Internet speed reportCzech Republic
Aggregated internet performance from the source named below. IP-based geographic annotations are approximate.
Internet performance in Czech Republic
Available aggregates represent 346 tests completed during 2025. No raw-test distribution or time series is available here. Download performance was 337.2% better than 2024; this comparison describes two user-test samples, not every connection in the area.
Measured download percentiles are unavailable. We do not infer them from the average. A pair of percentiles cannot reconstruct a full distribution, so no percentage-of-tests curve is displayed.
How reports are calculated
Historical user speed-test results are normalized and aggregated by period and geography.
Dataset: bandwidthplace.aggregate
Data methodology
Historical reports
Czech Republic Internet speed report: methodology and answers
During 2025, this report represents 346 aggregated tests for Czech Republic. The central download value is 301.63 Mbps, upload is 138.24 Mbps and latency is 40.3 ms. These figures describe the available measurement sample, not every household or address.
| Measure | Value | Context |
|---|---|---|
| Download speed | 301.63 Mbps | 337.2% better than 2024 |
| Upload speed | 138.24 Mbps | 265.1% better than 2024 |
| Latency | 40.3 ms | 49.4% better than 2024 |
| Packet loss | —% | Share of packets not successfully delivered |
Methodology
Users initiate speed tests, which are assigned to an approximate country or city using IP-based geography and grouped into the selected period. We aggregate the named historical speed-test source after excluding invalid or incomplete rows where identifiable. The resulting user-test sample is used to calculate the ranking, summary and report metrics; a country with no tests in a period receives no calculated result. Displayed aggregates come from the imported measurement sample.
Full methodology →Data freshness
- Page updated
- Data period
- 2025
- Responsible editor
- Internet Analysis Research Team
Primary sources
- Measurement Lab NDTPrimary measurement protocol and dataset documentation
- M-Lab data documentationAccess, schemas and limitations
- Internet Analysis methodology
Limitations
- IP-based geographic annotations can be approximate.
- People who run a test are not a statistically representative sample of every resident.
- Aggregated results do not guarantee performance for a specific ISP, plan, address or time of day.
- Only imported percentiles are shown; missing bounds remain unavailable.
Related questions
What was the internet speed in Czech Republic during 2025?
The available sample reports 301.63 Mbps download and 138.24 Mbps upload, with 40.3 ms latency.
How are the ranking, summary and reports calculated?
They are calculated from speed tests initiated by users, grouped by period and approximate IP-based geography. Valid test measurements form the sample used for aggregate performance metrics and ranking; no result is invented when the sample is empty.
Does this result represent every internet connection?
No. It summarizes tests present in the source dataset and should not be interpreted as a census of all connections.
Why can my own speed test differ?
Device, Wi-Fi, plan, server path, congestion and time of day can all make an individual result differ from an aggregate report.