Below are steps you can take to check if your ISP is throttling your Internet speed.

1. Check your Internet speed. Run an Internet speed test to ensure that your Internet service is functioning properly and at the speed you pay for.
2. Perform the same diagnostic tests at different times of the day to compare results. These tests may reveal varying levels of speed throughout the day.
3. Analyze your results by looking for patterns. If you find that your speed sharply drops at a specific time, it may indicate that your ISP is throttling your connection.
4. Contact your ISP about the issue. Explain the results of the speed tests and ask if they are using any traffic shaping tactics or other strategies that could be causing lower speeds at certain times.