Vercel (Recommended)
1. Download the HTML file.
2. Go to vercel.com > Add New > Project.
3. Drag & Drop the file/folder or Import from Git.
4. Hit Deploy. No Build settings needed.
Netlify
1. Create a folder named "site".
2. Rename your file to "index.html" inside it.
3. Drag the "site" folder to app.netlify.com/drop.
Custom / cPanel
1. Download the HTML file.
2. Rename file to index.html.
3. Open File Manager in cPanel.
4. Upload to public_html folder.