How come my my internet speed over the limitation of ISP offer?

[HungLikeAHorsefly]

I don't even know how to read what you've said. How are you testing these speeds? What method? How many times? What intervals?

In the 'biz, we call your advertised rate your "commit rate" or CIR. A lot of service providers allow you to burst past your CIR to a "peak rate", or PIR... but only for a little while. If you do a sustained test, you'll find that your bandwidth will drop back down to your CIR after you've transmitted a certain number of bytes.

It's also worth noting that most ISPs use traffic shaping to prioritize common speedtest sites like Ookla, so you'll get fantastic results there and less than stellar results on third party sites that don't have a direct peering relationship with your ISP. Those will give you a more accurate gauge of what your throughput actually is.

[WindAtMyBack]

It's just an advertised speed. The actual speed can be higher or lower than what is advertised. It's usually lower, but sometimes it's higher.

If you use wifi, it might limit the speed. The ISP has no control over that since it depends on your equipment. There are a number of things that can reduce your speed.

[juicyjessie]

Internet speeds depend on many factors. Especially if you have it over copper cables. In UK, FTTC is not quite so bad, while FTTP is best.

In most cases, what you are quoted is a best guess from your ISP as to what you will get. Anything over that is a bonus.

Using Ethernet should give you slightly better speed than wifi, although 5GHz band is the fastest. Unless you can get the new 6GHz band.

[Anonymous]

Most phones until resent were able only to do 50.

It depends on server you get your stuff too as, if their speed is lower you will get max they give you.
and you should call your ISP to tell them that as they not giving you all what you pay for, if you get only less then half.

On net cable from your modem it could run faster then WiFi.

Did I understood your question right?

[SuccessfulHornDog]

That is the limit that they "guarantee" If it goes over that it's your benefit. Sometimes they cap it though to save it for other customers