 Umweltfreundliche Webseiten gehen und was WordPress damit zu tun hat, wie man das alles zusammenbringt. Okay, this talk will be about green websites and what WordPress has to do with that. It's a 15 minute talk. There will be a break with a bit of Q&A. If you ask questions right in the middle, don't take too much time. If anybody is still standing, then sit down. And you can talk about the last talk outside please. Thank you. Welcome and have fun. Stop. Ah, jetzt, jetzt, okay. Genau. Danke für euren Interesse. Thanks for your interest in this project. 15 Minuten sind jetzt nicht so viel. 50 minutes and much. I'll try to go as fast as I can to tell you the concept of the idea behind the green website. It's about climate friendly WordPress websites, which is something I'd like to have or that I'd like to motivate you all to. And the question is, what is a climate friendly website? There are highly probably many different models and ideas. I had a bit of a look. And I'll be telling you what I understand. Es geht um die Auswirkungen in dem Teil der Website aus Riemer. Es geht um den Energieverbrauch. Und das Ganze ist natürlich ein bisschen schwer abgeschätzt. Es gibt verschiedene Zahlen. Und es ist ein hard thing to estimate. There's different numbers about what, about electricity, the interviews and data from those users. Und es gibt zum Beispiel auch Zahlen zum Energieverbrauch von Informations- und Kommunikationssitzung, wie als Ganzes. Da gehört auch Energie, Information und Kommunikationstechnik als hohe Usus. Die Internet ist part of that, but also TV and other technologies. Und da gibt es aktuell eine Zahl, dass ungefähr 10% des globalen Energiebedarfs, about 10% of global energy used, ist für ICT, so Information and Communication Tech. Also das sind natürlich wieder je nach, je nach. So, of course, there are different explanations, so it's between 5% and 10%. But then right now, it's about 2% of our CO2 emissions worldwide, which is roughly equivalent to fuel, also von Sprit, der Luftverindustrie entspricht. Also es ist schon auf jeden Fall sicherlich bekannt in dem Bereich. Und das Internet, das Web ist natürlich Teil von ICT. So, the internet and the web are part of the ICT-Sector. Und dann kann man überlegen, was auch, da gibt es auch verschiedene Statistiken, zum Beispiel, kann man sich den IP-Traffic anschauen. Da gibt es die Statistiken, die man kann anschauen, wie die einzelnen Internet, ganz oben haben wir aktuell die various Services, wie Netflix, YouTube. At the top, we have streaming services, such as Netflix, YouTube, they have about 60, 70% und beim Web, wie man Web definiert. Aber da gibt es unsere einzelnen Zahlen, 25% ist IP-Downstreams, das Web, 25%-30% of IP-Downstreams sind die Web, das does not include social networks and videos on websites. So, we're burning a lot of energy for ICT und es wird halt auch immer mehr, so, wenn man sich den IP-Traffic anschaut, der verdoppelt sich, ungefähr alle 18 Monate. So, if you look at ICT-Traffic, it doubles about every 18 months, it will be a lot more in the next years and decades. So, you should maybe have a think about putting some leverage on that. Aside from energy usage, there are other negative aspects, especially in production, for example, for the production of electronics and electrical devices. You have rare materials such as the rare earth elements. They have to be dug out of the ground, out of mines. You have a lot of child labour in that sector. Shitty work conditions and factories. And of course, you have all the junk that's left over and partially toxic. Sorry. So, you're burning a lot of energy, you have other negative aspects to the whole thing. And I'm going to focus on energy usage. And I'll say, a climate-friendly website is a website that, compared to other websites, uses less energy. What's that mean? How do you achieve that? You have to take a look how that energy usage actually comes into being. So, if you have a general look at ICT, there's four categories. The energy used to run the consumer devices. The energy used to run the network. Energy for the data centers and servers. And the energy used in producing all that. Right now, those four categories are about equal at 25% each. They'll probably shift over the next years and decades, because more and more people are using smartphones that use less energy. So, the traffic in the network will rise significantly, because the IP traffic will rise. It's going to be more efficient, but usage as a whole will rise. And a thing you can do is have a look at the direct energy usage, which is mostly network traffic. But you can also reduce the energy used in producing your hardware. If you have more complex websites, you need more complex and more powerful devices to run them on. So, if you're using a 5-year-old smartphone to try to access a website, sorry, does this mean I've still got 10 minutes or these are 10 minutes? Oh, I've still got 10. Okay, I was a bit scared. Okay. You can reduce the energy used in production of hardware by trying to build websites in such a way that a very old tech can still access them. That's actually a bit more significant than reducing the energy uses of the device itself. Sure, if you're visiting a website with, for example, a smartphone, that will drain the smartphone's battery. But if you have a look at the lifetime energy usage then you have 80% or 90% energy used in production and about 10% ish during actual use. So, you can do all of that pretty efficiently by designing these websites more lightly. If you look at a website from right now they all get more difficult to access. There are many pictures, there are many videos. There are videos in the background. There's webfonds and very difficult to run scripts and sheets. So, the size of a website is about four megabytes at the moment. Two years ago it was half as much and ten years ago it was only a few kilobytes. That's just the trend at the moment. Of course, there's the background that the picture and the video also conveys some meaning to the user. You'll get attention by doing that. You may also trigger a motion. That's very important in marketing and websites are also marketing most of the time. So, this is wanted and energy levels aren't really relevant in that decision. I do also come from web development and it's hurt very few times to have to develop a website with a category of energy savings in mind. You can also see that very well by looking at your data usage or your web traffic. So, if you want to design a friendly website you might want to consider these categories more carefully. You have to think about if you do want videos, pictures do you want more difficult web fonts or is it maybe just enough to use whatever. Now I'll probably arrive at the project I'm doing. This is where GreenerWP comes into the playing field. I thought a more sustainable web. I myself come from the WordPress community. I thought this was a very good project to reach many people because WordPress is kind of a very big part of web development. There's a giant user base. There's over 6 million people using it. So it will reach developers, private people and also development companies. So it has a lot of potential. I thought you may be able to do something with that. A little overview of this project. I've been working on this for 3 months. It's funded by Prototype Fund as well. It's a bit younger. It's also in the project phase right now. It's open source right now. It consists of a website. It's not only a technical project. It's also about optimization and technology. My point is you have to think about which content you offer on the website. It's not only optimization because by optimization alone you won't be able to achieve much because the more efficient something gets, the more people use it. I do also want to talk about content. So there's this website which has a lot of background info and guides and how to's. There's also a website scanner. You can use this scanner to type in your website as a URL and this machine will generate a rating of your website. You can give you direct hints at what you could improve. There's also WordPress Plugin for people who host websites themselves. They can optimize this and they will get step-by-step tutorials on how to improve. There are also tweaks like loading of images from the project. Right now this project is worked on in the sense of features. I'm looking into whether a usual WordPress user can use this efficiently. What is also important for me is to communicate to the users because they can use this if no one recognizes. Maybe there should be some reward in using this and you could tell your users hey, I'm better than other websites. I'm thinking of multiple different things about how to do this. If you have feedback, look at the project. Some things you can think about again the background of this what is optimizable, what is not. Look at it, try it. Give me feedback. I'm sure you can add to this. There will be today and there have already been interesting talks about this. Just find out more knowledge about this topic. Maybe there is some time for two minutes of questions. Do reach out to me. I will be here on congress for the next few days. It's not only about WordPress, it's about everything. It's a nice possibility just to optimize. If you have a question, just put up your hand and I'll give you the mic. First of all, what's your big difference except for example the Google page speed tools. The other thing is what's your opinion on gray robots and such. So everything that isn't commercial but doesn't burn a lot of traffic has like 75% of its page views through Majestic or Subversion or something else that's just checking backlinks. So maybe you would be able to save a lot of stuff just with a simple robots.txt on the server because the robots will stay away. So, firstly, these scanners are based on Lightspeed. These tools from Google. There's small little differences. The evaluation of these pages are also about how quickly does this page load. It won't be negatively rated if the website just continues on loading after the main page is loaded which is bad for energy efficiency. I do things differently in that I use other measuring systems and other measuring factors. It isn't really a big difference in implementing these and not implementing these. Also, of course, it depends on the pages what is sensible to optimize. You might have to lock out bots. That would be a possibility. Of course, it's about talking about these things and making these things popular. I try to make people sensible for this problem which the sensibility for that isn't there right now. So, I'm trying to talk to people if you're watching Netflix, if you're watching YouTube, you don't always need to watch things in Full HD or 4K. You might be able to save some energy and mobile data by not doing that. Of course, I'm from the WordPress area. This is just my small little contribution in this.