Subj : Re: Message Timezones
To   : douray
From : Tracker1
Date : Fri Apr 08 2022 09:55:54

On 4/6/22 20:12, douray wrote:
 >
 > Wow.  I wonder why they even bother if it can't at least get you
 > within a few miles of the actual location.  I live nowhere near
 > Roswell, NM, but that's where the geo-locate ip service thinks I am.

Mostly kickbacks/money... Paid services (fractions of a cent per lookup) 
will often perform much better, they often have data sharing deals with 
various ISPs as well to get more accurate info.

If the user is mobile, and likely to authorize the use of their position 
(browsers ask), then you can use the Geolocation API combined with a 
mapping system like OpenStreetMap, Google Maps or Azure Maps etc to then 
translate the location (lat/lon) into a physical location.  Down side, 
is at that point, the location info from the browser for a desktop 
device may then be less accurate.

Why try? Usually for a better user experience, especially if you are 
serving a site in multiple languages.  Although there's a preferred 
language interface in the browser as well (headers sent to server). It 
can also be used for marketing, tracking, diagnostics, etc.

Used to work at a SaaS provider that quick verified likely validity from 
low information (email, ip(optional)) and had an RTT target in the teens 
of ms range.  Lots of distributed special sauce on the backend.
-- 
Michael J. Ryan - tracker1@roughneckbbs.com
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