Speed Testing without Net Neutrality

So I wanted to ask a question that's been on my mind for a while but that I keep forgetting to ask. With the removal of net neutrality how trustworthy are speed tests? Net Neutrality prevented ISPs from throttling down certain sites and prioritizing others. So, let's say ISP A says, we've had alot of speed complaints. Let's prioritize the speed test websites and servers and make them think they're getting better service than we are really giving them."
Can this type of thing ocurr? I'm not at all technical in this particular area so wanted to see what others think and know about if this can or does happen currently.

One thing that prompts me to ask too is the difference in speed test results from site to site. How can a consumer themselves check to see if this is at all happening if it is possible. Even negligible amounts of down throttling would be an issue because you're paying for a certain speed to begin with. Thanks. Look forward to everyone's response. Please keep it civil and be nice to eachother and me though. Like I said this isn't my area of expertise and just had the burning question that I couldn't answer on my own.

 With the removal of net neutrality how trustworthy are speed tests?

speed tests were never trustworthy or worth a damn, IMO

Why is that? I've always thought along those same lines. I'd figure the only way to actually measure the speed at at the line where it enters the house with a physical machine versus a web based utility.

 With the removal of net neutrality how trustworthy are speed tests?

speed tests were never trustworthy or worth a damn, IMO

I'm still not a proponent of net neutrality.  Generally, the more legislation government adds, the worse things get -- and the Internet is no different.

Having said that, I do agree with the clause that prohibits transit providers from artificially inhibiting a sites ability to communicate on the Internet.

 

Speed tests can be useful for novice users to validate that their internet connection is working at least to some degree.  It's important to keep in mind that a "speed test" is comprised of numerous factors, all of which are not specific to your ISP connection.  Typically you want to view the results of a speed test as "best case" for this particular instance in time to that particular speed test server.  You may run the test again later and find a significantly worse/better result.

 

It's also worth highlighting that many websites will limit the maximum speed at which they send data to users; Even if you have 100 Gbps download speed, if the host is only sending at 100Kbps, you're only going to see 100Kbps tops.