How search works
How search engines workThe five steps from discovery to rankingComponentsThe parts that make a search engine runCrawlingHow bots find and fetch your pagesIndexingHow a page gets stored so it can be foundCheck if indexedFour ways to confirm a page is on GoogleCrawling and indexing
Web crawlersGooglebot, Bingbot and the new AI botsGooglebotHow Google's crawler reads your siteRobots.txtRules, examples and a free testerXML sitemapCreate one, then submit it to GoogleCanonical tagPick the main version of a pageNoindex tagKeep a page out of search resultsRanking and results
Search engine rankingWhy one page appears above anotherGoogle ranking factorsWhat really matters, grouped simplyPageRankHow links pass value between pagesAlgorithmsTF-IDF, PageRank and modern rankingResults page (SERP)What each block on the page is forAI searchHow AI answers are built from the indexUnderstand
What is a search engineA plain definition with real examplesTypes of search enginesCrawler, meta, vertical, private and AIBrowser vs search engineTwo tools that people often mix upExplore
Best search enginesGoogle, Bing, DuckDuckGo and moreUses of search enginesThe everyday jobs that search handlesHistory of search enginesFrom Archie in 1990 to AI answersThe best search engines each solve a slightly different problem, so the right pick depends on what you value most. This guide compares ten of them on who they suit, whether they run their own index, how they treat your privacy and where they shine.
Google remains the most complete general search engine, while Bing is its strongest independent rival. For privacy, DuckDuckGo, Brave Search or Startpage are good choices, and regional engines such as Baidu, Yandex or Naver lead in their own languages.
Method
A search engine is only as good as the data behind it. We looked at four questions for every engine on the list.
An index is the stored copy of the web an engine searches. Only a few companies build a large one, while many engines rent results from Bing or Google.
Some engines link searches to an account to personalise results or ads. Others promise not to build a profile about you at all.
Some engines excel at local results, others at images, maps, shopping or a clean ad-light page.
A student, a privacy-minded reader and a traveller in Seoul will each be better served by a different engine.
We have not ranked engines with invented market-share figures, because public estimates vary between sources. If you want the background on how each engine finds pages, our guide to the components of a search engine explains crawlers, indexes and ranking systems.
Who powers what
Many engines on this list show results that come from someone else’s index. Choose an engine below to see where its answers come from.
Comparison table
This table sums up the whole list in one place, so you can compare engines at a glance. On a phone, scroll sideways to see every column.
| Engine | Own index | Privacy stance | Best for |
|---|---|---|---|
| Yes | Personalised, linked to your account if signed in | The widest coverage, plus maps, images and shopping | |
| Bing | Yes | Personalised, linked to a Microsoft account | Copilot answers, image search and rewards |
| DuckDuckGo | Mostly Bing, plus its own crawler | No search history stored, no profiles | Everyday private searching |
| Brave Search | Yes, independent | No user profiling | Private searching with its own results |
| Ecosia | Mainly Bing, some Google | Limited data, not sold | Supporting climate projects as you search |
| Yahoo | Bing in most countries | Standard ad tracking | News, finance and email users |
| Startpage | Google results via a proxy | No tracking or personal logs | Google quality without Google tracking |
| Baidu | Yes | Standard tracking, Chinese regulation | Chinese-language web |
| Yandex | Yes | Standard tracking, Russian regulation | Russian-language web |
| Naver | Yes, mixed with its own services | Account based | Korean-language web |
Privacy stances can change, so read each engine’s own privacy policy before relying on a promise. The summary above reflects how each service describes itself.
The big two
Most searches in the English-speaking world are answered, directly or indirectly, by one of these two indexes.
Google has the broadest index along with deep links into Maps, Images, Shopping and YouTube. It suits almost everyone, although signed-in searches feed its personalisation.
Microsoft’s engine runs its own crawler, which also supplies results to several other engines. Its Copilot answers sit beside the links, while image search is a long-standing strength.
Yahoo still draws visitors through its news, finance and email services. In most countries its web results come from Bing, with Yahoo’s own layout around them.
Because Google and Bing keep separate indexes, a page missing from one may appear in the other. That makes a second search worthwhile for anything serious.
Both companies also run free tools for website owners, called Google Search Console and Bing Webmaster Tools. These show which searches bring visitors to a site, which is useful if you publish content yourself.
Privacy first
Private search engines promise not to build a profile from your searches. They differ in where their results come from.
The best-known private option stores no search history while avoiding personalised results. Its links mostly come from Bing, so the quality feels familiar.
everyday privacyBrave answers from its own independent index, which means it does not depend on Google or Bing. That makes it a strong choice if you want privacy with genuinely different results.
own indexStartpage passes your query to Google, then returns the results without revealing who you are. It suits people who like Google’s results but dislike its tracking.
Google resultsEcosia also deserves a place in any privacy discussion. It uses the profit from search ads to fund tree planting along with other climate projects, while collecting limited data about its users.
So which is the best search engine for privacy? If you want your own index, Brave Search stands out. For results closest to Google, Startpage is the natural fit, while DuckDuckGo offers the smoothest all-round experience.
A private search engine protects what you type into it. Your browser, your internet provider or the websites you visit can still collect data, so pair it with a privacy-minded browser if that matters to you.
Local leaders
Outside the English-speaking web, a few engines lead because they understand one language or market especially well.
Baidu runs its own index built for the Chinese-language web, along with its own maps, encyclopedia and cloud services. It is the dominant engine in mainland China, where Google is not available.
Yandex keeps its own index focused on Russian-language search. It also offers maps, taxis or shopping services that feed into its results pages.
Naver blends web results with content from its own blogs, cafes and answers service. Many Korean users treat it as a portal rather than a simple search box.
Regional engines often understand local spelling, place names or slang better than global rivals. If you run a business in one of these markets, they deserve as much attention as Google.
New arrivals
A newer group of tools answers questions in full sentences instead of showing a list of links.
Perplexity, ChatGPT search or Microsoft Copilot search the web for you, then write a summary that cites the pages they used. Google offers something similar through AI Overviews, which appear above its regular results. These tools are handy for questions that need several sources stitched together.
AI answers also have real limits worth keeping in mind. A summary can misread a source or mix up details, so the citations are worth opening whenever the answer matters. Most AI answer engines also depend on a traditional search index behind the scenes, which is why classic search engines remain the foundation.
To see how these summaries sit on a results page beside ads or organic links, read our guide to what a SERP is.
Your pick
There is no single winner, so start from what matters most to you.
Changing your default engine takes less than a minute in any modern browser settings menu. For the wider context, our search engine basics guide explains how all of these engines find and rank pages. The history of search engines then shows how today’s line-up came about.
It also helps to give a new engine a fair trial of a week or two. First impressions are shaped by habit, so several days of everyday searches give a truer picture of whether the results suit you.
FAQ
Google is usually the most complete for general searches because of the size of its index. Accuracy also depends on the topic, so a second engine is worth trying for research.
Brave Search, DuckDuckGo and Startpage are the most common choices. Brave uses its own index, DuckDuckGo relies mostly on Bing, while Startpage shows Google results privately.
Mostly not. Both show results that come largely from the Bing index, with their own design and features layered on top.
Bing runs its own large index and works well for most everyday searches. Google still tends to cover more pages, particularly for very specific or local queries.
Yes. Many people keep one engine as the browser default, then switch to another for privacy or research. Each engine holds its own index, so results can differ.
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