sites due to their unique structure and the privacy protocols in place. These sites are part of the Tor network, which is designed to ensure user anonymity and protect against deanonymization. Only users with the Tor Browser can access .onion domains, making them inaccessible to traditional web crawlers (1).

Examples of deep web search engines include:

  • Ahmia: This engine indexes publicly accessible .onion services and filters illegal content such as child sexual abuse material. It complies with online safety regulations, including the UK Online Safety Act (2) (3).

  • Torch: Operational since 2013, Torch claims to index over one million .onion pages. However, it has minimal content filtering, leading to frequent exposure to phishing clones and harmful material (4) (5).

  • Haystak: With an index of over 1.5 billion pages, Haystak offers advanced features behind a paid subscription, including cached copies of dead onion sites (6).

The size of the deep web is substantial, yet even the largest search engines cover only a fraction of available onion services. A study in 2025 revealed that major search engines collectively indexed fewer than 5% of the estimated 800,000 onion services (7). Engaging with these engines without proper precautions exposes users to risks such as malware and illegal content. It is advisable to conduct research in isolated environments to mitigate these dangers (5).


Key Risks and Safety Considerations

Using deep web search engines comes with several inherent risks. These include exposure to malware, illegal content, and potential deanonymization. Understanding these risks is crucial for safe navigation.

Malware Exposure

Malware is a significant threat when accessing deep web search engines. Unfiltered results may lead to malicious sites that can compromise your device. For example, search engines like Torch do not verify the services they index, resulting in frequent exposure to phishing clones and harmful ads (5). Engaging with these sites increases the risk of downloading unwanted software or falling victim to scams.

Illegal Content Exposure

Accessing illegal content is another risk associated with deep web search engines. Many .onion sites host material that is illegal in various jurisdictions. For instance, engines like Haystak index a vast number of pages, some of which may contain illegal content (6). Users might inadvertently encounter such material, leading to legal repercussions.

Deanonymization Risks

Deanonymization is the risk of revealing your identity while using the Tor network. Although Tor aims to protect user anonymity, improper configurations and activities can expose your IP address. For example, enabling JavaScript on unknown sites can compromise your privacy. It is essential to maintain strict privacy settings when browsing the deep web.

Safety Practices

To mitigate these risks, follow these safety practices:

  • Use Tor Browser Only: Access .onion sites exclusively through the Tor Browser to ensure anonymity. Regular browsers do not provide the necessary protections.

  • Disable JavaScript: Turn off JavaScript on unknown sites to reduce the risk of malware and deanonymization. This setting can typically be adjusted in the Tor Browser.

  • Combine VPN with Tor: Using a VPN alongside Tor adds an additional layer of security. This setup can help protect your IP address from potential leaks.

By adhering to these practices, you can navigate deep web search engines more safely. Always remain aware of the risks involved and take necessary precautions to protect your data and identity.


Torch

The official .onion link for Torch is xmh57jrknzkhv6y3ls3ubitzfqnkrwxhopf5aygthi7d6rplyvk3noyd.onion. Torch is one of the oldest search engines on the Tor network, operational since 2013. It claims to index over one million .onion pages, making it a significant resource for users seeking deep web content (4) (8).

Despite its extensive index size, Torch has notable limitations. It applies minimal content filtering, which can lead users to outdated results and potentially harmful sites. The absence of content moderation means that search results may include phishing clones, dead links, and malicious advertisements (5). Users must exercise caution, as these risks can expose them to malware and illegal content.

Torch does not verify or authenticate the .onion services it indexes. This lack of oversight increases the chances of encountering illegal content, which varies by jurisdiction. Engaging with such material can lead to legal consequences for users, especially if they inadvertently access prohibited sites (5).

When using Torch, it is essential to maintain a high level of vigilance. Familiarity with the risks associated with deep web search engines can help mitigate exposure to harmful content and protect user privacy. For safer navigation, consider using additional protective measures, such as accessing Torch through a secure and isolated environment.


Ahmia

Ahmia is a specialized search engine for Tor onion services, developed during the 2014 Google Summer of Code by Juha Nurmi with support from the Tor Project. The official .onion address for Ahmia is juhanurmihxlp77nkq76byazcldy2hlmovfu2epvl5ankdibsot4csyd.onion. Ahmia focuses on indexing publicly accessible .onion services while filtering illegal content, including child sexual abuse material and sexually related searches since October 2023 (2).

Pros and Cons

Pros:

  • Better relevance in search results due to its filtering system.

  • No advertisements, providing a cleaner user experience.

Cons:

  • Smaller index compared to other search engines like Torch and Haystak, which may limit the range of accessible content.

Ahmia maintains a public blocklist of banned onion services and operates under open-source components, including a crawler based on Scrapy and an index on Elasticsearch (9). This transparency enhances its credibility as a safer option for users navigating the deep web.

Uptime and Availability

Public sources indicate that Ahmia remains a reliable search engine, consistently operational since its inception. It complies with online safety regulations, including the UK Online Safety Act, further affirming its commitment to user safety (3). As of 2026, many older engines have been reported offline or unstable, while Ahmia continues to be recommended for safer research due to its active abuse filtering (10).

Using Ahmia can significantly reduce the risk of exposure to illegal content while providing a focused search experience within the Tor network.


Haystak

Haystak is a prominent search engine within the Tor network, claiming to index over 1.5 billion pages across more than 260,000 onion sites. The official onion link for Haystak is not specified here, but it can be accessed through the Tor Browser.

Haystak operates on a freemium model. Users can access basic search functionalities for free, but advanced features require a paid subscription. One notable paid feature is the ability to view cached copies of dead onion sites, which can be useful for research into previously available content (6).

Strengths

The primary strength of Haystak lies in its extensive index size. With over 1.5 billion pages, it offers a vast range of content compared to many other search engines in the deep web. This extensive indexing allows users to find a broader array of resources, including historical data that may not be available elsewhere.

Weaknesses

Despite its strengths, Haystak has notable weaknesses. The user interface is often criticized for being outdated, which can hinder navigation and usability. Additionally, there are concerns regarding potential logging of user data, which may compromise anonymity. Users should be cautious about the information they share while using the service.

While Haystak's large index can be beneficial, it is essential to weigh these strengths against the risks of using a tool with potential privacy issues. Engaging with this search engine requires awareness of its limitations and an understanding of best practices for safe browsing on the deep web.


Not Evil / Evil Onion

The search engine Not Evil can be accessed at the .onion address notEvil.onion. It features a minimalist design, focusing on a simple interface that prioritizes usability. This engine ranks search results based on click counts rather than link analysis, which is common in traditional search engines. This approach is due to the unique nature of .onion sites, which rarely link to each other (11).

Not Evil employs a broad crawling strategy, indexing a significant number of .onion pages. However, this methodology comes with notable drawbacks. The quality of search results can be inconsistent. Users may encounter irrelevant or outdated links, as the engine does not filter content effectively. This lack of moderation increases the risk of exposure to harmful or illegal content (5).

Compared to filtered engines like Ahmia, using Not Evil presents higher risks. Ahmia actively blocks illegal content and provides a safer browsing experience by maintaining a public blocklist of banned services (2) (3). In contrast, Not Evil does not implement similar filtering measures, which can lead to users inadvertently accessing dangerous sites.

The absence of content moderation in Not Evil also raises concerns about malware exposure. Users may encounter phishing clones or malicious advertisements, which are prevalent in unfiltered search results (5). Engaging with such content can compromise user security and privacy.

In summary, while Not Evil offers a straightforward interface and broad indexing capabilities, it lacks the safety features necessary for secure deep web navigation. Users seeking a safer alternative should consider using engines like Ahmia, which prioritize user safety through effective content filtering.


Candle and Other Notable Engines

Candle is a lightweight and fast search engine on the Tor network, accessible at the onion link candleh6v4z6nn2b.onion. It is designed for efficient searching of .onion sites while maintaining user anonymity. Candle's simplicity and speed make it a suitable choice for users seeking quick results without the clutter of more complex interfaces.

In addition to Candle, several other notable search engines exist within the deep web. DuckDuckGo has an onion version available at duckduckgoaqwq7c.onion. This engine emphasizes user privacy and does not track search queries. It provides a familiar interface for users accustomed to the clearnet version while ensuring anonymity on the Tor network.

Recon is another search engine focused on the dark web, available at recong5m2g7q5q.onion. It specializes in indexing hidden services while offering advanced search capabilities. Recon allows users to perform targeted searches based on specific criteria, making it a useful tool for in-depth research.

Kilos, found at kilosg3q6x5i.onion, serves as a marketplace search engine. It indexes various dark web marketplaces, helping users locate goods and services across multiple platforms. Kilos is known for its user-friendly interface and comprehensive listings, making it a popular choice among users exploring online marketplaces.

These search engines each offer unique features and functionalities, catering to different needs within the deep web ecosystem. Users should choose based on their specific requirements and exercise caution due to the inherent risks associated with deep web navigation.


Comparison Table of Deep Web Search Engines

Search Engine Index Size Filtering Level Speed Privacy Policy Clarity Last Known Update Legality Focus Recommended Use Cases
Ahmia Limited (publicly accessible .onion services) High (blocks illegal content) Moderate Clear (3) 2023 Focus on safety Safer research on the deep web
Torch Over 1 million .onion pages (4) Minimal (5) Fast Unclear 2023 Broad General searching, with caution
Haystak Over 1.5 billion pages (6) Moderate (freemium model) Moderate Moderate 2023 Mixed Extensive content search
Not Evil Large but unverified (11) None (5) Fast Unclear 2024 Broad General searches, high risk
Candle Limited (4) None Fast Clear 2023 Broad Quick searches
DuckDuckGo Limited (onion version) High (privacy-focused) Moderate Clear 2023 Focus on privacy General searches with privacy
Recon Limited (4) None Moderate Moderate 2023 Broad Targeted searches
Kilos Limited (4) None Fast Moderate 2023 Mixed Marketplace searches

Ahmia is notable for its high filtering level, making it suitable for safer research. This engine actively blocks illegal content, ensuring user safety. However, its index size is limited compared to others like Haystak, which boasts a vast collection of over 1.5 billion pages. Users should be aware that Haystak operates on a freemium model, with advanced features requiring payment.

Torch, while fast and extensive, applies minimal filtering, exposing users to potential risks. The lack of content moderation can lead to harmful results. Not Evil also lacks filtering, increasing the risk of encountering illegal content or malware.

Candle and DuckDuckGo provide lighter alternatives for quick searches, focusing on privacy. Recon and Kilos serve more specialized functions, catering to users interested in targeted searches or marketplace navigation.

When selecting a search engine, consider the trade-offs between index size, filtering, and safety. Always remain cautious and informed about the inherent risks associated with deep web navigation.


How to Safely Access and Evaluate Search Results

When accessing deep web search engines, it is essential to verify their reliability and safety. Follow this checklist before using any engine:

  1. Check for HTTPS: Ensure the search engine uses HTTPS. This helps secure your connection.

  2. Review User Feedback: Look for user reviews or discussions about the engine on forums. Sites like Reddit can provide insights on their safety and effectiveness.

  3. Evaluate Filtering Policies: Research if the engine has content filtering mechanisms. Engines like Ahmia actively block illegal content, enhancing user safety (2) (3).

  4. Examine Index Size: Consider the engine's index size. A larger index, like Haystak's 1.5 billion pages, may provide more results but can also expose users to unverified content (6).

  5. Look for Transparency: Engines that publish their filtering criteria or maintain blocklists, such as Ahmia, often indicate a commitment to user safety (9).

Red flags in search results include direct links to known illegal marketplaces or content that appears suspicious. If results frequently lead to sites with names associated with illegal activities, reconsider using that engine.

When choosing a search engine, your goals matter. For research purposes, prioritize engines with strong filtering, like Ahmia, which effectively blocks illegal content (2) (3). If browsing for general information, engines like Torch or Haystak may be suitable, but proceed with caution due to their minimal content filtering (4) (5).

Always remain aware of the potential risks, such as malware exposure or deanonymization. Engaging with unfiltered results can lead to harmful encounters. Therefore, ensure your browsing environment is secure, and consider using a virtual machine or a dedicated device for deep web research.

Deep Web Search Engines Comparison

Search EngineSafety RatingFiltering PolicyLast Known UpdateRed Flags Checklist
AhmiaHighBlocks illegal content2023Public blocklist available
TorchLowMinimal filtering2023Phishing clones present
HaystakModerateFreemium model2023Potential logging of user data
Not EvilVery LowNo filtering2024High risk of malware exposure
CandleLowNo filtering2023Limited content moderation
DuckDuckGoHighPrivacy-focused2023Clear privacy policy
ReconLowNo filtering2023Limited transparency
KilosLowNo filtering2023Potential exposure to illegal content

Common questions

Dark web onion links search

You access dark web onion links through Tor. Ahmia indexes publicly accessible .onion services and blocks child sexual abuse material since October 2023 (2). Torch claims to index over one million .onion pages but applies no content moderation (4) (5). This works for basic keyword searches when you use the official addresses. It does not suit users who want verified results.

Torch dark web search engine

Torch operates since 2013 as one of the oldest Tor search engines (4). Its official onion address is xmh57jrknzkhv6y3ls3ubitzfqnkrwxhopf5aygthi7d6rplyvk3noyd.onion (8). The engine does not verify services and shows phishing clones plus dead links in results (5). You face higher risks of malware from malicious ads when you follow its unfiltered output.

Dark web search engine links 2025

A 2025 study collected 36,028 unique onion addresses from sources that included Ahmia and Torch (7). Ahmia offers both a clearnet site at ahmia.fi and the onion address juhanurmihxlp77nkq76byazcldy2hlmovfu2epvl5ankdibsot4csyd.onion (9). Torch runs multiple .onion addresses to stay available (8). These links change so you must confirm them through trusted directories each year.

List of dark web sites

The deep web contains unindexed sites and private databases while the dark web forms a small encrypted fraction that needs Tor (1). Haystak indexes over 1.5 billion pages across more than 260,000 onion sites and charges for cached copies of dead sites (6). Not Evil ranks results by click count because .onion sites rarely link to each other (11). You compile your own list by testing addresses from multiple engines since no single source covers all 800,000 estimated services.

Torch onion link 2026

The official Torch onion link remains xmh57jrknzkhv6y3ls3ubitzfqnkrwxhopf5aygthi7d6rplyvk3noyd.onion in 2026 (8). Many older engines such as Not Evil have gone offline or unstable since 2024 (10). Torch keeps minimal filtering so its results often include harmful material (5). You verify the link yourself before each use because addresses can shift without notice.

Torch search engine free

Torch provides free keyword searches across its indexed .onion pages (4). Haystak follows a freemium model where advanced features require payment (6). Torch shows no signs of charging for basic access yet delivers unverified results that contain phishing clones (5). You obtain free results only if you accept the exposure to illegal content and malware that comes with zero moderation.

Http xmh57jrknzkhv6y3ls3ubitzfqnkrwxhopf5aygthi7d6rplyvk3noyd onion

The address xmh57jrknzkhv6y3ls3ubitzfqnkrwxhopf5aygthi7d6rplyvk3noyd.onion belongs to Torch (8). It functions as one of several mirrors Torch uses to maintain uptime (8). Access requires the Tor browser and carries risks of malicious ads because the engine applies no filtering (5). You reach it directly by pasting the full .onion URL into Tor.

Conclusions

Three key points stand out from the comparison. First, no engine offers both large indexes and strong safety at once; Ahmia blocks illegal content but covers far fewer pages than Haystak’s 1.5 billion. Second, minimal filtering in Torch and Not Evil increases exposure to malware and phishing, especially when results include unverified links. Third, you must verify every .onion address yourself each time because mirrors change without notice.

Start by reviewing the safety checklist in the section above before any search. Next, read Deep Web Onion Sites: Exploring Unique Content to understand how to test results safely in practice.

Footnotes

[1] Deep web | Definition, Search Engines, & Difference from Dark Web | Britannica

[2] Ahmia - Wikipedia

[3] Terms of Service — Ahmia

[4] Best Dark Web Search Engines 2026 - Tor Search Guide | TorWiki

[5] Torch Search Engine: What It Indexes and What It Misses

[6] Haystak Dark Web Search Engine: What the Paywall Hides

[7] Dark Web Search Engines: How Torch and Ahmia Work

[8] Torch Search Engine — Dark Web Onion Link & Guide (2026)

[9] Ahmia — Search Tor Hidden Services

[10] Best Dark Web Search Engines in 2026 (Safe Use)

[11] Not Evil — Dark Web Search Engine Onion Link & Guide (2026)