When a web server receives an HTTP request, it processes the request and sends back a response. However, there are certain types of requests that can cause the web server to return an error code known as 400 bad request.

One such type of request is when Google Maps redirects users from their search results page to Fix It Right Plumbing Adelaide's website. This might seem harmless, but it's actually a case of a redirect URL.

1. When a user clicks on the link provided by Google Maps, they are directed to the Fix It Right Plumbing Adelaide's website.
2. This is an example of a 301 permanent redirection, which means that the original request was not intended to be redirected.
3. As a result, when the web server receives this type of request, it responds with a 400 bad request error code.

In order to identify and avoid these types of redirects, users can check the URL provided by Google Maps. If the URL is not being redirected to Fix It Right Plumbing Adelaide's website, then the user has successfully bypassed the redirect and accessed the intended webpage.

It's also worth noting that some websites may use a technique called "Server-Side Redirects" which can cause more complex redirects. However, these are typically not as straightforward to identify as 301 permanent redictions.

http://avtovolgograda.ru/redir/?url=http://www.google.com/maps/place/Fix%20It%20Right%20Plumbing%20Adelaide/@-35.0004451,138.462881,10z/data=!3m1!4b1!4m5!3m4!1s0x0:0x7d677cc5e99b20be!8m2!3d-35.000767!4d138.7430684?authuser=3