The attack is trivial. An attacker visits your website, views the page source, and copies your AIza... key from the Maps embed. Then they run:
Even Benjamin Franklin's face on a piece of paper can feel like a mere proxy
，详情可参考同城约会
The same picture is seen across the transport network - currently a third of railways are at risk of flooding, which leads to cancellations and damaged infrastructure.
The core of OsmAnd's HH-Routing is an elegant two-level hierarchy built upon "area clusters."