How accurate is a guess?

General Discussion about IP Address Lookup caveats, technology, ideas, etc.

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How accurate is a guess?

Postby ingig on Wed Apr 05, 2006 4:35 pm

Does the system always return the correct country or could it return a completely wrong country(e.g. instead of uk it would return china)?

If that happens, what do you think the % is?
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Postby robocoder on Thu Apr 06, 2006 7:59 am

It could be a complete wrong country for a number of reasons: the country in the whois information is that of the organization for which the net block has been allocated or assigned. First, it is the organization's responsibility to update that information. Second, it may not reflect organizations operating internationally (example: the ESA). Third, in some cases, AP (Asia Pacific) or EU (European Union) are used.

It would be helpful if an admin chimed in here on what safeguards are in place to prevent abuse, but I'm speculating that it might be possible to corrupt the hostip database with false updates (e.g., change the Country when you "Make a correction").
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Postby ingig on Thu Apr 06, 2006 8:48 am

Do you think there is any % available? Maybe the admin only has the answer for that?
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Postby bfolkens on Fri Apr 07, 2006 2:30 pm

robocoder: all the reasons you listed above could be correct, esp. that of the initial priming of the db - both of whois information and traceroutes, etc... Also, as major netblock contributions come in (lots of times from ISP's) - I actually do quite a bit of manual verification to make sure we don't annihilate the db with large erroneous updates.

The single /24 updates from the front-page use a few checkpoints - but mostly the CAPTCHA and a few things in the backend... Also - the updates are logged as well (no matter what size netblock).
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