Internet Connectivity Index 2025: The most welcoming internet – Methodology and data sources

Welcome to the methodology page of the Internet Connectivity Index 2025! Here you’ll learn how we measured internet safety, quality, and affordability to find out which countries offer the best internet for travelers. We’ll walk you through the key dimensions and attributes, the data we used, and the steps we took to build a fair, easy‑to‑compare ranking of countries.

Globe with a plane circling it, symbolizing the Saily Internet Connectivity Index.

Dimensions of the Internet Connectivity Index 2025

To measure how “welcoming” (accessible and user friendly) a country's internet is for travelers, we built an index based on four key areas (dimensions). Each dimension consists of a set of carefully chosen attributes that capture what really matters when going online abroad.

Cyber safety

Evaluating a country’s digital security through its infrastructure, response to cyber threats, and legal protections.

Internet quality

Assessing internet speed, stability, accessibility, and coverage, including mobile and broadband connections.

Internet affordability

Understanding the cost of internet access.

Internet freedom

Measuring the openness of online access, including restrictions, blocked content, and respect for user rights.

Selection process

We chose the index dimensions and attributes through a careful, step‑by‑step process, outlined below.

Step 1: Building the framework

We started by figuring out the main areas that matter most to people using the internet while traveling. We made sure our framework was based on real experiences to reflect what travelers actually need and care about.

Step 2: Choosing dimensions

We settled on four key dimensions to cover everything that’s important to travelers when connecting to the internet in another country. Each dimension includes several specific factors (attributes) that help us measure how easy and “welcoming” the internet is for visitors.

Step 3: Sourcing data and selecting attributes

Using our framework, we carefully selected the right attributes for each dimension. Then, we found reliable data to support those attributes, making sure we had enough trustworthy information to rate each country.

In developing this index, we focused on real-life experiences of using the internet while traveling, combined with the data available to us.

Our research team also made sure to pick attributes that were different from each other to cover all important parts of each dimension. This approach helped us keep the index accurate and reliable.

Why we chose these dimensions and attributes

We wanted our research to cover all the important aspects of using the internet abroad. We identified that four key areas – cyber safety, internet freedom, affordability, and quality – can give us a clear picture of how a country’s internet measures up.

Finally, what makes our approach different is that we don’t just look at how good or accessible the internet is – we also consider data affordability.

How we chose our data sources

We only used data sources that met three key criteria:

Reliability

We only used data from well-known, credible sources, like the UN and the World Economic Forum.

Recency

We focused on the newest data available, mostly from 2024 and 2025, so the index reflects the latest trends and realities. All of the data was analyzed in early 2025.

Coverage

We looked for data that covered as many countries as possible. This way, our index gives a global view and allows fair comparisons between places.

Dimension and attribute breakdown

Cyber safety

This dimension looks at how well each country is prepared to respond to digital threats. It covers three main aspects – the strength of its infrastructure, its ability to respond to cybercrime, and legal protections. Together, these attributes make up 25% of the overall index.

  • To assess a country’s infrastructure, we used its technical, organizational, and capacity development scores from the Global Cybersecurity Index. Each attribute is weighted at 0.33, and this sub-dimension is weighted at 0.33.

  • To assess the country’s ability to respond to cyber threats, we looked at four areas of the National Cybersecurity Index — incident response, crisis management, fighting cybercrime, and military cyber defense. Each attribute is weighted at 0.25, and this sub-dimension is weighted at 0.33.

  • Finally, for legal measures, we used data from the National Cybersecurity Index covering cybersecurity policies, protection of personal data, and critical information infrastructure. Each attribute is weighted at 0.33, and this sub-dimension is weighted at 0.33.

Internet quality

This dimension covers the experience of using the internet in each country. A higher score means a more reliable internet experience across the country. The overall weight of this dimension is 0.25.

  • We used the Digital Quality of Life Index 2024 to review three main factors — internet speed, stability, and speed growth. We also checked for internet outages using the Internet Shutdown Tracker and gave it a negative weighting of 0.1. This sub‑dimension has a total weight of 0.5.

  • To evaluate internet accessibility, we reviewed the percentage of the population with network coverage. The data we used came from the GSMA Mobile Connectivity Index, which shows the share of people covered by 2G, 3G, 4G, and 5G networks. This sub‑dimension also has a weight of 0.5.

Internet affordability

This dimension looks at how much mobile internet costs in a country. The higher the score, the more affordable mobile internet is for travelers in the country. The overall weight of this dimension is 0.25.

  • We looked at the average mobile data cost to understand how expensive using the internet in a country is. We reviewed the cost of 1GB of mobile data from Best Broadband Deals. Here, the scores are inverted so that more affordable options have better scores.

Internet freedom

Finally, we wanted to understand how accessible a country’s internet is. We looked at how easy it is to get online, whether certain websites or platforms are blocked, and any risks when trying to visit restricted sites. The overall weight of this dimension is 0.25.

  • We used the Human Freedom Index to assess this dimension, focusing on three attributes – obstacles to access, limits on content, and violations of user rights. Each attribute is weighted at 0.33.

Top travel destinations for staying online with Saily

Based on Saily user trends, these countries rank as the most popular destinations for travelers relying on mobile data to stay connected abroad.