The aim of the monitoring programme is to provide consumers with independent information on broadband performance across different providers, plans and technologies, to help them choose the best broadband for their household. Shining a light on actual broadband performance will also encourage telecommunications providers to compete on performance and not just price.

The programme is delivered by SamKnows, a world leader in internet performance measurement, covering almost half of the world’s internet population. More information about SamKnows can be found at

View the latest results

Become a broadband volunteer

To make sure we get an accurate picture of how New Zealand’s broadband is performing, we need volunteers from all parts of the country, of all ages, and on all types of broadband technologies, plans and providers to take part.

Sign up to be a volunteer

You will not be paid to participate in the programme, and it will not cost you anything to participate.

If you are selected you will be provided with a ‘Whitebox’ (similar to a modem) to plug in at home. The Whitebox performs automated tests on your home internet performance at different times of the day. It will not record any personal information or browsing history, and does not interfere with your internet service. Some of your broadband data will be used to conduct testing (see below). However, this is expected to have little to no impact on testing volunteers' broadband performance.

Volunteers will also have access to their own personal internet performance information, which may help diagnose problems and improve home broadband performance.

If you are selected SamKnows will contact you directly.

Data usage

The faster your broadband connection the more data the testing will use. We have set out the likely data usage in the table below.

If you have an unlimited plan, the extra data used will not affect your broadband performance.

For volunteers on ADSL, your connection will not be fast enough to use much data, so the testing should use less than 10% of your monthly cap.

If you have a data capped plan for VDSL, Fibre or Cable, you will probably not be selected for the programme, as we do not want you to get charged for going over your data cap.

If you have a Fixed Wireless (4G modem) connection with a data cap, you have the option of opting for the lightweight testing programme, which will test less frequently to keep the data usage down. Both the standard and lightweight testing usage is shown in the table below, so you can opt for the one you feel most comfortable with.

No matter what broadband plan, data cap or technology, the testing will not run when you are using the internet so it will not affect your broadband performance.

Plan or technologyTypical download and upload speedsTypical test data usage per month (GB)
ADSL (Copper)6-15 download, 1 upload5 – 10GB
VDSL (Copper)25-60 download, 5 upload15 – 35GB
Fibre '100/20'90-100 download, 15-20 upload50 – 60GB
Fibre 'very fast'700-900 download, 300-400 upload450 – 600GB
Cable 'max'700-900 download, 70-90 upload350 – 450GB
Fixed wireless (4G modems)20-60 download, 5-10 upload15 – 35GB (NZ standard)

6 – 20GB (NZ lightweight)

Technical FAQs

We have received a number of questions about our broadband monitoring programme following the SamKnows industry workshop in June 2018. We have aimed to address these with a technical FAQs document.

This is a living document and will be updated if and when further questions arise.

Read the technical FAQs PDF (127 KB)

Fibre Max investigation

Fibre Max, the fastest plan that MBNZ programme tests, has shown a very varied distribution of speeds over the course of the programme. A collaborative working group was set up to investigate the inconsistent performance of these plans. Multiple factors were discovered during the testing process and a detailed report was compiled. It is expected that changes to address the issues identified will lead to more improvements on Fibre Max plans in the future reports.

MBNZ – Fibre Max investigation report – 9 December 2020

MBNZ code of conduct

The purpose of the MBNZ code of conduct is to ensure that parties involved in the MBNZ programme act in good faith and in accordance with principles relating to data validation, “gaming” of results, and appropriate public usage of the MBNZ results. A list of signatories is included in the code, including the Commission and SamKnows.
Read the Code of Conduct PDF (157 KB)

Compliance statements

We actively monitor compliance with the MBNZ code of conduct and may publicly disclose non-compliant behaviours and related issues from tested Retail Service Providers (RSPs).