Presearch (search engine)

Presearch is a decentralized, privacy-oriented metasearch engine built on blockchain technology. Launched in 2017, it is developed by Presearch.org, originally a Canadian-based organization. The platform enables users to query search engines through a distributed network operated by independent node operators.^[1][2]

Features

Presearch offers a customizable interface that allows users to access multiple search providers, including Google, Bing, and DuckDuckGo.^[3] The platform includes a keyword staking system where users can allocate PRE tokens to promote websites in search results. In late 2024, the project introduced a search ad format called "Takeover Advertising," and in early 2025 it launched "Spicy Mode," an optional feature for filtering adult content.

Privacy and architecture

Presearch’s architecture uses a decentralized network of community-operated nodes to process search queries. According to project documentation, the platform is designed to reduce centralized data collection and does not store users’ IP addresses or search histories. It also implements techniques to limit browser fingerprinting.^[4][5]

Token system

The platform uses PRE, an ERC-20 token on the Ethereum blockchain. Users may earn tokens by running nodes or performing searches. Tokens can also be used to stake on keywords in the platform’s ad system.

Node network

The Presearch network includes tens of thousands of independently operated nodes that route search traffic. Node operators are rewarded with PRE tokens. As of 2025, the software stack is partially open-source. A 2021 academic review of decentralized search engines noted that Presearch’s use of community nodes offers potential for scalability and privacy, but may face limitations compared to centralized systems in indexing and query speed.^[6]

Governance and development

The project is maintained by a core development team with input from its broader community. The developers have outlined plans to decentralize governance and increase transparency through open-sourcing more of the platform. In 2025, Presearch launched a WeFunder campaign to raise $1.2 million to accelerate the rollout of a decentralized web index and enhance various platform features.^[7]

Reception

In 2021, Google added Presearch as a default search engine option on Android devices in the European Union, following antitrust rulings regarding search engine choice.^[8] The service has been featured in industry publications and included in PCMag’s list of alternative search engines focused on privacy.^[9] A 2023 privacy-focused review by NicFab described Presearch as innovative and open, but noted that it may require a learning curve for less technical users.^[10]