Today's sustainable web tip: it's great to see so many organizations using an svg version of their logo on their website these days. svg files so much smaller than binary formats. Not only does this reduce the impact of your site, but also it helps partners displaying your logo.
If you already serve your logo as an svg - 🎉! But please be kind to your users: don't set a fixed width and height. And don't apply a stroke or fill color to every single element. Use styles to apply colors instead.