We are constantly improving the traceurl.com service. Up to now the ratio of locatable IPs was not satisfying. Only about 70% of the accesses were resolved to a location. This was mainly because the hostip.info project does not yet have full coverage. The hostip.info project is a great idea and will certainly evolve over time. At the moment quality and coverage is just not where we would like it to be, so traceurl.com was looking for a solution.
We found an acceptable solution in still using the hostip.info database as the primary lookup source. In case an IP can not be found in the hostip.info database traceurl.com performs a second lookup against the geoiptool.com website. That way the coverage and quality of the two services are aggregated. With this solution traceurl.com reaches a ratio of locatable IP way above 90%!