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Search Engines Statistics:
Database Change Over Time

by Greg R.

The charts above compares how the sizes of the databases have changed over time, showing the results for the same eight search statements. Note how some shrank, some stayed the same, and other grew.

For more details, here are the numbers for the same 25 searches:

	Search Engine		Total from Dec. 2002		Total from March 2002		Total from Aug. 2001
	Google		9,732		8,371		6,567
	AlltheWeb		6,757		4,388		4,969
	AltaVista		5,419		3,432		3,112
	WiseNut		4,664		5,009		4,587
	HotBot		3,680		2,869		3,277
	MSN Search		3,267		2,523		3,005
	Teoma		3,259		1,839		2,219
	NLResearch		2,352		3,610		3,321

See also

• Relative Size of the search engines
• Freshness, or how up-to-date the record in the database are
• Total Size Estimate
• Overlap between the search engines
• Unique Hits hits from each
• Dead Links comparison