Google, YouTube, Facebook: these names appear every year in web traffic rankings. In 2025, the most popular sites on the internet are no longer limited to these three pillars. Artificial intelligence platforms like ChatGPT and Gemini have risen among the most visited destinations in the world, reshaping the landscape of online usage.
When AI platforms become mass websites
Have you ever typed a question directly into ChatGPT instead of going through a search engine? This reflex, shared by hundreds of millions of users, propelled ChatGPT to the fifth position globally in the Similarweb ranking in May 2026. It is no longer a niche tool reserved for developers or tech enthusiasts.
You may also like : What Will the World Look Like in 2050? Essential Trends and Predictions
Gemini, Google’s AI assistant accessible via gemini.google.com, also ranks in the global top 15. These conversational interfaces capture an increasing share of web traffic because they meet a simple need: to get a structured answer without sifting through ten pages of results.
To better understand internet popularity with CGI Network, one must look beyond just the number of visits. The time spent on each site and the number of pages viewed per session count just as much as the raw traffic volume.
Related reading : Understanding the Importance of Small Bones in Our Spine Structure and Their Impact on Our Health
Popular sites in 2025: the recomposition of usage by category
The global ranking is no longer limited to two categories (search engines and social networks). Three families of sites now share the attention of internet users.
Search engines and conversational AI
Google remains the most visited site in the world, by far. But its role is evolving: Google is sending fewer and fewer users to third-party sites. Answers generated directly in the results page keep visitors on the platform. Yahoo maintains a loyal user base, especially in the United States and Japan.
ChatGPT and Gemini form a new subcategory. They do not replace Google for traditional browsing, but they absorb part of the informational searches, where the user wants a summary rather than a list of links.
Social networks and video platforms
YouTube holds the second position globally. Facebook, despite the aging of its active user base in some countries, maintains colossal traffic thanks to Marketplace and local groups. X.com (formerly Twitter) stands out with a particularly high average visit duration, indicating intensive usage by its active members.
TikTok continues to rise in power on the web, even if most of its traffic comes through the mobile app.
Utility and cloud platforms
cloud.microsoft is now included in the ranking of the most popular sites. This is a strong signal: cloud productivity ecosystems attract mass web traffic, not just social networks. Office 365, OneDrive, Teams – everything converges towards a single web entry point that generates billions of visits.
Why the ranking of websites is changing faster than before
For years, the global top 10 barely changed. Google, YouTube, Facebook, Wikipedia, Amazon: the positions were fixed. This stability has cracked for several concrete reasons.
- Generative AI interfaces have reached massive adoption in less than two years, an unprecedented pace for a new type of website
- Search engines are integrating direct answers that alter the browsing path, reducing outgoing traffic to other sites
- Cloud platforms (Microsoft, Google Workspace) are centralizing professional uses that previously went through locally installed software
This acceleration means that a site absent from the top 20 in January can enter it six months later. Web popularity in 2025 is measured almost in real-time.
Web traffic in 2025: what the raw numbers don’t show
A ranking by monthly visits provides a useful but incomplete snapshot. Two sites with the same traffic volume can represent very different realities.
X.com, for example, shows a high number of pages per visit. Each session lasts a long time, users scroll, interact, and return multiple times a day. In contrast, a site like Wikipedia generates shorter visits: the user finds their answer and leaves.
The time spent on a site reveals engagement better than simply counting visits. A search engine that retains its users on its own page (thanks to integrated AI answers) sees its session time increase, even if the number of pages viewed per visit remains low.
For businesses looking to position themselves online, this distinction matters. Being visible on a platform where users stay for a long time offers more value than appearing on a high-traffic site with immediate bounce rates.
Popular websites and visibility strategy: where to focus efforts
The fragmentation of traffic among traditional engines, conversational AI, and social platforms changes the game for anyone publishing content online.
- Google remains the main channel for acquiring organic traffic, but SEO must integrate the new AI features of results pages
- YouTube functions as a full-fledged search engine for tutorials, product reviews, and comparisons
- ChatGPT and Gemini cite sources in their responses, creating a new lever for visibility for sites that produce reliable and well-structured content
Relying on a single channel in 2025 means ignoring half of user journeys. The most popular sites on the web do not just capture traffic: they redefine how internet users find, consume, and share information. The next update of a global ranking could bring more surprises, especially if AI assistants continue to gain ground over traditional search engines.