|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Crawler Ettiquette
We have a research project at OCLC that does web crawling. We created an email account ([email protected]) that admins could contact and posted the email address at the web site from which the crawling was done. That way when admins see our IP address in their firewall logs (from attempted http connects), they could browse to that address and see an explanation of the project and send email to the contact address to get more info or request removal from the IP space being crawled. See http://132.174.5.40 for our set up. ...Kevin O'Neil -----Original Message----- From: Deepak Jain [mailto:[email protected]] Sent: Wednesday, January 23, 2002 2:35 PM To: [email protected] Edu Subject: Crawler Ettiquette I figured this was the best forum to post this, if anyone has suggestions where this might be better placed, please let me know. A University in our customer base has received funding to start a reasonably large spider project. It will crawl websites [search engine fashion] and save certain parts of the information it receives. This information will be made available to research institutions and other concerns. We have been asked for recommendations on what functions/procedures they can put in to be good netizens and not cause undo stress to networks out there. On the list of functions: a) Obey robots.txt files b) Allow network admins to automatically have their netblocks exempted on request c) Allow ISP's caches to sync with it. There are others, but they all revolve around a & b. C was something that seemed like a good idea, but I don't know if there is any real demand for it. Essentially, this project will have at least 1Gb/s of inbound bandwidth. Average usage is expected to be around 500mb/s for the first several months. ISPs who cache would have an advantage if they used the cache developed by this project to load their tables, but I do not know if there is an internet-wide WCCP or equivalent out there or if the improvement is worth the management overhead. Because the funding is there, this project is essentially a certainty. If there are suggestions that should be added or concerns that this raises, please let me know [privately is fine]. All input is appreciated, DJ
|