Tuesday, 09 November 2021 17:15

Best List of Deep Web Research Tools 2021

By 

According to experts, traditional search engines such as Yahoo and Google only capture roughly 1% of the information available on the Internet. The rest of the data is considered to be hidden in the deep web, also known as the invisible web. So, where can you find the rest of this data? This list contains 100 tips and tools to assist you in making the most of your Internet searches.

Semantic Search Tools and Databases

Semantic search can help a searcher's intent by analyzing the entity links between sentences, words, possible contextual meanings, and the person's search history.

One of the biggest benefits of a semantic search tool is data mining which means it analyses unstructured data from multiple sources. The overall volume of data, or a large fraction of unstructured data, originates from a variety of sources. A semantic search tool integrates and interprets data from numerous sources to deliver the following insights: user history, location, global search history, research characteristics such as spelling and other variations, publications linked from Domains, and word co-occurrence.

We have collected a list of the best Semantic Search Tools and Databases from a broad pool of index databases.

  • Boxxet ― About news, blogs, videos, photos, armor, and much more topics.
  • DBpedia ― DBpedia is a platform for data, tools, and services.
  • DuckDuckGo ― It is a feature-rich semantic search engine that provides numerous reasons to abandon Google. Searches are classified as classic, information, shopping, or their own spin-off from Google.
  • DATA.GOV ― Data, tools, and resources for conducting research, developing web and mobile applications, designing data visualizations, and more can be found here.
  • Gnod ― It is kind of a search engine for music you don't know about. Gnod is a self-adapting system that learns about its surroundings by asking its visitors what they like and dislike. In the case of Gnod, everything revolves around music.
  • Google News ― Google News is a news aggregator service created by Google. It displays a constant flow of links to articles organized by publishers. 
  • GreyNet International ― GreyNet, or the Grey Literature Network Service, is a service that facilitates dialogue, research, and communication between individuals and organizations working in the field of grey literature.
  • Internet Archive (Wayback Machine) ― The Internet Archive is a library that provides free universal access to books, movies, music, and more. As well as 624 billion archived web pages.
  • Kartoo ― Best search engine and human edited web directory. KartOO assists users in quickly finding the most relevant website for a given query. 
  • Metaglossary.com   ―  It’s a metasearch tool that enables the user to look up the meanings and definitions of over two million words, terms, expressions, acronyms, etc.
  • OpenGrey ― OpenGrey is a multidisciplinary European database that covers science, technology, biomedical science, economics, social science, and humanities.
  • Quintura ― Quintura is a visual search engine that includes an interactive search cloud (map) with images to help you refine your search.
  • Stumpedia ― A personalized social and real-time collaborative discovery best research tool that indexes, organizes, and reviews the internet using human participation.
  • Swisscows ― Swisscows is a data-secure Google alternative. A search engine that protects your privacy. They never collect, store, or track data.
  • Semager.de ― SEMAGER's Semantic Search returns related keywords and webpages that match the intent of your search.
  • SSRN ― SSRN is devoted to the rapid global dissemination of research and is composed of a number of specialized research networks.
  • TechXtra ― Free Engineering Research, White Papers, Case Studies, Magazines, and eBooks are found here.
  • UW Libraries Articles & Research Databases ― A collection of databases where you can find citations, full-text articles, and other materials.
  • Zotero ― Free and simple research tool for collecting, organizing, quoting, and sharing research.

Metasearch Engines

A Metasearch engine has an advantage over a single search engine since it can obtain more results with the same amount of effort. It also saves users from having to manually type in searches from several engines to find materials. Check out the resources for the best metasearch engines.

  • Carrot2 ― Carrot2 is an open-source engine for cluster analysis search results. It can group search results from various sources and generate a small collection of documents. 
  • Ceek.jp ― Ceek is the Japanese language unified metasearch engine. There is a robot-style news search that pulls only text-based headlines and articles from various sources.
  • CurryGuide ― global metasearch engine and web portal search aggregator for searching the latest news.
  • Entireweb ―  Entireweb is a metasearch engine that finds and displays relevant websites, images, and real-time results.
  • ETools.ch ― This Transparent metasearch engine meets Swiss standards. With a single click, you can query multiple search engines at the same time. 
  • Fagan Finder ― Fagan Finder is a collection of tools and a metasearch engine that can help you find anything online. This is an excellent starting point.
  • FuzzFind Web Trends ― FuzzFind is a web-based metasearch engine mashup that combines user-attractive results from top search engines (Google, Bing, and Yahoo! ), social bookmarking sites (del.icio.us), and real-time web trends.
  • Mamma ― Mamma is a highly regarded type of meta-web search engine that provides precise query elements. This meta-search engine returns images, videos, web pages, news, and local results. 
  • Search Engine Colossus ― With the search engine colossus international directory of metasearch engines, you may find search engines from all over the world. 
  • Yamli ― Yamli Arabic Search is a web crawler focused on providing more relevant list items to an Arabic inquiry by extending it to its most frequently used Latin portrayals.

General Search Engines and Databases

This small list of search engines and research tools should be useful when Google or even Google Advanced Search returns disappointing results, or when you want to broaden your research by looking at other sources.

  • DeepDyve ―  DeepDyve is the largest online rental service for scholarly research, with thousands of academic publications at your fingertips. 
  • Google  ― Google is an internet search engine. It uses a proprietary algorithm to retrieve and order search results in order to provide the most relevant and dependable sources of possible data.
  • Infoplease ―  Infoplease understands the importance of having reliable sources. It is a reference and learning site that combines the contents of an encyclopedia, a dictionary, maps, and several fact-filled almanacs. 
  • Microsoft Bing  ― Bing is a search engine created and operated by Microsoft, replacing its former Live Search, Windows Live Search, and MSN Search offerings.
  • Pipl ― Pipl allows you to search for people by name, email address, phone number, or username. Personal and professional information, contact information, and other details are included in the results. 
  • Silobreaker ― Silobreaker is a tool that assists security, business, and intelligence professionals in making sense of the vast amount of data available on the internet.
  • The WWW Virtual Library ― The World Wide Web Virtual Library was the first content index on the World Wide Web, and it continues to serve as a directory of e-texts and information sources on the web. 
  • Yahoo ―  Yahoo! is an Internet portal that incorporates a search engine and a directory of World Wide Web sites organized in a topic organizational chart.

Academic Search Engines and Databases

Academic search engines have overtaken all other resources for finding research papers and other scholarly sources. An academic database is a collection of information that is commonly used for research and writing, including access to academic journals. Check out a comprehensive list of Academic resources.

  • Academic Info ― A comprehensive set of accessible data from academic subject entries and data as an instructional subject index.
  • AJOL – African Journals Online ― African Journals Online (AJOL) is the world's largest and most authoritative platform for scholarly journals published in Africa. 
  • Directory of Open Access Journals (DOAJ) ― DOAJ is a community-curated online directory that indexes and provides access to high-quality, open access, peer-reviewed journals. 
  • Google Scholar Search ― Google Scholar empowers you to look explicitly for academic writing, including peer-evaluated papers, theories, books, preprints, edited compositions, and specialized reports from all wide spaces of examination. 
  • HighWire Press ― HighWire Press is a useful medical literature search engine that anyone with access to the internet can use for free. 
  • Intute - Repository search ― Intute was a free Web service aimed at students, teachers, and researchers in further and higher education in the United Kingdom.
  • Metapress ― Metapress is a media company that publishes breaking news in the fields of technology, business, entertainment, science, and health. 
  • Virtual Learning Resource Center ― A Google alternative safe search engine for students that provides information and reference sites such as art, social sciences, social issues, social problems, history, biography, magazines, newspapers, encyclopedias, science, math, chemistry, biology, and dictionaries.
  • WorldCat ― WorldCat is the world's most comprehensive database of information about library collections. OCLC provides quality, discoverability, and value.

Scientific Search Engines and Databases

The scientific community maintains a large number of databases that can provide a wealth of information but may not appear in standard search engine results. Check them out to see if you can find what you're looking for.

  • BASE - Bielefeld Academic Search Engine ― The BASE is one of the most extensive web search tools in the world, especially for academic open access web assets. BASE collects, standardizes, and records this information. 
  • CiteSeerx ― CiteSeerx aims to improve scientific literature dissemination by improving functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness of access to scientific and scholarly knowledge.
  • Google Scholar Search ― Google Scholar empowers you to look explicitly for academic writing, including peer-evaluated papers, theories, books, preprints, edited compositions, and specialized reports from all wide spaces of examination.
  • Gene Ontology ― The GO Consortium's mission is to create an up-to-date, comprehensive computational model of biological systems, from the molecular level to larger pathways, cellular, and organism-level systems.
  • Scitation ― The most influential news, commentary, analysis, and research in the Physical Sciences can be found on Scitation.
  • Science Research ― ScienceResearch.com is a free, publicly accessible deep web search engine that returns high-quality results by submitting your search query in real-time.
  • WorldWideScience ― WorldWideScience.org is a global science gateway comprising national and international scientific databases and portals. WorldWideScience.org accelerates scientific discovery and progress by providing a one-stop search of databases from around the world. 

Best Deep Web Search Engines

The Deep Web refers to data that is not indexed by any standard search engine, such as Google or Yahoo. The 'Deep Web' refers to all web pages that search engines cannot find, such as user databases, web forums that require registration, webmail pages, and pages behind paywalls. The best deep web search tools and databases are listed here.

  • Ahmia ― Ahmia searches for hidden services on the Tor network. You will need the Tor browser bundle to access these hidden services. In Ahmia, abusive content is strictly prohibited. 
  • BizNar ― Biznar is a deep web search engine that returns high-quality results by submitting your query to multiple search engines and compiling, ranking, and removing duplicates from the results.
  • Directory of Open Access Journals ― DOAJ is a community-curated online directory that indexes and provides access to high-quality, open access, peer-reviewed journals.
  • Elephind ― Elephind.com allows family historians, genealogists, and researchers to search historic digitized newspaper archives from around the world. It allows you to search for free across multiple newspaper websites at the same time.
  • The Hidden Wiki ― The Hidden Wiki was a dark web MediaWiki wiki that operated as Tor hidden services and could be edited anonymously after registering on the site. 
  • Spokeo ― Spokeo is a people intelligence service that allows you to search, connect, and learn about the people you're dealing with. Professionals use it to find new customers or to prevent fraud.
  • WorldCat ― WorldCat is the world's largest network of library content and services. WorldCat libraries are committed to making their resources available on the Web. From here, you can search for books, music, videos, articles, and much more.

Custom Search Engines

A custom search engine is one that can be built by anyone. The developers can select which websites to include in the search engine and limit the results to only those domains. The traditional approach was to take a template from an existing open source project.

  • Google Programmable ― Google Programmable Search Engine enables you to create a search engine for your website, your blog, or a collection of websites. It is a platform provided by Google that allows web developers to feature specialized information in web searches.
  • Google ― Google is an internet search engine. It uses a proprietary algorithm to retrieve and order search results in order to provide the most relevant and dependable sources of possible data.
  • Microsoft Bing ― Bing is a search engine created and operated by Microsoft, replacing its former Live Search, Windows Live Search, and MSN Search offerings.
  • Yahoo ― Yahoo! is an Internet portal that incorporates a search engine and a directory of World Wide Web sites organized in a topic organizational chart. 

Collaborative Information and Databases

The Collaborative Database (CODABA) is a web-based platform that contains entries on plans and programs in capability development and in-service capabilities that are shared within the community of all participating Member States. 

  • Digg ― Digg is a social networking website featuring user-submitted news stories.
  • Reddit ― Reddit is an American social news aggregation, web content rating, and discussion website.
  • StumbleUpon ― StumbleUpon is a discovery and advertising engine that recommends web content to its users.
  • Technorati ― Trending news, entertainment, sports, videos, personalized content, web searches, and much more are all part of Technorati's start-up.
  • Twine ― Twine is a free and open-source tool for creating interactive fiction in the form of web pages. It is available for Mac OS X, Windows, and Linux.

Hints and Strategies for Deep Web Search

Searching the deep web should be done differently, so use these strategies to get started.

Don't rely on old search methods. Be aware that approximately 99 percent of the content on the Internet does not appear in traditional search engines, so consider alternative methods of searching.

Look up databases. Enter your keyword along with "database" into any search engine to find any searchable databases (for example, "running database" or "woodworking database").

Obtain a library card. For users with an active library card, many public libraries provide access to research databases.

Maintain your knowledge. Reading blogs or other updated guides about Internet searches on a regular basis will keep you up to date on the latest information about Internet searches.

Investigate government databases. There are numerous government databases available that contain a wealth of information that you may be looking for.

Make a note of your databases. When you find useful databases, don't forget to bookmark them so you can return to them later.

Practice. The more you practice searching the deep web, the better you will become at it, just like any other type of research.

Don't give up. Researchers agree that the majority of the information hidden in the deep web is of the highest quality.

Helpful Articles and Resources for Deep Searching

Aside from the deep web search tools listed above, seek expert assistance and read these articles, and other resources to better comprehend the deep web.

  • Deep Web – Wikipedia ― Get the basics about the deep web as well as links to some helpful resources with this article.
  • Deep Web – AI3:::Adaptive Information ― This assortment of articles from the co-coiner of the phrase "deep web," Michael Bergman offers a look at the current state of deep web perspectives.
  • Specialized Search Engines List  ― AOFIRS has compiled a comprehensive list of different types of search engines, including web search engines, video search engines, meta-search engines, image search engines, academic search engines, blog search engines, directories, private search engine lists, people search engines, Q & A search engines, research reports.

AOFIRS

World's leading professional association of Internet Research Specialists - We deliver Knowledge, Education, Training, and Certification in the field of Professional Online Research. The AOFIRS is considered a major contributor in improving Web Search Skills and recognizes Online Research work as a full-time occupation for those that use the Internet as their primary source of information.

Get Exclusive Research Tips in Your Inbox

Receive Great tips via email, enter your email to Subscribe.