Less than 5ms (average of down bloat and up bloat) - A+

Less than 30ms - A

Less than 60ms - B

Less than 200ms - C

Less than 400ms - D

400ms+ - F

(there is no "E" grade).

To recap: to get an "A+", ( average(uplift during upload) + average(uplift during download) ) / 2 must be less than 5ms.

Currently the majority of people grade "C" or worse. This is because most equipment and software currently in use has bufferbloat issues.

To see a graph of past bufferbloat results over all tests please use the Speedtest Results link:

»/speed ··· ferbloat

Speed Grades are given based on the top speed vs others on the same technology, in the same country:

top 2% - A+

top 10% = A

top 20% - B

top 50% - C

top 80% - D

otherwise : F

Note that whether the grade is "good" or "bad" is open to interpretation. Higher speeds and therefore higher grades generally cost more. You may get an "A" or "A+" and be paying too much. You may get an "F" and yet have a good value connection.

Quality refers to average detected packet loss / re-transmit percentages during download phase. The higher the packet loss / re-transmit percentage the more inefficient the connection is, and a very poor result may be indicative of congestion, inside wiring issues or other problems that need addressing.

1% or less - A+

2.5% or less - A

3% or less - B

5% or less - C

12% or less - D

over 12% - F