UK Broadband Data Explorer
Enter any UK postcode area, town or city to explore a bespoke, detailed, interactive picture of its broadband capability and provision.
… Or enter up to 20 postcode areas (the first part of each postcode), separated by commas. For example: ST14, ST15, ST16.
The free Explorer may be used three times per day, with each search covering up to 20 postcode areas. For more queries or larger search areas, request an access key.
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Before you explore
Before continuing, please confirm that you will:
- Use the free Explorer only for permitted personal, academic or journalistic purposes.
- Credit fibredog.com when quoting or publishing individual findings.
- Not scrape, automate, systematically extract or reconstruct substantial datasets.
- Obtain written permission before commercial reuse, substantial republication or incorporation into another product or service.
- Acknowledge that outputs use Fibredog PawPrint forensic watermarking to help identify mass extraction and unauthorised reuse.
Security check
Tell us what data you need
Access to additional data is approved for specific locations, purposes and periods. Give us enough detail to assess the request properly.
Use your access key
Enter the key supplied by Fibredog. It will be linked to this device and will unlock only its approved locations.
Global filtersChoose an area to begin Waiting for an area
Choose a geographical area to populate the Global filters
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool, the Global filters, will let you refine the Broadband Data Explorer by evidence year, individual postcode area, provider category and observed broadband provider.
These controls update every compatible broadband chart, table, statistic and downloadable result together. The recommended Chaos Filter applies Fibredog’s corrected evidence methodology to reduce provider-location noise, implausible observations, thin samples and known bias in reported speed-test evidence.
Global filter debug – Version 29
Broadband evidence overview
Broadband evidence overview
Waiting for a geographical area
Source: fibredog.com
Choose a geographical area to populate the broadband overview
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool, the broadband overview, will summarise the measured and reported broadband evidence for that geographical area.
It compares measured download and upload speeds, the real download range, tests below 30Mbps, latency, reported availability, changes over time, the size of the measurement evidence base and the broadband providers observed in the selected area.
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Clear permission for the results you can access
Results available through the free version of this tool may be used for personal, journalistic, academic or commercial purposes.
Larger search areas, additional queries and deeper reports require a Fibredog access key. See the options at the top of this page.
INTERACTIVE BROADBAND MAP
Broadband map for your selected area
Explore the measured broadband evidence for your selected area.
Choose a geographical area to populate the broadband map
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool, the broadband map, will plot the selected postcode areas at their real geographical locations.
It compares median measured download speeds across the selected area. Each postcode area is classified as relatively slowest, average or fastest, while its evidence summary shows measured download and upload speeds, latency, qualifying measurements and observed broadband providers.
Slowest
Average
FastestHOW TO READ THIS MAP
Compare broadband speeds across your selected area
Each Fibredog pin is placed at the geographical centre of its postcode area. The circle around it reflects the number of qualifying tests recorded there, not the physical size of the postcode area.
The circle colour shows how that postcode area’s median measured download speed compares with the other postcode areas currently selected.
The colours are relative to this selection, not fixed national speed bands. Hover over or select a Fibredog marker to see the postcode area’s complete evidence summary.
Source: fibredog.com
of qualifying tests.
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Map debug – Version 32
COVERAGE VERSUS MEASURED REALITY
What’s available versus what people have
Compare reported coverage with the broadband speeds people actually receive.
Choose a geographical area to compare broadband availability with measured reality
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool will compare reported network coverage with the broadband speeds people actually receive.
It shows availability across four speed tiers, the speeds measured in qualifying tests, the availability-to-uptake gap and the strength of the supporting evidence.
Source: fibredog.com
Coverage/reality debug – Version 23
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No single best provider or package exists – only the best pick for you personally. Fibredog’s YourMatch™ system uses thousands of provider metrics and a lot of maths to find you your perfect match.
MEASURED TEST DISTRIBUTION
What is the speed distribution in your selected area?
See how measured download speeds are spread across all qualifying tests.
Choose a geographical area to explore its measured speed distribution
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool will show how qualifying download speeds and latency are distributed across the selected area.
It explains the slowest 10%, median, fastest 10%, fast-to-slow divide, latency thresholds and the strength of the supporting test sample.
—Latest selected year
—Qualifying download tests
—Strong and reliable results
Distribution debug – Version 15
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Provider landscape
Which broadband providers were observed?
Real-world speed-test results from the selected postcode areas. This shows what was observed, not availability.
Choose a geographical area to see which broadband providers were observed
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool will summarise the providers identified in real speed tests. This is evidence of observation, not a measure of availability.
Providers use the same scale so you can compare measured download speeds, upload, latency, evening change, test volume and the postcode areas in which each provider was observed.
—Latest selected year
—Observed providers
—Qualifying download tests
How observed providers compare
All providers use the same scale, so you can compare speeds at a glance.Source: fibredog.comCompare two observed providers
See how two providers’ performance compares in the selected area.
Speeds are from qualifying download tests across the selected area. Results can be affected by Wi-Fi, device, time of day, congestion and other factors.
HOW TO READ THIS CHART
Compare providers observed in measured tests
Each card summarises qualifying speed tests attributed to that provider in the selected postcode areas and period. Being observed is not the same as being available to every household.
All cards use the same 0–200 Mbps scale. Wi-Fi, devices, packages, congestion and time of day can affect individual results.
View the provider inventory as a table
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Provider landscape debug - Version 28
Five-year time machine
How has broadband changed?
Choose a geographical area to explore its five-year broadband journey
Once you have entered a UK postcode, town or city and selected Explore, this part of the tool will track how broadband evidence for the selected area has changed across the latest five years.
You can follow median and slowest download speeds, upload, latency, reported availability and the number of providers observed.
Each point uses the same calculation as the corresponding one-year section. Missing years are not joined, years covering only part of the selected area are labelled and large changes in test numbers are flagged.
Five-year time machine debug - Version 12
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Tools, tools as far as the eye can see
Fibredog has a dizzying array of useful tools to help you both understand your own broadband connection better and dig deep into how providers perform in the real world.