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THE CURRENT VERSION IS SEY 2003


Search Engine Relationships
by André le Roux
Dec. 2001

NOTE: This search engine relationships chart is NOT maintained. For updated info on search engine relationships, please refer to the current version of the Search Engine Yearbook.

Search Engine Relationships Chart: January 2003

NOTE: This search engine relationships chart is not updated continuously. For the most up to date information on search engine relationships, please refer to the current version of the Search Engine Yearbook and back issues of the EnginePaper Newsletter.

NOTABLE CHANGES: Since January 2003, Go.com switched to results supplied by Google and Overture acquired both AltaVista and AlltheWeb. At the time of writing, the impact of the Overture acquisitions on these reltionships is not yet clear, but I expect that it will cause a significant shuffle. Keep an eye on the EnginePaper Newsletter for further changes.

Search Engine Receives results from Sends results to
Google

OWN DATABASE

Directory listings from DMOZ

Main results to Yahoo, Netscape, iWon and AOL Search (and many smaller search engines).

Paid listings (from AdWords) to Teoma, Netscape, Ask Jeeves and AOL Search

Yahoo
OWN DATABASE

Main results from Google.

Paid listings from Overture.
None
AltaVista
OWN DATABASE

Directory listings from Looksmart.

Paid listings form Overture.
None
ODP
OWN DATABASE

Main Results to Lycos

Directory listings to Google

Some results to AllTheWeb & Teoma

Overture

OWN DATABASE

Some results from Inktomi

Main results to Go.com

Paid listings to Yahoo, MSN Search, Lycos, AltaVista, InfoSpac

Excite
Meta search. Receives results from Google, Looksmart, Inktomi, Ask Jeeves, About, Overture, FindWhat, Fast. None
AlltheWeb
OWN DATABASE None

Search Engine Relationships Chart: January 2002

Search Engine Receives results from Sends results to
Google
Directory listings from ODP Secondary results to Yahoo and Netscape
Yahoo
Secondary results from Google
Paid listings from Overture
None
AltaVista
Directory listings from Looksmart
Paid listings form Overture
None
Netscape
Main results from ODP
Secondary results from Yahoo!
Meta results from Overture
None
ODP
None Main Results to Lycos, Netscape & AOL Search
Directory listings to Google, Hotbot & Direct Hit
Some results to AllTheWeb
Excite
Paid listings from Overture Main results to Webcrawler
Northern Light
None None
Direct Hit
Directory listings from ODP
Paid listings form Overture
Main results to Hotbot
Popular listings to Lycos & iWon
Numbered results to AskJeeves
Lycos
Main results from ODP
Popular listings from Direct Hit
Paid listings from Overture
Some results from Fast
None
AllTheWeb
Main results from Fast
Some results from ODP
None

What To Do With This Info

This search engine relationships chart is useful for focusing your SEO efforts.

For example: Being listed at Google & DMOZ is very important, because they both “feed” a couple of other major engines (and many smaller ones). Once your site is in Google & DMOZ, it will eventually start popping up all over the place.

Note that search engine relationships change all the time. The chart above is only updated every January.

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Search Engine Book: Search Engine Year BookThis page is based on information contained in the Search Engine Yearbook 2003. For more detailed search engine information & help, please refer to the current version of the book.

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