Question: I'm looking for a website creation tool that provides customizable themes, SEO optimization, and mobile-friendly designs.

If you're looking for a website builder that lets you customize a site's design and that also offers SEO and mobile-responsive designs, Butternut AI is a great option. It lets you create and customize websites with no programming expertise, with built-in search engine optimization and mobile responsiveness. The service offers a free plan for testing, a Pro Plan at $15/month, and an Enterprise Plan for more advanced features.

Another option is Zarla, a no-code AI website builder that can generate professional sites in seconds. Zarla offers AI-generated text optimized for search engines, a mobile editor, free registration of a custom domain, and built-in SSL security. It also offers a free trial and a monthly subscription at $9, so it's a good option for new users. Zarla also prioritizes website speed with high PageSpeed Insights scores.

For a fast and cheap option, check out Launched. This AI-powered tool generates professional websites in minutes, including hosting and a domain name, with no upfront costs. It's got a drag-and-drop editor, search engine optimization and SSL security. Launched offers a 30-day free trial and a Premium plan at $5/month, so it's good for individuals and small businesses.

If you just need a quick and easy way to create a landing page, 60sec.site is worth a look. This AI-powered site lets you create professional landing pages in less than 60 seconds. It's got features like customizable themes, search engine optimization, mobile-responsive designs and SSL certificates. The service offers a free option as well as paid plans starting at $10/month.