Yahoo started in 1994 as a web directory, from 1996 AltaVista was offered additionally, if the catalogue did not show any correspondence. Yahoo comes from the USA and was developed by Jerry Yang and David Filo. In 1997, Yahoo introduced an e-mail service, other products followed, today Yahoo is a web portal (access to web products such as web, image, video, news search, mail, instant messaging, soping, community services and more). Since 1998, Inktomi has been used as a search engine in addition to the catalogue. In 2002, Yahoo gave up catalogue search and switched to Google. From 2003, Yahoo! Search had its own web crawler-based search engine. In 2011 they switched to Bing, in 2015 they switched to Google and since 2019 Bing is used again.

Language Multilingual

Launched Yahoo started in 1994 but offers a web search engine since 1996.
Closed No

Developer Yang, Jerry and David Filo

Country of Origin US America

1996 - [...] Yahoo Inc

Topic Universal

Region No Limitation

Technical functionalities
Robot/Crawler based, algorithmic search
Web Portal
Search Interface / Search API

Used SeEn AltaVista
Google Search Engine

Robot: Slurp (originaly: Inktomi Slurp) (Source)

Older Version Internet Archive / WebCite

Danny Sullivan (2004): Search Engine Timeline
»Late 1994 - Yahoo launches.«
»3/5/95 - Yahoo incorporated.«
»Jun. 1996 - AltaVista partners with Yahoo, becomes preferred search engine used when a match is not found in the Yahoo catalog.«
»3/12/97 - UPS adds button to home pages of Infoseek, Lycos and Yahoo to allow visitors to directly reach a package tracking form.«
»4/29/97 - Yahoo's Netscape Guide by Yahoo debuts, replacing the Netscape Destinations page«
»7/16/97 - Excite, Infoseek, Lycos and Yahoo -- along with CNET, announced they are going to work together to promote self-regulation of the Internet.«
»7/29/97 - Yahoo pays off Visa to get out of Marketplace site deal, freeing it to pursue other deals with retailers within the main site. The payoff causes a $20 million loss for what would have been a profitable (albeit small) quarter. A new deal with Visa is also announced.«
»8/26/97 - News.Com reports Yahoo and CDnow are to sign partnership deal.«
»9/1/97 - Yahoo Australia & NZ launched.«
»10/7/97 - GTE files suit against Yahoo, Netscape and Baby Bells alleging they are limiting Internet yellow pages competition after changes to the Netscape Guide.«
»10/8/97 - Yahoo adds email service and announces it plans to acquire Four11.«
»10/21/97 - Microsoft and Yahoo announce agreement to redistribute Yahoo listings within«
»11/4/97 - Yahoo announces Scandinavian editions.«
»11/24/97 - Yahoo announces comparison shopping search service. Excite's similar service launches two days later, on Nov. 26.«
»11/25/97 - Yahoo debuts new search page results look. A more prominent page header directs people to related news stories, events, AltaVista results and web sites.«
»12/8/97 - Yahoo hacked. Message warned visitors of fake virus attack.«
»12/12/97 - Yahoo hit by first scam based from its free email service.«
»1/5/98 - Yahoo invests $5 million in free web page provider GeoCities and announces cross-promotion agreement.«
»2/23/98 - Yahoo launches branded credit card in conjunction with Visa.«
»3/9/98 - Yahoo Launches Instant Messaging.«
»4/3/98 - Yahoo begins beta test of new look for home page and within the site.«
»4/13/98 - Yahoo posted a US $4.3 million quarterly profit, the largest to date for any search service.«
»5/9/98 - Yahoo unveils new look.«
»5/18/98 - Inktomi announced as Yahoo's new partner for results when a search does not match Yahoo's own listings.«
»6/8/98 - Yahoo announces intent to purchase online mall provider Viaweb.«
»6/9/98 - Yahoo launches Spanish-language service, Yahoo en espaqol.«
»8/17/98 - Excite debuts beta test of new community service, and Yahoo follows suit the next day. The idea behind both services is to allow users to create "communities" or identity areas that revolve around a particular topic. For example, a community might focus on a family, a business or even a television show.«
»Jan. 1999 - Yahoo announces it is to purchase GeoCities.«
»Feb. 1999 - Yahoo introduced a $199 express listing request service. The service doesn't guarantee that a site will be listed, but it does assure that a site will be reviewed and given a yes or no response within 7 days.«
»Apr. 1999 - Yahoo announces its to acquire online audio/video company in a $5.7 billion stock swap.«
»Aug. 1999 - Business Week reports that Yahoo has been in talks to purchase Excite@Home, while Excite@Home president George Bell flatly denies the rumor.« Source

JOSHUA YU (2013): »Yahoo! is best known for its web portal search engine (Yahoo! Search). The search engine is available at and on it’s main home page, where you can find anything across the Web. Yahoo! is one of the most popular sites in the United Sates; roughly 700 million people visit their main page every month. Yahoo! reports that it has “more than half a billion consumers every month in more than 30 languages”.

It’s important to note that Microsoft and Yahoo! are working together where Yahoo! Search’s backend is being powered by Bing (which means all of Yahoo!’s search results should be identical to Bing’s). In addition to Yahoo!’s Web Search, it has specialized search services including: Local, Product Search, Answers, Maps, Video Search, Directory Search, Mobile Search, Yahoo! Search Blog, Image Search, and News Search. You can see the entire listing here.

On top of its search engine, Yahoo offers a variety of services; some popular ones include: Yahoo! Mail, Yahoo! Finance, Yahoo! News, Yahoo! Games, Yahoo! Weather, and Yahoo! Sports. Yahoo!’s home page can be a one-stop shop for popular online content, and it has endless applications for your everyday activities.« Source

Sullivan, Danny (Mar 3, 2003): »Ch-Ch-Ch-Changes: ... Yahoo (1994; reborn 2002): Before Google, before AltaVista, there was Yahoo. Despite all the changes in the search space over the years, Yahoo has remained one of the most popular search destinations on the web. Yahoo stood out from its early competitors by using humans to catalog the web, a directory system. Crawler-based results from its partners only kicked in if there were no human-powered matches. That actually made Yahoo more relevant than competitors for many years, until the Google-era ushered in crawler-based results that were both comprehensive and highly relevant. Yahoo caught up with that era in October 2002, when it dropped its human-powered results in preference to Google's results. The Yahoo Directory still exists and is leveraged by the company, but today's Yahoo is a far different creature than what it was for all those years before.« Source

Tim Mayer (August 08, 2005): »As it turns out we have grown our index and just reached a significant milestone at Yahoo! Search – our index now provides access to over 20 billion items. While we typically don't disclose size (since we've always said that size is only one dimension of the quality of a search engine), for those who are curious this update includes just over 19.2 billion web documents, 1.6 billion images, and over 50 million audio and video files.« Source


»Yahoo started out as "Jerry's Guide to the World Wide Web," named after co-founder Jerry Yang. The name Yahoo is an acronym for "Yet Another Hierarchical Officious Oracle," but Yang and co-founder David Filo apparently looked up the word in the dictionary, and insist they selected the name because they liked the general definition of a yahoo: "rude, unsophisticated, uncouth." Today, both Yang and Filo maintain the title of "Chief Yahoo."« Source

Critical points

Features & Functionality


Example results page for "sand": Source

References & further Publications

Wikipedia (EN):!
Wikipedia (Others):!

Other Sources

Yahoo!. Online available at SEO Logic. URL:
Dresel, R., et al.: Evaluation deutscher Web-Suchwerkzeuge: Ein vergleichender Retrievaltest. In: Information-Wissenschaft und Praxis, Volume 52, Issue 7, October 2001, Pages 381-392. URL:
Danny Sullivan (2004): Search Engine Timeline URL:
Sullivan, Danny (Mar 3, 2003): Where Are They Now? Search Engines We've Known & Loved URL:
SOLOCHEK, JEFFREY S. (February 22, 2016): Pasco schools block Yahoo! search engine URL:
mm-newsdesk (19.11.2015): Yahoo soll Suchmaschine verkaufen URL: (19.10.16): WERDEN ANDERE FOLGEN? Nach Skandal: Yahoo verliert Suchmaschinen-Partner URL:
Hannes Ben (Oct 11, 2016): The key APAC search engine updates you need to know about URL:
WAYNE E. HARDING (1997): How To Find It On The Net URL:
Loren Baker (2005): Yahoo Search Marketing Launched, Farewell Overture URL:
Danny Sullivan (2003): Yahoo To Buy Overture URL:
Yahoo SEarch Blog (2011): Search Alliance Global Algo Transition Update URL:
Gina Trapani (2006): AllTheWeb Livesearch suggestions URL:
AlltheWeb Livesearch URL:
Yahoo! Company Timeline URL:
Yahoo! PR (April 7, 2003): Yahoo! Introduces New Yahoo! Search URL:
Yahoo! Search blog (2004-) URL:

Created: 2013-03-11