If you're serious about SEO, make sure to grab this AppSumo deal (no ref link) for $25 since langify doesn't provide image optimization out of the box (it's on our ToDo).
Google favors fast websites and therefore SEO optimized images. Here is a great read on that topic: https://www.semrush.com/blog/why-image-optimization-matters-the-past-present-and-future-of-image-optimization/
SEO image optimizer: https://appsumo.com/shortpixel/
If you have any questions on how langify boosts your SEO, don't hesitate to contact us at firstname.lastname@example.org!