System and method for dynamically limiting robot access to server data
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United States of America Patent
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Dec 9, 2003
Grant Date -
N/A
app pub date -
Oct 20, 1999
filing date -
Oct 20, 1999
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Abstract
A method for automatically limiting access of a client computer to data objects accessed through a server computer dynamically prevents robots or webcrawlers from obtaining too much of the server database and from dramatically reducing server performance. The method includes the steps of receiving a request for a data object, recording a log entry for the request, calculating client request values, and refusing the request if a client request value exceeds one of a set of corresponding predefined maximum request values. Each log entry contains a client identifier, timestamp, and at least one data object identifier for the request. The client request values preferably include a request frequency, which is compared with a predefined maximum request frequency, and a cumulative data request, which is compared with a data access threshold. If the client is refused access, the client identifier is added to a deny list, and future requests from the client are automatically denied. The calculated cumulative data request may be for a single client, or it may be for all clients, in order to detect a robot that is divided among multiple client identifiers. The cumulative data request check may consider the total percentage of server resources being given away, or a pattern in the requests. Also provided is a data protection system containing a log file, a request analyzer, and a dynamically-generated deny list. Requests to the server are intercepted and sent to the data protection system first.
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- 15 United States
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Patent Owner(s)
- SNAPCHAT, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Eichstaedt, Matthias | San Jose, CA | 32 | 2005 |
Emens, Michael Lawrence | San Jose, CA | 14 | 1361 |
Kraft, Reiner | Gilroy, CA | 138 | 12137 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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