Different speed tests often disagree because they do not all measure under the exact same conditions.

Different servers

Distance, routing quality, and server load all affect results.

Different test methods

Providers vary in connection count, duration, and how they treat overhead.

Home-network traffic and ISP congestion can change even seconds apart.

Signal strength, interference, and device location can dramatically shift a result.

Older hardware or busy browsers can become the bottleneck.

Encryption and extra routing steps usually add delay and reduce throughput.

Run a fresh test and compare your result under cleaner conditions.