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Blekko Screenshot.png
Blekko home page
Web address www.blekko.com
Type of site Search engine
Available in English
Launched November 1, 2010
Alexa rank positive decrease 4,382 (April 2014)[1]
Current status Active

Blekko, trademarked as blekko (lowercase),[2] is a company that provides a web search engine with the stated goal of providing better search results than those offered by Google Search, with results gathered from a set of 3 billion trusted webpages and excluding such sites as content farms. The company's site, launched to the public on November 1, 2010, uses slashtags to provide results for common searches. Blekko also offers a downloadable search bar.


The company was co-founded in 2007 by Rich Skrenta, who had created Newhoo, which was acquired by Netscape and renamed as the Open Directory Project.[3] Skrenta "is still remembered most for unleashing the Elk Cloner virus on the world".[4] Blekko has raised $24 million in venture capital from such individuals as Netscape founder Marc Andreessen and Ron Conway, as well as from U.S. Venture Partners and CMEA Capital.[5] The company's goal was to be able to provide useful search results without the extraneous links often provided by Google. Individuals who enter searches for such frequently searched categories as cars, finance, health and hotels will receive results prescreened by Blekko editors who will use what the New York Times described as "Wikipedia-style policing" to weed out pages created by content farms and focus on results from professionals.[6] Use of slashtags will restrict the set of search results to those matching the specified characteristic and a slashtag will be automatically added for search categories with prescreened results.[7] Queries related to personal health are limited to a prescreened list of 76 sites that Blekko editors have determined to be trustworthy, excluding many sites that rank highly in Google searches.[3] As of Blekko's launch date, its 8,000 beta editors had developed 3,000 slashtags corresponding to the site's most frequent searches.[7] The company hopes to use editors to develop prepared lists of the 50 sites that best match its 100,000 most frequent search targets.[3] Additional tools allow users to see the IP address that a website is running on and let registered users label a site as spam.[8]

At the time, Blekko announced plans to earn revenue by selling ads based on slashtags and search results. The company also planned to provide data on its algorithm for ranking search results, including details for inbound links to specific sites.[6]

As part of a permanent post in Blekko's help section is the following "Web search bill of rights":[9]

  1. Search shall be open
  2. Search results shall involve people
  3. Ranking data shall not be kept secret
  4. Web data shall be readily available
  5. There is no one-size-fits-all for search
  6. Advanced search shall be accessible
  7. Search engine tools shall be open to all
  8. Search and community go hand-in-hand
  9. Spam does not belong in search results
  10. Privacy of searchers shall not be violated

One writer referred to the bill of rights as "what we assume is a poke at Google".[10][11]

In 2011, Blekko announced blocking "content farmy sites", to reduce spam, in line with its bill of rights.[12]

In May 2012, Mozilla announced an "instant search" browser plugin for Firefox designed to cache repetitive search requests, in partnership with Blekko.[13]

In August 2012, Blekko put all its SEO statistics behind a paywall,[14] despite previously declaring that "ranking data shall not be kept secret"[11] in its bill of rights.[14]


Blekko uses an initiative called slashtags,[2] consisting of a text tag preceded by a "/" slash character, to allow ease of searching and categorise searches. System and pre-defined slashtags allow users to start searching right away. Users can create slashtags after signup, to perform custom-sorted searches and to reduce spam.[6]


The following features are available to all users:


Blekko offers a downloadable browser toolbar or search bar which changes default search and home page URLs of the user's web browsers.[15]


In 2010, John Dvorak described the site as adding "so much weird dimensionality" to search, and recommended it as "the best out-of-the-chute new engine I've seen in the last 10 years".[8] In Matthew Rogers' review of the site, he found it "slow and cumbersome", and stated that he did not understand the necessity or utility for slashtags.[16] In his PCMag.com review, Jeffrey L. Wilson expressed approval of some search results, but criticized the site's social features which "bog down the search experience."[17]


  1. ^ "Blekko.com Site Info". Alexa Internet. Retrieved 2014-04-01. 
  2. ^ a b "About". blekko.com. Retrieved December 18, 2011. 
  3. ^ a b c Efrati, Amir. "Start-Up Aims at Google: Blekko.com Taps Users to Narrow Results, Avoid Spam Sites", Wall Street Journal, November 1, 2010. Accessed October 31, 2010.
  4. ^ "Prank starts 25 years of computer security woes". CTV.ca. Associated Press. August 31, 2007. 
  5. ^ Wollman, Dana (November 2, 2010). "Blekko launches human-driven search engine". News & Record. Associated Press. Retrieved November 3, 2010. 
  6. ^ a b c Miller, Claire Cain. "A New Search Engine, Where Less Is More". New York Times, October 31, 2010. Accessed October 31, 2010.
  7. ^ a b Van Grove, Jennifer. "Alternative search engine Blekko launches", CNN, November 1, 2010. Accessed November 1, 2010.
  8. ^ a b Dvorak, John C. "Blekko: The Newest Search Engine", PC Magazine, November 1, 2010. Accessed November 1, 2010.
  9. ^ "What is Blekko". help.blekko.com. Retrieved September 22, 2013.
  10. ^ Hales, Paul (November 1, 2010). "New Search Engine Takes a Shot at Google". Thinq. 
  11. ^ a b Jeffries, Adrianne (February 1, 2011). "Upstart Search Engine Blekko Blocks Demand Media and Other "Content Farms"". New York Observer. 
  12. ^ Schonfeld, Erick (January 31, 2011). "Blekko Bans Content Farms Like Demand Media's eHow From Its Search Results". TechCrunch. 
  13. ^ Rosenblatt, Seth (May 22, 2012). "Firefox flirts with Blekko for 'instant' search". CNET.com. 
  14. ^ a b c Keays, Roger (August 14, 2012). "Blekko Paywall Their /SEO Secrets". SunburntSEO.com. Retrieved August 15, 2012. 
  15. ^ Watson, Cheralyn (January 12, 2012). "How do I remove blekko as my homepage and default search engine in Internet Explorer (IE)?". help.blekko.com. Retrieved April 10, 2012. 
  16. ^ Rogers, Matthew (November 1, 2010). "Blekko, the "Slashtag" search engine is slow, cumbersome, and just plain broken". DownloadSquad.switched.com. 
  17. ^ Wilson, Jeffrey L. (November 3, 2010). "Blekko". PCMag.com. 

External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Blekko — Please support Wikipedia.
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6 news items

PR Leap (press release)
Fri, 29 Aug 2014 07:02:59 -0700

Search visibility on Google, Yahoo, Bing and Blekko within minutes of your press release being published on PRLeap. Extended reach for your news, including Google News, Bing News, Topix and Moreover. Guaranteed syndication for your news to 50 news ...
Thüringische Landeszeitung
Mon, 15 Sep 2014 05:56:15 -0700

Die Zahlen sind eindeutig: 95 Prozent Marktanteil hat Google unter den Suchmaschinen in Deutschland. Die Konkurrenz teilt sich das restliche Stückchen vom Kuchen. Die größte unter den kleinen Suchmaschinen ist Bing von Microsoft, die mit Yahoo ...


Fri, 22 Aug 2014 08:33:04 -0700

Ergebnisse gibt es hier auch in deutscher Sprache, genauso wie bei den kleineren Qwant (www.qwant.com) und Exalead (www.exalead.com) aus Frankreich sowie Blekko (www.blekko.com) aus den USA. Für den an Google gewöhnten Nutzer ist der ...


Mon, 25 Aug 2014 15:12:32 -0700

Eine Suchmaschine, die das Internet fast genau so gut abdeckt wie Google und Bing, ist Yandex aus Russland. Ergebnisse gibt es dort in deutscher Sprache, genauso wie bei den kleineren Qwant und Exalead aus Frankreich sowie Blekko aus den USA.
Blog Kaspersky Lab
Fri, 22 Aug 2014 05:33:29 -0700

El borrado remoto es una herramienta antirrobo, Private Search permite realizar búsquedas en Google, Bing, DuckDuckGo, Blekko y Yahoo sin ser rastreado. La Conexión Segura es un VPN inteligentede disconnect.me, cuyo servicio básico es gratuito.
Asociación de Internautas
Fri, 15 Aug 2014 00:24:22 -0700

Blekko: buscador poco popular pero muy interesante. Podríamos decir que en cierto sentido es la actual competencia de DuckDuckGo, aunque ni de lejos se le acerca en funcionalidades, ya que se centra en la sencillez. Su privacidad es muy buena (de ...

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