The developers of the Opera web browser have been inventive in past years, and it is a confirmation of their hard work that many of the features that they have introduced in Opera are now part of nearly every other Internet browser as well.
Not all features on the other hand have been "borrowed" by other companies. Opera Turbo is such a feature. First introduced in 2009, it built on Opera's extensive knowledge of mobile browsing.
In mobile browsing, even more so years ago, speed was essential. Imagine having to wait a minute or more for a website to download, which was not uncommon those days. Today broadband speeds are more common but there are still situations and places in the world where you do not get high speeds, where every Kilobyte counts so to say.
And that's where Opera Turbo revolutionized the browsing. In its core, Opera Turbo is nothing more than a way to compress websites. Many users know that they can compress files to save space, which is also beneficial if those files need to be send by email or uploaded to the web.
The very same concept, albeit more sophisticated, is being utilized by Opera Turbo. Part of the traffic is redirected through Opera servers. The Opera server compresses elements of that website and sends them to the user's browser. The benefit is a faster transfer of the website to the user's system which in turn means that the website is displayed faster in the browser interface.
Note: Opera Software introduced support for Opera Turbo in version 33 of the "new" Opera browser. The company removed support for the Opera Turbo feature in Opera 60 in 2019.
Lets take a look at the basics of Opera Turbo first:
You activate and deactivate Opera Turbo with a click on the Turbo icon in the Opera status bar.
The compression technology is disabled by default, and needs to be enabled before it becomes active in the web browser.
The icon turns green when it is activated so that it is easy to identify the different modes on first glance.
With Opera Turbo on, all websites that use the http protocol are redirected through the Opera Turbo servers where they are compressed before send to the user computer. HTTPS connections, for instance on financial sites or sites like Facebook or Twitter are not compressed by Opera Turbo.
You can disable Opera Turbo at anytime with another click on the Turbo icon.
Now that we have established what gets compressed, we should take a look at the benefits in detail.
The old version of Opera Turbo back in 2009 managed to reduce the size of the page download by 25% to 75% depending on the site in question. A 1000 Kilobyte site like Wired for instance was reduced to 550 Kilobytes which in turn meant that the web site loaded in about half the time it would have without Opera Turbo.
With the old Opera Turbo, users got a 25% to 75% speed increase over standard connections to websites. Opera recently introduced the new Opera Turbo. The main improvements are a switch from the JPEG format for images to WebP and improved network connections. Take a look at how this reduced the overall transferred data on the following sites.
As you can see, the switch to WebP and the additional improvements have reduced the file size by another 22%. Even better, the image quality has actually improved thanks to the format switch.
But those tests have been performed by Opera, how about some of our own?
You save a lot with Opera Turbo, especially on sites with lots of images that are not overly optimized. The only sites where you won't save as much as multimedia sites, for instance Youtube as the videos are not compressed.
Still, if you are short on bandwidth you will notice a huge speed increase by enabling Opera Turbo.
There is not really a lot that you can criticize. Probably the two main points are that image quality may be noticeably worse in some occasions and that the traffic is redirected through the Opera server.
It should be clear that the quality of images gets reduced if they are compressed by Opera Turbo. That's one of the downsides of the feature. There does not seem to be an option to load individual images without compression if Opera Turbo is enabled. The only option for now is to disable Opera Turbo if you want to see the images in their original quality.
Privacy on the other hand is a completely different beast. It basically boils down to this: If you do not like it do not use it. There is not really anything that you can do about the fact that Opera Turbo requires that the traffic is routed through Opera as this is the only way to compress the data before it gets send to your computer.
Lastly, it needs to be noted that websites will see a different IP address when Opera Turbo is active. While that actually improves privacy for some users, it can also mean that you may see contents, for instance advertisement, optimized for a different country in the web browser.
Internet users who are on dial-up connections, slow networks or on a limited high-paying bandwidth plan benefit the most from Opera Turbo. The ability to turn the feature on or off with a switch should be enough to convince users to give it a try, considering the speed gains and bandwidth reductions that can be achieved with Opera Turbo.
Interested users can download the latest version of the Opera web browser from Opera.com. And yes, all Opera browsers come with Opera Turbo by default.
This concludes the first part of our Discovering Opera series. Stay tuned for more.
The other parts of Opera Discovery series
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.